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authormarha <marha@users.sourceforge.net>2011-04-12 12:47:58 +0000
committermarha <marha@users.sourceforge.net>2011-04-12 12:47:58 +0000
commit7730393619080086530e24d3b594351b4114f608 (patch)
tree582900958a9de9e787833ae72ea1a60181ba5965 /mesalib/src/mesa/state_tracker/st_atom_sampler.c
parent2fb58f16eeec8ef3ec2a25e246477aab64e38a7d (diff)
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mesa libXext pixman git update 12 Apr 2011
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_atom_sampler.c')
-rw-r--r--mesalib/src/mesa/state_tracker/st_atom_sampler.c461
1 files changed, 233 insertions, 228 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_atom_sampler.c b/mesalib/src/mesa/state_tracker/st_atom_sampler.c
index 48b94500d..808aa73a0 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_sampler.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_sampler.c
@@ -1,228 +1,233 @@
-/**************************************************************************
- *
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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 TUNGSTEN GRAPHICS 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.
- *
- **************************************************************************/
-
- /*
- * Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
- * Brian Paul
- */
-
-
-#include "main/macros.h"
-
-#include "st_context.h"
-#include "st_cb_texture.h"
-#include "st_format.h"
-#include "st_atom.h"
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-
-#include "cso_cache/cso_context.h"
-
-
-/**
- * Convert GLenum texcoord wrap tokens to pipe tokens.
- */
-static GLuint
-gl_wrap_xlate(GLenum wrap)
-{
- switch (wrap) {
- case GL_REPEAT:
- return PIPE_TEX_WRAP_REPEAT;
- case GL_CLAMP:
- return PIPE_TEX_WRAP_CLAMP;
- case GL_CLAMP_TO_EDGE:
- return PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- case GL_CLAMP_TO_BORDER:
- return PIPE_TEX_WRAP_CLAMP_TO_BORDER;
- case GL_MIRRORED_REPEAT:
- return PIPE_TEX_WRAP_MIRROR_REPEAT;
- case GL_MIRROR_CLAMP_EXT:
- return PIPE_TEX_WRAP_MIRROR_CLAMP;
- case GL_MIRROR_CLAMP_TO_EDGE_EXT:
- return PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE;
- case GL_MIRROR_CLAMP_TO_BORDER_EXT:
- return PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER;
- default:
- assert(0);
- return 0;
- }
-}
-
-
-static GLuint
-gl_filter_to_mip_filter(GLenum filter)
-{
- switch (filter) {
- case GL_NEAREST:
- case GL_LINEAR:
- return PIPE_TEX_MIPFILTER_NONE;
-
- case GL_NEAREST_MIPMAP_NEAREST:
- case GL_LINEAR_MIPMAP_NEAREST:
- return PIPE_TEX_MIPFILTER_NEAREST;
-
- case GL_NEAREST_MIPMAP_LINEAR:
- case GL_LINEAR_MIPMAP_LINEAR:
- return PIPE_TEX_MIPFILTER_LINEAR;
-
- default:
- assert(0);
- return PIPE_TEX_MIPFILTER_NONE;
- }
-}
-
-
-static GLuint
-gl_filter_to_img_filter(GLenum filter)
-{
- switch (filter) {
- case GL_NEAREST:
- case GL_NEAREST_MIPMAP_NEAREST:
- case GL_NEAREST_MIPMAP_LINEAR:
- return PIPE_TEX_FILTER_NEAREST;
-
- case GL_LINEAR:
- case GL_LINEAR_MIPMAP_NEAREST:
- case GL_LINEAR_MIPMAP_LINEAR:
- return PIPE_TEX_FILTER_LINEAR;
-
- default:
- assert(0);
- return PIPE_TEX_FILTER_NEAREST;
- }
-}
-
-
-static void
-update_samplers(struct st_context *st)
-{
- struct gl_vertex_program *vprog = st->ctx->VertexProgram._Current;
- struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current;
- const GLbitfield samplersUsed = (vprog->Base.SamplersUsed |
- fprog->Base.SamplersUsed);
