teximage.c revision f7b5707d66678f09bec652ecce024a0da6cc4a4b
1f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul/* $Id: teximage.c,v 1.20 2000/03/20 14:37:54 brianp Exp $ */
2afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
3afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
4afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Mesa 3-D graphics library
5fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul * Version:  3.3
6afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg *
7663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
8afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg *
9afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Permission is hereby granted, free of charge, to any person obtaining a
10afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * copy of this software and associated documentation files (the "Software"),
11afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * to deal in the Software without restriction, including without limitation
12afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * and/or sell copies of the Software, and to permit persons to whom the
14afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Software is furnished to do so, subject to the following conditions:
15afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg *
16afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * The above copyright notice and this permission notice shall be included
17afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * in all copies or substantial portions of the Software.
18afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg *
19afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
26afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
27afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
28afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#ifdef PC_HEADER
29afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "all.h"
30afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#else
31fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul#include "glheader.h"
32afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "context.h"
33afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "image.h"
34fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul#include "mem.h"
35afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "mmath.h"
36afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "span.h"
37afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "teximage.h"
38afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "texstate.h"
39afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "types.h"
40afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#endif
41afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
42afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
43afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
44afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * NOTES:
45afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg *
46c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Mesa's native texture datatype is GLubyte.  Native formats are
47c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA,
48c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * and GL_COLOR_INDEX.
49c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Device drivers are free to implement any internal format they want.
50afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
51afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
52afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
53f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul/*
54f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul * Default pixel packing of Mesa's internal texture images:
55f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul */
56f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paulstatic struct gl_pixelstore_attrib DefaultPacking = {
57f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      1,            /* Alignment */
58f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      0,            /* RowLength */
59f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      0,            /* SkipPixels */
60f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      0,            /* SkipRows */
61f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      0,            /* ImageHeight */
62f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      0,            /* SkipImages */
63f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      GL_FALSE,     /* SwapBytes */
64f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      GL_FALSE      /* LsbFirst */
65f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul};
66f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
67f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
68afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
69afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
70afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Compute log base 2 of n.
71afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * If n isn't an exact power of two return -1.
72afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * If n<0 return -1.
73afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
74fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulstatic int
75fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paullogbase2( int n )
76afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
77afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   GLint i = 1;
78afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   GLint log2 = 0;
79afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
80afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (n<0) {
81afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return -1;
82afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
83afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
84afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   while ( n > i ) {
85afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      i *= 2;
86afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      log2++;
87afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
88afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (i != n) {
89afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return -1;
90afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
91afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else {
92afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return log2;
93afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
94afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
95afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
96afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
97afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
98afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
99afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Given an internal texture format enum or 1, 2, 3, 4 return the
100afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * corresponding _base_ internal format:  GL_ALPHA, GL_LUMINANCE,
101c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA.
102c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Return -1 if invalid enum.
103afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
104fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulstatic GLint
105fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Pauldecode_internal_format( GLint format )
106afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
107afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   switch (format) {
108afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA:
109afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA4:
110afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA8:
111afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA12:
112afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA16:
113afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_ALPHA;
114afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case 1:
115afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE:
116afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE4:
117afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE8:
118afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE12:
119afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE16:
120afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_LUMINANCE;
121afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case 2:
122afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE_ALPHA:
123afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE4_ALPHA4:
124afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE6_ALPHA2:
125afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE8_ALPHA8:
126afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE12_ALPHA4:
127afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE12_ALPHA12:
128afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE16_ALPHA16:
129afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_LUMINANCE_ALPHA;
130afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY:
131afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY4:
132afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY8:
133afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY12:
134afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY16:
135afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_INTENSITY;
136afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case 3:
137afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB:
138afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_R3_G3_B2:
139afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB4:
140afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB5:
141afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB8:
142afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB10:
143afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB12:
144afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB16:
145afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_RGB;
146afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case 4:
147afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA:
148afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA2:
149afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA4:
150afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB5_A1:
151afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA8:
152afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB10_A2:
153afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA12:
154afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA16:
155afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_RGBA;
156afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX:
157afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX1_EXT:
158afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX2_EXT:
159afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX4_EXT:
160afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX8_EXT:
161afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX12_EXT:
162afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX16_EXT:
163afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_COLOR_INDEX;
164afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      default:
165afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return -1;  /* error */
166afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
167afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
168afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
169afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
170afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
171afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
172afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Given an internal texture format enum or 1, 2, 3, 4 return the
173afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * corresponding _base_ internal format:  GL_ALPHA, GL_LUMINANCE,
174afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA.  Return the
175afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * number of components for the format.  Return -1 if invalid enum.
176afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
177fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulstatic GLint
178fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulcomponents_in_intformat( GLint format )
179afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
180afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   switch (format) {
181afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA:
182afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA4:
183afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA8:
184afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA12:
185afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA16:
186afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return 1;
187afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case 1:
188afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE:
189afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE4:
190afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE8:
191afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE12:
192afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE16:
193afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return 1;
194afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case 2:
195afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE_ALPHA:
196afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE4_ALPHA4:
197afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE6_ALPHA2:
198afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE8_ALPHA8:
199afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE12_ALPHA4:
200afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE12_ALPHA12:
201afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE16_ALPHA16:
202afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return 2;
203afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY:
204afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY4:
205afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY8:
206afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY12:
207afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY16:
208afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return 1;
209afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case 3:
210afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB:
211afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_R3_G3_B2:
212afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB4:
213afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB5:
214afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB8:
215afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB10:
216afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB12:
217afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB16:
218afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return 3;
219afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case 4:
220afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA:
221afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA2:
222afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA4:
223afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB5_A1:
224afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA8:
225afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB10_A2:
226afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA12:
227afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA16:
228afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return 4;
229afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX:
230afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX1_EXT:
231afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX2_EXT:
232afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX4_EXT:
233afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX8_EXT:
234afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX12_EXT:
235afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX16_EXT:
236afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return 1;
237afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      default:
238afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return -1;  /* error */
239afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
240afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
241afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
242afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
243afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
244fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulstruct gl_texture_image *
245fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulgl_alloc_texture_image( void )
246afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
247bd5cdaf4442872d3cd2ff94eeafadd481d27fcfbBrian Paul   return CALLOC_STRUCT(gl_texture_image);
248afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
249afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
250afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
251afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
252fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
253fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulgl_free_texture_image( struct gl_texture_image *teximage )
254afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
255afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (teximage->Data) {
256bd5cdaf4442872d3cd2ff94eeafadd481d27fcfbBrian Paul      FREE( teximage->Data );
25791baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul      teximage->Data = NULL;
258afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
259bd5cdaf4442872d3cd2ff94eeafadd481d27fcfbBrian Paul   FREE( teximage );
260afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
261afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
262afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
263afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
264afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
265afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Examine the texImage->Format field and set the Red, Green, Blue, etc
266afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * texel component sizes to default values.
267afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * These fields are set only here by core Mesa but device drivers may
268afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * overwritting these fields to indicate true texel resolution.
269afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
270fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulstatic void
271fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulset_teximage_component_sizes( struct gl_texture_image *texImage )
272afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
273afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   switch (texImage->Format) {
274afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_ALPHA:
275afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->RedBits = 0;
276afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->GreenBits = 0;
277afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->BlueBits = 0;
278afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->AlphaBits = 8;
279afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IntensityBits = 0;
280afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->LuminanceBits = 0;
281afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IndexBits = 0;
282afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
283afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE:
284afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->RedBits = 0;
285afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->GreenBits = 0;
286afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->BlueBits = 0;
287afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->AlphaBits = 0;
288afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IntensityBits = 0;
289afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->LuminanceBits = 8;
290afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IndexBits = 0;
291afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
292afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_LUMINANCE_ALPHA:
293afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->RedBits = 0;
294afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->GreenBits = 0;
295afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->BlueBits = 0;
296afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->AlphaBits = 8;
297afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IntensityBits = 0;
298afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->LuminanceBits = 8;
299afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IndexBits = 0;
300afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
301afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_INTENSITY:
302afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->RedBits = 0;
303afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->GreenBits = 0;
304afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->BlueBits = 0;
305afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->AlphaBits = 0;
306afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IntensityBits = 8;
307afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->LuminanceBits = 0;
308afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IndexBits = 0;
309afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
31091baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul      case GL_RED:
31191baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->RedBits = 8;
31291baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->GreenBits = 0;
31391baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->BlueBits = 0;
31491baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->AlphaBits = 0;
31591baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->IntensityBits = 0;
31691baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->LuminanceBits = 0;
31791baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->IndexBits = 0;
31891baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         break;
31991baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul      case GL_GREEN:
32091baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->RedBits = 0;
32191baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->GreenBits = 8;
32291baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->BlueBits = 0;
32391baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->AlphaBits = 0;
32491baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->IntensityBits = 0;
32591baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->LuminanceBits = 0;
32691baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->IndexBits = 0;
32791baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         break;
32891baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul      case GL_BLUE:
32991baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->RedBits = 0;
33091baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->GreenBits = 0;
33191baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->BlueBits = 8;
33291baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->AlphaBits = 0;
33391baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->IntensityBits = 0;
33491baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->LuminanceBits = 0;
33591baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         texImage->IndexBits = 0;
33691baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul         break;
337afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGB:
338d53573daf7bb53a41c9307339d70cfbba4f3b7a5Brian Paul      case GL_BGR:
339afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->RedBits = 8;
340afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->GreenBits = 8;
341afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->BlueBits = 8;
342afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->AlphaBits = 0;
343afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IntensityBits = 0;
344afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->LuminanceBits = 0;
345afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IndexBits = 0;
346afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
347afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_RGBA:
348d53573daf7bb53a41c9307339d70cfbba4f3b7a5Brian Paul      case GL_BGRA:
349d53573daf7bb53a41c9307339d70cfbba4f3b7a5Brian Paul      case GL_ABGR_EXT:
350afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->RedBits = 8;
351afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->GreenBits = 8;
352afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->BlueBits = 8;
353afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->AlphaBits = 8;
354afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IntensityBits = 0;
355afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->LuminanceBits = 0;
356afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IndexBits = 0;
357afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
358afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_COLOR_INDEX:
359afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->RedBits = 0;
360afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->GreenBits = 0;
361afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->BlueBits = 0;
362afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->AlphaBits = 0;
363afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IntensityBits = 0;
364afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->LuminanceBits = 0;
365afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texImage->IndexBits = 8;
366afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
367afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      default:
368afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         gl_problem(NULL, "unexpected format in set_teximage_component_sizes");
369afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
370afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
371afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
372afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
373afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/* Need this to prevent an out-of-bounds memory access when using
374afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * X86 optimized code.
375afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
376afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#ifdef USE_X86_ASM
377afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#  define EXTRA_BYTE 1
378afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#else
379afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#  define EXTRA_BYTE 0
380afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#endif
381afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
382afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
383c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
384afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
385c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * This is called by glTexImage[123]D in order to build a gl_texture_image
386c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * object given the client's parameters and image data.
387c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul *
388c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * NOTES: Width, height and depth should include the border.
389c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul *        All texture image parameters should have already been error checked.
390afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
391afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtgstatic struct gl_texture_image *
392c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paulmake_texture_image( GLcontext *ctx, GLint internalFormat,
393c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                    GLint width, GLint height, GLint depth, GLint border,
394c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                    GLenum srcFormat, GLenum srcType, const GLvoid *pixels,
395c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                    const struct gl_pixelstore_attrib *unpacking)
396afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
397c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   GLint components, numPixels;
398afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   struct gl_texture_image *texImage;
399afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
400c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   assert(width > 0);
401c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   assert(height > 0);
402c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   assert(depth > 0);
403c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   assert(border == 0 || border == 1);
404c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   assert(pixels);
405c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   assert(unpacking);
406afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
407afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
408c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /*
409c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * Allocate and initialize the texture_image struct
410c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    */
411afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage = gl_alloc_texture_image();
412afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (!texImage)
413afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return NULL;
414afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
415afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Format = (GLenum) decode_internal_format(internalFormat);
416afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   set_teximage_component_sizes( texImage );
417afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->IntFormat = (GLenum) internalFormat;
418afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Border = border;
419c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   texImage->Width = width;
420c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   texImage->Height = height;
421c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   texImage->Depth = depth;
422c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   texImage->WidthLog2 = logbase2(width - 2 * border);
423c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (height == 1)  /* 1-D texture */
424afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      texImage->HeightLog2 = 0;
425afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else
426c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      texImage->HeightLog2 = logbase2(height - 2 * border);
427c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (depth == 1)   /* 2-D texture */
428afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      texImage->DepthLog2 = 0;
429afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else
430c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      texImage->DepthLog2 = logbase2(depth - 2 * border);
431afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Width2 = 1 << texImage->WidthLog2;
432afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Height2 = 1 << texImage->HeightLog2;
433afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Depth2 = 1 << texImage->DepthLog2;
434c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   texImage->MaxLog2 = MAX2(texImage->WidthLog2, texImage->HeightLog2);
435c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
436c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   components = components_in_intformat(internalFormat);
437c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   numPixels = texImage->Width * texImage->Height * texImage->Depth;
438c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
439c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   texImage->Data = (GLubyte *) MALLOC(numPixels * components + EXTRA_BYTE);
440afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
441afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (!texImage->Data) {
442afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      /* out of memory */
443c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_free_texture_image(texImage);
444afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return NULL;
445afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
446afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
447afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
448c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /*
449c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * OK, the texture image struct has been initialized and the texture
450c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * image memory has been allocated.
451c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * Now fill in the texture image from the source data.
452c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * This includes applying the pixel transfer operations.
453c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    */
454c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
455c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /* try common 2D texture cases first */
456c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (!ctx->Pixel.ScaleOrBiasRGBA && !ctx->Pixel.MapColorFlag
457c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul       && !ctx->Pixel.IndexOffset && !ctx->Pixel.IndexShift
458c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul       && srcType == GL_UNSIGNED_BYTE && depth == 1) {
459c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
460c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (srcFormat == internalFormat) {
461c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         /* This will cover the common GL_RGB, GL_RGBA, GL_ALPHA,
462c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul          * GL_LUMINANCE_ALPHA, etc. texture formats.
463c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul          */
464959f802dabd4f4347dc0ea925ae687abb6938588Brian Paul         const GLubyte *src = (const GLubyte *) gl_pixel_addr_in_image(unpacking,
465c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                pixels, width, height, srcFormat, srcType, 0, 0, 0);
466959f802dabd4f4347dc0ea925ae687abb6938588Brian Paul         const GLubyte *src1 = (const GLubyte *) gl_pixel_addr_in_image(unpacking,
467c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                pixels, width, height, srcFormat, srcType, 0, 1, 0);
468c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         const GLint srcStride = src1 - src;
469c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         GLubyte *dst = texImage->Data;
470c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         GLint dstBytesPerRow = width * components * sizeof(GLubyte);
471c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         if (srcStride == dstBytesPerRow) {
472c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            MEMCPY(dst, src, height * dstBytesPerRow);
473afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
474c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         else {
475c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            GLint i;
476c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            for (i = 0; i < height; i++) {
477c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               MEMCPY(dst, src, dstBytesPerRow);
478c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               src += srcStride;
479c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               dst += dstBytesPerRow;
480afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            }
481c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         }
482c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return texImage;  /* all done */
483c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
484c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      else if (srcFormat == GL_RGBA && internalFormat == GL_RGB) {
485c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         /* commonly used by Quake */
486959f802dabd4f4347dc0ea925ae687abb6938588Brian Paul         const GLubyte *src = (const GLubyte *) gl_pixel_addr_in_image(unpacking,
487c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                pixels, width, height, srcFormat, srcType, 0, 0, 0);
488959f802dabd4f4347dc0ea925ae687abb6938588Brian Paul         const GLubyte *src1 = (const GLubyte *) gl_pixel_addr_in_image(unpacking,
489c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                pixels, width, height, srcFormat, srcType, 0, 1, 0);
490c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         const GLint srcStride = src1 - src;
491c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         GLubyte *dst = texImage->Data;
492c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         GLint i, j;
493c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         for (i = 0; i < height; i++) {
494c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            const GLubyte *s = src;
495c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            for (j = 0; j < width; j++) {
496c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               *dst++ = *s++;  /*red*/
497c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               *dst++ = *s++;  /*green*/
498c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               *dst++ = *s++;  /*blue*/
499c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               s++;            /*alpha*/
500afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            }
501c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            src += srcStride;
502afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
503c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return texImage;  /* all done */
504c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
505c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
506afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
507afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
508c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /*
509c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * General case solutions
510c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    */
511c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (texImage->Format == GL_COLOR_INDEX) {
512c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* color index texture */
513c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLint destBytesPerRow = width * components * sizeof(GLubyte);
514c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLenum dstType = GL_UNSIGNED_BYTE;
515c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLubyte *dest = texImage->Data;
516c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLint img, row;
517c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      for (img = 0; img < depth; img++) {
518c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         for (row = 0; row < height; row++) {
519c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            const GLvoid *source = gl_pixel_addr_in_image(unpacking,
520c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                pixels, width, height, srcFormat, srcType, img, row, 0);
521c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            _mesa_unpack_index_span(ctx, width, dstType, dest,
522c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                    srcType, source, unpacking, GL_TRUE);
523c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            dest += destBytesPerRow;
524afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
525c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
526c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
527c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else {
528c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* regular, color texture */
529c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLint destBytesPerRow = width * components * sizeof(GLubyte);
530c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLenum dstFormat = texImage->Format;
531c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLubyte *dest = texImage->Data;
532c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLint img, row;
533c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      for (img = 0; img < depth; img++) {
534c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         for (row = 0; row < height; row++) {
535c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            const GLvoid *source = gl_pixel_addr_in_image(unpacking,
536c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                   pixels, width, height, srcFormat, srcType, img, row, 0);
537c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            _mesa_unpack_ubyte_color_span(ctx, width, dstFormat, dest,
538c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                   srcFormat, srcType, source, unpacking, GL_TRUE);
539c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            dest += destBytesPerRow;
540c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         }
541c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
542afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
543afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
544c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   return texImage;   /* All done! */
545afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
546afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
547afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
548afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
549afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
550afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * glTexImage[123]D can accept a NULL image pointer.  In this case we
551afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * create a texture image with unspecified image contents per the OpenGL
552afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * spec.
553afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
554afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtgstatic struct gl_texture_image *
555afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtgmake_null_texture( GLcontext *ctx, GLenum internalFormat,
556afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                   GLsizei width, GLsizei height, GLsizei depth, GLint border )
557afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
558afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   GLint components;
559afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   struct gl_texture_image *texImage;
560afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   GLint numPixels;
561afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   (void) ctx;
562afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
563afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /*internalFormat = decode_internal_format(internalFormat);*/
564afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   components = components_in_intformat(internalFormat);
565afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   numPixels = width * height * depth;
566afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
567afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage = gl_alloc_texture_image();
568afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (!texImage)
569afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return NULL;
570afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
571afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Format = (GLenum) decode_internal_format(internalFormat);
572afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   set_teximage_component_sizes( texImage );
573afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->IntFormat = internalFormat;
574afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Border = border;
575afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Width = width;
576afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Height = height;
577afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Depth = depth;
578afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->WidthLog2 = logbase2(width - 2*border);
579afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (height==1)  /* 1-D texture */
580afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      texImage->HeightLog2 = 0;
581afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else
582afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      texImage->HeightLog2 = logbase2(height - 2*border);
583afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (depth==1)   /* 2-D texture */
584afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      texImage->DepthLog2 = 0;
585afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else
586afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      texImage->DepthLog2 = logbase2(depth - 2*border);
587afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Width2 = 1 << texImage->WidthLog2;
588afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Height2 = 1 << texImage->HeightLog2;
589afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->Depth2 = 1 << texImage->DepthLog2;
590afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texImage->MaxLog2 = MAX2( texImage->WidthLog2, texImage->HeightLog2 );
591afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
592afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /* XXX should we really allocate memory for the image or let it be NULL? */
593afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /*texImage->Data = NULL;*/
594afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
595bd5cdaf4442872d3cd2ff94eeafadd481d27fcfbBrian Paul   texImage->Data = (GLubyte *) MALLOC( numPixels * components + EXTRA_BYTE );
596afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
597afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /*
598afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg    * Let's see if anyone finds this.  If glTexImage2D() is called with
599afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg    * a NULL image pointer then load the texture image with something
600afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg    * interesting instead of leaving it indeterminate.
601afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg    */
602afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (texImage->Data) {
60365d54604c387dca986c876e811362d8e8517dcacBrian Paul      static const char message[8][32] = {
604afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         "   X   X  XXXXX   XXX     X    ",
605afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         "   XX XX  X      X   X   X X   ",
606afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         "   X X X  X      X      X   X  ",
607afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         "   X   X  XXXX    XXX   XXXXX  ",
608afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         "   X   X  X          X  X   X  ",
609afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         "   X   X  X      X   X  X   X  ",
610afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         "   X   X  XXXXX   XXX   X   X  ",
611afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         "                               "
612afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      };
613afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
614afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      GLubyte *imgPtr = texImage->Data;
615afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      GLint i, j, k;
616afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      for (i=0;i<height;i++) {
617afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         GLint srcRow = 7 - i % 8;
618afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         for (j=0;j<width;j++) {
619afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            GLint srcCol = j % 32;
6205b37c322741f019118a618bc6220f37adba4fbcdBrian Paul            GLint texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
621afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            for (k=0;k<components;k++) {
6225b37c322741f019118a618bc6220f37adba4fbcdBrian Paul               *imgPtr++ = (GLubyte) texel;
623afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            }
624afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
625afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
626afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
627afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
628afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   return texImage;
629afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
630afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
631afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
632afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
633afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
634c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Test glTexImage[123]D() parameters for errors.
635afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Input:
636afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg *         dimensions - must be 1 or 2 or 3
637afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Return:  GL_TRUE = an error was detected, GL_FALSE = no errors
638afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
639c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paulstatic GLboolean
640c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paultexture_error_check( GLcontext *ctx, GLenum target,
641c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                     GLint level, GLint internalFormat,
642c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                     GLenum format, GLenum type,
6435b37c322741f019118a618bc6220f37adba4fbcdBrian Paul                     GLuint dimensions,
644c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                     GLint width, GLint height,
645c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                     GLint depth, GLint border )
646afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
647afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   GLboolean isProxy;
648afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   GLint iformat;
649afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
650afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (dimensions == 1) {
6515b37c322741f019118a618bc6220f37adba4fbcdBrian Paul      isProxy = (GLboolean) (target == GL_PROXY_TEXTURE_1D);
652afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (target != GL_TEXTURE_1D && !isProxy) {
653afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         gl_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
654afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_TRUE;
655afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
656afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
657afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else if (dimensions == 2) {
6585b37c322741f019118a618bc6220f37adba4fbcdBrian Paul      isProxy = (GLboolean) (target == GL_PROXY_TEXTURE_2D);
659afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (target != GL_TEXTURE_2D && !isProxy) {
660afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg          gl_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
661afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg          return GL_TRUE;
662afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
663afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
664afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else if (dimensions == 3) {
6655b37c322741f019118a618bc6220f37adba4fbcdBrian Paul      isProxy = (GLboolean) (target == GL_PROXY_TEXTURE_3D);
666afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (target != GL_TEXTURE_3D && !isProxy) {
667afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         gl_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
668afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_TRUE;
669afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
670afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
671afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else {
672afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      gl_problem( ctx, "bad dims in texture_error_check" );
673afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return GL_TRUE;
674afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
675afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
676afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /* Border */
677afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (border!=0 && border!=1) {
678afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (!isProxy) {
679c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
680c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glTexImage%dD(border)", dimensions);
681c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, message);
682afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
683afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return GL_TRUE;
684afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
685afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
686afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /* Width */
687afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (width < 2 * border || width > 2 + ctx->Const.MaxTextureSize
688afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg       || logbase2( width - 2 * border ) < 0) {
689afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (!isProxy) {
690c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
691c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glTexImage%dD(width)", dimensions);
692c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, message);
693afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
694afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return GL_TRUE;
695afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
696afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
697afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /* Height */
698afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (dimensions >= 2) {
699afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (height < 2 * border || height > 2 + ctx->Const.MaxTextureSize
700afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg          || logbase2( height - 2 * border ) < 0) {
701afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         if (!isProxy) {
702c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            char message[100];
703c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            sprintf(message, "glTexImage%dD(height)", dimensions);
704c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            gl_error(ctx, GL_INVALID_VALUE, message);
705afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
706c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
707afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
708afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
709afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
710afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /* Depth */
711afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (dimensions >= 3) {
712afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (depth < 2 * border || depth > 2 + ctx->Const.MaxTextureSize
713afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg          || logbase2( depth - 2 * border ) < 0) {
714afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         if (!isProxy) {
715afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            gl_error( ctx, GL_INVALID_VALUE, "glTexImage3D(depth)" );
716afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
717afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return GL_TRUE;
718afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
719afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
720afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
721afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /* Level */
722afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (level<0 || level>=ctx->Const.MaxTextureLevels) {
723c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (!isProxy) {
724c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
725c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glTexImage%dD(level)", dimensions);
726c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, message);
727c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
728afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return GL_TRUE;
729afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
730afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
731afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   iformat = decode_internal_format( internalFormat );
732afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (iformat < 0) {
733c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (!isProxy) {
734c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
735c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glTexImage%dD(internalFormat)", dimensions);
736c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, message);
737c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
738afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return GL_TRUE;
739afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
740afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
741afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (!gl_is_legal_format_and_type( format, type )) {
742d53573daf7bb53a41c9307339d70cfbba4f3b7a5Brian Paul      /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
743d53573daf7bb53a41c9307339d70cfbba4f3b7a5Brian Paul       * is a type/format mismatch.  See 1.2 spec page 94, sec 3.6.4.
744d53573daf7bb53a41c9307339d70cfbba4f3b7a5Brian Paul       */
745c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (!isProxy) {
746c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
747c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glTexImage%dD(format or type)", dimensions);
748c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_OPERATION, message);
749c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
750afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return GL_TRUE;
751afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
752afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
753afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /* if we get here, the parameters are OK */
754afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   return GL_FALSE;
755afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
756afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
757afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
758afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
759afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
760c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Test glTexSubImage[123]D() parameters for errors.
