From: Henri Verbeet <hverbeet@gmail.com>
Date: Tue, 17 Aug 2010 22:25:32 +0000 (-0400)
Subject: r600c: Handle reads from PROGRAM_OUTPUT
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8f5f44c9c8fa59e36efdf1acf3543ad81cb865d5;p=mesa.git

r600c: Handle reads from PROGRAM_OUTPUT

with glsl2, reads from outputs are legal
---

diff --git a/src/mesa/drivers/dri/r600/r700_assembler.c b/src/mesa/drivers/dri/r600/r700_assembler.c
index 9c954cbf70c..94bc26145d6 100644
--- a/src/mesa/drivers/dri/r600/r700_assembler.c
+++ b/src/mesa/drivers/dri/r600/r700_assembler.c
@@ -1357,7 +1357,7 @@ GLboolean assemble_src(r700_AssemblerBase *pAsm,
             break;      
         case PROGRAM_INPUT:
             setaddrmode_PVSSRC(&(pAsm->S[fld].src), ADDR_ABSOLUTE); 
-            pAsm->S[fld].src.rtype = SRC_REG_INPUT;
+            pAsm->S[fld].src.rtype = SRC_REG_GPR;
             switch (pAsm->currentShaderType)
             {
             case SPT_FP:
@@ -1368,6 +1368,19 @@ GLboolean assemble_src(r700_AssemblerBase *pAsm,
                 break;
             }
             break;      
+        case PROGRAM_OUTPUT:
+            setaddrmode_PVSSRC(&(pAsm->S[fld].src), ADDR_ABSOLUTE);
+            pAsm->S[fld].src.rtype = SRC_REG_GPR;
+            switch (pAsm->currentShaderType)
+            {
+            case SPT_FP:
+                pAsm->S[fld].src.reg = pAsm->uiFP_OutputMap[pILInst->SrcReg[src].Index];
+                break;
+            case SPT_VP:
+                pAsm->S[fld].src.reg = pAsm->ucVP_OutputMap[pILInst->SrcReg[src].Index];
+                break;
+            }
+            break;
         default:
             radeon_error("Invalid source argument type : %d \n", pILInst->SrcReg[src].File);
             return GL_FALSE;
@@ -1521,7 +1534,7 @@ GLboolean tex_src(r700_AssemblerBase *pAsm)
                         bValidTexCoord = GL_TRUE;
                         pAsm->S[0].src.reg   =
                             pAsm->ucVP_AttributeMap[pILInst->SrcReg[0].Index];
-                        pAsm->S[0].src.rtype = SRC_REG_INPUT;
+                        pAsm->S[0].src.rtype = SRC_REG_GPR;
                         break;
                 }
             }
@@ -1544,7 +1557,7 @@ GLboolean tex_src(r700_AssemblerBase *pAsm)
                         bValidTexCoord = GL_TRUE;
                         pAsm->S[0].src.reg   =
                             pAsm->uiFP_AttributeMap[pILInst->SrcReg[0].Index];
-                        pAsm->S[0].src.rtype = SRC_REG_INPUT;
+                        pAsm->S[0].src.rtype = SRC_REG_GPR;
                         break;
                     case FRAG_ATTRIB_FACE:
                         fprintf(stderr, "FRAG_ATTRIB_FACE unsupported\n");
@@ -1560,7 +1573,7 @@ GLboolean tex_src(r700_AssemblerBase *pAsm)
 				    bValidTexCoord = GL_TRUE;
                     pAsm->S[0].src.reg   =
                         pAsm->uiFP_AttributeMap[pILInst->SrcReg[0].Index];
-                    pAsm->S[0].src.rtype = SRC_REG_INPUT;
+                    pAsm->S[0].src.rtype = SRC_REG_GPR;
                 }
             }
 
@@ -1745,7 +1758,7 @@ GLboolean assemble_alu_src(R700ALUInstruction*  alu_instruction_ptr,
     else 
     {
         if ( (pSource->rtype == SRC_REG_TEMPORARY) || 
-             (pSource->rtype == SRC_REG_INPUT)
+             (pSource->rtype == SRC_REG_GPR)
         ) 
         {
             src_sel = pSource->reg;
@@ -2384,7 +2397,7 @@ GLboolean assemble_alu_instruction(r700_AssemblerBase *pAsm)
                     default: channel_swizzle = SQ_SEL_MASK; break;
                 }
                 if ( ((pSource[j]->rtype == SRC_REG_TEMPORARY) || 
-                     (pSource[j]->rtype == SRC_REG_INPUT))
+                     (pSource[j]->rtype == SRC_REG_GPR))
                      && (channel_swizzle <= SQ_SEL_W) )
                 {                    
                     chan_counter[channel_swizzle]++;                        
diff --git a/src/mesa/drivers/dri/r600/r700_assembler.h b/src/mesa/drivers/dri/r600/r700_assembler.h
index dbc6cdb1903..ab954ec143e 100644
--- a/src/mesa/drivers/dri/r600/r700_assembler.h
+++ b/src/mesa/drivers/dri/r600/r700_assembler.h
@@ -108,7 +108,7 @@ typedef enum AddressMode
 typedef enum SrcRegisterType 
 {
     SRC_REG_TEMPORARY      = 0,
-    SRC_REG_INPUT          = 1,
+    SRC_REG_GPR            = 1,
     SRC_REG_CONSTANT       = 2,
     SRC_REG_ALT_TEMPORARY  = 3,
     SRC_REC_LITERAL        = 4,