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 "text.h"
31#include "api.h"
32#include "handle.h"
33
34#include "util/u_memory.h"
35
36#ifdef OPENVG_VERSION_1_1
37
38VGFont vegaCreateFont(VGint glyphCapacityHint)
39{
40   struct vg_context *ctx = vg_current_context();
41
42   if (glyphCapacityHint < 0) {
43      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
44      return VG_INVALID_HANDLE;
45   }
46
47   return font_to_handle(font_create(glyphCapacityHint));
48}
49
50void vegaDestroyFont(VGFont f)
51{
52   struct vg_font *font = handle_to_font(f);
53   struct vg_context *ctx = vg_current_context();
54
55   if (f == VG_INVALID_HANDLE) {
56      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
57      return;
58   }
59   if (!vg_object_is_valid(f, VG_OBJECT_FONT)) {
60      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
61      return;
62   }
63
64   font_destroy(font);
65}
66
67void vegaSetGlyphToPath(VGFont font,
68                        VGuint glyphIndex,
69                        VGPath path,
70                        VGboolean isHinted,
71                        const VGfloat glyphOrigin[2],
72                        const VGfloat escapement[2])
73{
74   struct vg_context *ctx = vg_current_context();
75   struct path *pathObj;
76   struct vg_font *f;
77
78   if (font == VG_INVALID_HANDLE ||
79       !vg_context_is_object_valid(ctx, VG_OBJECT_FONT, font)) {
80      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
81      return;
82   }
83   if (!glyphOrigin || !escapement ||
84       !is_aligned(glyphOrigin) || !is_aligned(escapement)) {
85      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
86      return;
87   }
88   if (path != VG_INVALID_HANDLE &&
89       !vg_context_is_object_valid(ctx, VG_OBJECT_PATH, path)) {
90      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
91      return;
92   }
93
94   pathObj = handle_to_path(path);
95   f = handle_to_font(font);
96
97   font_set_glyph_to_path(f, glyphIndex, pathObj,
98         isHinted, glyphOrigin, escapement);
99}
100
101void vegaSetGlyphToImage(VGFont font,
102                         VGuint glyphIndex,
103                         VGImage image,
104                         const VGfloat glyphOrigin[2],
105                         const VGfloat escapement[2])
106{
107   struct vg_context *ctx = vg_current_context();
108   struct vg_image *img_obj;
109   struct vg_font *f;
110
111   if (font == VG_INVALID_HANDLE ||
112       !vg_context_is_object_valid(ctx, VG_OBJECT_FONT, font)) {
113      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
114      return;
115   }
116   if (!glyphOrigin || !escapement ||
117       !is_aligned(glyphOrigin) || !is_aligned(escapement)) {
118      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
119      return;
120   }
121   if (image != VG_INVALID_HANDLE &&
122       !vg_context_is_object_valid(ctx, VG_OBJECT_IMAGE, image)) {
123      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
124      return;
125   }
126
127   img_obj = handle_to_image(image);
128   f = handle_to_font(font);
129
130   font_set_glyph_to_image(f, glyphIndex, img_obj, glyphOrigin, escapement);
131}
132
133void vegaClearGlyph(VGFont font,
134                    VGuint glyphIndex)
135{
136   struct vg_context *ctx = vg_current_context();
137   struct vg_font *f;
138
139   if (font == VG_INVALID_HANDLE) {
140      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
141      return;
142   }
143
144   f = handle_to_font(font);
145
146   font_clear_glyph(f, glyphIndex);
147}
148
149void vegaDrawGlyph(VGFont font,
150                   VGuint glyphIndex,
151                   VGbitfield paintModes,
152                   VGboolean allowAutoHinting)
153{
154   struct vg_context *ctx = vg_current_context();
155   struct vg_font *f;
156
157   if (font == VG_INVALID_HANDLE) {
158      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
159      return;
160   }
161   if (paintModes & (~(VG_STROKE_PATH|VG_FILL_PATH))) {
162      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
163      return;
164   }
165   f = handle_to_font(font);
166
167   font_draw_glyph(f, glyphIndex, paintModes, allowAutoHinting);
168}
169
170void vegaDrawGlyphs(VGFont font,
171                    VGint glyphCount,
172                    const VGuint *glyphIndices,
173                    const VGfloat *adjustments_x,
174                    const VGfloat *adjustments_y,
175                    VGbitfield paintModes,
176                    VGboolean allowAutoHinting)
177{
178   struct vg_context *ctx = vg_current_context();
179   struct vg_font *f;
180
181   if (font == VG_INVALID_HANDLE) {
182      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
183      return;
184   }
185   if (glyphCount <= 0) {
186      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
187      return;
188   }
189   if (!glyphIndices || !is_aligned(glyphIndices)) {
190      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
191      return;
192   }
193   if ((adjustments_x && !is_aligned(adjustments_x)) ||
194       (adjustments_y && !is_aligned(adjustments_y))) {
195      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
196      return;
197   }
198   if (paintModes & (~(VG_STROKE_PATH|VG_FILL_PATH))) {
199      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
200      return;
201   }
202
203   f = handle_to_font(font);
204
205   font_draw_glyphs(f, glyphCount, glyphIndices,
206         adjustments_x, adjustments_y, paintModes, allowAutoHinting);
207}
208
209#endif /* OPENVG_VERSION_1_1 */
210