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path: root/src/gallium/state_trackers/vega/paint.c
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Diffstat (limited to 'src/gallium/state_trackers/vega/paint.c')
-rw-r--r--src/gallium/state_trackers/vega/paint.c125
1 files changed, 79 insertions, 46 deletions
diff --git a/src/gallium/state_trackers/vega/paint.c b/src/gallium/state_trackers/vega/paint.c
index c0c8cddabe..2db8cbcf7c 100644
--- a/src/gallium/state_trackers/vega/paint.c
+++ b/src/gallium/state_trackers/vega/paint.c
@@ -28,7 +28,6 @@
#include "matrix.h"
#include "image.h"
-#include "st_inlines.h"
#include "pipe/p_compiler.h"
#include "util/u_inlines.h"
@@ -155,14 +154,15 @@ static INLINE struct pipe_resource *create_gradient_texture(struct vg_paint *p)
templ.width0 = 1024;
templ.height0 = 1;
templ.depth0 = 1;
+ templ.array_size = 1;
templ.bind = PIPE_BIND_SAMPLER_VIEW;
tex = screen->resource_create(screen, &templ);
{ /* upload color_data */
struct pipe_transfer *transfer =
- st_no_flush_get_transfer(p->base.ctx, tex, 0, 0, 0,
- PIPE_TRANSFER_WRITE, 0, 0, 1024, 1);
+ pipe_get_transfer(p->base.ctx->pipe, tex, 0, 0,
+ PIPE_TRANSFER_WRITE, 0, 0, 1024, 1);
void *map = pipe->transfer_map(pipe, transfer);
memcpy(map, p->gradient.color_data, sizeof(VGint)*1024);
pipe->transfer_unmap(pipe, transfer);
@@ -261,14 +261,18 @@ static INLINE void paint_color_buffer(struct vg_paint *paint, void *buffer)
map[7] = 4.f;
}
-static INLINE void paint_linear_gradient_buffer(struct vg_paint *paint, void *buffer)
+static INLINE void paint_linear_gradient_buffer(struct vg_paint *paint,
+ const struct matrix *inv,
+ void *buffer)
{
- struct vg_context *ctx = paint->base.ctx;
VGfloat *map = (VGfloat*)buffer;
+ VGfloat dd;
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]);
+ dd = (map[0] * map[0] + map[1] * map[1]);
+
+ map[2] = (dd > 0.0f) ? 1.f / dd : 0.f;
map[3] = 1.f;
map[4] = 0.f;
@@ -277,15 +281,10 @@ static INLINE void paint_linear_gradient_buffer(struct vg_paint *paint, void *bu
map[7] = 4.f;
{
struct matrix mat;
- struct matrix inv;
matrix_load_identity(&mat);
+ /* VEGA_LINEAR_GRADIENT_SHADER expects the first point to be at (0, 0) */
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));
+ matrix_mult(&mat, inv);
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;
@@ -298,17 +297,37 @@ static INLINE void paint_linear_gradient_buffer(struct vg_paint *paint, void *bu
}
-static INLINE void paint_radial_gradient_buffer(struct vg_paint *paint, void *buffer)
+static INLINE void paint_radial_gradient_buffer(struct vg_paint *paint,
+ const struct matrix *inv,
+ void *buffer)
{
- VGfloat *radialCoords = paint->gradient.radial.vals;
- struct vg_context *ctx = paint->base.ctx;
-
+ const VGfloat *center = &paint->gradient.radial.vals[0];
+ const VGfloat *focal = &paint->gradient.radial.vals[2];
+ VGfloat rr = paint->gradient.radial.vals[4];
VGfloat *map = (VGfloat*)buffer;
+ VGfloat dd, new_focal[2];
+
+ rr *= rr;
+
+ map[0] = center[0] - focal[0];
+ map[1] = center[1] - focal[1];
