import Mesa 11.0.6

1 files changed, 397 insertions, 0 deletions

diff --git a/lib/mesa/src/gallium/drivers/softpipe/sp_state_shader.c b/lib/mesa/src/gallium/drivers/softpipe/sp_state_shader.c
new file mode 100644
index 000000000..8ab2903dc
--- /dev/null
+++ b/lib/mesa/src/gallium/drivers/softpipe/sp_state_shader.c
@@ -0,0 +1,397 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 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 "sp_context.h"
+#include "sp_state.h"
+#include "sp_fs.h"
+#include "sp_texture.h"
+
+#include "pipe/p_defines.h"
+#include "util/u_memory.h"
+#include "util/u_inlines.h"
+#include "util/u_pstipple.h"
+#include "draw/draw_context.h"
+#include "draw/draw_vs.h"
+#include "draw/draw_gs.h"
+#include "tgsi/tgsi_dump.h"
+#include "tgsi/tgsi_scan.h"
+#include "tgsi/tgsi_parse.h"
+
+
+/**
+ * Create a new fragment shader variant.
+ */
+static struct sp_fragment_shader_variant *
+create_fs_variant(struct softpipe_context *softpipe,
+                  struct sp_fragment_shader *fs,
+                  const struct sp_fragment_shader_variant_key *key)
+{
+   struct sp_fragment_shader_variant *var;
+   struct pipe_shader_state *curfs = &fs->shader;
+
+   /* codegen, create variant object */
+   var = softpipe_create_fs_variant_exec(softpipe);
+
+   if (var) {
+      var->key = *key;
+
+#if DO_PSTIPPLE_IN_HELPER_MODULE
+      if (key->polygon_stipple) {
+         /* get new shader that implements polygon stippling */
+         var->tokens = 
+            util_pstipple_create_fragment_shader(curfs->tokens,
+                                                 &var->stipple_sampler_unit, 0);
+      }
+      else
+#endif
+      {
+         var->tokens = tgsi_dup_tokens(curfs->tokens);
+         var->stipple_sampler_unit = 0;
+      }
+
+      tgsi_scan_shader(var->tokens, &var->info);
+
+      /* See comments elsewhere about draw fragment shaders */
+#if 0
+      /* draw's fs state */
+      var->draw_shader = draw_create_fragment_shader(softpipe->draw,
+                                                     &fs->shader);
+      if (!var->draw_shader) {
+         var->delete(var);
+         FREE((void *) var->tokens);
+         return NULL;
+      }
+#endif
+
+      /* insert variant into linked list */
+      var->next = fs->variants;
+      fs->variants = var;
+   }
+
+   return var;
+}
+
+
+struct sp_fragment_shader_variant *
+softpipe_find_fs_variant(struct softpipe_context *sp,
+                         struct sp_fragment_shader *fs,
+                         const struct sp_fragment_shader_variant_key *key)
+{
+   struct sp_fragment_shader_variant *var;
+
+   for (var = fs->variants; var; var = var->next) {
+      if (memcmp(&var->key, key, sizeof(*key)) == 0) {
+         /* found it */
+         return var;
+      }
+   }
+
+   return create_fs_variant(sp, fs, key);
+}
+
+
+static void *
+softpipe_create_fs_state(struct pipe_context *pipe,
+                         const struct pipe_shader_state *templ)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+   struct sp_fragment_shader *state = CALLOC_STRUCT(sp_fragment_shader);
+
+   /* debug */
+   if (softpipe->dump_fs) 
+      tgsi_dump(templ->tokens, 0);
+
+   /* we need to keep a local copy of the tokens */
+   state->shader.tokens = tgsi_dup_tokens(templ->tokens);
+
+   /* draw's fs state */
+   state->draw_shader = draw_create_fragment_shader(softpipe->draw,
+                                                    &state->shader);
+   if (!state->draw_shader) {
+      tgsi_free_tokens(state->shader.tokens);
+      FREE(state);
+      return NULL;
+   }
+
+   return state;
+}
+
+
+static void
+softpipe_bind_fs_state(struct pipe_context *pipe, void *fs)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+   struct sp_fragment_shader *state = (struct sp_fragment_shader *) fs;
+
+   if (softpipe->fs == fs)
+      return;
+
+   draw_flush(softpipe->draw);
+
+   softpipe->fs = fs;
+
+   /* This depends on the current fragment shader and must always be
+    * re-validated before use.
+    */
+   softpipe->fs_variant = NULL;
+
+   if (state)
+      draw_bind_fragment_shader(softpipe->draw,
+                                state->draw_shader);
+   else
+      draw_bind_fragment_shader(softpipe->draw, NULL);
+
+   softpipe->dirty |= SP_NEW_FS;
+}
+
+
+static void
+softpipe_delete_fs_state(struct pipe_context *pipe, void *fs)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+   struct sp_fragment_shader *state = fs;
+   struct sp_fragment_shader_variant *var, *next_var;
+
+   assert(fs != softpipe->fs);
+
+   /* delete variants */
+   for (var = state->variants; var; var = next_var) {
+      next_var = var->next;
+
+      assert(var != softpipe->fs_variant);
+
+      /* See comments elsewhere about draw fragment shaders */
+#if 0
+      draw_delete_fragment_shader(softpipe->draw, var->draw_shader);
+#endif
+
+      var->delete(var, softpipe->fs_machine);
+   }
+
+   draw_delete_fragment_shader(softpipe->draw, state->draw_shader);
+
+   tgsi_free_tokens(state->shader.tokens);
+   FREE(state);
+}
+
+
+static void *
+softpipe_create_vs_state(struct pipe_context *pipe,
+                         const struct pipe_shader_state *templ)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+   struct sp_vertex_shader *state;
+
+   state = CALLOC_STRUCT(sp_vertex_shader);
+   if (state == NULL ) 
+      goto fail;
+
+   /* copy shader tokens, the ones passed in will go away.
