Added extra needed files

1 files changed, 234 insertions, 0 deletions

diff --git a/mesalib/src/gallium/auxiliary/util/u_prim.h b/mesalib/src/gallium/auxiliary/util/u_prim.h
new file mode 100644
index 000000000..519820e1b
--- /dev/null
+++ b/mesalib/src/gallium/auxiliary/util/u_prim.h
@@ -0,0 +1,234 @@
+/**************************************************************************

+ *

+ * Copyright 2008 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.

+ *

+ **************************************************************************/

+

+

+#ifndef U_BLIT_H

+#define U_BLIT_H

+

+

+#include "pipe/p_defines.h"

+#include "util/u_debug.h"

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+

+static INLINE boolean u_validate_pipe_prim( unsigned pipe_prim, unsigned nr )

+{

+   boolean ok = TRUE;

+

+   switch (pipe_prim) {

+   case PIPE_PRIM_POINTS:

+      ok = (nr >= 1);

+      break;

+   case PIPE_PRIM_LINES:

+      ok = (nr >= 2);

+      break;

+   case PIPE_PRIM_LINE_STRIP:

+   case PIPE_PRIM_LINE_LOOP:

+      ok = (nr >= 2);

+      break;

+   case PIPE_PRIM_TRIANGLES:

+      ok = (nr >= 3);

+      break;

+   case PIPE_PRIM_TRIANGLE_STRIP:

+   case PIPE_PRIM_TRIANGLE_FAN:

+   case PIPE_PRIM_POLYGON:

+      ok = (nr >= 3);

+      break;

+   case PIPE_PRIM_QUADS:

+      ok = (nr >= 4);

+      break;

+   case PIPE_PRIM_QUAD_STRIP:

+      ok = (nr >= 4);

+      break;

+   default:

+      ok = 0;

+      break;

+   }

+

+   return ok;

+}

+

+

+static INLINE boolean u_trim_pipe_prim( unsigned pipe_prim, unsigned *nr )

+{

+   boolean ok = TRUE;

+

+   switch (pipe_prim) {

+   case PIPE_PRIM_POINTS:

+      ok = (*nr >= 1);

+      break;

+   case PIPE_PRIM_LINES:

+      ok = (*nr >= 2);

+      *nr -= (*nr % 2);

+      break;

+   case PIPE_PRIM_LINE_STRIP:

+   case PIPE_PRIM_LINE_LOOP:

+      ok = (*nr >= 2);

+      break;

+   case PIPE_PRIM_TRIANGLES:

+      ok = (*nr >= 3);

+      *nr -= (*nr % 3);

+      break;

+   case PIPE_PRIM_TRIANGLE_STRIP:

+   case PIPE_PRIM_TRIANGLE_FAN:

+   case PIPE_PRIM_POLYGON:

+      ok = (*nr >= 3);

+      break;

+   case PIPE_PRIM_QUADS:

+      ok = (*nr >= 4);

+      *nr -= (*nr % 4);

+      break;

+   case PIPE_PRIM_QUAD_STRIP:

+      ok = (*nr >= 4);

+      *nr -= (*nr % 2);

+      break;

+   case PIPE_PRIM_LINES_ADJACENCY:

+      ok = (*nr >= 4);

+      *nr -= (*nr % 4);

+      break;

+   case PIPE_PRIM_LINE_STRIP_ADJACENCY:

+      ok = (*nr >= 4);

+      break;

+   case PIPE_PRIM_TRIANGLES_ADJACENCY:

+      ok = (*nr >= 6);

+      *nr -= (*nr % 5);

+      break;

+   case PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY:

+      ok = (*nr >= 4);

+      break;

+   default:

+      ok = 0;

+      break;

+   }

+

+   if (!ok)

+      *nr = 0;

+

+   return ok;

+}

+

+

+static INLINE unsigned u_reduced_prim( unsigned pipe_prim )

+{

+   switch (pipe_prim) {

+   case PIPE_PRIM_POINTS:

+      return PIPE_PRIM_POINTS;

+

+   case PIPE_PRIM_LINES:

+   case PIPE_PRIM_LINE_STRIP:

+   case PIPE_PRIM_LINE_LOOP:

+      return PIPE_PRIM_LINES;

+

+   default:

+      return PIPE_PRIM_TRIANGLES;

+   }

+}

+

+static INLINE unsigned

+u_vertices_per_prim(int primitive)

+{

+   switch(primitive) {

+   case PIPE_PRIM_POINTS:

+      return 1;

+   case PIPE_PRIM_LINES:

+   case PIPE_PRIM_LINE_LOOP:

+   case PIPE_PRIM_LINE_STRIP:

+      return 2;

+   case PIPE_PRIM_TRIANGLES:

+   case PIPE_PRIM_TRIANGLE_STRIP:

+   case PIPE_PRIM_TRIANGLE_FAN:

+      return 3;

+   case PIPE_PRIM_LINES_ADJACENCY:

+   case PIPE_PRIM_LINE_STRIP_ADJACENCY:

+      return 4;

+   case PIPE_PRIM_TRIANGLES_ADJACENCY:

+   case PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY:

+      return 6;

+

+   /* following primitives should never be used

+    * with geometry shaders abd their size is

+    * undefined */

+   case PIPE_PRIM_POLYGON:

+   case PIPE_PRIM_QUADS:

+   case PIPE_PRIM_QUAD_STRIP:

+   default:

+      debug_printf("Unrecognized geometry shader primitive");

+      return 3;

+   }

+}

+

+/**

+ * Returns the number of decomposed primitives for the given

+ * vertex count.

+ * Geometry shader is invoked once for each triangle in

+ * triangle strip, triangle fans and triangles and once

+ * for each line in line strip, line loop, lines.

+ */

+static INLINE unsigned

+u_gs_prims_for_vertices(int primitive, int vertices)

+{

+   switch(primitive) {

+   case PIPE_PRIM_POINTS:

+      return vertices;

+   case PIPE_PRIM_LINES:

+      return vertices / 2;

+   case PIPE_PRIM_LINE_LOOP:

+      return vertices;

+   case PIPE_PRIM_LINE_STRIP:

+      return vertices - 1;

+   case PIPE_PRIM_TRIANGLES:

+      return vertices /  3;

+   case PIPE_PRIM_TRIANGLE_STRIP:

+      return vertices - 2;

+   case PIPE_PRIM_TRIANGLE_FAN:

+      return vertices - 2;

+   case PIPE_PRIM_LINES_ADJACENCY:

+      return vertices / 2;

+   case PIPE_PRIM_LINE_STRIP_ADJACENCY:

+      return vertices - 1;

+   case PIPE_PRIM_TRIANGLES_ADJACENCY:

+      return vertices / 3;

+   case PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY:

+      return vertices - 2;

+

+   /* following primitives should never be used

+    * with geometry shaders abd their size is

+    * undefined */

+   case PIPE_PRIM_POLYGON:

+   case PIPE_PRIM_QUADS:

+   case PIPE_PRIM_QUAD_STRIP:

+   default:

+      debug_printf("Unrecognized geometry shader primitive");

+      return 3;

+   }

+}

+

+const char *u_prim_name( unsigned pipe_prim );

+

+#endif