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-rw-r--r--src/gallium/state_trackers/vega/paint.c699
1 files changed, 699 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/vega/paint.c b/src/gallium/state_trackers/vega/paint.c
new file mode 100644
index 0000000000..04a6ba9cdc
--- /dev/null
+++ b/src/gallium/state_trackers/vega/paint.c
@@ -0,0 +1,699 @@
+/**************************************************************************
+ *
+ * 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 "paint.h"
+
+#include "shaders_cache.h"
+#include "matrix.h"
+#include "image.h"
+#include "st_inlines.h"
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_inlines.h"
+
+#include "util/u_memory.h"
+#include "util/u_math.h"
+
+#include "cso_cache/cso_context.h"
+
+struct vg_paint {
+ struct vg_object base;
+
+ VGPaintType type;
+
+ struct {
+ VGfloat color[4];
+ VGint colori[4];
+ } solid;
+
+ struct {
+ VGColorRampSpreadMode spread;
+ VGuint color_data[1024];
+ struct {
+ VGfloat coords[4];
+ VGint coordsi[4];
+ } linear;
+ struct {
+ VGfloat vals[5];
+ VGint valsi[5];
+ } radial;
+ struct pipe_texture *texture;
+ struct pipe_sampler_state sampler;
+
+ VGfloat *ramp_stops;
+ VGint *ramp_stopsi;
+ VGint num_stops;
+
+ VGboolean color_ramps_premultiplied;
+ } gradient;
+
+ struct {
+ struct pipe_texture *texture;
+ VGTilingMode tiling_mode;
+ struct pipe_sampler_state sampler;
+ } pattern;
+
+ struct pipe_constant_buffer cbuf;
+ struct pipe_shader_state fs_state;
+ void *fs;
+};
+
+static INLINE VGuint mix_pixels(VGuint p1, VGuint a, VGuint p2, VGuint b)
+{
+ VGuint t = (p1 & 0xff00ff) * a + (p2 & 0xff00ff) * b;
+ t >>= 8; t &= 0xff00ff;
+
+ p1 = ((p1 >> 8) & 0xff00ff) * a + ((p2 >> 8) & 0xff00ff) * b;
+ p1 &= 0xff00ff00; p1 |= t;
+
+ return p1;
+}
+
+static INLINE VGuint float4_to_argb(const VGfloat *clr)
+{
+ return float_to_ubyte(clr[3]) << 24 |
+ float_to_ubyte(clr[0]) << 16 |
+ float_to_ubyte(clr[1]) << 8 |
+ float_to_ubyte(clr[2]) << 0;
+}
+
+static INLINE void create_gradient_data(const VGfloat *ramp_stops,
+ VGint num,
+ VGuint *data,
+ VGint size)
+{
+ VGint i;
+ VGint pos = 0;
+ VGfloat fpos = 0, incr = 1.f / size;
+ VGuint last_color;
+
+ while (fpos < ramp_stops[0]) {
+ data[pos] = float4_to_argb(ramp_stops + 1);
+ fpos += incr;
+ ++pos;
+ }
+
+ for (i = 0; i < num - 1; ++i) {
+ VGint rcur = 5 * i;
+ VGint rnext = 5 * (i + 1);
+ VGfloat delta = 1.f/(ramp_stops[rnext] - ramp_stops[rcur]);
+ while (fpos < ramp_stops[rnext] && pos < size) {
+ VGint dist = 256 * ((fpos - ramp_stops[rcur]) * delta);
+ VGint idist = 256 - dist;
+ VGuint current_color = float4_to_argb(ramp_stops + rcur + 1);
+ VGuint next_color = float4_to_argb(ramp_stops + rnext + 1);
+ data[pos] = mix_pixels(current_color, idist,
+ next_color, dist);
+ fpos += incr;
+ ++pos;
+ }
+ }
+
+ last_color = float4_to_argb(ramp_stops + ((num - 1) * 5 + 1));
+ while (pos < size) {
+ data[pos] = last_color;
+ ++pos;
+ }
+ data[size-1] = last_color;
+}
+
+static INLINE struct pipe_texture *create_gradient_texture(struct vg_paint *p)
