Added colormask, dither, multisample state. Implement colormasking stage.

1 files changed, 88 insertions, 0 deletions

diff --git a/src/mesa/pipe/softpipe/sp_quad_colormask.c b/src/mesa/pipe/softpipe/sp_quad_colormask.c
new file mode 100644
index 0000000000..6fb228fdda
--- /dev/null
+++ b/src/mesa/pipe/softpipe/sp_quad_colormask.c
@@ -0,0 +1,88 @@
+/**************************************************************************
+ * 
+ * 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.
+ * 
+ **************************************************************************/
+
+/**
+ * \brief  quad colormask stage
+ * \author Brian Paul
+ */
+
+#include "main/glheader.h"
+#include "main/imports.h"
+#include "main/macros.h"
+#include "pipe/p_defines.h"
+#include "sp_context.h"
+#include "sp_headers.h"
+#include "sp_surface.h"
+#include "sp_quad.h"
+
+
+
+static void
+colormask_quad(struct quad_stage *qs, struct quad_header *quad)
+{
+   struct softpipe_context *softpipe = qs->softpipe;
+   GLfloat dest[4][QUAD_SIZE];
+
+   /* XXX buffer looping */
+
+   struct softpipe_surface *sps
+      = softpipe_surface(softpipe->framebuffer.cbufs[0]);
+   
+   sps->read_quad_f_swz(sps, quad->x0, quad->y0, dest);
+
+   /* R */
+   if (!(softpipe->blend.colormask & PIPE_MASK_R))
+       COPY_4FV(quad->outputs.color[0], dest[0]);
+
+   /* G */
+   if (!(softpipe->blend.colormask & PIPE_MASK_G))
+       COPY_4FV(quad->outputs.color[1], dest[1]);
+
+   /* B */
+   if (!(softpipe->blend.colormask & PIPE_MASK_B))
+       COPY_4FV(quad->outputs.color[2], dest[2]);
+
+   /* A */
+   if (!(softpipe->blend.colormask & PIPE_MASK_A))
+       COPY_4FV(quad->outputs.color[3], dest[3]);
+
+   /* pass quad to next stage */
+   qs->next->run(qs->next, quad);
+}
+
+
+
+
+struct quad_stage *sp_quad_colormask_stage( struct softpipe_context *softpipe )
+{
+   struct quad_stage *stage = CALLOC_STRUCT(quad_stage);
+
+   stage->softpipe = softpipe;
+   stage->run = colormask_quad;
+
+   return stage;
+}