1 files changed, 350 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
new file mode 100644
index 0000000000..508d522f9a
--- /dev/null
+++ b/src/mesa/state_tracker/st_context.c
@@ -0,0 +1,350 @@
+/**************************************************************************
+ * 
+ * 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.
+ * 
+ **************************************************************************/
+
+#include "main/imports.h"
+#include "main/context.h"
+#include "main/extensions.h"
+#include "main/matrix.h"
+#include "main/buffers.h"
+#include "main/scissor.h"
+#include "main/viewport.h"
+#include "vbo/vbo.h"
+#include "shader/shader_api.h"
+#include "glapi/glapi.h"
+#include "st_public.h"
+#include "st_context.h"
+#include "st_cb_accum.h"
+#include "st_cb_bitmap.h"
+#include "st_cb_blit.h"
+#include "st_cb_bufferobjects.h"
+#include "st_cb_clear.h"
+#if FEATURE_drawpix
+#include "st_cb_drawpixels.h"
+#include "st_cb_rasterpos.h"
+#endif
+#ifdef FEATURE_OES_draw_texture
+#include "st_cb_drawtex.h"
+#endif
+#include "st_cb_fbo.h"
+#include "st_cb_get.h"
+#if FEATURE_feedback
+#include "st_cb_feedback.h"
+#endif
+#include "st_cb_program.h"
+#include "st_cb_queryobj.h"
+#include "st_cb_readpixels.h"
+#include "st_cb_texture.h"
+#include "st_cb_flush.h"
+#include "st_cb_strings.h"
+#include "st_cb_viewport.h"
+#include "st_atom.h"
+#include "st_draw.h"
+#include "st_extensions.h"
+#include "st_gen_mipmap.h"
+#include "st_program.h"
+#include "pipe/p_context.h"
+#include "draw/draw_context.h"
+#include "cso_cache/cso_cache.h"
+#include "cso_cache/cso_context.h"
+
+
+/**
+ * Called via ctx->Driver.UpdateState()
+ */
+void st_invalidate_state(GLcontext * ctx, GLuint new_state)
+{
+   struct st_context *st = st_context(ctx);
+
+   st->dirty.mesa |= new_state;
+   st->dirty.st |= ST_NEW_MESA;
+
+   /* This is the only core Mesa module we depend upon.
+    * No longer use swrast, swsetup, tnl.
+    */
+   _vbo_InvalidateState(ctx, new_state);
+}
+
+
+/**
+ * Check for multisample env var override.
+ */
+int
+st_get_msaa(void)
+{
+   const char *msaa = _mesa_getenv("__GL_FSAA_MODE");
+   if (msaa)
+      return atoi(msaa);
+   return 0;
+}
+
+
+static struct st_context *
+st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
+{
+   uint i;
+   struct st_context *st = ST_CALLOC_STRUCT( st_context );
+   
+   ctx->st = st;
+
+   st->ctx = ctx;
+   st->pipe = pipe;
+
+   /* state tracker needs the VBO module */
+   _vbo_CreateContext(ctx);
+
+#if FEATURE_feedback || FEATURE_drawpix
+   st->draw = draw_create(); /* for selection/feedback */
+
+   /* Disable draw options that might convert points/lines to tris, etc.
+    * as that would foul-up feedback/selection mode.
+    */
+   draw_wide_line_threshold(st->draw, 1000.0f);
+   draw_wide_point_threshold(st->draw, 1000.0f);
+   draw_enable_line_stipple(st->draw, FALSE);
+   draw_enable_point_sprites(st->draw, FALSE);
+#endif
+
+   st->dirty.mesa = ~0;
+   st->dirty.st = ~0;
+
+   st->cso_context = cso_create_context(pipe);
+
+   st_init_atoms( st );
+   st_init_bitmap(st);
+   st_init_clear(st);
+   st_init_draw( st );
+   st_init_generate_mipmap(st);
+   st_init_blit(st);
+
+   for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
+      st->state.sampler_list[i] = &st->state.samplers[i];
+
+   /* we want all vertex data to be placed in buffer objects */
+   vbo_use_buffer_objects(ctx);
+
+   /* Need these flags:
+    */
+   st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
+
+   st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
+
+   st->pixel_xfer.cache = _mesa_new_program_cache();
+
+   st->force_msaa = st_get_msaa();
+
+   /* GL limits and extensions */
+   st_init_limits(st);
+   st_init_extensions(st);
+
+   return st;
+}
+
+
+struct st_context *st_create_context(struct pipe_context *pipe,
+                                     const __GLcontextModes *visual,
+                                     struct st_context *share)
+{
+   GLcontext *ctx;
+   GLcontext *shareCtx = share ? share->ctx : NULL;
+   struct dd_function_table funcs;
+
+   memset(&funcs, 0, sizeof(funcs));
+   st_init_driver_functions(&funcs);
+
+   ctx = _mesa_create_context(visual, shareCtx, &funcs, NULL);
+
+   /* XXX: need a capability bit in gallium to query if the pipe
+    * driver prefers DP4 or MUL/MAD for vertex transformation.