+    */
+   state->shader.tokens = tgsi_dup_tokens(templ->tokens);
+   if (state->shader.tokens == NULL)
+      goto fail;
+
+   state->draw_data = draw_create_vertex_shader(softpipe->draw, templ);
+   if (state->draw_data == NULL) 
+      goto fail;
+
+   state->max_sampler = state->draw_data->info.file_max[TGSI_FILE_SAMPLER];
+
+   return state;
+
+fail:
+   if (state) {
+      tgsi_free_tokens(state->shader.tokens);
+      FREE( state->draw_data );
+      FREE( state );
+   }
+   return NULL;
+}
+
+
+static void
+softpipe_bind_vs_state(struct pipe_context *pipe, void *vs)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+
+   softpipe->vs = (struct sp_vertex_shader *) vs;
+
+   draw_bind_vertex_shader(softpipe->draw,
+                           (softpipe->vs ? softpipe->vs->draw_data : NULL));
+
+   softpipe->dirty |= SP_NEW_VS;
+}
+
+
+static void
+softpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+
+   struct sp_vertex_shader *state = (struct sp_vertex_shader *) vs;
+
+   draw_delete_vertex_shader(softpipe->draw, state->draw_data);
+   tgsi_free_tokens(state->shader.tokens);
+   FREE( state );
+}
+
+
+static void *
+softpipe_create_gs_state(struct pipe_context *pipe,
+                         const struct pipe_shader_state *templ)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+   struct sp_geometry_shader *state;
+
+   state = CALLOC_STRUCT(sp_geometry_shader);
+   if (state == NULL )
+      goto fail;
+
+   state->shader = *templ;
+
+   if (templ->tokens) {
+      /* debug */
+      if (softpipe->dump_gs)
+         tgsi_dump(templ->tokens, 0);
+
+      /* copy shader tokens, the ones passed in will go away.
+       */
+      state->shader.tokens = tgsi_dup_tokens(templ->tokens);
+      if (state->shader.tokens == NULL)
+         goto fail;
+
+      state->draw_data = draw_create_geometry_shader(softpipe->draw, templ);
+      if (state->draw_data == NULL)
+         goto fail;
+
+      state->max_sampler = state->draw_data->info.file_max[TGSI_FILE_SAMPLER];
+   }
+
+   return state;
+
+fail:
+   if (state) {
+      tgsi_free_tokens(state->shader.tokens);
+      FREE( state->draw_data );
+      FREE( state );
+   }
+   return NULL;
+}
+
+
+static void
+softpipe_bind_gs_state(struct pipe_context *pipe, void *gs)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+
+   softpipe->gs = (struct sp_geometry_shader *)gs;
+
+   draw_bind_geometry_shader(softpipe->draw,
+                             (softpipe->gs ? softpipe->gs->draw_data : NULL));
+
+   softpipe->dirty |= SP_NEW_GS;
+}
+
+
+static void
+softpipe_delete_gs_state(struct pipe_context *pipe, void *gs)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+
+   struct sp_geometry_shader *state =
+      (struct sp_geometry_shader *)gs;
+
+   draw_delete_geometry_shader(softpipe->draw,
+                               (state) ? state->draw_data : 0);
+
+   tgsi_free_tokens(state->shader.tokens);
+   FREE(state);
+}
+
+
+static void
+softpipe_set_constant_buffer(struct pipe_context *pipe,
+                             uint shader, uint index,
+                             struct pipe_constant_buffer *cb)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+   struct pipe_resource *constants = cb ? cb->buffer : NULL;
+   unsigned size;
+   const void *data;
+
+   assert(shader < PIPE_SHADER_TYPES);
+
+   if (cb && cb->user_buffer) {
+      constants = softpipe_user_buffer_create(pipe->screen,
+                                              (void *) cb->user_buffer,
+                                              cb->buffer_size,
+                                              PIPE_BIND_CONSTANT_BUFFER);
+   }
+
+   size = cb ? cb->buffer_size : 0;
+   data = constants ? softpipe_resource_data(constants) : NULL;
+   if (data)
+      data = (const char *) data + cb->buffer_offset;
+
+   draw_flush(softpipe->draw);
+
+   /* note: reference counting */
+   pipe_resource_reference(&softpipe->constants[shader][index], constants);
+
+   if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
+      draw_set_mapped_constant_buffer(softpipe->draw, shader, index, data, size);
+   }
+
+   softpipe->mapped_constants[shader][index] = data;
+   softpipe->const_buffer_size[shader][index] = size;
+
+   softpipe->dirty |= SP_NEW_CONSTANTS;
+
+   if (cb && cb->user_buffer) {
+      pipe_resource_reference(&constants, NULL);
+   }
+}
+
+
+void
+softpipe_init_shader_funcs(struct pipe_context *pipe)
+{
+   pipe->create_fs_state = softpipe_create_fs_state;
+   pipe->bind_fs_state   = softpipe_bind_fs_state;
+   pipe->delete_fs_state = softpipe_delete_fs_state;
+
+   pipe->create_vs_state = softpipe_create_vs_state;
+   pipe->bind_vs_state   = softpipe_bind_vs_state;
+   pipe->delete_vs_state = softpipe_delete_vs_state;
+
+   pipe->create_gs_state = softpipe_create_gs_state;
+   pipe->bind_gs_state   = softpipe_bind_gs_state;
+   pipe->delete_gs_state = softpipe_delete_gs_state;
+
+   pipe->set_constant_buffer = softpipe_set_constant_buffer;
+}