+{
+ struct pipe_context *pipe = p->base.ctx->pipe;
+ struct pipe_screen *screen = pipe->screen;
+ struct pipe_texture *tex = 0;
+ struct pipe_texture templ;
+
+ memset(&templ, 0, sizeof(templ));
+ templ.target = PIPE_TEXTURE_1D;
+ templ.format = PIPE_FORMAT_A8R8G8B8_UNORM;
+ templ.last_level = 0;
+ templ.width[0] = 1024;
+ templ.height[0] = 1;
+ templ.depth[0] = 1;
+ pf_get_block(PIPE_FORMAT_A8R8G8B8_UNORM, &templ.block);
+ templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER;
+
+ tex = screen->texture_create(screen, &templ);
+
+ { /* upload color_data */
+ struct pipe_transfer *transfer =
+ st_no_flush_get_tex_transfer(p->base.ctx, tex, 0, 0, 0,
+ PIPE_TRANSFER_WRITE, 0, 0, 1024, 1);
+ void *map = screen->transfer_map(screen, transfer);
+ memcpy(map, p->gradient.color_data, sizeof(VGint)*1024);
+ screen->transfer_unmap(screen, transfer);
+ screen->tex_transfer_destroy(transfer);
+ }
+
+ return tex;
+}
+
+struct vg_paint * paint_create(struct vg_context *ctx)
+{
+ struct vg_paint *paint = CALLOC_STRUCT(vg_paint);
+ const VGfloat default_color[] = {0.0f, 0.0f, 0.0f, 1.0f};
+ const VGfloat def_ling[] = {0.0f, 0.0f, 1.0f, 0.0f};
+ const VGfloat def_radg[] = {0.0f, 0.0f, 0.0f, 0.0f, 1.0f};
+ vg_init_object(&paint->base, ctx, VG_OBJECT_PAINT);
+ vg_context_add_object(ctx, VG_OBJECT_PAINT, paint);
+
+ paint->type = VG_PAINT_TYPE_COLOR;
+ memcpy(paint->solid.color, default_color,
+ 4 * sizeof(VGfloat));
+ paint->gradient.spread = VG_COLOR_RAMP_SPREAD_PAD;
+ memcpy(paint->gradient.linear.coords, def_ling,
+ 4 * sizeof(VGfloat));
+ memcpy(paint->gradient.radial.vals, def_radg,
+ 5 * sizeof(VGfloat));
+
+ paint->gradient.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ paint->gradient.sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ paint->gradient.sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
+ paint->gradient.sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
+ paint->gradient.sampler.normalized_coords = 1;
+
+ memcpy(&paint->pattern.sampler,
+ &paint->gradient.sampler,
+ sizeof(struct pipe_sampler_state));
+
+ return paint;
+}
+
+void paint_destroy(struct vg_paint *paint)
+{
+ struct vg_context *ctx = paint->base.ctx;
+ if (paint->pattern.texture)
+ pipe_texture_reference(&paint->pattern.texture, NULL);
+ if (ctx)
+ vg_context_remove_object(ctx, VG_OBJECT_PAINT, paint);
+
+ free(paint->gradient.ramp_stopsi);
+ free(paint->gradient.ramp_stops);
+ free(paint);
+}
+
+void paint_set_color(struct vg_paint *paint,
+ const VGfloat *color)
+{
+ paint->solid.color[0] = color[0];
+ paint->solid.color[1] = color[1];
+ paint->solid.color[2] = color[2];
+ paint->solid.color[3] = color[3];
+
+ paint->solid.colori[0] = FLT_TO_INT(color[0]);
+ paint->solid.colori[1] = FLT_TO_INT(color[1]);
+ paint->solid.colori[2] = FLT_TO_INT(color[2]);
+ paint->solid.colori[3] = FLT_TO_INT(color[3]);
+}
+
+static INLINE void paint_color_buffer(struct vg_paint *paint, void *buffer)
+{
+ VGfloat *map = (VGfloat*)buffer;
+ memcpy(buffer, paint->solid.color, 4 * sizeof(VGfloat));
+ map[4] = 0.f;