+    */
+   if (debug_get_bool_option("MESA_MVP_DP4", FALSE))
+      _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
+
+   return st_create_context_priv(ctx, pipe);
+}
+
+
+static void st_destroy_context_priv( struct st_context *st )
+{
+   uint i;
+
+#if FEATURE_feedback || FEATURE_drawpix
+   draw_destroy(st->draw);
+#endif
+   st_destroy_atoms( st );
+   st_destroy_draw( st );
+   st_destroy_generate_mipmap(st);
+#if FEATURE_EXT_framebuffer_blit
+   st_destroy_blit(st);
+#endif
+   st_destroy_clear(st);
+#if FEATURE_drawpix
+   st_destroy_bitmap(st);
+   st_destroy_drawpix(st);
+#endif
+#ifdef FEATURE_OES_draw_texture
+   st_destroy_drawtex(st);
+#endif
+
+   for (i = 0; i < Elements(st->state.sampler_texture); i++) {
+      pipe_texture_reference(&st->state.sampler_texture[i], NULL);
+   }
+
+   for (i = 0; i < Elements(st->state.constants); i++) {
+      if (st->state.constants[i].buffer) {
+         pipe_buffer_reference(&st->state.constants[i].buffer, NULL);
+      }
+   }
+
+   if (st->default_texture) {
+      st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
+      st->default_texture = NULL;
+   }
+
+   _mesa_free( st );
+}
+
+ 
+void st_destroy_context( struct st_context *st )
+{
+   struct pipe_context *pipe = st->pipe;
+   struct cso_context *cso = st->cso_context;
+   GLcontext *ctx = st->ctx;
+   GLuint i;
+
+   /* need to unbind and destroy CSO objects before anything else */
+   cso_release_all(st->cso_context);
+
+   st_reference_fragprog(st, &st->fp, NULL);
+   st_reference_vertprog(st, &st->vp, NULL);
+
+   /* release framebuffer surfaces */
+   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
+      pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
+   }
+   pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
+
+   _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
+
+   _vbo_DestroyContext(st->ctx);
+
+   _mesa_free_context_data(ctx);
+
+   st_destroy_context_priv(st);
+
+   cso_destroy_context(cso);
+
+   pipe->destroy( pipe );
+
+   _mesa_free(ctx);
+}
+
+
+GLboolean
+st_make_current(struct st_context *st,
+                struct st_framebuffer *draw,
+                struct st_framebuffer *read)
+{
+   /* Call this periodically to detect when the user has begun using
+    * GL rendering from multiple threads.
+    */
+   _glapi_check_multithread();
+
+   if (st) {
+      if (!_mesa_make_current(st->ctx, &draw->Base, &read->Base))
+         return GL_FALSE;
+
+      _mesa_check_init_viewport(st->ctx, draw->InitWidth, draw->InitHeight);
+
+      return GL_TRUE;
+   }
+   else {
+      return _mesa_make_current(NULL, NULL, NULL);
+   }
+}
+
+struct st_context *st_get_current(void)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   return (ctx == NULL) ? NULL : ctx->st;
+}
+
+void st_copy_context_state(struct st_context *dst,
+                           struct st_context *src,
+                           uint mask)
+{
+   _mesa_copy_context(dst->ctx, src->ctx, mask);
+}
+
+
+
+st_proc st_get_proc_address(const char *procname)
+{
+   return (st_proc) _glapi_get_proc_address(procname);
+}
+
+
+
+void st_init_driver_functions(struct dd_function_table *functions)
+{
+   _mesa_init_glsl_driver_functions(functions);
+
+#if FEATURE_accum
+   st_init_accum_functions(functions);
+#endif
+#if FEATURE_EXT_framebuffer_blit
+   st_init_blit_functions(functions);
+#endif
+   st_init_bufferobject_functions(functions);
+   st_init_clear_functions(functions);
+#if FEATURE_drawpix
+   st_init_bitmap_functions(functions);
+   st_init_drawpixels_functions(functions);
+   st_init_rasterpos_functions(functions);
+#endif
+
+#if FEATURE_OES_draw_texture
+   st_init_drawtex_functions(functions);
+#endif
+
+   st_init_fbo_functions(functions);
+   st_init_get_functions(functions);
+#if FEATURE_feedback
+   st_init_feedback_functions(functions);
+#endif
+   st_init_program_functions(functions);
+#if FEATURE_queryobj
+   st_init_query_functions(functions);
+#endif
+   st_init_readpixels_functions(functions);
+   st_init_texture_functions(functions);
+   st_init_flush_functions(functions);
+   st_init_string_functions(functions);
+   st_init_viewport_functions(functions);
+
+   functions->UpdateState = st_invalidate_state;
+}