- GLuint su;
-
- st->state.num_samplers = 0;
-
- /* loop over sampler units (aka tex image units) */
- for (su = 0; su < st->ctx->Const.MaxTextureImageUnits; su++) {
- struct pipe_sampler_state *sampler = st->state.samplers + su;
-
- memset(sampler, 0, sizeof(*sampler));
-
- if (samplersUsed & (1 << su)) {
- struct gl_texture_object *texobj;
- struct gl_texture_image *teximg;
- GLuint texUnit;
-
- if (fprog->Base.SamplersUsed & (1 << su))
- texUnit = fprog->Base.SamplerUnits[su];
- else
- texUnit = vprog->Base.SamplerUnits[su];
-
- texobj = st->ctx->Texture.Unit[texUnit]._Current;
- if (!texobj) {
- texobj = st_get_default_texture(st);
- }
-
- teximg = texobj->Image[0][texobj->BaseLevel];
-
- sampler->wrap_s = gl_wrap_xlate(texobj->WrapS);
- sampler->wrap_t = gl_wrap_xlate(texobj->WrapT);
- sampler->wrap_r = gl_wrap_xlate(texobj->WrapR);
-
- sampler->min_img_filter = gl_filter_to_img_filter(texobj->MinFilter);
- sampler->min_mip_filter = gl_filter_to_mip_filter(texobj->MinFilter);
- sampler->mag_img_filter = gl_filter_to_img_filter(texobj->MagFilter);
-
- if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB)
- sampler->normalized_coords = 1;
-
- sampler->lod_bias = st->ctx->Texture.Unit[texUnit].LodBias +
- texobj->LodBias;
-
- sampler->min_lod = CLAMP(texobj->MinLod,
- 0.0f,
- (GLfloat) texobj->MaxLevel - texobj->BaseLevel);
- sampler->max_lod = MIN2((GLfloat) texobj->MaxLevel - texobj->BaseLevel,
- texobj->MaxLod);
- if (sampler->max_lod < sampler->min_lod) {
- /* The GL spec doesn't seem to specify what to do in this case.
- * Swap the values.
- */
- float tmp = sampler->max_lod;
- sampler->max_lod = sampler->min_lod;
- sampler->min_lod = tmp;
- assert(sampler->min_lod <= sampler->max_lod);
- }
-
- st_translate_color(texobj->BorderColor.f,
- teximg ? teximg->_BaseFormat : GL_RGBA,
- sampler->border_color);
-
- sampler->max_anisotropy = (texobj->MaxAnisotropy == 1.0 ? 0 : (GLuint)texobj->MaxAnisotropy);
-
- /* only care about ARB_shadow, not SGI shadow */
- if (texobj->CompareMode == GL_COMPARE_R_TO_TEXTURE) {
- sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE;
- sampler->compare_func
- = st_compare_func_to_pipe(texobj->CompareFunc);
- }
-
- st->state.num_samplers = su + 1;
-
- /*printf("%s su=%u non-null\n", __FUNCTION__, su);*/
- cso_single_sampler(st->cso_context, su, sampler);
- if (su < st->ctx->Const.MaxVertexTextureImageUnits) {
- cso_single_vertex_sampler(st->cso_context, su, sampler);
- }
- }
- else {
- /*printf("%s su=%u null\n", __FUNCTION__, su);*/
- cso_single_sampler(st->cso_context, su, NULL);
- if (su < st->ctx->Const.MaxVertexTextureImageUnits) {
- cso_single_vertex_sampler(st->cso_context, su, NULL);
- }
- }
- }
-
- cso_single_sampler_done(st->cso_context);
- if (st->ctx->Const.MaxVertexTextureImageUnits > 0) {
- cso_single_vertex_sampler_done(st->cso_context);
- }
-}
-
-
-const struct st_tracked_state st_update_sampler = {
- "st_update_sampler", /* name */
- { /* dirty */
- _NEW_TEXTURE, /* mesa */
- 0, /* st */
- },
- update_samplers /* update */
-};
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+ /*
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ * Brian Paul
+ */
+
+
+#include "main/macros.h"
+
+#include "st_context.h"
+#include "st_cb_texture.h"
+#include "st_format.h"
+#include "st_atom.h"
+#include "st_texture.h"
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+
+#include "cso_cache/cso_context.h"
+
+
+/**
+ * Convert GLenum texcoord wrap tokens to pipe tokens.
