llvmpipe: Use the generated SoA blending code.

1 files changed, 126 insertions, 6 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_state_blend.c b/src/gallium/drivers/llvmpipe/lp_state_blend.c
index 041a54f13e..ed4ea3b330 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_blend.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_blend.c
@@ -1,5 +1,6 @@
 /**************************************************************************
  * 
+ * Copyright 2009 VMware, Inc.
  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  *
@@ -25,19 +26,126 @@
  * 
  **************************************************************************/
 
-/* Authors:  Keith Whitwell <keith@tungstengraphics.com>
+/**
+ * @author Jose Fonseca <jfonseca@vmware.com>
+ * @author Keith Whitwell <keith@tungstengraphics.com>
  */
 
 #include "util/u_memory.h"
+#include "util/u_debug_dump.h"
+#include "lp_screen.h"
 #include "lp_context.h"
 #include "lp_state.h"
 
+#include "lp_bld_type.h"
+#include "lp_bld_arit.h"
+#include "lp_bld_blend.h"
+
+
+static void
+blend_generate(struct llvmpipe_screen *screen,
+               struct lp_blend_state *blend)
+{
+   union lp_type type;
+   LLVMTypeRef vec_type;
+   LLVMTypeRef args[4];
+   LLVMValueRef src_ptr;
+   LLVMValueRef dst_ptr;
+   LLVMValueRef const_ptr;
+   LLVMValueRef res_ptr;
+   LLVMBasicBlockRef block;
+   LLVMBuilderRef builder;
+   LLVMValueRef src[4];
+   LLVMValueRef dst[4];
+   LLVMValueRef con[4];
+   LLVMValueRef res[4];
+   char src_name[5] = "src?";
+   char dst_name[5] = "dst?";
+   char con_name[5] = "con?";
+   char res_name[5] = "res?";
+   unsigned i;
+
+   type.value = 0;
+   type.floating = TRUE;
+   type.sign = FALSE;
+   type.norm = TRUE;
+   type.width = 32;
+   type.length = 4;
+
+   vec_type = lp_build_vec_type(type);
+
+   args[3] = args[2] = args[1] = args[0] = LLVMPointerType(vec_type, 0);
+   blend->function = LLVMAddFunction(screen->module, "blend", LLVMFunctionType(LLVMVoidType(), args, 4, 0));
+   LLVMSetFunctionCallConv(blend->function, LLVMCCallConv);
+   src_ptr = LLVMGetParam(blend->function, 0);
+   dst_ptr = LLVMGetParam(blend->function, 1);
+   const_ptr = LLVMGetParam(blend->function, 2);
+   res_ptr = LLVMGetParam(blend->function, 3);
+
+   block = LLVMAppendBasicBlock(blend->function, "entry");
+   builder = LLVMCreateBuilder();
+   LLVMPositionBuilderAtEnd(builder, block);
+
+   for(i = 0; i < 4; ++i) {
+      LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+      con_name[3] = dst_name[3] = src_name[3] = "rgba"[i];
+      src[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, src_ptr, &index, 1, ""), src_name);
+      dst[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dst_ptr, &index, 1, ""), dst_name);
+      con[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, const_ptr, &index, 1, ""), con_name);
+   }
+
+   lp_build_blend_soa(builder, &blend->base, type, src, dst, con, res);
+
+   for(i = 0; i < 4; ++i) {
+      LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+      res_name[3] = "rgba"[i];
+      LLVMSetValueName(res[i], res_name);
+      LLVMBuildStore(builder, res[i], LLVMBuildGEP(builder, res_ptr, &index, 1, ""));
+   }
+
+   LLVMBuildRetVoid(builder);;
+
+   LLVMDisposeBuilder(builder);
+}
+
 
 void *
 llvmpipe_create_blend_state(struct pipe_context *pipe,
-                            const struct pipe_blend_state *blend)
+                            const struct pipe_blend_state *base)
 {
-   return mem_dup(blend, sizeof(*blend));
+   struct llvmpipe_screen *screen = llvmpipe_screen(pipe->screen);
+   struct lp_blend_state *blend;
+
+   blend = CALLOC_STRUCT(lp_blend_state);
+   if(!blend)
+      return NULL;
+
+   blend->base = *base;
+
+   blend_generate(screen, blend);
+
+   LLVMRunFunctionPassManager(screen->pass, blend->function);
+
+#if 1
+   debug_printf("%s=%s %s=%s %s=%s %s=%s %s=%s %s=%s\n",
+                "rgb_func",         debug_dump_blend_func  (blend->base.rgb_func, TRUE),
+                "rgb_src_factor",   debug_dump_blend_factor(blend->base.rgb_src_factor, TRUE),
+                "rgb_dst_factor",   debug_dump_blend_factor(blend->base.rgb_dst_factor, TRUE),
+                "alpha_func",       debug_dump_blend_func  (blend->base.alpha_func, TRUE),
+                "alpha_src_factor", debug_dump_blend_factor(blend->base.alpha_src_factor, TRUE),
+                "alpha_dst_factor", debug_dump_blend_factor(blend->base.alpha_dst_factor, TRUE));
+   LLVMDumpModule(screen->module);
+   debug_printf("\n");
+#endif
+
+   if(LLVMVerifyFunction(blend->function, LLVMPrintMessageAction)) {
+      LLVMDumpModule(screen->module);
+      abort();
+   }
+
+   blend->jit_function = (lp_blend_func)LLVMGetPointerToGlobal(screen->engine, blend->function);
+
+   return blend;
 }
 
 void llvmpipe_bind_blend_state( struct pipe_context *pipe,
@@ -45,14 +153,23 @@ void llvmpipe_bind_blend_state( struct pipe_context *pipe,
 {
    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 
-   llvmpipe->blend = (const struct pipe_blend_state *)blend;
+   llvmpipe->blend = (struct lp_blend_state *)blend;
 
    llvmpipe->dirty |= LP_NEW_BLEND;
 }
 
 void llvmpipe_delete_blend_state(struct pipe_context *pipe,
-                                 void *blend)
+                                 void *_blend)
 {
+   struct llvmpipe_screen *screen = llvmpipe_screen(pipe->screen);
+   struct lp_blend_state *blend = (struct lp_blend_state *)_blend;
+
+   if(blend->function) {
+      if(blend->jit_function)
+         LLVMFreeMachineCodeForFunction(screen->engine, blend->function);
+      LLVMDeleteFunction(blend->function);
+   }
+
    FREE( blend );
 }
 
@@ -61,8 +178,11 @@ void llvmpipe_set_blend_color( struct pipe_context *pipe,
 			     const struct pipe_blend_color *blend_color )
 {
    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+   unsigned i, j;
 
-   llvmpipe->blend_color = *blend_color;
+   for (i = 0; i < 4; ++i)
+      for (j = 0; j < QUAD_SIZE; ++j)
+         llvmpipe->blend_color[i][j] = blend_color->color[i];
 
    llvmpipe->dirty |= LP_NEW_BLEND;
 }