761c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Input:
762c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul *         dimensions - must be 1 or 2 or 3
763c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Return:  GL_TRUE = an error was detected, GL_FALSE = no errors
764afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
765c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paulstatic GLboolean
766fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulsubtexture_error_check( GLcontext *ctx, GLuint dimensions,
767c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                        GLenum target, GLint level,
768c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                        GLint xoffset, GLint yoffset, GLint zoffset,
769c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                        GLint width, GLint height, GLint depth,
770c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                        GLenum format, GLenum type )
771afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
772afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
773c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   struct gl_texture_image *destTex;
774afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
775c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (dimensions == 1) {
776c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (target != GL_TEXTURE_1D) {
777c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
778c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
779afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
780c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
781c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else if (dimensions == 2) {
782c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (target != GL_TEXTURE_2D) {
783c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
784c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
785afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
786c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
787c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else if (dimensions == 3) {
788c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (target != GL_TEXTURE_3D) {
789c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
790c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
791afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
792c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
793c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else {
794c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_problem( ctx, "bad dims in texture_error_check" );
795c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
796c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
797afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
798c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (level < 0 || level >= ctx->Const.MaxTextureLevels) {
799c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level)");
800c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
801c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
802afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
803c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (width < 0) {
804c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
805c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glTexSubImage%dD(width)", dimensions);
806c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
807c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
808c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
809c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (height < 0 && dimensions > 1) {
810c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
811c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glTexSubImage%dD(height)", dimensions);
812c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
813c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
814c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
815c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (depth < 0 && dimensions > 2) {
816c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
817c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glTexSubImage%dD(depth)", dimensions);
818c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
819c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
820c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
821afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
822c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   destTex = texUnit->CurrentD[2]->Image[level];
823c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (!destTex) {
824c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_OPERATION, "glTexSubImage2D");
825c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
826c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
827afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
828c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (xoffset < -((GLint)destTex->Border)) {
829c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage1/2/3D(xoffset)");
830c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
831afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
832c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
833c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage1/2/3D(xoffset+width)");
834c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
835c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
836c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (dimensions > 1) {
837c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (yoffset < -((GLint)destTex->Border)) {
838c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage2/3D(yoffset)");
839c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
840afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
841c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
842c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage2/3D(yoffset+height)");
843c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
844afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
845afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
846c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (dimensions > 2) {
847c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (zoffset < -((GLint)destTex->Border)) {
848c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
849c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
850c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
851c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (zoffset + depth  > (GLint) (destTex->Depth+destTex->Border)) {
852c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
853c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
854c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
855afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
856afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
857c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (!gl_is_legal_format_and_type(format, type)) {
858c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
859c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glTexSubImage%dD(format or type)", dimensions);
860c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_ENUM, message);
861c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
862c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
863afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
864c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   return GL_FALSE;
865c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul}
866afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
867afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
868afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
869c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Test glCopyTexImage[12]D() parameters for errors.
870c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Input:  dimensions - must be 1 or 2 or 3
871c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Return:  GL_TRUE = an error was detected, GL_FALSE = no errors
872afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
873c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paulstatic GLboolean
874fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulcopytexture_error_check( GLcontext *ctx, GLuint dimensions,
875c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                         GLenum target, GLint level, GLint internalFormat,
876c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                         GLint width, GLint height, GLint border )
877afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
878c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   GLint iformat;
879afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
880c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (target != GL_TEXTURE_1D && target != GL_TEXTURE_2D) {
881c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1/2D(target)" );
882c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
883c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
884afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
885c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (dimensions == 1 && target != GL_TEXTURE_1D) {
886c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
887c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
888c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
889c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else if (dimensions == 2 && target != GL_TEXTURE_2D) {
890c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
891c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
892c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
893c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
894c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /* Border */
895c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (border!=0 && border!=1) {
896c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
897c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexImage%dD(border)", dimensions);
898c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
899c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
900c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
901c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
902c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /* Width */
903c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (width < 2 * border || width > 2 + ctx->Const.MaxTextureSize
904c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul       || logbase2( width - 2 * border ) < 0) {
905c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
906c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexImage%dD(width)", dimensions);
907c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
908c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
909c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
910c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
911c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /* Height */
912c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (dimensions >= 2) {
913c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (height < 2 * border || height > 2 + ctx->Const.MaxTextureSize
914c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul          || logbase2( height - 2 * border ) < 0) {
915c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
916c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glCopyTexImage%dD(height)", dimensions);
917c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, message);
918c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
919c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
920c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
921c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
922c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /* Level */
923c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (level<0 || level>=ctx->Const.MaxTextureLevels) {
924c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
925c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexImage%dD(level)", dimensions);
926c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
927c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
928c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
929c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
930c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   iformat = decode_internal_format( internalFormat );
931c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (iformat < 0) {
932c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
933c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexImage%dD(internalFormat)", dimensions);
934c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
935c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
936c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
937c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
938c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /* if we get here, the parameters are OK */
939c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   return GL_FALSE;
940c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul}
941c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
942c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
943c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paulstatic GLboolean
944fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulcopytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
945c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                             GLenum target, GLint level,
946c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                             GLint xoffset, GLint yoffset, GLint zoffset,
9475b37c322741f019118a618bc6220f37adba4fbcdBrian Paul                             GLsizei width, GLsizei height )
948c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul{
949c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
950c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   struct gl_texture_image *teximage;
951c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
952c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (dimensions == 1 && target != GL_TEXTURE_1D) {
953c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
954c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
955c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
956c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else if (dimensions == 2 && target != GL_TEXTURE_2D) {
957c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
958c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
959c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
960c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else if (dimensions == 3 && target != GL_TEXTURE_3D) {
961c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
962c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
963c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
964c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
965c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (level < 0 || level >= ctx->Const.MaxTextureLevels) {
966c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
967c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexSubImage%dD(level)", dimensions);
968c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
969c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
970c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
971c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
972c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (width < 0) {
973c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
974c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexSubImage%dD(width)", dimensions );
975c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
976c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
977c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
978c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (dimensions > 1 && height < 0) {
979c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
980c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexSubImage%dD(height)", dimensions );
981c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
982c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
983c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
984c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
985df6a28d105a31cfdc3c7d52574ef81f9d31bd3bdBrian Paul   teximage = texUnit->CurrentD[dimensions]->Image[level];
986c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (!teximage) {
987c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
988c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexSubImage%dD(undefined texture)", dimensions);
989c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_OPERATION, message);
990c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
991c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
992c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
993c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (xoffset < -((GLint)teximage->Border)) {
994c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
995c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexSubImage%dD(xoffset)", dimensions);
996c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
997c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
998c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
999c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (xoffset+width > (GLint) (teximage->Width+teximage->Border)) {
1000c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      char message[100];
1001c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      sprintf(message, "glCopyTexSubImage%dD(xoffset+width)", dimensions);
1002c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error(ctx, GL_INVALID_VALUE, message);
1003c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return GL_TRUE;
1004c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1005c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (dimensions > 1) {
1006c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (yoffset < -((GLint)teximage->Border)) {
1007c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
1008c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glCopyTexSubImage%dD(yoffset)", dimensions);
1009c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, message);
1010c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
1011c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1012c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* NOTE: we're adding the border here, not subtracting! */
1013c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (yoffset+height > (GLint) (teximage->Height+teximage->Border)) {
1014c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
1015c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glCopyTexSubImage%dD(yoffset+height)", dimensions);
1016c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, message);
1017c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
1018c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1019c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1020c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1021c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (dimensions > 2) {
1022c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (zoffset < -((GLint)teximage->Border)) {
1023c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
1024c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glCopyTexSubImage%dD(zoffset)", dimensions);
1025c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, message);
1026c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
1027c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1028c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (zoffset > (GLint) (teximage->Depth+teximage->Border)) {
1029c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         char message[100];
1030c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         sprintf(message, "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
1031c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error(ctx, GL_INVALID_VALUE, message);
1032c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return GL_TRUE;
1033c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1034c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1035c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1036c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /* if we get here, the parameters are OK */
1037c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   return GL_FALSE;
1038c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul}
1039c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1040c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1041c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1042c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1043c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul/*
1044c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Called from the API.  Note that width includes the border.