+ map[5] = 1.f;
+ map[6] = 2.f;
+ map[7] = 4.f;
+}
+
+static INLINE void paint_linear_gradient_buffer(struct vg_paint *paint, void *buffer)
+{
+ struct vg_context *ctx = paint->base.ctx;
+ VGfloat *map = (VGfloat*)buffer;
+
+ map[0] = paint->gradient.linear.coords[2] - paint->gradient.linear.coords[0];
+ map[1] = paint->gradient.linear.coords[3] - paint->gradient.linear.coords[1];
+ map[2] = 1.f / (map[0] * map[0] + map[1] * map[1]);
+ map[3] = 1.f;
+
+ map[4] = 0.f;
+ map[5] = 1.f;
+ map[6] = 2.f;
+ map[7] = 4.f;
+ {
+ struct matrix mat;
+ struct matrix inv;
+ matrix_load_identity(&mat);
+ matrix_translate(&mat, -paint->gradient.linear.coords[0], -paint->gradient.linear.coords[1]);
+ memcpy(&inv, &ctx->state.vg.fill_paint_to_user_matrix,
+ sizeof(struct matrix));
+ matrix_invert(&inv);
+ matrix_mult(&inv, &mat);
+ memcpy(&mat, &inv,
+ sizeof(struct matrix));
+
+ map[8] = mat.m[0]; map[9] = mat.m[3]; map[10] = mat.m[6]; map[11] = 0.f;
+ map[12] = mat.m[1]; map[13] = mat.m[4]; map[14] = mat.m[7]; map[15] = 0.f;
+ map[16] = mat.m[2]; map[17] = mat.m[5]; map[18] = mat.m[8]; map[19] = 0.f;
+ }
+#if 0
+ debug_printf("Coords (%f, %f, %f, %f)\n",
+ map[0], map[1], map[2], map[3]);
+#endif
+}
+
+
+static INLINE void paint_radial_gradient_buffer(struct vg_paint *paint, void *buffer)
+{
+ VGfloat *radialCoords = paint->gradient.radial.vals;
+ struct vg_context *ctx = paint->base.ctx;
+
+ VGfloat *map = (VGfloat*)buffer;
+
+ map[0] = radialCoords[0] - radialCoords[2];
+ map[1] = radialCoords[1] - radialCoords[3];
+ map[2] = -map[0] * map[0] - map[1] * map[1] +
+ radialCoords[4] * radialCoords[4];
+ map[3] = 1.f;
+
+ map[4] = 0.f;
+ map[5] = 1.f;
+ map[6] = 2.f;
+ map[7] = 4.f;
+
+ {
+ struct matrix mat;
+ struct matrix inv;
+ matrix_load_identity(&mat);
+ matrix_translate(&mat, -radialCoords[2], -radialCoords[3]);
+ memcpy(&inv, &ctx->state.vg.fill_paint_to_user_matrix,
+ sizeof(struct matrix));
+ matrix_invert(&inv);
+ matrix_mult(&inv, &mat);
+ memcpy(&mat, &inv,
+ sizeof(struct matrix));
+
+ map[8] = mat.m[0]; map[9] = mat.m[3]; map[10] = mat.m[6]; map[11] = 0.f;
+ map[12] = mat.m[1]; map[13] = mat.m[4]; map[14] = mat.m[7]; map[15] = 0.f;
+ map[16] = mat.m[2]; map[17] = mat.m[5]; map[18] = mat.m[8]; map[19] = 0.f;
+ }
+
+#if 0
+ debug_printf("Coords (%f, %f, %f, %f)\n",
+ map[0], map[1], map[2], map[3]);
+#endif
+}
+
+
+static INLINE void paint_pattern_buffer(struct vg_paint *paint, void *buffer)
+{
+ struct vg_context *ctx = paint->base.ctx;
+
+ VGfloat *map = (VGfloat *)buffer;
+ memcpy(map, paint->solid.color, 4 * sizeof(VGfloat));
+
+ map[4] = 0.f;
+ map[5] = 1.f;
+ map[6] = paint->pattern.texture->width[0];
+ map[7] = paint->pattern.texture->height[0];
+ {
+ struct matrix mat;
+ memcpy(&mat, &ctx->state.vg.fill_paint_to_user_matrix,
+ sizeof(struct matrix));
+ matrix_invert(&mat);
+ {
+ struct matrix pm;
+ memcpy(&pm, &ctx->state.vg.path_user_to_surface_matrix,
+ sizeof(struct matrix));
+ matrix_invert(&pm);
+ matrix_mult(&pm, &mat);
+ memcpy(&mat, &pm, sizeof(struct matrix));
+ }
+
