1 files changed, 226 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_atom_texture.c b/src/mesa/state_tracker/st_atom_texture.c
new file mode 100644
index 0000000000..895681cb23
--- /dev/null
+++ b/src/mesa/state_tracker/st_atom_texture.c
@@ -0,0 +1,226 @@
+/**************************************************************************
+ * 
+ * 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 "shader/prog_instruction.h"
+
+#include "st_context.h"
+#include "st_atom.h"
+#include "st_texture.h"
+#include "st_format.h"
+#include "st_cb_texture.h"
+#include "pipe/p_context.h"
+#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,
+					  enum pipe_format format)
+					  
+{
+   struct pipe_sampler_view templ;
+
+   u_sampler_view_default_template(&templ,
+                                   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,
+				       enum pipe_format format)
+
+{
+   if (!stObj || !stObj->pt) {
+      return NULL;
+   }
+
+   if (!stObj->sampler_view) {
+      stObj->sampler_view = st_create_texture_sampler_view_from_stobj(pipe, stObj, format);
+   }
+
+   return stObj->sampler_view;
+}
+
+static void 
+update_textures(struct st_context *st)
+{
+   struct pipe_context *pipe = st->pipe;
+   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_textures = 0;
+
+   /* loop over sampler units (aka tex image units) */
+   for (su = 0; su < st->ctx->Const.MaxTextureImageUnits; su++) {
+      struct pipe_sampler_view *sampler_view = NULL;
+      enum pipe_format st_view_format;
+      if (samplersUsed & (1 << su)) {
+         struct gl_texture_object *texObj;
+         struct st_texture_object *stObj;
+         GLboolean retval;
+         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);
+         }
+         stObj = st_texture_object(texObj);
+
+         retval = st_finalize_texture(st->ctx, st->pipe, texObj);
+         if (!retval) {
+            /* out of mem */
+            continue;
+         }
+
+	 st_view_format = stObj->pt->format;
+	 {
+	    struct st_texture_image *firstImage;
+	    enum pipe_format firstImageFormat;
+	    firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]);
+
+	    firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat);
+	    if (firstImageFormat != stObj->pt->format)
+	       st_view_format = firstImageFormat;
+
+	 }
+         st->state.num_textures = su + 1;
+
+	 /* if sampler view has changed dereference it */
+	 if (stObj->sampler_view)
+	    if (check_sampler_swizzle(stObj->sampler_view, stObj->base._Swizzle) || (st_view_format != stObj->sampler_view->format))
+	       pipe_sampler_view_reference(&stObj->sampler_view, NULL);
+
+         sampler_view = st_get_texture_sampler_view_from_stobj(stObj, pipe, st_view_format);
+      }
+      pipe_sampler_view_reference(&st->state.sampler_views[su], sampler_view);
+   }
+
+   cso_set_fragment_sampler_views(st->cso_context,
+                                  st->state.num_textures,
+                                  st->state.sampler_views);
+   if (st->ctx->Const.MaxVertexTextureImageUnits > 0) {
+      cso_set_vertex_sampler_views(st->cso_context,
+                                   MIN2(st->state.num_textures,
+                                        st->ctx->Const.MaxVertexTextureImageUnits),
+                                   st->state.sampler_views);
+   }
+}
+
+
+const struct st_tracked_state st_update_texture = {
+   "st_update_texture",					/* name */
+   {							/* dirty */
+      _NEW_TEXTURE,					/* mesa */
+      ST_NEW_FRAGMENT_PROGRAM,				/* st */
+   },
+   update_textures					/* update */
+};
+
+
+
+
+static void 
+finalize_textures(struct st_context *st)
+{
+   struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current;
+   const GLboolean prev_missing_textures = st->missing_textures;
+   GLuint su;
+
+   st->missing_textures = GL_FALSE;
+
+   for (su = 0; su < st->ctx->Const.MaxTextureCoordUnits; su++) {
+      if (fprog->Base.SamplersUsed & (1 << su)) {
+         const GLuint texUnit = fprog->Base.SamplerUnits[su];
+         struct gl_texture_object *texObj
+            = st->ctx->Texture.Unit[texUnit]._Current;
+
+         if (texObj) {
+            GLboolean retval;
+
+            retval = st_finalize_texture(st->ctx, st->pipe, texObj);
+            if (!retval) {
+               /* out of mem */
+               st->missing_textures = GL_TRUE;
+               continue;
+            }
+         }
+      }
+   }
+
+   if (prev_missing_textures != st->missing_textures)
+      st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
+}
+
+
+
+const struct st_tracked_state st_finalize_textures = {
+   "st_finalize_textures",		/* name */
+   {					/* dirty */
+      _NEW_TEXTURE,			/* mesa */
+      0,				/* st */
+   },
+   finalize_textures			/* update */
+};