+ */
+static GLuint
+gl_wrap_xlate(GLenum wrap)
+{
+ switch (wrap) {
+ case GL_REPEAT:
+ return PIPE_TEX_WRAP_REPEAT;
+ case GL_CLAMP:
+ return PIPE_TEX_WRAP_CLAMP;
+ case GL_CLAMP_TO_EDGE:
+ return PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ case GL_CLAMP_TO_BORDER:
+ return PIPE_TEX_WRAP_CLAMP_TO_BORDER;
+ case GL_MIRRORED_REPEAT:
+ return PIPE_TEX_WRAP_MIRROR_REPEAT;
+ case GL_MIRROR_CLAMP_EXT:
+ return PIPE_TEX_WRAP_MIRROR_CLAMP;
+ case GL_MIRROR_CLAMP_TO_EDGE_EXT:
+ return PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE;
+ case GL_MIRROR_CLAMP_TO_BORDER_EXT:
+ return PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER;
+ default:
+ assert(0);
+ return 0;
+ }
+}
+
+
+static GLuint
+gl_filter_to_mip_filter(GLenum filter)
+{
+ switch (filter) {
+ case GL_NEAREST:
+ case GL_LINEAR:
+ return PIPE_TEX_MIPFILTER_NONE;
+
+ case GL_NEAREST_MIPMAP_NEAREST:
+ case GL_LINEAR_MIPMAP_NEAREST:
+ return PIPE_TEX_MIPFILTER_NEAREST;
+
+ case GL_NEAREST_MIPMAP_LINEAR:
+ case GL_LINEAR_MIPMAP_LINEAR:
+ return PIPE_TEX_MIPFILTER_LINEAR;
+
+ default:
+ assert(0);
+ return PIPE_TEX_MIPFILTER_NONE;
+ }
+}
+
+
+static GLuint
+gl_filter_to_img_filter(GLenum filter)
+{
+ switch (filter) {
+ case GL_NEAREST:
+ case GL_NEAREST_MIPMAP_NEAREST:
+ case GL_NEAREST_MIPMAP_LINEAR:
+ return PIPE_TEX_FILTER_NEAREST;
+
+ case GL_LINEAR:
+ case GL_LINEAR_MIPMAP_NEAREST:
+ case GL_LINEAR_MIPMAP_LINEAR:
+ return PIPE_TEX_FILTER_LINEAR;
+
+ default:
+ assert(0);
+ return PIPE_TEX_FILTER_NEAREST;
+ }
+}
+
+
+static void
+update_samplers(struct st_context *st)
+{
+ struct gl_vertex_program *vprog = st->ctx->VertexProgram._Current;
+ struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current;
+ const GLbitfield samplersUsed = (vprog->Base.SamplersUsed |
+ fprog->Base.SamplersUsed);
+ GLuint su;
+
+ st->state.num_samplers = 0;
+
+ /* loop over sampler units (aka tex image units) */
+ for (su = 0; su < st->ctx->Const.MaxTextureImageUnits; su++) {
+ struct pipe_sampler_state *sampler = st->state.samplers + su;
+
+ memset(sampler, 0, sizeof(*sampler));
+
+ if (samplersUsed & (1 << su)) {
+ struct gl_texture_object *texobj;
+ struct gl_texture_image *teximg;
+ struct gl_sampler_object *msamp;
+ GLuint texUnit;
+
+ if (fprog->Base.SamplersUsed & (1 << su))
+ texUnit = fprog->Base.SamplerUnits[su];
+ else
+ texUnit = vprog->Base.SamplerUnits[su];
+
+ texobj = st->ctx->Texture.Unit[texUnit]._Current;
+ if (!texobj) {