1045c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul */
1046fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1047fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_TexImage1D( GLenum target, GLint level, GLint internalformat,
1048fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                  GLsizei width, GLint border, GLenum format,
1049fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                  GLenum type, const GLvoid *pixels )
1050c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul{
1051fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1052c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage1D");
1053c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1054c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (target==GL_TEXTURE_1D) {
1055f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      struct gl_texture_unit *texUnit;
1056c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      struct gl_texture_image *teximage;
1057f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1058c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (texture_error_check( ctx, target, level, internalformat,
1059c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                               format, type, 1, width, 1, 1, border )) {
1060f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         return;   /* error in texture image was detected */
1061c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1062c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1063f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1064f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1065c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* free current texture image, if any */
1066c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (texUnit->CurrentD[1]->Image[level]) {
1067c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_free_texture_image( texUnit->CurrentD[1]->Image[level] );
1068c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1069c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1070c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* make new texture from source image */
1071c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (pixels) {
1072c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         teximage = make_texture_image(ctx, internalformat, width, 1, 1,
1073c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                              border, format, type, pixels, &ctx->Unpack);
1074c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1075c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      else {
1076c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         teximage = make_null_texture(ctx, (GLenum) internalformat,
1077c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                      width, 1, 1, border);
1078c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1079c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1080c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* install new texture image */
1081c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      texUnit->CurrentD[1]->Image[level] = teximage;
1082c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[1] );
1083c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      ctx->NewState |= NEW_TEXTURING;
1084c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1085c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* tell driver about change */
1086c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (ctx->Driver.TexImage) {
1087c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_1D,
1088c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                  texUnit->CurrentD[1],
1089c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                  level, internalformat, teximage );
1090c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1091c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1092c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else if (target==GL_PROXY_TEXTURE_1D) {
1093c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* Proxy texture: check for errors and update proxy state */
1094c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (texture_error_check( ctx, target, level, internalformat,
1095c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                               format, type, 1, width, 1, 1, border )) {
1096c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         if (level>=0 && level<ctx->Const.MaxTextureLevels) {
1097c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            MEMSET( ctx->Texture.Proxy1D->Image[level], 0,
1098c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                    sizeof(struct gl_texture_image) );
1099c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         }
1100c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1101c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      else {
1102c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         ctx->Texture.Proxy1D->Image[level]->Format = (GLenum) format;
1103c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         set_teximage_component_sizes( ctx->Texture.Proxy1D->Image[level] );
1104c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         ctx->Texture.Proxy1D->Image[level]->IntFormat = (GLenum) internalformat;
1105c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         ctx->Texture.Proxy1D->Image[level]->Border = border;
1106c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         ctx->Texture.Proxy1D->Image[level]->Width = width;
1107c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         ctx->Texture.Proxy1D->Image[level]->Height = 1;
1108c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         ctx->Texture.Proxy1D->Image[level]->Depth = 1;
1109c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1110c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1111c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else {
1112c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1113c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return;
1114c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1115c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul}
1116c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1117c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1118fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1119fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_TexImage2D( GLenum target, GLint level, GLint internalformat,
1120fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                  GLsizei width, GLsizei height, GLint border,
1121fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                  GLenum format, GLenum type,
1122fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                  const GLvoid *pixels )
1123c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul{
1124fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1125c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage2D");
1126c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1127c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (target==GL_TEXTURE_2D) {
1128f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      struct gl_texture_unit *texUnit;
1129c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      struct gl_texture_image *teximage;
1130f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1131c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (texture_error_check( ctx, target, level, internalformat,
1132c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                               format, type, 2, width, height, 1, border )) {
1133f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         return;   /* error in texture image was detected */
1134c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1135c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1136f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1137f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1138c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* free current texture image, if any */
1139c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (texUnit->CurrentD[2]->Image[level]) {
1140c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_free_texture_image( texUnit->CurrentD[2]->Image[level] );
1141c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1142c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1143c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      /* make new texture from source image */
1144c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (pixels) {
1145c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         teximage = make_texture_image(ctx, internalformat, width, height, 1,
1146c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                  border, format, type, pixels, &ctx->Unpack);
1147c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1148c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      else {
1149afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         teximage = make_null_texture(ctx, (GLenum) internalformat,
1150afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                                      width, height, 1, border);
1151afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1152afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1153afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      /* install new texture image */
1154afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      texUnit->CurrentD[2]->Image[level] = teximage;
1155afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[2] );
1156afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      ctx->NewState |= NEW_TEXTURING;
1157afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1158afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      /* tell driver about change */
1159afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (ctx->Driver.TexImage) {
1160afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_2D,
1161afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                                  texUnit->CurrentD[2],
1162afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                                  level, internalformat, teximage );
1163afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1164afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1165afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else if (target==GL_PROXY_TEXTURE_2D) {
1166afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      /* Proxy texture: check for errors and update proxy state */
1167afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (texture_error_check( ctx, target, level, internalformat,
1168afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                               format, type, 2, width, height, 1, border )) {
1169afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         if (level>=0 && level<ctx->Const.MaxTextureLevels) {
1170afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            MEMSET( ctx->Texture.Proxy2D->Image[level], 0,
1171afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                    sizeof(struct gl_texture_image) );
1172afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
1173afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1174afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      else {
1175afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy2D->Image[level]->Format = (GLenum) format;
1176afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         set_teximage_component_sizes( ctx->Texture.Proxy2D->Image[level] );
1177afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy2D->Image[level]->IntFormat = (GLenum) internalformat;
1178afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy2D->Image[level]->Border = border;
1179afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy2D->Image[level]->Width = width;
1180afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy2D->Image[level]->Height = height;
1181afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy2D->Image[level]->Depth = 1;
1182afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1183afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1184afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else {
1185afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      gl_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
1186afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return;
1187afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1188afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1189afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1190afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1191afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1192afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
1193afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Called by the API or display list executor.
1194afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Note that width and height include the border.
1195afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
1196fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1197fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_TexImage3D( GLenum target, GLint level, GLint internalformat,
1198fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                  GLsizei width, GLsizei height, GLsizei depth,
1199fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                  GLint border, GLenum format, GLenum type,
1200fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                  const GLvoid *pixels )
1201afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1202fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1203f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage3D");
1204afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1205fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   if (target==GL_TEXTURE_3D_EXT) {
1206f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      struct gl_texture_unit *texUnit;
1207afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      struct gl_texture_image *teximage;
1208afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (texture_error_check( ctx, target, level, internalformat,
1209afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                               format, type, 3, width, height, depth,
1210afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                               border )) {
1211f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         return;   /* error in texture image was detected */
1212afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1213afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1214f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1215f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1216afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      /* free current texture image, if any */
1217afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (texUnit->CurrentD[3]->Image[level]) {
1218afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         gl_free_texture_image( texUnit->CurrentD[3]->Image[level] );
1219afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1220afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1221afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      /* make new texture from source image */
1222c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (pixels) {
1223c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         teximage = make_texture_image(ctx, internalformat, width, height,
1224c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                       depth, border, format, type, pixels, &ctx->Unpack);
1225afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1226afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      else {
1227afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         teximage = make_null_texture(ctx, (GLenum) internalformat,
1228afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                                      width, height, depth, border);
1229afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1230afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1231afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      /* install new texture image */
1232afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      texUnit->CurrentD[3]->Image[level] = teximage;
1233afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[3] );
1234afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      ctx->NewState |= NEW_TEXTURING;
1235afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1236afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      /* tell driver about change */
1237afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (ctx->Driver.TexImage) {
1238afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_3D_EXT,
1239afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                                  texUnit->CurrentD[3],
1240afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                                  level, internalformat, teximage );
1241afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1242afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1243afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else if (target==GL_PROXY_TEXTURE_3D_EXT) {
1244afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      /* Proxy texture: check for errors and update proxy state */
1245afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (texture_error_check( ctx, target, level, internalformat,
1246afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                               format, type, 3, width, height, depth,
1247afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                               border )) {
1248afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         if (level>=0 && level<ctx->Const.MaxTextureLevels) {
1249afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            MEMSET( ctx->Texture.Proxy3D->Image[level], 0,
1250afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                    sizeof(struct gl_texture_image) );
1251afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
1252afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1253afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      else {
1254afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy3D->Image[level]->Format = (GLenum) format;
1255afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         set_teximage_component_sizes( ctx->Texture.Proxy3D->Image[level] );
1256afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy3D->Image[level]->IntFormat = (GLenum) internalformat;
1257afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy3D->Image[level]->Border = border;
1258afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy3D->Image[level]->Width = width;
1259afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy3D->Image[level]->Height = height;
1260afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         ctx->Texture.Proxy3D->Image[level]->Depth  = depth;
1261afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1262afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1263afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   else {
1264c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      gl_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1265afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return;
1266afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1267afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1268afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1269afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1270663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paulvoid
1271663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalformat,
1272663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul                     GLsizei width, GLsizei height, GLsizei depth,
1273663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul                     GLint border, GLenum format, GLenum type,
1274663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul                     const GLvoid *pixels )
1275663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul{
1276663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul   _mesa_TexImage3D(target, level, (GLint) internalformat, width, height,
1277663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul                    depth, border, format, type, pixels);
1278663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul}
1279663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul
1280663049a719ed76aa0a6f24f1951a411d241bc8a4Brian Paul
1281f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul/*
1282f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul * Fetch a texture image from the device driver.
1283f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul * Store the results in the given texture object at the given mipmap level.
1284f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul */
1285f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paulstatic void
1286f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paulget_teximage_from_driver( GLcontext *ctx, GLenum target, GLint level,
1287f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                          const struct gl_texture_object *texObj )
1288f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul{
1289f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   GLvoid *image;
1290f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   GLenum imgFormat, imgType;
1291f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   GLboolean freeImage;
1292f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   struct gl_texture_image *texImage;
1293f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   GLint destComponents, numPixels, srcBytesPerTexel;
1294f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1295f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (!ctx->Driver.GetTexImage)
1296f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1297f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1298f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   image = (*ctx->Driver.GetTexImage)( ctx, target, level,
1299f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                       &imgFormat, &imgType, &freeImage);
1300f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (!image)
1301f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1302f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1303f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   texImage = texObj->Image[level];
1304f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   ASSERT(texImage);
1305f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (!texImage)
1306f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1307f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1308f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   destComponents = components_in_intformat(texImage->Format);
1309f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   assert(destComponents > 0);
1310f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   numPixels = texImage->Width * texImage->Height * texImage->Depth;
1311f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   assert(numPixels > 0);
1312f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   srcBytesPerTexel = gl_bytes_per_pixel(imgFormat, imgType);
1313f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   assert(srcBytesPerTexel > 0);
1314f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1315f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (!texImage->Data) {
1316f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      /* Allocate memory for the texture image data */
1317f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      texImage->Data = (GLubyte *) MALLOC(numPixels * destComponents + EXTRA_BYTE);
1318f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   }
1319f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1320f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (imgFormat == texImage->Format && imgType == GL_UNSIGNED_BYTE) {
1321f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      /* We got lucky!  The driver's format and type match Mesa's format. */
1322f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      if (texImage->Data) {
1323f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         MEMCPY(texImage->Data, image, numPixels * destComponents);
1324f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      }
1325f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   }
1326f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   else {
1327f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      /* Convert the texture image from the driver's format to Mesa's
1328f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       * internal format.
