import Mesa 11.0.6

1 files changed, 177 insertions, 0 deletions

diff --git a/lib/mesa/src/gallium/drivers/svga/svga_draw_private.h b/lib/mesa/src/gallium/drivers/svga/svga_draw_private.h
new file mode 100644
index 000000000..9ab87e825
--- /dev/null
+++ b/lib/mesa/src/gallium/drivers/svga/svga_draw_private.h
@@ -0,0 +1,177 @@
+/**********************************************************
+ * 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.
+ *
+ **********************************************************/
+
+#ifndef SVGA_DRAW_H_
+#define SVGA_DRAW_H_
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_defines.h"
+#include "indices/u_indices.h"
+#include "svga_hw_reg.h"
+#include "svga3d_shaderdefs.h"
+
+struct svga_context;
+struct u_upload_mgr;
+
+/**
+ * Mask indicating which types of gallium primitives are actually
+ * handled by the svga device.  Other types will be converted to
+ * these types by the index/translation code.
+ */
+static const unsigned svga_hw_prims = 
+   ((1 << PIPE_PRIM_POINTS) |
+    (1 << PIPE_PRIM_LINES) |
+    (1 << PIPE_PRIM_LINE_STRIP) |
+    (1 << PIPE_PRIM_TRIANGLES) |
+    (1 << PIPE_PRIM_TRIANGLE_STRIP) |
+    (1 << PIPE_PRIM_TRIANGLE_FAN));
+
+
+/**
+ * Translate a gallium PIPE_PRIM_x value to an SVGA3D_PRIMITIVE_x value.
+ * Also, compute the number of primitives that'll be drawn given a
+ * vertex count.
+ * Note that this function doesn't have to handle PIPE_PRIM_LINE_LOOP,
+ * PIPE_PRIM_QUADS, PIPE_PRIM_QUAD_STRIP or PIPE_PRIM_POLYGON.  We convert
+ * those to other types of primitives with index/translation code.
+ */
+static inline unsigned
+svga_translate_prim(unsigned mode, unsigned vcount,unsigned *prim_count)
+{
+   switch (mode) {
+   case PIPE_PRIM_POINTS:
+      *prim_count = vcount;
+      return SVGA3D_PRIMITIVE_POINTLIST;
+
+   case PIPE_PRIM_LINES:
+      *prim_count = vcount / 2;
+      return SVGA3D_PRIMITIVE_LINELIST; 
+
+   case PIPE_PRIM_LINE_STRIP:
+      *prim_count = vcount - 1;
+      return SVGA3D_PRIMITIVE_LINESTRIP; 
+
+   case PIPE_PRIM_TRIANGLES:
+      *prim_count = vcount / 3;
+      return SVGA3D_PRIMITIVE_TRIANGLELIST; 
+
+   case PIPE_PRIM_TRIANGLE_STRIP:
+      *prim_count = vcount - 2;
+      return SVGA3D_PRIMITIVE_TRIANGLESTRIP; 
+
+   case PIPE_PRIM_TRIANGLE_FAN:
+      *prim_count = vcount - 2;
+      return SVGA3D_PRIMITIVE_TRIANGLEFAN; 
+
+   default:
+      assert(0);
+      *prim_count = 0;
+      return 0;
+   }
+}
+
+
+struct index_cache {
+   u_generate_func generate;
+   unsigned gen_nr;
+
+   /* If non-null, this buffer is filled by calling 
+    *   generate(nr, map(buffer))
+    */
+   struct pipe_resource *buffer;
+};
+
+
+/** Max number of primitives per draw call */
+#define QSZ SVGA3D_MAX_DRAW_PRIMITIVE_RANGES
+
+struct draw_cmd {
+   struct svga_winsys_context *swc;
+
+   SVGA3dVertexDecl vdecl[SVGA3D_INPUTREG_MAX];
+   struct pipe_resource *vdecl_vb[SVGA3D_INPUTREG_MAX];
+   unsigned vdecl_count;
+
+   SVGA3dPrimitiveRange prim[QSZ];
+   struct pipe_resource *prim_ib[QSZ];
+   unsigned prim_count;
+   unsigned min_index[QSZ];
+   unsigned max_index[QSZ];
+};
+
+#define IDX_CACHE_MAX  8
+
+struct svga_hwtnl {
+   struct svga_context *svga;
+   struct u_upload_mgr *upload_ib;
+
+   /* Additional negative index bias due to partial buffer uploads
+    * This is compensated for in the offset associated with all
+    * vertex buffers.
+    */
+
+   int index_bias;
+   
+   /* Flatshade information:
+    */
+   unsigned api_pv;
+   unsigned hw_pv;
+   unsigned api_fillmode;
+
+   /* Cache the results of running a particular generate func on each
+    * primitive type.
+    */
+   struct index_cache index_cache[PIPE_PRIM_MAX][IDX_CACHE_MAX];
+
+   /* Try to build the maximal draw command packet before emitting:
+    */
+   struct draw_cmd cmd;
+};
+
+
+
+/***********************************************************************
+ * Internal functions
+ */
+enum pipe_error 
+svga_hwtnl_prim( struct svga_hwtnl *hwtnl,
+                 const SVGA3dPrimitiveRange *range,
+                 unsigned min_index,
+                 unsigned max_index,
+                 struct pipe_resource *ib );
+
+enum pipe_error
+svga_hwtnl_simple_draw_range_elements( struct svga_hwtnl *hwtnl,
+                                       struct pipe_resource *indexBuffer,
+                                       unsigned index_size,
+                                       int index_bias,
+                                       unsigned min_index,
+                                       unsigned max_index,
+                                       unsigned prim, 
+                                       unsigned start,
+                                       unsigned count );
+
+
+#endif