diff options
Diffstat (limited to 'src/mesa/shader/nvprogram.c')
| -rw-r--r-- | src/mesa/shader/nvprogram.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/mesa/shader/nvprogram.c b/src/mesa/shader/nvprogram.c index fdb2f4210ad..471a7358a2f 100644 --- a/src/mesa/shader/nvprogram.c +++ b/src/mesa/shader/nvprogram.c @@ -509,7 +509,51 @@ _mesa_GetVertexAttribPointervNV(GLuint index, GLenum pname, GLvoid **pointer) *pointer = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[index].Ptr; } +void +_mesa_emit_nv_temp_initialization(GLcontext *ctx, + struct gl_program *program) +{ + struct prog_instruction *inst; + int i; + + if (!ctx->Shader.EmitNVTempInitialization) + return; + /* We'll swizzle up a zero temporary so we can use it for the + * ARL. + */ + if (program->NumTemporaries == 0) + program->NumTemporaries = 1; + + _mesa_insert_instructions(program, 0, program->NumTemporaries + 1); + + for (i = 0; i < program->NumTemporaries; i++) { + struct prog_instruction *inst = &program->Instructions[i]; + + inst->Opcode = OPCODE_SWZ; + inst->DstReg.File = PROGRAM_TEMPORARY; + inst->DstReg.Index = i; + inst->DstReg.WriteMask = WRITEMASK_XYZW; + inst->SrcReg[0].File = PROGRAM_TEMPORARY; + inst->SrcReg[0].Index = 0; + inst->SrcReg[0].Swizzle = MAKE_SWIZZLE4(SWIZZLE_ZERO, + SWIZZLE_ZERO, + SWIZZLE_ZERO, + SWIZZLE_ZERO); + } + + inst = &program->Instructions[i]; + inst->Opcode = OPCODE_ARL; + inst->DstReg.File = PROGRAM_ADDRESS; + inst->DstReg.Index = 0; + inst->DstReg.WriteMask = WRITEMASK_XYZW; + inst->SrcReg[0].File = PROGRAM_TEMPORARY; + inst->SrcReg[0].Index = 0; + inst->SrcReg[0].Swizzle = SWIZZLE_XXXX; + + if (program->NumAddressRegs == 0) + program->NumAddressRegs = 1; +} void _mesa_setup_nv_temporary_count(GLcontext *ctx, struct gl_program *program) |