api_paint.c revision d41e694cf78ada8c9258f96995115c9da8437894 
1/**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.  All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 **************************************************************************/
26
27#include "VG/openvg.h"
28
29#include "vg_context.h"
30#include "paint.h"
31#include "api.h"
32#include "handle.h"
33
34
35VGPaint vegaCreatePaint(void)
36{
37   return paint_to_handle(paint_create(vg_current_context()));
38}
39
40void vegaDestroyPaint(VGPaint p)
41{
42   struct vg_context *ctx = vg_current_context();
43
44   if (p == VG_INVALID_HANDLE) {
45      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
46      return;
47   }
48
49   paint_destroy(handle_to_paint(p));
50}
51
52void vegaSetPaint(VGPaint paint, VGbitfield paintModes)
53{
54   struct vg_context *ctx = vg_current_context();
55
56   if (paint == VG_INVALID_HANDLE) {
57      /* restore the default */
58      paint = paint_to_handle(ctx->default_paint);
59   } else if (!vg_object_is_valid(paint, VG_OBJECT_PAINT)) {
60      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
61      return;
62   }
63
64   if (!(paintModes & ((VG_FILL_PATH|VG_STROKE_PATH)))) {
65      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
66      return;
67   }
68
69   if (paintModes & VG_FILL_PATH) {
70      ctx->state.vg.fill_paint = handle_to_paint(paint);
71   }
72   if (paintModes & VG_STROKE_PATH) {
73      ctx->state.vg.stroke_paint = handle_to_paint(paint);
74   }
75}
76
77VGPaint vegaGetPaint(VGPaintMode paintMode)
78{
79   struct vg_context *ctx = vg_current_context();
80   VGPaint paint = VG_INVALID_HANDLE;
81
82   if (paintMode < VG_STROKE_PATH || paintMode > VG_FILL_PATH) {
83      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
84      return VG_INVALID_HANDLE;
85   }
86
87   if (paintMode == VG_FILL_PATH)
88      paint = paint_to_handle(ctx->state.vg.fill_paint);
89   else if (paintMode == VG_STROKE_PATH)
90      paint = paint_to_handle(ctx->state.vg.stroke_paint);
91
92   if (paint == paint_to_handle(ctx->default_paint))
93      paint = VG_INVALID_HANDLE;
94
95   return paint;
96}
97
98void vegaSetColor(VGPaint paint, VGuint rgba)
99{
100   struct vg_context *ctx = vg_current_context();
101
102   if (paint == VG_INVALID_HANDLE) {
103      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
104      return;
105   }
106
107   if (!vg_object_is_valid(paint, VG_OBJECT_PAINT)) {
108      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
109      return;
110   }
111
112   paint_set_colori(handle_to_paint(paint), rgba);
113}
114
115VGuint vegaGetColor(VGPaint paint)
116{
117   struct vg_context *ctx = vg_current_context();
118   struct vg_paint *p;
119   VGuint rgba = 0;
120
121   if (paint == VG_INVALID_HANDLE) {
122      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
123      return rgba;
124   }
125
126   if (!vg_object_is_valid(paint, VG_OBJECT_PAINT)) {
127      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
128      return rgba;
129   }
130   p = handle_to_paint(paint);
131
132   return paint_colori(p);
133}
134
135void vegaPaintPattern(VGPaint paint, VGImage pattern)
136{
137   struct vg_context *ctx = vg_current_context();
138
139   if (paint == VG_INVALID_HANDLE ||
140       !vg_context_is_object_valid(ctx, VG_OBJECT_PAINT, paint)) {
141      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
142      return;
143   }
144
145   if (pattern == VG_INVALID_HANDLE) {
146      paint_set_type(handle_to_paint(paint), VG_PAINT_TYPE_COLOR);
147      return;
148   }
149
150   if (!vg_context_is_object_valid(ctx, VG_OBJECT_IMAGE, pattern)) {
151      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
152      return;
153   }
154
155
156   if (!vg_object_is_valid(paint, VG_OBJECT_PAINT) ||
157       !vg_object_is_valid(pattern, VG_OBJECT_IMAGE)) {
158      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
159      return;
160   }
161   paint_set_pattern(handle_to_paint(paint),
162                     handle_to_image(pattern));
163}
164
165