1329f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       */
1330f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      const GLint width = texImage->Width;
1331f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      const GLint height = texImage->Height;
1332f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      const GLint depth = texImage->Depth;
1333f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      const GLint destBytesPerRow = width * destComponents * sizeof(GLchan);
1334f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      const GLint srcBytesPerRow = width * srcBytesPerTexel;
1335f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      const GLenum dstType = GL_UNSIGNED_BYTE;
1336f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      const GLenum dstFormat = texImage->Format;
1337f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      const GLubyte *srcPtr = (const GLubyte *) image;
1338f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      GLubyte *destPtr = texImage->Data;
1339f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1340f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      if (texImage->Format == GL_COLOR_INDEX) {
1341f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         /* color index texture */
1342f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         GLint img, row;
1343f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         assert(imgFormat == GL_COLOR_INDEX);
1344f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         for (img = 0; img < depth; img++) {
1345f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul            for (row = 0; row < height; row++) {
1346f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul               _mesa_unpack_index_span(ctx, width, dstType, destPtr,
1347f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                   imgType, srcPtr, &DefaultPacking, GL_FALSE);
1348f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul               destPtr += destBytesPerRow;
1349f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul               srcPtr += srcBytesPerRow;
1350f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul            }
1351f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         }
1352f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      }
1353f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      else {
1354f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         /* color texture */
1355f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         GLint img, row;
1356f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         for (img = 0; img < depth; img++) {
1357f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul            for (row = 0; row < height; row++) {
1358f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul               _mesa_unpack_ubyte_color_span(ctx, width, dstFormat, destPtr,
1359f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                        imgFormat, imgType, srcPtr, &DefaultPacking, GL_FALSE);
1360f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul               destPtr += destBytesPerRow;
1361f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul               srcPtr += srcBytesPerRow;
1362f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul            }
1363f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         }
1364f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      }
1365f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   }
1366f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1367f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (freeImage)
1368f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      FREE(image);
1369f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul}
1370f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1371afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1372fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1373fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_GetTexImage( GLenum target, GLint level, GLenum format,
1374fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                   GLenum type, GLvoid *pixels )
1375afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1376fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1377afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   const struct gl_texture_object *texObj;
1378f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   struct gl_texture_image *texImage;
1379f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   GLboolean discardImage;
1380afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1381afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexImage");
1382afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1383afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (level < 0 || level >= ctx->Const.MaxTextureLevels) {
1384afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      gl_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
1385afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return;
1386afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1387afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1388afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (gl_sizeof_type(type) <= 0) {
1389afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      gl_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
1390afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return;
1391afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1392afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1393afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (gl_components_in_format(format) <= 0) {
1394afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      gl_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
1395afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return;
1396afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1397afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1398afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   if (!pixels)
1399f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1400afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1401afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   switch (target) {
1402afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_TEXTURE_1D:
1403afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentD[1];
1404afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
1405afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_TEXTURE_2D:
1406afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentD[2];
1407afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
1408afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      case GL_TEXTURE_3D:
1409afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         texObj = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentD[3];
1410afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         break;
1411afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      default:
1412afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         gl_error( ctx, GL_INVALID_ENUM, "glGetTexImage(target)" );
1413afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         return;
1414afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1415afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1416f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   texImage = texObj->Image[level];
1417f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (!texImage) {
1418f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      /* invalid mipmap level */
1419f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1420f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   }
1421f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1422f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (!texImage->Data) {
1423f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      /* try to get the texture image from the device driver */
1424f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      get_teximage_from_driver(ctx, target, level, texObj);
1425f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      discardImage = GL_TRUE;
1426f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   }
1427f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   else {
1428f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      discardImage = GL_FALSE;
1429f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   }
1430f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1431f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (texImage->Data) {
1432afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      GLint width = texImage->Width;
1433afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      GLint height = texImage->Height;
1434afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      GLint row;
1435afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1436afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      for (row = 0; row < height; row++) {
1437afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         /* compute destination address in client memory */
1438afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         GLvoid *dest = gl_pixel_addr_in_image( &ctx->Unpack, pixels,
1439afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                                                width, height,
1440afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                                                format, type, 0, row, 0);
1441afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1442afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         assert(dest);
1443afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         if (texImage->Format == GL_RGBA) {
1444afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            const GLubyte *src = texImage->Data + row * width * 4 * sizeof(GLubyte);
1445959f802dabd4f4347dc0ea925ae687abb6938588Brian Paul            gl_pack_rgba_span( ctx, width, (CONST GLubyte (*)[4]) src,
1446959f802dabd4f4347dc0ea925ae687abb6938588Brian Paul                               format, type, dest,
1447afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                               &ctx->Pack, GL_TRUE );
1448afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
1449afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         else {
1450afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            /* fetch RGBA row from texture image then pack it in client mem */
1451afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            GLubyte rgba[MAX_WIDTH][4];
1452afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            GLint i;
1453afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            const GLubyte *src;
1454afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            switch (texImage->Format) {
1455afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg               case GL_ALPHA:
1456afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  src = texImage->Data + row * width * sizeof(GLubyte);
1457afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  for (i = 0; i < width; i++) {
1458afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][RCOMP] = 255;
1459afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][GCOMP] = 255;
1460afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][BCOMP] = 255;
1461afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][ACOMP] = src[i];
1462afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  }
1463afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  break;
1464afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg               case GL_LUMINANCE:
1465afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  src = texImage->Data + row * width * sizeof(GLubyte);
1466afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  for (i = 0; i < width; i++) {
1467afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][RCOMP] = src[i];
1468afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][GCOMP] = src[i];
1469afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][BCOMP] = src[i];
1470afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][ACOMP] = 255;
1471afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                   }
1472afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  break;
1473afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg               case GL_LUMINANCE_ALPHA:
1474afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  src = texImage->Data + row * 2 * width * sizeof(GLubyte);
1475afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  for (i = 0; i < width; i++) {
1476afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][RCOMP] = src[i*2+0];
1477afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][GCOMP] = src[i*2+0];
1478afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][BCOMP] = src[i*2+0];
1479afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][ACOMP] = src[i*2+1];
1480afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  }
1481afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  break;
1482afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg               case GL_INTENSITY:
1483afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  src = texImage->Data + row * width * sizeof(GLubyte);
1484afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  for (i = 0; i < width; i++) {
1485afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][RCOMP] = src[i];
1486afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][GCOMP] = src[i];
1487afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][BCOMP] = src[i];
1488afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][ACOMP] = 255;
1489afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  }
1490afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  break;
1491afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg               case GL_RGB:
1492afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  src = texImage->Data + row * 3 * width * sizeof(GLubyte);
1493afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  for (i = 0; i < width; i++) {
1494afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][RCOMP] = src[i*3+0];
1495afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][GCOMP] = src[i*3+1];
1496afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][BCOMP] = src[i*3+2];
1497afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                     rgba[i][ACOMP] = 255;
1498afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  }
1499afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  break;
1500afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg               case GL_RGBA:
1501afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  /* this special case should have been handled above! */
1502afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  gl_problem( ctx, "error 1 in gl_GetTexImage" );
1503afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  break;
1504afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg               case GL_COLOR_INDEX:
1505afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  gl_problem( ctx, "GL_COLOR_INDEX not implemented in gl_GetTexImage" );
1506afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  break;
1507afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg               default:
1508afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                  gl_problem( ctx, "bad format in gl_GetTexImage" );
1509afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            }
1510afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg            gl_pack_rgba_span( ctx, width, (const GLubyte (*)[4])rgba,
1511afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg                               format, type, dest, &ctx->Pack, GL_TRUE );
1512afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
1513afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1514f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1515f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      /* if we got the teximage from the device driver we'll discard it now */
1516f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      if (discardImage) {
1517f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         FREE(texImage->Data);
1518f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         texImage->Data = NULL;
1519f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      }
1520afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1521afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1522afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1523afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1524afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1525fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1526fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_TexSubImage1D( GLenum target, GLint level,
1527fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     GLint xoffset, GLsizei width,
1528fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     GLenum format, GLenum type,
1529fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     const GLvoid *pixels )
1530afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1531fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1532c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1533c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   struct gl_texture_image *destTex;
1534afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1535c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
1536c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                              width, 1, 1, format, type)) {
1537f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;   /* error was detected */
1538afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1539afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1540c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   destTex = texUnit->CurrentD[1]->Image[level];
1541c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   assert(destTex);
1542afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1543c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (width == 0 || !pixels)
1544c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return;  /* no-op, not an error */
1545afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1546afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1547c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /*
1548c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * Replace the texture subimage
1549c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    */
1550c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   {
1551c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLint texComponents = components_in_intformat(destTex->Format);
1552c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLenum texFormat = destTex->Format;
1553c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLint xoffsetb = xoffset + destTex->Border;
1554c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLubyte *dst = destTex->Data + xoffsetb * texComponents;
1555c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (texFormat == GL_COLOR_INDEX) {
1556c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         /* color index texture */
1557c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
1558c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                  width, 1, format, type, 0, 0, 0);
1559c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         _mesa_unpack_index_span(ctx, width, GL_UNSIGNED_BYTE, dst,
1560c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                    type, src, &ctx->Unpack, GL_TRUE);
1561c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1562c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      else {
1563c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         /* color texture */
1564c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
1565c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                  width, 1, format, type, 0, 0, 0);
1566c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         _mesa_unpack_ubyte_color_span(ctx, width, texFormat, dst,
1567c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                              format, type, src, &ctx->Unpack, GL_TRUE);
1568c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1569afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1570afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1571c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[1] );
1572afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1573c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /*
1574c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * Inform device driver of texture image change.
