import Mesa 11.0.6

1 files changed, 206 insertions, 0 deletions

diff --git a/lib/mesa/src/gallium/drivers/llvmpipe/lp_state_blend.c b/lib/mesa/src/gallium/drivers/llvmpipe/lp_state_blend.c
new file mode 100644
index 000000000..e38de9aca
--- /dev/null
+++ b/lib/mesa/src/gallium/drivers/llvmpipe/lp_state_blend.c
@@ -0,0 +1,206 @@
+/**************************************************************************
+ * 
+ * Copyright 2009 VMware, Inc.
+ * Copyright 2007 VMware, Inc.
+ * 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 VMWARE 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.
+ * 
+ **************************************************************************/
+
+/**
+ * @author Jose Fonseca <jfonseca@vmware.com>
+ * @author Keith Whitwell <keithw@vmware.com>
+ */
+
+#include "util/u_memory.h"
+#include "util/u_math.h"
+#include "util/u_dump.h"
+#include "draw/draw_context.h"
+#include "lp_screen.h"
+#include "lp_context.h"
+#include "lp_state.h"
+#include "lp_debug.h"
+
+
+static void *
+llvmpipe_create_blend_state(struct pipe_context *pipe,
+                            const struct pipe_blend_state *blend)
+{
+   struct pipe_blend_state *state = mem_dup(blend, sizeof *blend);
+   int i;
+
+   if (LP_PERF & PERF_NO_BLEND) {
+      state->independent_blend_enable = 0;
+      for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
+	 state->rt[i].blend_enable = 0;
+   }
+
+   return state;
+}
+
+
+static void
+llvmpipe_bind_blend_state(struct pipe_context *pipe, void *blend)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+
+   if (llvmpipe->blend == blend)
+      return;
+
+   draw_flush(llvmpipe->draw);
+
+   llvmpipe->blend = blend;
+
+   llvmpipe->dirty |= LP_NEW_BLEND;
+}
+
+
+static void
+llvmpipe_delete_blend_state(struct pipe_context *pipe, void *blend)
+{
+   FREE( blend );
+}
+
+
+static void
+llvmpipe_set_blend_color(struct pipe_context *pipe,
+                         const struct pipe_blend_color *blend_color)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+
+   if(!blend_color)
+      return;
+
+   if(memcmp(&llvmpipe->blend_color, blend_color, sizeof *blend_color) == 0)
+      return;
+
+   draw_flush(llvmpipe->draw);
+
+   memcpy(&llvmpipe->blend_color, blend_color, sizeof *blend_color);
+
+   llvmpipe->dirty |= LP_NEW_BLEND_COLOR;
+}
+
+
+/** XXX move someday?  Or consolidate all these simple state setters
+ * into one file.
+ */
+
+
+static void *
+llvmpipe_create_depth_stencil_state(struct pipe_context *pipe,
+				    const struct pipe_depth_stencil_alpha_state *depth_stencil)
+{
+   struct pipe_depth_stencil_alpha_state *state;
+
+   state = mem_dup(depth_stencil, sizeof *depth_stencil);
+
+   if (LP_PERF & PERF_NO_DEPTH) {
+      state->depth.enabled = 0;
+      state->depth.writemask = 0;
+      state->stencil[0].enabled = 0;
+      state->stencil[1].enabled = 0;
+   }
+
+   if (LP_PERF & PERF_NO_ALPHATEST) {
+      state->alpha.enabled = 0;
+   }
+
+   return state;
+}
+
+
+static void
+llvmpipe_bind_depth_stencil_state(struct pipe_context *pipe,
+                                  void *depth_stencil)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+
+   if (llvmpipe->depth_stencil == depth_stencil)
+      return;
+
+   draw_flush(llvmpipe->draw);
+
+   llvmpipe->depth_stencil = depth_stencil;
+
+   llvmpipe->dirty |= LP_NEW_DEPTH_STENCIL_ALPHA;
+}
+
+
+static void
+llvmpipe_delete_depth_stencil_state(struct pipe_context *pipe, void *depth)
+{
+   FREE( depth );
+}
+
+
+static void
+llvmpipe_set_stencil_ref(struct pipe_context *pipe,
+                         const struct pipe_stencil_ref *stencil_ref)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+
+   if(!stencil_ref)
+      return;
+
+   if(memcmp(&llvmpipe->stencil_ref, stencil_ref, sizeof *stencil_ref) == 0)
+      return;
+
+   draw_flush(llvmpipe->draw);
+
+   memcpy(&llvmpipe->stencil_ref, stencil_ref, sizeof *stencil_ref);
+
+   /* not sure. want new flag? */
+   llvmpipe->dirty |= LP_NEW_DEPTH_STENCIL_ALPHA;
+}
+
+static void
+llvmpipe_set_sample_mask(struct pipe_context *pipe,
+                         unsigned sample_mask)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+
+   if (sample_mask != llvmpipe->sample_mask) {
+      llvmpipe->sample_mask = sample_mask;
+
+      llvmpipe->dirty |= LP_NEW_RASTERIZER;
+   }
+}
+
+void
+llvmpipe_init_blend_funcs(struct llvmpipe_context *llvmpipe)
+{
+   llvmpipe->pipe.create_blend_state = llvmpipe_create_blend_state;
+   llvmpipe->pipe.bind_blend_state   = llvmpipe_bind_blend_state;
+   llvmpipe->pipe.delete_blend_state = llvmpipe_delete_blend_state;
+
+   llvmpipe->pipe.create_depth_stencil_alpha_state = llvmpipe_create_depth_stencil_state;
+   llvmpipe->pipe.bind_depth_stencil_alpha_state   = llvmpipe_bind_depth_stencil_state;
+   llvmpipe->pipe.delete_depth_stencil_alpha_state = llvmpipe_delete_depth_stencil_state;
+
+   llvmpipe->pipe.set_blend_color = llvmpipe_set_blend_color;
+
+   llvmpipe->pipe.set_stencil_ref = llvmpipe_set_stencil_ref;
+   llvmpipe->pipe.set_sample_mask = llvmpipe_set_sample_mask;
+
+   llvmpipe->sample_mask = ~0;
+}