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/**************************************************************************
*
* 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 vegaCreateFont(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 vegaDestroyFont(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 vegaSetGlyphToPath(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 vegaSetGlyphToImage(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 vegaClearGlyph(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 vegaDrawGlyph(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 vegaDrawGlyphs(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
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