1575c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    */
1576c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (ctx->Driver.TexSubImage) {
1577c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      (*ctx->Driver.TexSubImage)(ctx, GL_TEXTURE_1D, texUnit->CurrentD[1],
1578c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 level, xoffset, 0, width, 1,
1579c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 texUnit->CurrentD[1]->Image[level]->IntFormat,
1580c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 destTex );
1581c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1582c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else {
1583c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (ctx->Driver.TexImage) {
1584c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         (*ctx->Driver.TexImage)(ctx, GL_TEXTURE_1D, texUnit->CurrentD[1],
1585c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 level,
1586c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 texUnit->CurrentD[1]->Image[level]->IntFormat,
1587c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 destTex );
1588c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
1589afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1590afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1591afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1592afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1593fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1594fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_TexSubImage2D( GLenum target, GLint level,
1595fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     GLint xoffset, GLint yoffset,
1596fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     GLsizei width, GLsizei height,
1597fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     GLenum format, GLenum type,
1598fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     const GLvoid *pixels )
1599afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1600fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1601afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1602afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   struct gl_texture_image *destTex;
1603afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1604c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
1605c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                              width, height, 1, format, type)) {
1606f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;   /* error was detected */
1607afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1608afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1609c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   destTex = texUnit->CurrentD[2]->Image[level];
1610c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   assert(destTex);
1611afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1612c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (width == 0 || height == 0 || !pixels)
1613c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return;  /* no-op, not an error */
1614afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1615afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1616c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /*
1617c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * Replace the texture subimage
1618c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    */
1619c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   {
1620c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLint texComponents = components_in_intformat(destTex->Format);
1621c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLenum texFormat = destTex->Format;
1622c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLint xoffsetb = xoffset + destTex->Border;
1623c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLint yoffsetb = yoffset + destTex->Border;
1624c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLubyte *dst = destTex->Data
1625c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                   + (yoffsetb * destTex->Width + xoffsetb) * texComponents;
1626c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (texFormat == GL_COLOR_INDEX) {
1627c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         /* color index texture */
1628c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         const GLint stride = destTex->Width * sizeof(GLubyte);
1629c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         GLint row;
1630c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         for (row = 0; row < height; row++) {
1631c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
1632c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                     width, height, format, type, 0, row, 0);
1633c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            _mesa_unpack_index_span(ctx, width, GL_UNSIGNED_BYTE, dst,
1634c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                    type, src, &ctx->Unpack, GL_TRUE);
1635c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            dst += stride;
1636c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         }
1637afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1638afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      else {
1639c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         /* color texture */
1640c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         const GLint stride = destTex->Width * texComponents * sizeof(GLubyte);
1641c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         GLint row;
1642c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         for (row = 0; row < height; row++) {
1643c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
1644c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                     width, height, format, type, 0, row, 0);
1645c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            _mesa_unpack_ubyte_color_span(ctx, width, texFormat, dst,
1646c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 format, type, src, &ctx->Unpack, GL_TRUE);
1647c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            dst += stride;
1648c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         }
1649afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1650c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1651afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1652c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[2] );
1653c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1654c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /*
1655c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * Inform device driver of texture image change.
1656c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    */
1657c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (ctx->Driver.TexSubImage) {
1658c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      (*ctx->Driver.TexSubImage)(ctx, GL_TEXTURE_2D, texUnit->CurrentD[2],
1659c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 level, xoffset, yoffset, width, height,
1660c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 texUnit->CurrentD[2]->Image[level]->IntFormat,
1661c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 destTex );
1662c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1663c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   else {
1664c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (ctx->Driver.TexImage) {
1665c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         (*ctx->Driver.TexImage)(ctx, GL_TEXTURE_2D, texUnit->CurrentD[2],
1666c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 level,
1667c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 texUnit->CurrentD[2]->Image[level]->IntFormat,
1668c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                 destTex );
1669afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1670c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1671c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul}
1672afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1673afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1674afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1675fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1676fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_TexSubImage3D( GLenum target, GLint level,
1677fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     GLint xoffset, GLint yoffset, GLint zoffset,
1678fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     GLsizei width, GLsizei height, GLsizei depth,
1679fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     GLenum format, GLenum type,
1680fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                     const GLvoid *pixels )
1681afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1682fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1683afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1684afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   struct gl_texture_image *destTex;
1685afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1686c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
1687c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                              width, height, depth, format, type)) {
1688f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;   /* error was detected */
1689afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1690afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1691afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   destTex = texUnit->CurrentD[3]->Image[level];
1692c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   assert(destTex);
1693afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1694c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (width == 0 || height == 0 || height == 0 || !pixels)
1695c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      return;  /* no-op, not an error */
1696afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1697c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /*
1698c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * Replace the texture subimage
1699c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    */
1700c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   {
1701c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLint texComponents = components_in_intformat(destTex->Format);
1702c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      const GLenum texFormat = destTex->Format;
170391baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul      const GLint xoffsetb = xoffset + destTex->Border;
170491baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul      const GLint yoffsetb = yoffset + destTex->Border;
170591baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul      const GLint zoffsetb = zoffset + destTex->Border;
1706c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLint dstRectArea = destTex->Width * destTex->Height;
1707c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLubyte *dst = destTex->Data
1708c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            + (zoffsetb * dstRectArea +  yoffsetb * destTex->Width + xoffsetb)
1709c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            * texComponents;
1710c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1711c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (texFormat == GL_COLOR_INDEX) {
1712c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         /* color index texture */
1713c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         const GLint stride = destTex->Width * sizeof(GLubyte);
1714c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         GLint img, row;
1715c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         for (img = 0; img < depth; img++) {
1716c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            for (row = 0; row < height; row++) {
1717c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
1718c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                    width, height, format, type, img, row, 0);
1719c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               _mesa_unpack_index_span(ctx, width, GL_UNSIGNED_BYTE, dst,
1720c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                       type, src, &ctx->Unpack, GL_TRUE);
1721c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               dst += stride;
1722c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            }
1723afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
1724afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1725afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      else {
1726c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         /* color texture */
1727c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         const GLint stride = destTex->Width * texComponents * sizeof(GLubyte);
1728c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         GLint img, row;
1729c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         for (img = 0; img < depth; img++) {
1730c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            for (row = 0; row < height; row++) {
1731c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
1732c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                     width, height, format, type, img, row, 0);
1733c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               _mesa_unpack_ubyte_color_span(ctx, width, texFormat, dst,
1734c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                    format, type, src, &ctx->Unpack, GL_TRUE);
1735c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul               dst += stride;
1736c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul            }
1737afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg         }
1738afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1739afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1740afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1741c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[1] );
1742c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1743c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /*
1744c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    * Inform device driver of texture image change.
1745c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul    */
1746c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   /* XXX todo */
1747afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1748afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1749afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1750afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1751afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
1752afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Read an RGBA image from the frame buffer.
1753c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * This is used by glCopyTexSubImage[12]D().
1754afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Input:  ctx - the context
1755afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg *         x, y - lower left corner
1756afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg *         width, height - size of region to read
1757c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul * Return: pointer to block of GL_RGBA, GLubyte data.
