i965g: re-starting from the dri driver

1 files changed, 104 insertions, 0 deletions

diff --git a/src/gallium/drivers/i965/brw_util.c b/src/gallium/drivers/i965/brw_util.c
new file mode 100644
index 00000000000..ce21aa48695
--- /dev/null
+++ b/src/gallium/drivers/i965/brw_util.c
@@ -0,0 +1,104 @@
+/*
+ Copyright (C) Intel Corp.  2006.  All Rights Reserved.
+ Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ develop this 3D driver.
+ 
+ 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 (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 NONINFRINGEMENT.
+ IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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]>
+  */
+         
+
+#include "main/mtypes.h"
+#include "shader/prog_parameter.h"
+#include "brw_util.h"
+#include "brw_defines.h"
+
+GLuint brw_count_bits( GLuint val )
+{
+   GLuint i;
+   for (i = 0; val ; val >>= 1)
+      if (val & 1)
+	 i++;
+   return i;
+}
+
+
+GLuint brw_translate_blend_equation( GLenum mode )
+{
+   switch (mode) {
+   case GL_FUNC_ADD: 
+      return BRW_BLENDFUNCTION_ADD; 
+   case GL_MIN: 
+      return BRW_BLENDFUNCTION_MIN; 
+   case GL_MAX: 
+      return BRW_BLENDFUNCTION_MAX; 
+   case GL_FUNC_SUBTRACT: 
+      return BRW_BLENDFUNCTION_SUBTRACT; 
+   case GL_FUNC_REVERSE_SUBTRACT: 
+      return BRW_BLENDFUNCTION_REVERSE_SUBTRACT; 
+   default: 
+      assert(0);
+      return BRW_BLENDFUNCTION_ADD;
+   }
+}
+
+GLuint brw_translate_blend_factor( GLenum factor )
+{
+   switch(factor) {
+   case GL_ZERO: 
+      return BRW_BLENDFACTOR_ZERO; 
+   case GL_SRC_ALPHA: 
+      return BRW_BLENDFACTOR_SRC_ALPHA; 
+   case GL_ONE: 
+      return BRW_BLENDFACTOR_ONE; 
+   case GL_SRC_COLOR: 
+      return BRW_BLENDFACTOR_SRC_COLOR; 
+   case GL_ONE_MINUS_SRC_COLOR: 
+      return BRW_BLENDFACTOR_INV_SRC_COLOR; 
+   case GL_DST_COLOR: 
+      return BRW_BLENDFACTOR_DST_COLOR; 
+   case GL_ONE_MINUS_DST_COLOR: 
+      return BRW_BLENDFACTOR_INV_DST_COLOR; 
+   case GL_ONE_MINUS_SRC_ALPHA:
+      return BRW_BLENDFACTOR_INV_SRC_ALPHA; 
+   case GL_DST_ALPHA: 
+      return BRW_BLENDFACTOR_DST_ALPHA; 
+   case GL_ONE_MINUS_DST_ALPHA:
+      return BRW_BLENDFACTOR_INV_DST_ALPHA; 
+   case GL_SRC_ALPHA_SATURATE: 
+      return BRW_BLENDFACTOR_SRC_ALPHA_SATURATE;
+   case GL_CONSTANT_COLOR:
+      return BRW_BLENDFACTOR_CONST_COLOR; 
+   case GL_ONE_MINUS_CONSTANT_COLOR:
+      return BRW_BLENDFACTOR_INV_CONST_COLOR;
+   case GL_CONSTANT_ALPHA:
+      return BRW_BLENDFACTOR_CONST_ALPHA; 
+   case GL_ONE_MINUS_CONSTANT_ALPHA:
+      return BRW_BLENDFACTOR_INV_CONST_ALPHA;
+   default:
+      assert(0);
+      return BRW_BLENDFACTOR_ZERO;
+   }   
+}