+ map[8] = mat.m[0]; map[9] = mat.m[3]; map[10] = mat.m[6]; map[11] = 0.f;
+ map[12] = mat.m[1]; map[13] = mat.m[4]; map[14] = mat.m[7]; map[15] = 0.f;
+ map[16] = mat.m[2]; map[17] = mat.m[5]; map[18] = mat.m[8]; map[19] = 0.f;
+ }
+}
+
+void paint_set_type(struct vg_paint *paint, VGPaintType type)
+{
+ paint->type = type;
+}
+
+void paint_set_ramp_stops(struct vg_paint *paint, const VGfloat *stops,
+ int num)
+{
+ const VGfloat default_stops[] = {0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f, 1.0f};
+ VGint i;
+ const VGint num_stops = num / 5;
+ VGfloat last_coord;
+
+ paint->gradient.num_stops = num;
+ if (num) {
+ free(paint->gradient.ramp_stops);
+ paint->gradient.ramp_stops = malloc(sizeof(VGfloat)*num);
+ memcpy(paint->gradient.ramp_stops, stops, sizeof(VGfloat)*num);
+ } else
+ return;
+
+ /* stops must be in increasing order. the last stop is 1.0. if the
+ * first one is bigger than 1 then the whole sequence is invalid*/
+ if (stops[0] > 1) {
+ stops = default_stops;
+ num = 10;
+ }
+ last_coord = stops[0];
+ for (i = 1; i < num_stops; ++i) {
+ VGint idx = 5 * i;
+ VGfloat coord = stops[idx];
+ if (!floatsEqual(last_coord, coord) && coord < last_coord) {
+ stops = default_stops;
+ num = 10;
+ break;
+ }
+ last_coord = coord;
+ }
+
+ create_gradient_data(stops, num / 5, paint->gradient.color_data,
+ 1024);
+
+ if (paint->gradient.texture) {
+ pipe_texture_reference(&paint->gradient.texture, NULL);
+ paint->gradient.texture = 0;
+ }
+
+ paint->gradient.texture = create_gradient_texture(paint);
+}
+
+void paint_set_colori(struct vg_paint *p,
+ VGuint rgba)
+{
+ p->solid.color[0] = ((rgba >> 24) & 0xff) / 255.f;
+ p->solid.color[1] = ((rgba >> 16) & 0xff) / 255.f;
+ p->solid.color[2] = ((rgba >> 8) & 0xff) / 255.f;
+ p->solid.color[3] = ((rgba >> 0) & 0xff) / 255.f;
+}
+
+VGuint paint_colori(struct vg_paint *p)
+{
+#define F2B(f) (float_to_ubyte(f))
+
+ return ((F2B(p->solid.color[0]) << 24) |
+ (F2B(p->solid.color[1]) << 16) |
+ (F2B(p->solid.color[2]) << 8) |
+ (F2B(p->solid.color[3]) << 0));
+#undef F2B
+}
+
+void paint_set_linear_gradient(struct vg_paint *paint,
+ const VGfloat *coords)
+{
+ memcpy(paint->gradient.linear.coords, coords, sizeof(VGfloat) * 4);
+}
+
+void paint_set_spread_mode(struct vg_paint *paint,
+ VGint mode)
+{
+ paint->gradient.spread = mode;
+ switch(mode) {
+ case VG_COLOR_RAMP_SPREAD_PAD:
+ paint->gradient.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ break;
+ case VG_COLOR_RAMP_SPREAD_REPEAT:
+ paint->gradient.sampler.wrap_s = PIPE_TEX_WRAP_REPEAT;
+ break;
+ case VG_COLOR_RAMP_SPREAD_REFLECT:
+ paint->gradient.sampler.wrap_s = PIPE_TEX_WRAP_MIRROR_REPEAT;
+ break;
+ }
+}
+
+VGColorRampSpreadMode paint_spread_mode(struct vg_paint *paint)
+{
+ return paint->gradient.spread;
+}
+
+void paint_set_radial_gradient(struct vg_paint *paint,
+ const VGfloat *values)
+{
+ memcpy(paint->gradient.radial.vals, values, sizeof(VGfloat) * 5);
+}
+
+void paint_set_pattern(struct vg_paint *paint,
+ struct vg_image *img)
+{
+ if (paint->pattern.texture)
