import Mesa 11.0.6

1 files changed, 320 insertions, 0 deletions

diff --git a/lib/mesa/src/gallium/drivers/softpipe/sp_context.c b/lib/mesa/src/gallium/drivers/softpipe/sp_context.c
new file mode 100644
index 000000000..34d2b80f1
--- /dev/null
+++ b/lib/mesa/src/gallium/drivers/softpipe/sp_context.c
@@ -0,0 +1,320 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 VMware, Inc.
+ * All Rights Reserved.
+ * Copyright 2008 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.
+ * 
+ **************************************************************************/
+
+/* Author:
+ *    Keith Whitwell <keithw@vmware.com>
+ */
+
+#include "draw/draw_context.h"
+#include "draw/draw_vbuf.h"
+#include "pipe/p_defines.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "util/u_pstipple.h"
+#include "util/u_inlines.h"
+#include "tgsi/tgsi_exec.h"
+#include "sp_clear.h"
+#include "sp_context.h"
+#include "sp_flush.h"
+#include "sp_prim_vbuf.h"
+#include "sp_state.h"
+#include "sp_surface.h"
+#include "sp_tile_cache.h"
+#include "sp_tex_tile_cache.h"
+#include "sp_texture.h"
+#include "sp_query.h"
+#include "sp_screen.h"
+#include "sp_tex_sample.h"
+
+
+static void
+softpipe_destroy( struct pipe_context *pipe )
+{
+   struct softpipe_context *softpipe = softpipe_context( pipe );
+   uint i, sh;
+
+#if DO_PSTIPPLE_IN_HELPER_MODULE
+   if (softpipe->pstipple.sampler)
+      pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
+
+   pipe_resource_reference(&softpipe->pstipple.texture, NULL);
+   pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
+#endif
+
+   if (softpipe->blitter) {
+      util_blitter_destroy(softpipe->blitter);
+   }
+
+   if (softpipe->draw)
+      draw_destroy( softpipe->draw );
+
+   if (softpipe->quad.shade)
+      softpipe->quad.shade->destroy( softpipe->quad.shade );
+
+   if (softpipe->quad.depth_test)
+      softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
+
+   if (softpipe->quad.blend)
+      softpipe->quad.blend->destroy( softpipe->quad.blend );
+
+   if (softpipe->quad.pstipple)
+      softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
+
+   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
+      sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
+      pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
+   }
+
+   sp_destroy_tile_cache(softpipe->zsbuf_cache);
+   pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
+
+   for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
+      for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
+         sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
+         pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
+      }
+   }
+
+   for (sh = 0; sh < Elements(softpipe->constants); sh++) {
+      for (i = 0; i < Elements(softpipe->constants[0]); i++) {
+         if (softpipe->constants[sh][i]) {
+            pipe_resource_reference(&softpipe->constants[sh][i], NULL);
+         }
+      }
+   }
+
+   for (i = 0; i < softpipe->num_vertex_buffers; i++) {
+      pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
+   }
+
+   tgsi_exec_machine_destroy(softpipe->fs_machine);
+
+   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
+      FREE(softpipe->tgsi.sampler[i]);
+   }
+
+   FREE( softpipe );
+}
+
+
+/**
+ * if (the texture is being used as a framebuffer surface)
+ *    return SP_REFERENCED_FOR_WRITE
+ * else if (the texture is a bound texture source)
+ *    return SP_REFERENCED_FOR_READ
+ * else
+ *    return SP_UNREFERENCED
+ */
+unsigned int
+softpipe_is_resource_referenced( struct pipe_context *pipe,
+                                 struct pipe_resource *texture,
+                                 unsigned level, int layer)
+{
+   struct softpipe_context *softpipe = softpipe_context( pipe );
+   unsigned i, sh;
+
+   if (texture->target == PIPE_BUFFER)
+      return SP_UNREFERENCED;
+
+   /* check if any of the bound drawing surfaces are this texture */
+   if (softpipe->dirty_render_cache) {
+      for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
+         if (softpipe->framebuffer.cbufs[i] && 
+             softpipe->framebuffer.cbufs[i]->texture == texture) {
+            return SP_REFERENCED_FOR_WRITE;
+         }
+      }
+      if (softpipe->framebuffer.zsbuf && 
+          softpipe->framebuffer.zsbuf->texture == texture) {
+         return SP_REFERENCED_FOR_WRITE;
+      }
+   }
+   
+   /* check if any of the tex_cache textures are this texture */
+   for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
+      for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
+         if (softpipe->tex_cache[sh][i] &&
+             softpipe->tex_cache[sh][i]->texture == texture)
+            return SP_REFERENCED_FOR_READ;
+      }
+   }
+
+   return SP_UNREFERENCED;
+}
+
+
+
+