+ dd = map[0] * map[0] + map[1] * map[1];
+
+ /* focal point must lie inside the circle */
+ if (0.998f * rr < dd) {
+ VGfloat scale;
+
+ scale = (dd > 0.0f) ? sqrt(0.998f * rr / dd) : 0.0f;
+ map[0] *= scale;
+ map[1] *= scale;
- 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];
+ new_focal[0] = center[0] - map[0];
+ new_focal[1] = center[1] - map[1];
+ dd = map[0] * map[0] + map[1] * map[1];
+ focal = new_focal;
+ }
+
+ map[2] = (rr > dd) ? rr - dd : 1.0f;
map[3] = 1.f;
map[4] = 0.f;
@@ -318,15 +337,9 @@ static INLINE void paint_radial_gradient_buffer(struct vg_paint *paint, void *bu
{
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));
+ matrix_translate(&mat, -focal[0], -focal[1]);
+ matrix_mult(&mat, inv);
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;
@@ -340,10 +353,10 @@ static INLINE void paint_radial_gradient_buffer(struct vg_paint *paint, void *bu
}
-static INLINE void paint_pattern_buffer(struct vg_paint *paint, void *buffer)
+static INLINE void paint_pattern_buffer(struct vg_paint *paint,
+ const struct matrix *inv,
+ void *buffer)
{
- struct vg_context *ctx = paint->base.ctx;
-
VGfloat *map = (VGfloat *)buffer;
memcpy(map, paint->solid.color, 4 * sizeof(VGfloat));
@@ -353,17 +366,8 @@ static INLINE void paint_pattern_buffer(struct vg_paint *paint, void *buffer)
map[7] = paint->pattern.sampler_view->texture->height0;
{
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));
- }
+
+ memcpy(&mat, inv, sizeof(*inv));
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;
@@ -672,6 +676,34 @@ void paint_resolve_type(struct vg_paint *paint)
}
}
+VGboolean paint_is_degenerate(struct vg_paint *paint)
+{
+ VGboolean degen;
+ VGfloat *vals;
+
+
+ switch (paint->type) {
+ case VG_PAINT_TYPE_LINEAR_GRADIENT:
+ vals = paint->gradient.linear.coords;
+ /* two points are coincident */
+ degen = (floatsEqual(vals[0], vals[2]) &&
+ floatsEqual(vals[1], vals[3]));
+ break;
+ case VG_PAINT_TYPE_RADIAL_GRADIENT:
+ vals = paint->gradient.radial.vals;
+ /* radius <= 0 */
+ degen = (vals[4] <= 0.0f);
+ break;
+ case VG_PAINT_TYPE_COLOR:
+ case VG_PAINT_TYPE_PATTERN:
+ default:
+ degen = VG_FALSE;
+ break;
+ }
+
+ return degen;
+}
+
VGint paint_constant_buffer_size(struct vg_paint *paint)
{
switch(paint->type) {
@@ -695,6 +727,7 @@ VGint paint_constant_buffer_size(struct vg_paint *paint)
}
void paint_fill_constant_buffer(struct vg_paint *paint,
+ const struct matrix *mat,
void *buffer)
{
switch(paint->type) {
@@ -702,13 +735,13 @@ void paint_fill_constant_buffer(struct vg_paint *paint,
paint_color_buffer(paint, buffer);
break;
case VG_PAINT_TYPE_LINEAR_GRADIENT:
- paint_linear_gradient_buffer(paint, buffer);
+ paint_linear_gradient_buffer(paint, mat, buffer);
break;
case VG_PAINT_TYPE_RADIAL_GRADIENT:
- paint_radial_gradient_buffer(paint, buffer);
+ paint_radial_gradient_buffer(paint, mat, buffer);
break;
case VG_PAINT_TYPE_PATTERN:
- paint_pattern_buffer(paint, buffer);
+ paint_pattern_buffer(paint, mat, buffer);
break;
default:
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-07 13:05:08 +0000