llvmpipe: use new u_ringbuffer for scene queue
[mesa.git] / src / gallium / drivers / llvmpipe / lp_state_blend.c
index ed4ea3b33044c589475469aaa99ed2c2337401a5..9b950e82d897394976d4e71dc109c72cb5e370cd 100644 (file)
  */
 
 #include "util/u_memory.h"
+#include "util/u_math.h"
 #include "util/u_debug_dump.h"
+#include "draw/draw_context.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 *base)
+                            const struct pipe_blend_state *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;
+   return mem_dup(blend, sizeof(*blend));
 }
 
 void llvmpipe_bind_blend_state( struct pipe_context *pipe,
@@ -153,23 +52,19 @@ void llvmpipe_bind_blend_state( struct pipe_context *pipe,
 {
    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 
-   llvmpipe->blend = (struct lp_blend_state *)blend;
+   if (llvmpipe->blend == blend)
+      return;
+
+   draw_flush(llvmpipe->draw);
+
+   llvmpipe->blend = 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 );
 }
 
@@ -178,13 +73,18 @@ 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;
 
-   for (i = 0; i < 4; ++i)
-      for (j = 0; j < QUAD_SIZE; ++j)
-         llvmpipe->blend_color[i][j] = blend_color->color[i];
+   if(!blend_color)
+      return;
 
-   llvmpipe->dirty |= LP_NEW_BLEND;
+   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;
 }
 
 
@@ -206,7 +106,12 @@ llvmpipe_bind_depth_stencil_state(struct pipe_context *pipe,
 {
    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 
-   llvmpipe->depth_stencil = (const struct pipe_depth_stencil_alpha_state *)depth_stencil;
+   if (llvmpipe->depth_stencil == depth_stencil)
+      return;
+
+   draw_flush(llvmpipe->draw);
+
+   llvmpipe->depth_stencil = depth_stencil;
 
    llvmpipe->dirty |= LP_NEW_DEPTH_STENCIL_ALPHA;
 }