diff options
Diffstat (limited to 'src/gallium/state_trackers/vega/api_text.c')
-rw-r--r-- | src/gallium/state_trackers/vega/api_text.c | 258 |
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 |