1 files changed, 168 insertions, 169 deletions
diff --git a/mesalib/src/mesa/vbo/vbo_split.c b/mesalib/src/mesa/vbo/vbo_split.c
index e28f9afcf..c933a3f9a 100644
--- a/mesalib/src/mesa/vbo/vbo_split.c
+++ b/mesalib/src/mesa/vbo/vbo_split.c
@@ -1,169 +1,168 @@
-
-/*
- * Mesa 3-D graphics library
- * Version:  6.5
- *
- * Copyright (C) 1999-2006  Brian Paul   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
- * BRIAN PAUL 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.
- *
- * Authors:
- *    Keith Whitwell <keith@tungstengraphics.com>
- */
-
-/* Deal with hardware and/or swtnl maximums:
- * - maximum number of vertices in buffer
- * - maximum number of elements (maybe zero)
- *
- * The maximums may vary with opengl state (eg if a larger hardware
- * vertex is required in this state, the maximum number of vertices
- * may be smaller than in another state).
- *
- * We want buffer splitting to be a convenience function for the code
- * actually drawing the primitives rather than a system-wide maximum,
- * otherwise it is hard to avoid pessimism.  
- *
- * For instance, if a driver has no hardware limits on vertex buffer
- * dimensions, it would not ordinarily want to split vbos.  But if
- * there is an unexpected fallback, eg memory manager fails to upload
- * textures, it will want to pass the drawing commands onto swtnl,
- * which does have limitations.  A convenience function allows swtnl
- * to split the drawing and vbos internally without imposing its
- * limitations on drivers which want to use it as a fallback path.
- */
-
-#include "main/glheader.h"
-#include "main/imports.h"
-#include "main/mtypes.h"
-#include "main/macros.h"
-
-#include "vbo_split.h"
-#include "vbo.h"
-
-/* True if a primitive can be split without copying of vertices, false
- * otherwise.
- */
-GLboolean split_prim_inplace(GLenum mode, GLuint *first, GLuint *incr)
-{
-   switch (mode) {
-   case GL_POINTS:
-      *first = 1;
-      *incr = 1;
-      return GL_TRUE;
-   case GL_LINES:
-      *first = 2;
-      *incr = 2;
-      return GL_TRUE;
-   case GL_LINE_STRIP:
-      *first = 2;
-      *incr = 1;
-      return GL_TRUE;
-   case GL_TRIANGLES:
-      *first = 3;
-      *incr = 3;
-      return GL_TRUE;
-   case GL_TRIANGLE_STRIP:
-      *first = 3;
-      *incr = 1;
-      return GL_TRUE;
-   case GL_QUADS:
-      *first = 4;
-      *incr = 4;
-      return GL_TRUE;
-   case GL_QUAD_STRIP:
-      *first = 4;
-      *incr = 2;
-      return GL_TRUE;
-   default:
-      *first = 0;
-      *incr = 1;		/* so that count % incr works */
-      return GL_FALSE;
-   }
-}
-
-
-
-void vbo_split_prims( struct gl_context *ctx,
-		      const struct gl_client_array *arrays[],
-		      const struct _mesa_prim *prim,
-		      GLuint nr_prims,
-		      const struct _mesa_index_buffer *ib,
-		      GLuint min_index,
-		      GLuint max_index,
-		      vbo_draw_func draw,
-		      const struct split_limits *limits )
-{
-   GLint max_basevertex = prim->basevertex;
-   GLuint i;
-
-   for (i = 1; i < nr_prims; i++)
-      max_basevertex = MAX2(max_basevertex, prim[i].basevertex);
-
-   /* XXX max_basevertex is computed but not used, why? */
-
-   if (ib) {
-      if (limits->max_indices == 0) {
-	 /* Could traverse the indices, re-emitting vertices in turn.
-	  * But it's hard to see why this case would be needed - for
-	  * software tnl, it is better to convert to non-indexed
-	  * rendering after transformation is complete, as is done in
-	  * the t_dd_rendertmp.h templates.  Are there any devices
-	  * with hardware tnl that cannot do indexed rendering?
-	  *
-	  * For now, this path is disabled.
-	  */
-	 assert(0);
-      }
-      else if (max_index - min_index >= limits->max_verts) {
-	 /* The vertex buffers are too large for hardware (or the
-	  * swtnl module).  Traverse the indices, re-emitting vertices
-	  * in turn.  Use a vertex cache to preserve some of the
-	  * sharing from the original index list.
-	  */
-	 vbo_split_copy(ctx, arrays, prim, nr_prims, ib,
-			draw, limits );
-      }
-      else if (ib->count > limits->max_indices) {
-	 /* The index buffer is too large for hardware.  Try to split
-	  * on whole-primitive boundaries, otherwise try to split the
-	  * individual primitives.
-	  */
-	 vbo_split_inplace(ctx, arrays, prim, nr_prims, ib,
-			   min_index, max_index, draw, limits );
-      }
-      else {
-	 /* Why were we called? */
-	 assert(0);
-      }
-   }
-   else {
-      if (max_index - min_index >= limits->max_verts) {
-	 /* The vertex buffer is too large for hardware (or the swtnl
-	  * module).  Try to split on whole-primitive boundaries,
-	  * otherwise try to split the individual primitives.