1758afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
1759c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paulstatic GLubyte *
1760c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paulread_color_image( GLcontext *ctx, GLint x, GLint y,
1761c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                  GLsizei width, GLsizei height )
1762afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1763c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   GLint stride, i;
1764c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   GLubyte *image, *dst;
1765afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1766959f802dabd4f4347dc0ea925ae687abb6938588Brian Paul   image = (GLubyte *) MALLOC(width * height * 4 * sizeof(GLubyte));
1767c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   if (!image)
1768afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      return NULL;
1769afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1770afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /* Select buffer to read from */
1771cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul   (*ctx->Driver.SetReadBuffer)( ctx, ctx->ReadBuffer,
1772cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul                                 ctx->Pixel.DriverReadBuffer );
1773afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1774c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   dst = image;
1775c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   stride = width * 4 * sizeof(GLubyte);
1776c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   for (i = 0; i < height; i++) {
17773f02f90f943a996d88abc20f74503afbb56a4c98Brian Paul      gl_read_rgba_span( ctx, ctx->ReadBuffer, width, x, y + i,
17783f02f90f943a996d88abc20f74503afbb56a4c98Brian Paul                         (GLubyte (*)[4]) dst );
1779c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      dst += stride;
1780c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1781afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1782cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul   /* Read from draw buffer (the default) */
1783cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul   (*ctx->Driver.SetReadBuffer)( ctx, ctx->DrawBuffer,
1784cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul                                 ctx->Color.DriverDrawBuffer );
1785afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1786afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   return image;
1787afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1788afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1789afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1790afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1791fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1792fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_CopyTexImage1D( GLenum target, GLint level,
1793fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                      GLenum internalFormat,
1794fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                      GLint x, GLint y,
1795fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                      GLsizei width, GLint border )
1796afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1797fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1798afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexImage1D");
1799afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1800f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (copytexture_error_check(ctx, 1, target, level, internalFormat,
1801f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                               width, 1, border))
1802f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1803f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1804f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
1805f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !ctx->Driver.CopyTexImage1D
1806f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !(*ctx->Driver.CopyTexImage1D)(ctx, target, level,
1807f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                         internalFormat, x, y, width, border))
1808f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   {
1809c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLubyte *image  = read_color_image( ctx, x, y, width, 1 );
1810c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (!image) {
1811c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D" );
1812c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return;
1813c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
18143ab6bbe6135da26dfe9a9ba880386fdc98f6580aBrian Paul      (*ctx->Exec->TexImage1D)( target, level, internalFormat, width,
1815f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                border, GL_RGBA, GL_UNSIGNED_BYTE, image );
1816c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      FREE(image);
1817afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1818afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1819afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1820afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1821afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1822fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1823fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
1824fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                      GLint x, GLint y, GLsizei width, GLsizei height,
1825fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                      GLint border )
1826afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1827fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1828afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexImage2D");
1829afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1830f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (copytexture_error_check(ctx, 2, target, level, internalFormat,
1831f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                               width, height, border))
1832f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1833f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1834f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
1835f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !ctx->Driver.CopyTexImage2D
1836f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !(*ctx->Driver.CopyTexImage2D)(ctx, target, level,
1837f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                         internalFormat, x, y, width, height, border))
1838f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   {
1839c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLubyte *image  = read_color_image( ctx, x, y, width, height );
1840c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      if (!image) {
1841c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D" );
1842c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         return;
1843c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      }
18443ab6bbe6135da26dfe9a9ba880386fdc98f6580aBrian Paul      (ctx->Exec->TexImage2D)( target, level, internalFormat, width,
1845f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                      height, border, GL_RGBA, GL_UNSIGNED_BYTE, image );
1846c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      FREE(image);
1847afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1848afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1849afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1850afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1851afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1852afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/*
1853afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Do the work of glCopyTexSubImage[123]D.
1854afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */
1855c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paulstatic void
1856c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paulcopy_tex_sub_image( GLcontext *ctx, struct gl_texture_image *dest,
1857c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                    GLint width, GLint height,
1858c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                    GLint srcx, GLint srcy,
1859c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                    GLint dstx, GLint dsty, GLint dstz )
1860afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1861c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   static struct gl_pixelstore_attrib packing = {
1862c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      1,            /* Alignment */
1863c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      0,            /* RowLength */
1864c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      0,            /* SkipPixels */
1865c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      0,            /* SkipRows */
1866c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      0,            /* ImageHeight */
1867c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      0,            /* SkipImages */
1868c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GL_FALSE,     /* SwapBytes */
1869c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GL_FALSE      /* LsbFirst */
1870c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   };
1871c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul
1872c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   GLint i;
1873afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   GLint format, components, rectarea;
187491baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul   GLint texwidth, texheight, zoffset;
1875afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
187691baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul   /* dst[xyz] may be negative if we have a texture border! */
187791baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul   dstx += dest->Border;
187891baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul   dsty += dest->Border;
187991baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul   dstz += dest->Border;
1880afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texwidth = dest->Width;
1881afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   texheight = dest->Height;
1882afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   rectarea = texwidth * texheight;
188391baaa3d5a34a0a746dcb70967364a388d5ca438Brian Paul   zoffset = dstz * rectarea;
1884afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   format = dest->Format;
1885afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   components = components_in_intformat( format );
1886afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1887afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   /* Select buffer to read from */
1888cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul   (*ctx->Driver.SetReadBuffer)( ctx, ctx->ReadBuffer,
1889cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul                                 ctx->Pixel.DriverReadBuffer );
1890afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1891c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   for (i = 0;i < height; i++) {
1892afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      GLubyte rgba[MAX_WIDTH][4];
1893c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      GLubyte *dst;
18943f02f90f943a996d88abc20f74503afbb56a4c98Brian Paul      gl_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, srcy + i, rgba );
1895c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      dst = dest->Data + ( zoffset + (dsty+i) * texwidth + dstx) * components;
1896c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      _mesa_unpack_ubyte_color_span(ctx, width, format, dst,
1897c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                    GL_RGBA, GL_UNSIGNED_BYTE, rgba,
1898c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                                    &packing, GL_TRUE);
1899c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   }
1900afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1901cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul   /* Read from draw buffer (the default) */
1902cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul   (*ctx->Driver.SetReadBuffer)( ctx, ctx->DrawBuffer,
1903cea0e8e6700e871bb9bcb334cb75fbfbfcdfd702Brian Paul                                 ctx->Color.DriverDrawBuffer );
1904afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1905afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1906afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1907afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1908afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1909fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1910fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_CopyTexSubImage1D( GLenum target, GLint level,
1911fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                         GLint xoffset, GLint x, GLint y, GLsizei width )
1912afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1913fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1914afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage1D");
1915afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1916f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (copytexsubimage_error_check(ctx, 1, target, level,
1917f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                   xoffset, 0, 0, width, 1))
1918f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1919f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1920f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
1921f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !ctx->Driver.CopyTexSubImage1D
1922f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !(*ctx->Driver.CopyTexSubImage1D)(ctx, target, level,
1923f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                            xoffset, x, y, width)) {
1924c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      struct gl_texture_unit *texUnit;
1925c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      struct gl_texture_image *teximage;
1926c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1927c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      teximage = texUnit->CurrentD[1]->Image[level];
1928c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      assert(teximage);
1929afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (teximage->Data) {
1930c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         copy_tex_sub_image(ctx, teximage, width, 1, x, y, xoffset, 0, 0);
1931f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         /* tell driver about the change */
1932f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         if (ctx->Driver.TexImage) {
1933f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul            (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_1D,
1934f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                     texUnit->CurrentD[1],
1935f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                     level, teximage->IntFormat, teximage );
1936f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         }
1937afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1938afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1939afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1940afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1941afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1942afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1943fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1944fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_CopyTexSubImage2D( GLenum target, GLint level,
1945fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                         GLint xoffset, GLint yoffset,
1946fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                         GLint x, GLint y, GLsizei width, GLsizei height )
1947afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1948fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1949afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage2D");
1950afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1951f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (copytexsubimage_error_check(ctx, 2, target, level,
1952f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                   xoffset, yoffset, 0, width, height))
1953f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1954f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1955f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
1956f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !ctx->Driver.CopyTexSubImage2D
1957f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !(*ctx->Driver.CopyTexSubImage2D)(ctx, target, level,
1958f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                xoffset, yoffset, x, y, width, height )) {
1959c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      struct gl_texture_unit *texUnit;
1960c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      struct gl_texture_image *teximage;
1961c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1962c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      teximage = texUnit->CurrentD[2]->Image[level];
1963c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul      assert(teximage);
1964afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      if (teximage->Data) {
1965c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul         copy_tex_sub_image(ctx, teximage, width, height,
1966c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                            x, y, xoffset, yoffset, 0);
1967f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         /* tell driver about the change */
1968f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         if (ctx->Driver.TexImage) {
1969f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul            (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_2D,
1970f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                     texUnit->CurrentD[2],
1971f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                     level, teximage->IntFormat, teximage );
1972afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg	 }
1973afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
1974afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
1975afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
1976afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1977afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1978afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1979fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paulvoid
1980fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_CopyTexSubImage3D( GLenum target, GLint level,
1981fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                         GLint xoffset, GLint yoffset, GLint zoffset,
1982fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul                         GLint x, GLint y, GLsizei width, GLsizei height )
1983afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{
1984fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul   GET_CURRENT_CONTEXT(ctx);
1985c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage3D");
1986afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg
1987f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul   if (copytexsubimage_error_check(ctx, 3, target, level,
1988f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                    xoffset, yoffset, zoffset, width, height))
1989f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul      return;
1990f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul
1991f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul    if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
1992f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !ctx->Driver.CopyTexSubImage3D
1993f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       || !(*ctx->Driver.CopyTexSubImage3D)(ctx, target, level,
1994f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                        xoffset, yoffset, zoffset, x, y, width, height )) {
1995f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       struct gl_texture_unit *texUnit;
1996f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       struct gl_texture_image *teximage;
1997f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1998f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       teximage = texUnit->CurrentD[3]->Image[level];
1999f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       assert(teximage);
2000f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul       if (teximage->Data) {
2001f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul          copy_tex_sub_image(ctx, teximage, width, height,
2002c3f0a511a725c7b3d3d7d93b1955aaaa2bb32f0dBrian Paul                            x, y, xoffset, yoffset, zoffset);
2003f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul          /* tell driver about the change */
2004f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul          if (ctx->Driver.TexImage) {
2005f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul             (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_3D,
2006f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                      texUnit->CurrentD[3],
2007f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul                                      level, teximage->IntFormat, teximage );
2008f7b5707d66678f09bec652ecce024a0da6cc4a4bBrian Paul         }
2009afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg      }
2010afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg   }
2011afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}
2012