First version of the softpipe rasterizer.

This will flesh out to hopefully acheive 3 things:
	- New software rasterizer for mesa
	- New driver model for mesa & dri with much smaller drivers
	- The basis for the cell driver.

It's got a long way to go yet, but will at least run trivial/tri.c.

1 files changed, 115 insertions, 0 deletions

diff --git a/src/mesa/softpipe/generic/g_surface.h b/src/mesa/softpipe/generic/g_surface.h
new file mode 100644
index 00000000000..23c28f0bb40
--- /dev/null
+++ b/src/mesa/softpipe/generic/g_surface.h
@@ -0,0 +1,115 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 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.
+ * 
+ **************************************************************************/
+
+/* Authors:  Keith Whitwell <[email protected]>
+ */
+
+#ifndef G_SURFACE_H
+#define G_SURFACE_H
+
+#include "glheader.h"
+#include "g_headers.h"
+
+struct generic_surface;
+
+#define G_SURFACE_RGBA_8888  0x1
+
+/* Internal structs and helpers for the primitive clip/setup pipeline:
+ */
+struct generic_surface_type {
+   
+   GLuint format;
+
+   void (*read_quad_f)( struct generic_surface *,
+			GLint x, GLint y,
+			GLfloat (*rgba)[NUM_CHANNELS] );
+
+   void (*read_quad_f_swz)( struct generic_surface *,
+			    GLint x, GLint y,
+			    GLfloat (*rrrr)[QUAD_SIZE] );
+
+   void (*read_quad_ub)( struct generic_surface *,
+			 GLint x, GLint y,
+			 GLubyte (*rgba)[NUM_CHANNELS] );
+
+
+   void (*write_quad_f)( struct generic_surface *,
+			 GLint x, GLint y,
+			 GLfloat (*rgba)[NUM_CHANNELS] );
+
+   void (*write_quad_f_swz)( struct generic_surface *,
+			     GLint x, GLint y,
+			     GLfloat (*rrrr)[QUAD_SIZE] );
+
+
+   void (*write_quad_ub)( struct generic_surface *,
+			  GLint x, GLint y,
+			  GLubyte (*rgba)[NUM_CHANNELS] );
+
+
+};
+
+
+struct generic_surface {
+   struct generic_surface_type *type;
+   struct softpipe_surface surface;
+};
+
+
+static INLINE void gs_read_quad_f( struct generic_surface *gs,
+				   GLint x, GLint y,
+				   GLfloat (*rgba)[NUM_CHANNELS] )
+{
+   gs->type->read_quad_f(gs, x, y, rgba);
+}
+
+static INLINE void gs_read_quad_f_swz( struct generic_surface *gs,
+				       GLint x, GLint y,
+				       GLfloat (*rrrr)[QUAD_SIZE] )
+{
+   gs->type->read_quad_f_swz(gs, x, y, rrrr);
+}
+
+static INLINE void gs_write_quad_f( struct generic_surface *gs,
+				    GLint x, GLint y,
+				    GLfloat (*rgba)[NUM_CHANNELS] )
+{
+   gs->type->write_quad_f(gs, x, y, rgba);
+}
+
+static INLINE void gs_write_quad_f_swz( struct generic_surface *gs,
+					GLint x, GLint y,
+					GLfloat (*rrrr)[QUAD_SIZE] )
+{
+   gs->type->write_quad_f_swz(gs, x, y, rrrr);
+}
+
+/* Like this, or hidden?
+ */
+struct generic_surface_type gs_rgba8;
+
+#endif