-	  */
-	 vbo_split_inplace(ctx, arrays, prim, nr_prims, ib,
-			   min_index, max_index, draw, limits );
-      }
-      else {
-	 /* Why were we called? */
-	 assert(0);
-      }
-   }
-}
-
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5
+ *
+ * Copyright (C) 1999-2006  Brian Paul   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
+ * BRIAN PAUL 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.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+/* Deal with hardware and/or swtnl maximums:
+ * - maximum number of vertices in buffer
+ * - maximum number of elements (maybe zero)
+ *
+ * The maximums may vary with opengl state (eg if a larger hardware
+ * vertex is required in this state, the maximum number of vertices
+ * may be smaller than in another state).
+ *
+ * We want buffer splitting to be a convenience function for the code
+ * actually drawing the primitives rather than a system-wide maximum,
+ * otherwise it is hard to avoid pessimism.  
+ *
+ * For instance, if a driver has no hardware limits on vertex buffer
+ * dimensions, it would not ordinarily want to split vbos.  But if
+ * there is an unexpected fallback, eg memory manager fails to upload
+ * textures, it will want to pass the drawing commands onto swtnl,
+ * which does have limitations.  A convenience function allows swtnl
+ * to split the drawing and vbos internally without imposing its
+ * limitations on drivers which want to use it as a fallback path.
+ */
+
+#include "main/glheader.h"
+#include "main/imports.h"
+#include "main/mtypes.h"
+#include "main/macros.h"
+
+#include "vbo_split.h"
+#include "vbo.h"
+
+/* True if a primitive can be split without copying of vertices, false
+ * otherwise.
+ */
+GLboolean split_prim_inplace(GLenum mode, GLuint *first, GLuint *incr)
+{
+   switch (mode) {
+   case GL_POINTS:
+      *first = 1;
+      *incr = 1;
+      return GL_TRUE;
+   case GL_LINES:
+      *first = 2;
+      *incr = 2;
+      return GL_TRUE;
+   case GL_LINE_STRIP:
+      *first = 2;
+      *incr = 1;
+      return GL_TRUE;
+   case GL_TRIANGLES:
+      *first = 3;
+      *incr = 3;
+      return GL_TRUE;
+   case GL_TRIANGLE_STRIP:
+      *first = 3;
+      *incr = 1;
+      return GL_TRUE;
+   case GL_QUADS:
+      *first = 4;
+      *incr = 4;
+      return GL_TRUE;
+   case GL_QUAD_STRIP:
+      *first = 4;
+      *incr = 2;
+      return GL_TRUE;
+   default:
+      *first = 0;
+      *incr = 1;		/* so that count % incr works */
+      return GL_FALSE;
+   }
+}
+
+
+
+void vbo_split_prims( struct gl_context *ctx,
+		      const struct gl_client_array *arrays[],
+		      const struct _mesa_prim *prim,
+		      GLuint nr_prims,
+		      const struct _mesa_index_buffer *ib,
+		      GLuint min_index,
+		      GLuint max_index,
+		      vbo_draw_func draw,
+		      const struct split_limits *limits )
+{
+   GLint max_basevertex = prim->basevertex;
+   GLuint i;
+
+   for (i = 1; i < nr_prims; i++)
+      max_basevertex = MAX2(max_basevertex, prim[i].basevertex);
+
+   /* XXX max_basevertex is computed but not used, why? */
+
+   if (ib) {
+      if (limits->max_indices == 0) {
+	 /* Could traverse the indices, re-emitting vertices in turn.
+	  * But it's hard to see why this case would be needed - for
+	  * software tnl, it is better to convert to non-indexed
+	  * rendering after transformation is complete.  Are there any devices
+	  * with hardware tnl that cannot do indexed rendering?
+	  *
+	  * For now, this path is disabled.
+	  */
+	 assert(0);
+      }
+      else if (max_index - min_index >= limits->max_verts) {
+	 /* The vertex buffers are too large for hardware (or the
+	  * swtnl module).  Traverse the indices, re-emitting vertices
+	  * in turn.  Use a vertex cache to preserve some of the
+	  * sharing from the original index list.
+	  */
+	 vbo_split_copy(ctx, arrays, prim, nr_prims, ib,
+			draw, limits );
+      }
+      else if (ib->count > limits->max_indices) {
+	 /* The index buffer is too large for hardware.  Try to split
+	  * on whole-primitive boundaries, otherwise try to split the
+	  * individual primitives.
+	  */
+	 vbo_split_inplace(ctx, arrays, prim, nr_prims, ib,
+			   min_index, max_index, draw, limits );
+      }
+      else {
+	 /* Why were we called? */
+	 assert(0);
+      }
+   }
+   else {
+      if (max_index - min_index >= limits->max_verts) {
+	 /* The vertex buffer is too large for hardware (or the swtnl
+	  * module).  Try to split on whole-primitive boundaries,
+	  * otherwise try to split the individual primitives.
+	  */
+	 vbo_split_inplace(ctx, arrays, prim, nr_prims, ib,
+			   min_index, max_index, draw, limits );
+      }
+      else {
+	 /* Why were we called? */
+	 assert(0);
+      }
+   }
+}
+