svga: Add svga driver

1 files changed, 370 insertions, 0 deletions

diff --git a/src/gallium/drivers/svga/svga_draw.c b/src/gallium/drivers/svga/svga_draw.c
new file mode 100644
index 0000000000..1b371cecc6
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_draw.c
@@ -0,0 +1,370 @@
+/**********************************************************
+ * 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 "pipe/p_compiler.h"
+#include "pipe/p_inlines.h"
+#include "pipe/p_defines.h"
+#include "util/u_memory.h"
+#include "util/u_math.h"
+
+#include "svga_draw.h"
+#include "svga_draw_private.h"
+#include "svga_screen.h"
+#include "svga_screen_buffer.h"
+#include "svga_winsys.h"
+#include "svga_cmd.h"
+
+
+struct svga_hwtnl *svga_hwtnl_create( struct svga_context *svga,
+                                      struct u_upload_mgr *upload_ib,
+                                      struct svga_winsys_context *swc )
+{
+   struct svga_hwtnl *hwtnl = CALLOC_STRUCT(svga_hwtnl);
+   if (hwtnl == NULL)
+      goto fail;
+
+   hwtnl->svga = svga;
+   hwtnl->upload_ib = upload_ib;
+   
+   hwtnl->cmd.swc = swc;
+
+   return hwtnl;
+
+fail:
+   return NULL;
+}
+
+void svga_hwtnl_destroy( struct svga_hwtnl *hwtnl )
+{
+   int i, j;
+
+   for (i = 0; i < PIPE_PRIM_MAX; i++) {
+      for (j = 0; j < IDX_CACHE_MAX; j++) {
+         pipe_buffer_reference( &hwtnl->index_cache[i][j].buffer,
+                                NULL );
+      }
+   }
+
+   for (i = 0; i < hwtnl->cmd.vdecl_count; i++)
+      pipe_buffer_reference(&hwtnl->cmd.vdecl_vb[i], NULL);
+
+   for (i = 0; i < hwtnl->cmd.prim_count; i++)
+      pipe_buffer_reference(&hwtnl->cmd.prim_ib[i], NULL);
+      
+
+   FREE(hwtnl);
+}
+
+
+void svga_hwtnl_set_flatshade( struct svga_hwtnl *hwtnl,
+                               boolean flatshade,
+                               boolean flatshade_first )
+{
+   hwtnl->hw_pv = PV_FIRST;
+   hwtnl->api_pv = (flatshade && !flatshade_first) ? PV_LAST : PV_FIRST;
+}                               
+
+void svga_hwtnl_set_unfilled( struct svga_hwtnl *hwtnl,
+                              unsigned mode )
+{
+   hwtnl->api_fillmode = mode;
+}                               
+
+void svga_hwtnl_reset_vdecl( struct svga_hwtnl *hwtnl,
+                             unsigned count )
+{
+   unsigned i;
+
+   assert(hwtnl->cmd.prim_count == 0);
+
+   for (i = count; i < hwtnl->cmd.vdecl_count; i++) {
+      pipe_buffer_reference(&hwtnl->cmd.vdecl_vb[i],
+                            NULL);
+   }
+
+   hwtnl->cmd.vdecl_count = count;
+}
+
+
+void svga_hwtnl_vdecl( struct svga_hwtnl *hwtnl,
+                          unsigned i,
+                          const SVGA3dVertexDecl *decl,
+                          struct pipe_buffer *vb)
+{
+   assert(hwtnl->cmd.prim_count == 0);
+
+   assert( i < hwtnl->cmd.vdecl_count );
+
+   hwtnl->cmd.vdecl[i] = *decl;
+
+   pipe_buffer_reference(&hwtnl->cmd.vdecl_vb[i],
+                         vb);   
+}
+
+
+
+enum pipe_error
+svga_hwtnl_flush( struct svga_hwtnl *hwtnl )
+{
+   struct svga_winsys_context *swc = hwtnl->cmd.swc;
+   struct svga_context *svga = hwtnl->svga;
+   enum pipe_error ret;
+
+   if (hwtnl->cmd.prim_count) {
+      struct svga_winsys_surface *vb_handle[SVGA3D_INPUTREG_MAX];
+      struct svga_winsys_surface *ib_handle[QSZ];
+      struct svga_winsys_surface *handle;
+      SVGA3dVertexDecl *vdecl;
+      SVGA3dPrimitiveRange *prim;
+      unsigned i;
+
+      for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
