1 files changed, 246 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_context.c b/src/gallium/drivers/svga/svga_context.c
new file mode 100644
index 0000000000..3b30b9e341
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_context.c
@@ -0,0 +1,246 @@
+/**********************************************************
+ * Copyright 2008-2009 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, sublicense, 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 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
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * 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 "svga_cmd.h"
+
+#include "pipe/p_defines.h"
+#include "util/u_inlines.h"
+#include "pipe/p_screen.h"
+#include "util/u_memory.h"
+#include "util/u_bitmask.h"
+#include "util/u_upload_mgr.h"
+
+#include "svga_context.h"
+#include "svga_screen.h"
+#include "svga_resource_texture.h"
+#include "svga_resource_buffer.h"
+#include "svga_resource.h"
+#include "svga_winsys.h"
+#include "svga_swtnl.h"
+#include "svga_draw.h"
+#include "svga_debug.h"
+#include "svga_state.h"
+
+
+static void svga_destroy( struct pipe_context *pipe )
+{
+   struct svga_context *svga = svga_context( pipe );
+   unsigned shader;
+
+   svga_cleanup_framebuffer( svga );
+   svga_cleanup_tss_binding( svga );
+
+   svga_hwtnl_destroy( svga->hwtnl );
+
+   svga_cleanup_vertex_state(svga);
+   
+   svga->swc->destroy(svga->swc);
+   
+   svga_destroy_swtnl( svga );
+
+   u_upload_destroy( svga->upload_vb );
+   u_upload_destroy( svga->upload_ib );
+
+   util_bitmask_destroy( svga->vs_bm );
+   util_bitmask_destroy( svga->fs_bm );
+
+   for(shader = 0; shader < PIPE_SHADER_TYPES; ++shader)
+      pipe_resource_reference( &svga->curr.cb[shader], NULL );
+
+   FREE( svga );
+}
+
+
+
+struct pipe_context *svga_context_create( struct pipe_screen *screen,
+					  void *priv )
+{
+   struct svga_screen *svgascreen = svga_screen(screen);
+   struct svga_context *svga = NULL;
+   enum pipe_error ret;
+
+   svga = CALLOC_STRUCT(svga_context);
+   if (svga == NULL)
+      goto no_svga;
+
+   svga->pipe.winsys = screen->winsys;
+   svga->pipe.screen = screen;
+   svga->pipe.priv = priv;
+   svga->pipe.destroy = svga_destroy;
+   svga->pipe.clear = svga_clear;
+
+   svga->swc = svgascreen->sws->context_create(svgascreen->sws);
+   if(!svga->swc)
+      goto no_swc;
+
+   svga_init_resource_functions(svga);
+   svga_init_blend_functions(svga);
+   svga_init_blit_functions(svga);
+   svga_init_depth_stencil_functions(svga);
+   svga_init_draw_functions(svga);
+   svga_init_flush_functions(svga);
+   svga_init_misc_functions(svga);
+   svga_init_rasterizer_functions(svga);
+   svga_init_sampler_functions(svga);
+   svga_init_fs_functions(svga);
+   svga_init_vs_functions(svga);
+   svga_init_vertex_functions(svga);
+   svga_init_constbuffer_functions(svga);
+   svga_init_query_functions(svga);
+
+
+   /* debug */
+   svga->debug.no_swtnl = debug_get_bool_option("SVGA_NO_SWTNL", FALSE);
+   svga->debug.force_swtnl = debug_get_bool_option("SVGA_FORCE_SWTNL", FALSE);
+   svga->debug.use_min_mipmap = debug_get_bool_option("SVGA_USE_MIN_MIPMAP", FALSE);
+   svga->debug.disable_shader = debug_get_num_option("SVGA_DISABLE_SHADER", ~0);
+
+   if (!svga_init_swtnl(svga))
+      goto no_swtnl;
+
+   svga->fs_bm = util_bitmask_create();
+   if (svga->fs_bm == NULL)
+      goto no_fs_bm;
+
+   svga->vs_bm = util_bitmask_create();
+   if (svga->vs_bm == NULL)
+      goto no_vs_bm;
+
+   svga->upload_ib = u_upload_create( &svga->pipe,
+                                      32 * 1024,
+                                      16,
+                                      PIPE_BIND_INDEX_BUFFER );
+   if (svga->upload_ib == NULL)
+      goto no_upload_ib;
+
+   svga->upload_vb = u_upload_create( &svga->pipe,
+                                      128 * 1024,
+                                      16,
+                                      PIPE_BIND_VERTEX_BUFFER );
+   if (svga->upload_vb == NULL)
+      goto no_upload_vb;
+
+   svga->hwtnl = svga_hwtnl_create( svga,
+                                    svga->upload_ib,
+                                    svga->swc );
+   if (svga->hwtnl == NULL)
+      goto no_hwtnl;
+
+
+   ret = svga_emit_initial_state( svga );
+   if (ret)
+      goto no_state;
+   
+   /* Avoid shortcircuiting state with initial value of zero.
+    */
+   memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
+   memset(&svga->state.hw_clear.framebuffer, 0x0, 
+          sizeof(svga->state.hw_clear.framebuffer));
+
+   memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
+   memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
+   svga->state.hw_draw.num_views = 0;
+
+   svga->dirty = ~0;
+
+   LIST_INITHEAD(&svga->dirty_buffers);
+
+   return &svga->pipe;
+
+no_state:
+   svga_hwtnl_destroy( svga->hwtnl );
+no_hwtnl:
+   u_upload_destroy( svga->upload_vb );
+no_upload_vb:
+   u_upload_destroy( svga->upload_ib );
+no_upload_ib:
+   util_bitmask_destroy( svga->vs_bm );
+no_vs_bm:
+   util_bitmask_destroy( svga->fs_bm );
+no_fs_bm:
+   svga_destroy_swtnl(svga);
+no_swtnl:
+   svga->swc->destroy(svga->swc);
+no_swc:
+   FREE(svga);
+no_svga:
+   return NULL;
+}
+
+
+void svga_context_flush( struct svga_context *svga, 
+                         struct pipe_fence_handle **pfence )
+{
+   struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
+   struct pipe_fence_handle *fence = NULL;
+
+   svga->curr.nr_fbs = 0;
+
+   /* Unmap upload manager buffers: 
+    */
+   u_upload_flush(svga->upload_vb);
+   u_upload_flush(svga->upload_ib);
+
+   /* Ensure that texture dma uploads are processed
+    * before submitting commands.
+    */
+   svga_context_flush_buffers(svga);
+
+   /* Flush pending commands to hardware:
+    */
+   svga->swc->flush(svga->swc, &fence);
+
+   svga_screen_cache_flush(svgascreen, fence);
+
+   if (SVGA_DEBUG & DEBUG_SYNC) {
+      if (fence)
+         svga->pipe.screen->fence_finish( svga->pipe.screen, fence, 0);
+   }
+
+   if(pfence)
+      *pfence = fence;
+   else
+      svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
+}
+
+
+void svga_hwtnl_flush_retry( struct svga_context *svga )
+{
+   enum pipe_error ret = PIPE_OK;
+
+   ret = svga_hwtnl_flush( svga->hwtnl );
+   if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
+      svga_context_flush( svga, NULL );
+      ret = svga_hwtnl_flush( svga->hwtnl );
+   }
+
+   assert(ret == 0);
+}
+
+struct svga_winsys_context *
+svga_winsys_context( struct pipe_context *pipe )
+{
+   return svga_context( pipe )->swc;
+}