+ pipe_texture_reference(&paint->pattern.texture, NULL);
+
+ paint->pattern.texture = 0;
+ pipe_texture_reference(&paint->pattern.texture,
+ img->texture);
+}
+
+void paint_set_pattern_tiling(struct vg_paint *paint,
+ VGTilingMode mode)
+{
+ paint->pattern.tiling_mode = mode;
+
+ switch(mode) {
+ case VG_TILE_FILL:
+ paint->pattern.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_BORDER;
+ paint->pattern.sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_BORDER;
+ break;
+ case VG_TILE_PAD:
+ paint->pattern.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ paint->pattern.sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ break;
+ case VG_TILE_REPEAT:
+ paint->pattern.sampler.wrap_s = PIPE_TEX_WRAP_REPEAT;
+ paint->pattern.sampler.wrap_t = PIPE_TEX_WRAP_REPEAT;
+ break;
+ case VG_TILE_REFLECT:
+ paint->pattern.sampler.wrap_s = PIPE_TEX_WRAP_MIRROR_REPEAT;
+ paint->pattern.sampler.wrap_t = PIPE_TEX_WRAP_MIRROR_REPEAT;
+ break;
+ default:
+ debug_assert("!Unknown tiling mode");
+ }
+}
+
+void paint_get_color(struct vg_paint *paint,
+ VGfloat *color)
+{
+ color[0] = paint->solid.color[0];
+ color[1] = paint->solid.color[1];
+ color[2] = paint->solid.color[2];
+ color[3] = paint->solid.color[3];
+}
+
+void paint_ramp_stops(struct vg_paint *paint, VGfloat *stops,
+ int num)
+{
+ memcpy(stops, paint->gradient.ramp_stops, sizeof(VGfloat)*num);
+}
+
+void paint_linear_gradient(struct vg_paint *paint,
+ VGfloat *coords)
+{
+ memcpy(coords, paint->gradient.linear.coords, sizeof(VGfloat)*4);
+}
+
+void paint_radial_gradient(struct vg_paint *paint,
+ VGfloat *coords)
+{
+ memcpy(coords, paint->gradient.radial.vals, sizeof(VGfloat)*5);
+}
+
+int paint_num_ramp_stops(struct vg_paint *paint)
+{
+ return paint->gradient.num_stops;
+}
+
+VGPaintType paint_type(struct vg_paint *paint)
+{
+ return paint->type;
+}
+
+void paint_set_coloriv(struct vg_paint *paint,
+ const VGint *color)
+{
+ paint->solid.color[0] = color[0];
+ paint->solid.color[1] = color[1];
+ paint->solid.color[2] = color[2];
+ paint->solid.color[3] = color[3];
+
+ paint->solid.colori[0] = color[0];
+ paint->solid.colori[1] = color[1];
+ paint->solid.colori[2] = color[2];
+ paint->solid.colori[3] = color[3];
+}
+
+void paint_get_coloriv(struct vg_paint *paint,
+ VGint *color)
+{
+ color[0] = paint->solid.colori[0];
+ color[1] = paint->solid.colori[1];
+ color[2] = paint->solid.colori[2];
+ color[3] = paint->solid.colori[3];
+}
+
+void paint_set_color_ramp_premultiplied(struct vg_paint *paint,
+ VGboolean set)
+{
+ paint->gradient.color_ramps_premultiplied = set;
+}
+
+VGboolean paint_color_ramp_premultiplied(struct vg_paint *paint)
+{
+ return paint->gradient.color_ramps_premultiplied;
+}
+
+void paint_set_ramp_stopsi(struct vg_paint *paint, const VGint *stops,
+ int num)
+{
+ if (num) {
+ free(paint->gradient.ramp_stopsi);
+ paint->gradient.ramp_stopsi = malloc(sizeof(VGint)*num);
+ memcpy(paint->gradient.ramp_stopsi, stops, sizeof(VGint)*num);
+ }
+}
+
+void paint_ramp_stopsi(struct vg_paint *paint, VGint *stops,
+ int num)
+{