+static void
+softpipe_render_condition( struct pipe_context *pipe,
+                           struct pipe_query *query,
+                           boolean condition,
+                           uint mode )
+{
+   struct softpipe_context *softpipe = softpipe_context( pipe );
+
+   softpipe->render_cond_query = query;
+   softpipe->render_cond_mode = mode;
+   softpipe->render_cond_cond = condition;
+}
+
+
+
+struct pipe_context *
+softpipe_create_context( struct pipe_screen *screen,
+			 void *priv )
+{
+   struct softpipe_screen *sp_screen = softpipe_screen(screen);
+   struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
+   uint i, sh;
+
+   util_init_math();
+
+   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
+      softpipe->tgsi.sampler[i] = sp_create_tgsi_sampler();
+   }
+
+   softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
+   softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
+
+   softpipe->pipe.screen = screen;
+   softpipe->pipe.destroy = softpipe_destroy;
+   softpipe->pipe.priv = priv;
+
+   /* state setters */
+   softpipe_init_blend_funcs(&softpipe->pipe);
+   softpipe_init_clip_funcs(&softpipe->pipe);
+   softpipe_init_query_funcs( softpipe );
+   softpipe_init_rasterizer_funcs(&softpipe->pipe);
+   softpipe_init_sampler_funcs(&softpipe->pipe);
+   softpipe_init_shader_funcs(&softpipe->pipe);
+   softpipe_init_streamout_funcs(&softpipe->pipe);
+   softpipe_init_texture_funcs( &softpipe->pipe );
+   softpipe_init_vertex_funcs(&softpipe->pipe);
+
+   softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
+
+   softpipe->pipe.draw_vbo = softpipe_draw_vbo;
+
+   softpipe->pipe.clear = softpipe_clear;
+   softpipe->pipe.flush = softpipe_flush_wrapped;
+
+   softpipe->pipe.render_condition = softpipe_render_condition;
+   
+   /*
+    * Alloc caches for accessing drawing surfaces and textures.
+    * Must be before quad stage setup!
+    */
+   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
+      softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
+   softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
+
+   /* Allocate texture caches */
+   for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
+      for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
+         softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
+         if (!softpipe->tex_cache[sh][i])
+            goto fail;
+      }
+   }
+
+   softpipe->fs_machine = tgsi_exec_machine_create();
+
+   /* setup quad rendering stages */
+   softpipe->quad.shade = sp_quad_shade_stage(softpipe);
+   softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
+   softpipe->quad.blend = sp_quad_blend_stage(softpipe);
+   softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
+
+
+   /*
+    * Create drawing context and plug our rendering stage into it.
+    */
+   if (sp_screen->use_llvm)
+      softpipe->draw = draw_create(&softpipe->pipe);
+   else
+      softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
+   if (!softpipe->draw) 
+      goto fail;
+
+   draw_texture_sampler(softpipe->draw,
+                        PIPE_SHADER_VERTEX,
+                        (struct tgsi_sampler *)
+                           softpipe->tgsi.sampler[PIPE_SHADER_VERTEX]);
+
+   draw_texture_sampler(softpipe->draw,
+                        PIPE_SHADER_GEOMETRY,
+                        (struct tgsi_sampler *)
+                           softpipe->tgsi.sampler[PIPE_SHADER_GEOMETRY]);
+
+   if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
+      softpipe->no_rast = TRUE;
+
+   softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
+   if (!softpipe->vbuf_backend)
+      goto fail;
+
+   softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
+   if (!softpipe->vbuf)
+      goto fail;
+
+   draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
+   draw_set_render(softpipe->draw, softpipe->vbuf_backend);
+
+   softpipe->blitter = util_blitter_create(&softpipe->pipe);
+   if (!softpipe->blitter) {
+      goto fail;
+   }
+
+   /* must be done before installing Draw stages */
+   util_blitter_cache_all_shaders(softpipe->blitter);
+
+   /* plug in AA line/point stages */
+   draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
+   draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
+
+   /* Do polygon stipple w/ texture map + frag prog? */
+#if DO_PSTIPPLE_IN_DRAW_MODULE
+   draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
+#endif
+
+   draw_wide_point_sprites(softpipe->draw, TRUE);
+
+   sp_init_surface_functions(softpipe);
+
+#if DO_PSTIPPLE_IN_HELPER_MODULE
+   /* create the polgon stipple sampler */
+   softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
+#endif
+
+   return &softpipe->pipe;
+
+ fail:
+   softpipe_destroy(&softpipe->pipe);
+   return NULL;
+}