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authorKeith Whitwell <[email protected]>2009-10-23 16:55:02 +0100
committerKeith Whitwell <[email protected]>2009-10-23 17:03:45 +0100
commit2f5f7c07732577f60666e3cee69c75c9b035c145 (patch)
treeff6639c9168bef0c2d389efdc6ce8eb3d6071ab2 /src/gallium/drivers/i965/brw_util.c
parentda253319f9e5d37d9c55b975ef9328545a3ac9b4 (diff)
i965g: re-starting from the dri driver
Diffstat (limited to 'src/gallium/drivers/i965/brw_util.c')
-rw-r--r--src/gallium/drivers/i965/brw_util.c104
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;
+ }
+}