llvmpipe: generate multisample triangle rasterizer functions (v2)
[mesa.git] / src / gallium / drivers / llvmpipe / lp_state_blend.c
index 487146bcd4d084499ca0f11bb675699c2eab12a8..10e5930851dd390196a3c1b1038f86cc2c16665e 100644 (file)
@@ -1,7 +1,7 @@
 /**************************************************************************
  * 
  * Copyright 2009 VMware, Inc.
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -19,7 +19,7 @@
  * 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
+ * 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 <keith@tungstengraphics.com>
+ * @author Keith Whitwell <keithw@vmware.com>
  */
 
 #include "util/u_memory.h"
 #include "util/u_math.h"
-#include "util/u_debug_dump.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"
 
-#include "lp_bld_type.h"
-#include "lp_bld_arit.h"
-#include "lp_bld_logic.h"
-#include "lp_bld_blend.h"
-#include "lp_bld_debug.h"
 
-
-static void
-blend_generate(struct llvmpipe_screen *screen,
-               struct lp_blend_state *blend)
+static void *
+llvmpipe_create_blend_state(struct pipe_context *pipe,
+                            const struct pipe_blend_state *blend)
 {
-   union lp_type type;
-   struct lp_build_context bld;
-   LLVMTypeRef vec_type;
-   LLVMTypeRef int_vec_type;
-   LLVMTypeRef arg_types[4];
-   LLVMTypeRef func_type;
-   LLVMValueRef mask_ptr;
-   LLVMValueRef src_ptr;
-   LLVMValueRef dst_ptr;
-   LLVMValueRef const_ptr;
-   LLVMBasicBlockRef block;
-   LLVMBuilderRef builder;
-   LLVMValueRef mask;
-   LLVMValueRef src[4];
-   LLVMValueRef con[4];
-   LLVMValueRef dst[4];
-   LLVMValueRef res[4];
-   char src_name[5] = "src?";
-   char con_name[5] = "con?";
-   char dst_name[5] = "dst?";
-   char res_name[5] = "res?";
-   unsigned i;
-
-   type.value = 0;
-   type.floating = FALSE;
-   type.sign = FALSE;
-   type.norm = TRUE;
-   type.width = 8;
-   type.length = 16;
-
-   vec_type = lp_build_vec_type(type);
-   int_vec_type = lp_build_int_vec_type(type);
-
-   arg_types[0] = LLVMPointerType(int_vec_type, 0); /* mask */
-   arg_types[1] = LLVMPointerType(vec_type, 0);     /* src */
-   arg_types[2] = LLVMPointerType(vec_type, 0);     /* con */
-   arg_types[3] = LLVMPointerType(vec_type, 0);     /* dst */
-   func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);
-   blend->function = LLVMAddFunction(screen->module, "blend", func_type);
-   LLVMSetFunctionCallConv(blend->function, LLVMCCallConv);
-
-   mask_ptr = LLVMGetParam(blend->function, 0);
-   src_ptr = LLVMGetParam(blend->function, 1);
-   const_ptr = LLVMGetParam(blend->function, 2);
-   dst_ptr = LLVMGetParam(blend->function, 3);
-
-   block = LLVMAppendBasicBlock(blend->function, "entry");
-   builder = LLVMCreateBuilder();
-   LLVMPositionBuilderAtEnd(builder, block);
-
-   lp_build_context_init(&bld, builder, type);
-
-   mask = LLVMBuildLoad(builder, mask_ptr, "mask");
-
-   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);
-      con[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, const_ptr, &index, 1, ""), con_name);
-      dst[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dst_ptr, &index, 1, ""), dst_name);
-   }
-
-   lp_build_blend_soa(builder, &blend->base, type, src, dst, con, res);
+   struct pipe_blend_state *state = mem_dup(blend, sizeof *blend);
+   int i;
 
-   for(i = 0; i < 4; ++i) {
-      LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
-      res_name[3] = "rgba"[i];
-      LLVMSetValueName(res[i], res_name);
-      res[i] = lp_build_select(&bld, mask, res[i], dst[i]);
-      LLVMBuildStore(builder, res[i], LLVMBuildGEP(builder, dst_ptr, &index, 1, ""));
+   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;
    }
 
-   LLVMBuildRetVoid(builder);;
-
-   LLVMDisposeBuilder(builder);
+   return state;
 }
 
 
-void *
-llvmpipe_create_blend_state(struct pipe_context *pipe,
-                            const struct pipe_blend_state *base)
+static void
+llvmpipe_bind_blend_state(struct pipe_context *pipe, void *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);
-
-#ifdef DEBUG
-   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));
-   LLVMDumpValue(blend->function);
-   debug_printf("\n");
-#endif
-
-   if(LLVMVerifyFunction(blend->function, LLVMPrintMessageAction)) {
-      LLVMDumpValue(blend->function);
-      abort();
-   }
-
-   blend->jit_function = (lp_blend_func)LLVMGetPointerToGlobal(screen->engine, blend->function);
-
-#ifdef DEBUG
-   lp_disassemble(blend->jit_function);
-#endif
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 
-   return blend;
-}
+   if (llvmpipe->blend == blend)
+      return;
 
-void llvmpipe_bind_blend_state( struct pipe_context *pipe,
-                                void *blend )
-{
-   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+   draw_flush(llvmpipe->draw);
 
-   llvmpipe->blend = (struct lp_blend_state *)blend;
+   llvmpipe->blend = blend;
 
    llvmpipe->dirty |= LP_NEW_BLEND;
 }
 
-void llvmpipe_delete_blend_state(struct pipe_context *pipe,
-                                 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);
-   }
 
+static void
+llvmpipe_delete_blend_state(struct pipe_context *pipe, void *blend)
+{
    FREE( blend );
 }
 
 
-void llvmpipe_set_blend_color( struct pipe_context *pipe,
-                            const struct pipe_blend_color *blend_color )
+static 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 < 16; ++j)
-         llvmpipe->blend_color[i][j] = float_to_ubyte(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;
 }
 
 
@@ -215,26 +106,102 @@ void llvmpipe_set_blend_color( struct pipe_context *pipe,
  */
 
 
-void *
+static void *
 llvmpipe_create_depth_stencil_state(struct pipe_context *pipe,
                                    const struct pipe_depth_stencil_alpha_state *depth_stencil)
 {
-   return mem_dup(depth_stencil, sizeof(*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;
 }
 
-void
+
+static void
 llvmpipe_bind_depth_stencil_state(struct pipe_context *pipe,
                                   void *depth_stencil)
 {
    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;
 }
 
-void
+
+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_SAMPLE_MASK;
+   }
+}
+
+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->dirty |= LP_NEW_SAMPLE_MASK;
+   llvmpipe->sample_mask = ~0;
+}