+ memcpy(stops, paint->gradient.ramp_stopsi, sizeof(VGint)*num);
+}
+
+void paint_set_linear_gradienti(struct vg_paint *paint,
+ const VGint *coords)
+{
+ memcpy(paint->gradient.linear.coordsi, coords, sizeof(VGint) * 4);
+}
+
+void paint_linear_gradienti(struct vg_paint *paint,
+ VGint *coords)
+{
+ memcpy(coords, paint->gradient.linear.coordsi, sizeof(VGint)*4);
+}
+
+void paint_set_radial_gradienti(struct vg_paint *paint,
+ const VGint *values)
+{
+ memcpy(paint->gradient.radial.valsi, values, sizeof(VGint) * 5);
+}
+
+void paint_radial_gradienti(struct vg_paint *paint,
+ VGint *coords)
+{
+ memcpy(coords, paint->gradient.radial.valsi, sizeof(VGint)*5);
+}
+
+VGTilingMode paint_pattern_tiling(struct vg_paint *paint)
+{
+ return paint->pattern.tiling_mode;
+}
+
+VGint paint_bind_samplers(struct vg_paint *paint, struct pipe_sampler_state **samplers,
+ struct pipe_texture **textures)
+{
+ struct vg_context *ctx = vg_current_context();
+
+ switch(paint->type) {
+ case VG_PAINT_TYPE_LINEAR_GRADIENT:
+ case VG_PAINT_TYPE_RADIAL_GRADIENT: {
+ if (paint->gradient.texture) {
+ paint->gradient.sampler.min_img_filter = image_sampler_filter(ctx);
+ paint->gradient.sampler.mag_img_filter = image_sampler_filter(ctx);
+ samplers[0] = &paint->gradient.sampler;
+ textures[0] = paint->gradient.texture;
+ return 1;
+ }
+ }
+ break;
+ case VG_PAINT_TYPE_PATTERN: {
+ memcpy(paint->pattern.sampler.border_color,
+ ctx->state.vg.tile_fill_color,
+ sizeof(VGfloat) * 4);
+ paint->pattern.sampler.min_img_filter = image_sampler_filter(ctx);
+ paint->pattern.sampler.mag_img_filter = image_sampler_filter(ctx);
+ samplers[0] = &paint->pattern.sampler;
+ textures[0] = paint->pattern.texture;
+ return 1;
+ }
+ break;
+ default:
+ samplers[0] = &paint->pattern.sampler; /* dummy */
+ textures[0] = 0;
+ return 0;
+ break;
+ }
+ return 0;
+}
+
+void paint_resolve_type(struct vg_paint *paint)
+{
+ if (paint->type == VG_PAINT_TYPE_PATTERN &&
+ !paint->pattern.texture) {
+ paint->type = VG_PAINT_TYPE_COLOR;
+ }
+}
+
+VGint paint_constant_buffer_size(struct vg_paint *paint)
+{
+ switch(paint->type) {
+ case VG_PAINT_TYPE_COLOR:
+ return 8 * sizeof(VGfloat);/*4 color + 4 constants (0.f,1.f,2.f,4.f)*/
+ break;
+ case VG_PAINT_TYPE_LINEAR_GRADIENT:
+ return 20 * sizeof(VGfloat);
+ break;
+ case VG_PAINT_TYPE_RADIAL_GRADIENT:
+ return 20 * sizeof(VGfloat);
+ break;
+ case VG_PAINT_TYPE_PATTERN:
+ return 20 * sizeof(VGfloat);
+ break;
+ default:
+ debug_printf("Uknown paint type: %d\n", paint->type);
+ }
+
+ return 0;
+}
+
+void paint_fill_constant_buffer(struct vg_paint *paint,
+ void *buffer)
+{
+ switch(paint->type) {
+ case VG_PAINT_TYPE_COLOR:
+ paint_color_buffer(paint, buffer);
+ break;
+ case VG_PAINT_TYPE_LINEAR_GRADIENT:
+ paint_linear_gradient_buffer(paint, buffer);
+ break;
+ case VG_PAINT_TYPE_RADIAL_GRADIENT:
+ paint_radial_gradient_buffer(paint, buffer);
+ break;
+ case VG_PAINT_TYPE_PATTERN:
+ paint_pattern_buffer(paint, buffer);
+ break;
+
+ default:
+ abort();
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-29 11:29:51 +0000