+ texobj = st_get_default_texture(st);
+ }
+
+ teximg = texobj->Image[0][texobj->BaseLevel];
+
+ msamp = st_get_mesa_sampler(st->ctx, texUnit);
+
+ sampler->wrap_s = gl_wrap_xlate(msamp->WrapS);
+ sampler->wrap_t = gl_wrap_xlate(msamp->WrapT);
+ sampler->wrap_r = gl_wrap_xlate(msamp->WrapR);
+
+ sampler->min_img_filter = gl_filter_to_img_filter(msamp->MinFilter);
+ sampler->min_mip_filter = gl_filter_to_mip_filter(msamp->MinFilter);
+ sampler->mag_img_filter = gl_filter_to_img_filter(msamp->MagFilter);
+
+ if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB)
+ sampler->normalized_coords = 1;
+
+ sampler->lod_bias = st->ctx->Texture.Unit[texUnit].LodBias +
+ msamp->LodBias;
+
+ sampler->min_lod = CLAMP(msamp->MinLod,
+ 0.0f,
+ (GLfloat) texobj->MaxLevel - texobj->BaseLevel);
+ sampler->max_lod = MIN2((GLfloat) texobj->MaxLevel - texobj->BaseLevel,
+ msamp->MaxLod);
+ if (sampler->max_lod < sampler->min_lod) {
+ /* The GL spec doesn't seem to specify what to do in this case.
+ * Swap the values.
+ */
+ float tmp = sampler->max_lod;
+ sampler->max_lod = sampler->min_lod;
+ sampler->min_lod = tmp;
+ assert(sampler->min_lod <= sampler->max_lod);
+ }
+
+ st_translate_color(msamp->BorderColor.f,
+ teximg ? teximg->_BaseFormat : GL_RGBA,
+ sampler->border_color);
+
+ sampler->max_anisotropy = (msamp->MaxAnisotropy == 1.0 ?
+ 0 : (GLuint) msamp->MaxAnisotropy);
+
+ /* only care about ARB_shadow, not SGI shadow */
+ if (msamp->CompareMode == GL_COMPARE_R_TO_TEXTURE) {
+ sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE;
+ sampler->compare_func
+ = st_compare_func_to_pipe(msamp->CompareFunc);
+ }
+
+ st->state.num_samplers = su + 1;
+
+ /*printf("%s su=%u non-null\n", __FUNCTION__, su);*/
+ cso_single_sampler(st->cso_context, su, sampler);
+ if (su < st->ctx->Const.MaxVertexTextureImageUnits) {
+ cso_single_vertex_sampler(st->cso_context, su, sampler);
+ }
+ }
+ else {
+ /*printf("%s su=%u null\n", __FUNCTION__, su);*/
+ cso_single_sampler(st->cso_context, su, NULL);
+ if (su < st->ctx->Const.MaxVertexTextureImageUnits) {
+ cso_single_vertex_sampler(st->cso_context, su, NULL);
+ }
+ }
+ }
+
+ cso_single_sampler_done(st->cso_context);
+ if (st->ctx->Const.MaxVertexTextureImageUnits > 0) {
+ cso_single_vertex_sampler_done(st->cso_context);
+ }
+}
+
+
+const struct st_tracked_state st_update_sampler = {
+ "st_update_sampler", /* name */
+ { /* dirty */
+ _NEW_TEXTURE, /* mesa */
+ 0, /* st */
+ },
+ update_samplers /* update */
+};