+         handle = svga_buffer_handle(svga, hwtnl->cmd.vdecl_vb[i]);
+         if (handle == NULL)
+            return PIPE_ERROR_OUT_OF_MEMORY;
+
+         vb_handle[i] = handle;
+      }
+
+      for (i = 0; i < hwtnl->cmd.prim_count; i++) {
+         if (hwtnl->cmd.prim_ib[i]) {
+            handle = svga_buffer_handle(svga, hwtnl->cmd.prim_ib[i]);
+            if (handle == NULL)
+               return PIPE_ERROR_OUT_OF_MEMORY;
+         }
+         else
+            handle = NULL;
+
+         ib_handle[i] = handle;
+      }
+
+      ret = SVGA3D_BeginDrawPrimitives(swc, 
+                                       &vdecl, 
+                                       hwtnl->cmd.vdecl_count, 
+                                       &prim, 
+                                       hwtnl->cmd.prim_count);
+      if (ret != PIPE_OK) 
+         return ret;
+
+      
+      memcpy( vdecl,
+              hwtnl->cmd.vdecl,
+              hwtnl->cmd.vdecl_count * sizeof hwtnl->cmd.vdecl[0]);
+
+      for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
+         /* Given rangeHint is considered to be relative to indexBias, and 
+          * indexBias varies per primitive, we cannot accurately supply an 
+          * rangeHint when emitting more than one primitive per draw command.
+          */
+         if (hwtnl->cmd.prim_count == 1) {
+            vdecl[i].rangeHint.first = hwtnl->cmd.min_index[0];
+            vdecl[i].rangeHint.last = hwtnl->cmd.max_index[0] + 1;
+         }
+         else {
+            vdecl[i].rangeHint.first = 0;
+            vdecl[i].rangeHint.last = 0;
+         }
+
+         swc->surface_relocation(swc,
+                                 &vdecl[i].array.surfaceId,
+                                 vb_handle[i],
+                                 PIPE_BUFFER_USAGE_GPU_READ);
+      }
+
+      memcpy( prim,
+              hwtnl->cmd.prim,
+              hwtnl->cmd.prim_count * sizeof hwtnl->cmd.prim[0]);
+
+      for (i = 0; i < hwtnl->cmd.prim_count; i++) {
+         swc->surface_relocation(swc,
+                                 &prim[i].indexArray.surfaceId,
+                                 ib_handle[i],
+                                 PIPE_BUFFER_USAGE_GPU_READ);
+         pipe_buffer_reference(&hwtnl->cmd.prim_ib[i], NULL);
+      }
+      
+      SVGA_FIFOCommitAll( swc );
+      hwtnl->cmd.prim_count = 0;
+   }
+
+   return PIPE_OK;
+}
+
+
+
+
+
+/***********************************************************************
+ * Internal functions:
+ */
+
+enum pipe_error svga_hwtnl_prim( struct svga_hwtnl *hwtnl,
+                                 const SVGA3dPrimitiveRange *range,
+                                 unsigned min_index,
+                                 unsigned max_index,
+                                 struct pipe_buffer *ib )
+{
+   int ret = PIPE_OK;
+
+#ifdef DEBUG
+   {
+      unsigned i;
+      for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
+         struct pipe_buffer *vb = hwtnl->cmd.vdecl_vb[i];
+         unsigned size = vb ? vb->size : 0;
+         unsigned offset = hwtnl->cmd.vdecl[i].array.offset;
+         unsigned stride = hwtnl->cmd.vdecl[i].array.stride;
+         unsigned index_bias = range->indexBias;
+         unsigned width;
+
+         assert(vb);
+         assert(size);
+         assert(offset < size);
+         assert(index_bias >= 0);
+         assert(min_index <= max_index);
+         assert(offset + index_bias*stride < size);
+         assert(offset + (index_bias + min_index)*stride < size);
