1/*
2 * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24#include "main/drawtex.h"
25#include "main/state.h"
26#include "main/imports.h"
27#include "main/mfeatures.h"
28#include "main/mtypes.h"
29
30
31#if FEATURE_OES_draw_texture
32
33
34static void
35draw_texture(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
36             GLfloat width, GLfloat height)
37{
38   if (!ctx->Extensions.OES_draw_texture) {
39      _mesa_error(ctx, GL_INVALID_OPERATION,
40                  "glDrawTex(unsupported)");
41      return;
42   }
43   if (width <= 0.0f || height <= 0.0f) {
44      _mesa_error(ctx, GL_INVALID_VALUE, "glDrawTex(width or height <= 0)");
45      return;
46   }
47
48   _mesa_set_vp_override(ctx, GL_TRUE);
49
50   if (ctx->NewState)
51      _mesa_update_state(ctx);
52
53   ASSERT(ctx->Driver.DrawTex);
54   ctx->Driver.DrawTex(ctx, x, y, z, width, height);
55
56   _mesa_set_vp_override(ctx, GL_FALSE);
57}
58
59
60void GLAPIENTRY
61_mesa_DrawTexf(GLfloat x, GLfloat y, GLfloat z, GLfloat width, GLfloat height)
62{
63   GET_CURRENT_CONTEXT(ctx);
64   draw_texture(ctx, x, y, z, width, height);
65}
66
67
68void GLAPIENTRY
69_mesa_DrawTexfv(const GLfloat *coords)
70{
71   GET_CURRENT_CONTEXT(ctx);
72   draw_texture(ctx, coords[0], coords[1], coords[2], coords[3], coords[4]);
73}
74
75
76void GLAPIENTRY
77_mesa_DrawTexi(GLint x, GLint y, GLint z, GLint width, GLint height)
78{
79   GET_CURRENT_CONTEXT(ctx);
80   draw_texture(ctx, (GLfloat) x, (GLfloat) y, (GLfloat) z,
81                (GLfloat) width, (GLfloat) height);
82}
83
84
85void GLAPIENTRY
86_mesa_DrawTexiv(const GLint *coords)
87{
88   GET_CURRENT_CONTEXT(ctx);
89   draw_texture(ctx, (GLfloat) coords[0], (GLfloat) coords[1],
90                (GLfloat) coords[2], (GLfloat) coords[3], (GLfloat) coords[4]);
91}
92
93
94void GLAPIENTRY
95_mesa_DrawTexs(GLshort x, GLshort y, GLshort z, GLshort width, GLshort height)
96{
97   GET_CURRENT_CONTEXT(ctx);
98   draw_texture(ctx, (GLfloat) x, (GLfloat) y, (GLfloat) z,
99                (GLfloat) width, (GLfloat) height);
100}
101
102
103void GLAPIENTRY
104_mesa_DrawTexsv(const GLshort *coords)
105{
106   GET_CURRENT_CONTEXT(ctx);
107   draw_texture(ctx, (GLfloat) coords[0], (GLfloat) coords[1],
108                (GLfloat) coords[2], (GLfloat) coords[3], (GLfloat) coords[4]);
109}
110
111
112void GLAPIENTRY
113_mesa_DrawTexx(GLfixed x, GLfixed y, GLfixed z, GLfixed width, GLfixed height)
114{
115   GET_CURRENT_CONTEXT(ctx);
116   draw_texture(ctx,
117                (GLfloat) x / 65536.0f,
118                (GLfloat) y / 65536.0f,
119                (GLfloat) z / 65536.0f,
120                (GLfloat) width / 65536.0f,
121                (GLfloat) height / 65536.0f);
122}
123
124
125void GLAPIENTRY
126_mesa_DrawTexxv(const GLfixed *coords)
127{
128   GET_CURRENT_CONTEXT(ctx);
129   draw_texture(ctx,
130                (GLfloat) coords[0] / 65536.0f,
131                (GLfloat) coords[1] / 65536.0f,
132                (GLfloat) coords[2] / 65536.0f,
133                (GLfloat) coords[3] / 65536.0f,
134                (GLfloat) coords[4] / 65536.0f);
135}
136
137#endif /* FEATURE_OES_draw_texture */
138