summaryrefslogtreecommitdiff
path: root/src/gallium/state_trackers/vega/api_text.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/state_trackers/vega/api_text.c')
-rw-r--r--src/gallium/state_trackers/vega/api_text.c258
1 files changed, 258 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/vega/api_text.c b/src/gallium/state_trackers/vega/api_text.c
new file mode 100644
index 0000000000..d8411cf3e8
--- /dev/null
+++ b/src/gallium/state_trackers/vega/api_text.c
@@ -0,0 +1,258 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "VG/openvg.h"
+
+#include "vg_context.h"
+
+#include "util/u_memory.h"
+
+#ifdef OPENVG_VERSION_1_1
+
+struct vg_font {
+ struct vg_object base;
+
+ VGint glyph_indices[200];
+ VGint num_glyphs;
+};
+
+VGFont vgCreateFont(VGint glyphCapacityHint)
+{
+ struct vg_font *font = 0;
+ struct vg_context *ctx = vg_current_context();
+
+ if (glyphCapacityHint < 0) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return VG_INVALID_HANDLE;
+ }
+
+ font = CALLOC_STRUCT(vg_font);
+ vg_init_object(&font->base, ctx, VG_OBJECT_FONT);
+ vg_context_add_object(ctx, VG_OBJECT_FONT, font);
+ return (VGFont)font;
+}
+
+void vgDestroyFont(VGFont f)
+{
+ struct vg_font *font = (struct vg_font *)f;
+ struct vg_context *ctx = vg_current_context();
+
+ if (f == VG_INVALID_HANDLE) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+
+ vg_context_remove_object(ctx, VG_OBJECT_FONT, font);
+ /*free(font);*/
+}
+
+void vgSetGlyphToPath(VGFont font,
+ VGuint glyphIndex,
+ VGPath path,
+ VGboolean isHinted,
+ VGfloat glyphOrigin [2],
+ VGfloat escapement[2])
+{
+ struct vg_context *ctx = vg_current_context();
+ struct vg_object *pathObj;
+ struct vg_font *f;
+
+ if (font == VG_INVALID_HANDLE ||
+ !vg_context_is_object_valid(ctx, VG_OBJECT_FONT, (void *)font)) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+ if (!glyphOrigin || !escapement ||
+ !is_aligned(glyphOrigin) || !is_aligned(escapement)) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+ if (path != VG_INVALID_HANDLE &&
+ !vg_context_is_object_valid(ctx, VG_OBJECT_PATH, (void *)path)) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+ pathObj = (struct vg_object*)path;
+ if (pathObj && pathObj->type != VG_OBJECT_PATH) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+
+ f = (struct vg_font*)font;
+ f->glyph_indices[f->num_glyphs] = glyphIndex;
+ ++f->num_glyphs;
+}
+
+void vgSetGlyphToImage(VGFont font,
+ VGuint glyphIndex,
+ VGImage image,
+ VGfloat glyphOrigin [2],
+ VGfloat escapement[2])
+{
+ struct vg_context *ctx = vg_current_context();
+ struct vg_object *img_obj;
+ struct vg_font *f;
+
+ if (font == VG_INVALID_HANDLE ||
+ !vg_context_is_object_valid(ctx, VG_OBJECT_FONT, (void *)font)) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+ if (!glyphOrigin || !escapement ||
+ !is_aligned(glyphOrigin) || !is_aligned(escapement)) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+ if (image != VG_INVALID_HANDLE &&
+ !vg_context_is_object_valid(ctx, VG_OBJECT_IMAGE, (void *)image)) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+ img_obj = (struct vg_object*)image;
+ if (img_obj && img_obj->type != VG_OBJECT_IMAGE) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+ f = (struct vg_font*)font;
+ f->glyph_indices[f->num_glyphs] = glyphIndex;
+ ++f->num_glyphs;
+}
+
+static INLINE VGboolean font_contains_glyph(struct vg_font *font,
+ VGuint glyph_index)
+{
+ VGint i;
+ for (i = 0; i < font->num_glyphs; ++i) {
+ if (font->glyph_indices[i] == glyph_index) {
+ return VG_TRUE;
+ }
+ }
+ return VG_FALSE;
+}
+
+void vgClearGlyph(VGFont font,
+ VGuint glyphIndex)
+{
+ struct vg_context *ctx = vg_current_context();
+ struct vg_font *f;
+ VGint i;
+
+ if (font == VG_INVALID_HANDLE) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+ if (glyphIndex <= 0) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+ f = (struct vg_font*)font;
+ if (!font_contains_glyph(f, glyphIndex)) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+
+ for (i = 0; i < f->num_glyphs; ++i) {
+ if (f->glyph_indices[i] == glyphIndex) {
+ /*FIXME*/
+ f->glyph_indices[f->num_glyphs] = 0;
+ --f->num_glyphs;
+ return;
+ }
+ }
+}
+
+void vgDrawGlyph(VGFont font,
+ VGuint glyphIndex,
+ VGbitfield paintModes,
+ VGboolean allowAutoHinting)
+{
+ struct vg_context *ctx = vg_current_context();
+ struct vg_font *f;
+
+ if (font == VG_INVALID_HANDLE) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+ if (glyphIndex <= 0) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+ if (paintModes & (~(VG_STROKE_PATH|VG_FILL_PATH))) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+ f = (struct vg_font*)font;
+ if (!font_contains_glyph(f, glyphIndex)) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+}
+
+void vgDrawGlyphs(VGFont font,
+ VGint glyphCount,
+ VGuint *glyphIndices,
+ VGfloat *adjustments_x,
+ VGfloat *adjustments_y,
+ VGbitfield paintModes,
+ VGboolean allowAutoHinting)
+{
+ struct vg_context *ctx = vg_current_context();
+ VGint i;
+ struct vg_font *f;
+
+ if (font == VG_INVALID_HANDLE) {
+ vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
+ return;
+ }
+ if (glyphCount <= 0) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+ if (!glyphIndices || !is_aligned(glyphIndices)) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+ if (!adjustments_x || !is_aligned(adjustments_x) ||
+ !adjustments_y || !is_aligned(adjustments_y)) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+ if (paintModes & (~(VG_STROKE_PATH|VG_FILL_PATH))) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+
+ f = (struct vg_font*)font;
+ for (i = 0; i < glyphCount; ++i) {
+ VGuint glyph_index = glyphIndices[i];
+ if (!font_contains_glyph(f, glyph_index)) {
+ vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+ return;
+ }
+ }
+}
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-29 08:21:31 +0000