+
+         switch (hwtnl->cmd.vdecl[i].identity.type) {
+         case SVGA3D_DECLTYPE_FLOAT1:
+            width = 4;
+            break;
+         case SVGA3D_DECLTYPE_FLOAT2:
+            width = 4*2;
+            break;
+         case SVGA3D_DECLTYPE_FLOAT3:
+            width = 4*3;
+            break;
+         case SVGA3D_DECLTYPE_FLOAT4:
+            width = 4*4;
+            break;
+         case SVGA3D_DECLTYPE_D3DCOLOR:
+            width = 4;
+            break;
+         case SVGA3D_DECLTYPE_UBYTE4:
+            width = 1*4;
+            break;
+         case SVGA3D_DECLTYPE_SHORT2:
+            width = 2*2;
+            break;
+         case SVGA3D_DECLTYPE_SHORT4:
+            width = 2*4;
+            break;
+         case SVGA3D_DECLTYPE_UBYTE4N:
+            width = 1*4;
+            break;
+         case SVGA3D_DECLTYPE_SHORT2N:
+            width = 2*2;
+            break;
+         case SVGA3D_DECLTYPE_SHORT4N:
+            width = 2*4;
+            break;
+         case SVGA3D_DECLTYPE_USHORT2N:
+            width = 2*2;
+            break;
+         case SVGA3D_DECLTYPE_USHORT4N:
+            width = 2*4;
+            break;
+         case SVGA3D_DECLTYPE_UDEC3:
+            width = 4;
+            break;
+         case SVGA3D_DECLTYPE_DEC3N:
+            width = 4;
+            break;
+         case SVGA3D_DECLTYPE_FLOAT16_2:
+            width = 2*2;
+            break;
+         case SVGA3D_DECLTYPE_FLOAT16_4:
+            width = 2*4;
+            break;
+         default:
+            assert(0);
+            width = 0;
+            break;
+         }
+
+         assert(!stride || width <= stride);
+         assert(offset + (index_bias + max_index)*stride + width <= size);
+      }
+
+      assert(range->indexWidth == range->indexArray.stride);
+
+      if(ib) {
+         unsigned size = ib->size;
+         unsigned offset = range->indexArray.offset;
+         unsigned stride = range->indexArray.stride;
+         unsigned count;
+
+         assert(size);
+         assert(offset < size);
+         assert(stride);
+
+         switch (range->primType) {
+         case SVGA3D_PRIMITIVE_POINTLIST:
+            count = range->primitiveCount;
+            break;
+         case SVGA3D_PRIMITIVE_LINELIST:
+            count = range->primitiveCount * 2;
+            break;
+         case SVGA3D_PRIMITIVE_LINESTRIP:
+            count = range->primitiveCount + 1;
+            break;
+         case SVGA3D_PRIMITIVE_TRIANGLELIST:
+            count = range->primitiveCount * 3;
+            break;
+         case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
+            count = range->primitiveCount + 2;
+            break;
+         case SVGA3D_PRIMITIVE_TRIANGLEFAN:
+            count = range->primitiveCount + 2;
+            break;
+         default:
+            assert(0);
+            count = 0;
+            break;
+         }
+
+         assert(offset + count*stride <= size);
+      }
+   }
+#endif
+
+   if (hwtnl->cmd.prim_count+1 >= QSZ) {
+      ret = svga_hwtnl_flush( hwtnl );
+      if (ret != PIPE_OK)
+         return ret;
+   }
+   
+   /* min/max indices are relative to bias */
+   hwtnl->cmd.min_index[hwtnl->cmd.prim_count] = min_index;
+   hwtnl->cmd.max_index[hwtnl->cmd.prim_count] = max_index;
+
+   hwtnl->cmd.prim[hwtnl->cmd.prim_count] = *range;
+
+   pipe_buffer_reference(&hwtnl->cmd.prim_ib[hwtnl->cmd.prim_count], ib);
+   hwtnl->cmd.prim_count++;
+
+   return ret;
+}