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-rw-r--r--src/gallium/drivers/r300/r300_screen.c1
-rw-r--r--src/gallium/drivers/softpipe/sp_screen.c2
-rw-r--r--src/gallium/include/pipe/p_defines.h1
-rw-r--r--src/mesa/state_tracker/st_atom_texture.c57
-rw-r--r--src/mesa/state_tracker/st_extensions.c4
5 files changed, 63 insertions, 2 deletions
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index e7db074be62..497e24b7605 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -113,6 +113,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
case PIPE_CAP_BLEND_EQUATION_SEPARATE:
+ case PIPE_CAP_TEXTURE_SWIZZLE:
return 1;
/* Unsupported features (boolean caps). */
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index cb59040395b..8abe7f50e17 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -90,6 +90,8 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
return 1;
case PIPE_CAP_TEXTURE_SHADOW_MAP:
return 1;
+ case PIPE_CAP_TEXTURE_SWIZZLE:
+ return 1;
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
return SP_MAX_TEXTURE_2D_LEVELS;
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 420649c5a9b..b00677425ce 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -425,6 +425,7 @@ enum pipe_cap {
PIPE_CAP_OCCLUSION_QUERY,
PIPE_CAP_TIMER_QUERY,
PIPE_CAP_TEXTURE_SHADOW_MAP,
+ PIPE_CAP_TEXTURE_SWIZZLE,
PIPE_CAP_MAX_TEXTURE_2D_LEVELS,
PIPE_CAP_MAX_TEXTURE_3D_LEVELS,
PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS,
diff --git a/src/mesa/state_tracker/st_atom_texture.c b/src/mesa/state_tracker/st_atom_texture.c
index d403b7db1e5..65b57f15911 100644
--- a/src/mesa/state_tracker/st_atom_texture.c
+++ b/src/mesa/state_tracker/st_atom_texture.c
@@ -33,6 +33,7 @@
#include "main/macros.h"
+#include "shader/prog_instruction.h"
#include "st_context.h"
#include "st_atom.h"
@@ -42,6 +43,54 @@
#include "util/u_inlines.h"
#include "cso_cache/cso_context.h"
+static boolean check_sampler_swizzle(struct pipe_sampler_view *sv,
+ uint32_t _swizzle)
+{
+ if ((sv->swizzle_r != GET_SWZ(_swizzle, 0)) ||
+ (sv->swizzle_g != GET_SWZ(_swizzle, 1)) ||
+ (sv->swizzle_b != GET_SWZ(_swizzle, 2)) ||
+ (sv->swizzle_a != GET_SWZ(_swizzle, 3)))
+ return true;
+ return false;
+}
+
+static INLINE struct pipe_sampler_view *
+st_create_texture_sampler_view_from_stobj(struct pipe_context *pipe,
+ struct st_texture_object *stObj)
+
+{
+ struct pipe_sampler_view templ;
+
+ u_sampler_view_default_template(&templ,
+ stObj->pt,
+ stObj->pt->format);
+
+ if (stObj->base._Swizzle != SWIZZLE_NOOP) {
+ templ.swizzle_r = GET_SWZ(stObj->base._Swizzle, 0);
+ templ.swizzle_g = GET_SWZ(stObj->base._Swizzle, 1);
+ templ.swizzle_b = GET_SWZ(stObj->base._Swizzle, 2);
+ templ.swizzle_a = GET_SWZ(stObj->base._Swizzle, 3);
+ }
+
+ return pipe->create_sampler_view(pipe, stObj->pt, &templ);
+}
+
+
+static INLINE struct pipe_sampler_view *
+st_get_texture_sampler_view_from_stobj(struct st_texture_object *stObj,
+ struct pipe_context *pipe)
+
+{
+ if (!stObj || !stObj->pt) {
+ return NULL;
+ }
+
+ if (!stObj->sampler_view) {
+ stObj->sampler_view = st_create_texture_sampler_view_from_stobj(pipe, stObj);
+ }
+
+ return stObj->sampler_view;
+}
static void
update_textures(struct st_context *st)
@@ -85,9 +134,13 @@ update_textures(struct st_context *st)
st->state.num_textures = su + 1;
- sampler_view = st_get_texture_sampler_view(stObj, pipe);
- }
+ /* if sampler view has changed dereference it */
+ if (stObj->sampler_view)
+ if (check_sampler_swizzle(stObj->sampler_view, stObj->base._Swizzle))
+ pipe_sampler_view_reference(&stObj->sampler_view, NULL);
+ sampler_view = st_get_texture_sampler_view_from_stobj(stObj, pipe);
+ }
pipe_sampler_view_reference(&st->state.sampler_views[su], sampler_view);
}
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 4093eedde9a..2c2e10dead7 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -248,6 +248,10 @@ void st_init_extensions(struct st_context *st)
ctx->Extensions.ARB_draw_buffers = GL_TRUE;
}
+ if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) {
+ ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
+ }
+
if (screen->get_param(screen, PIPE_CAP_GLSL)) {
ctx->Extensions.ARB_fragment_shader = GL_TRUE;
ctx->Extensions.ARB_vertex_shader = GL_TRUE;