diff options
| -rw-r--r-- | src/mesa/shader/slang/slang_emit.c | 53 |
1 files changed, 43 insertions, 10 deletions
diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c index 2dd122c9a54..8eed1e3e9c3 100644 --- a/src/mesa/shader/slang/slang_emit.c +++ b/src/mesa/shader/slang/slang_emit.c @@ -451,7 +451,7 @@ emit_arl_load(slang_emit_info *emitInfo, struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_ARL); inst->SrcReg[0].File = file; inst->SrcReg[0].Index = index; - inst->SrcReg[0].Swizzle = swizzle; + inst->SrcReg[0].Swizzle = fix_swizzle(swizzle); inst->DstReg.File = PROGRAM_ADDRESS; inst->DstReg.Index = 0; inst->DstReg.WriteMask = WRITEMASK_X; @@ -873,6 +873,7 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) if (n->Children[0]->Store->Size != n->Children[1]->Store->Size) { slang_info_log_error(emitInfo->log, "invalid operands to == or !="); + n->Store = NULL; return NULL; } @@ -902,6 +903,7 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) slang_ir_storage tempStore; if (!alloc_local_temp(emitInfo, &tempStore, 4)) { + n->Store = NULL; return NULL; /* out of temps */ } @@ -1813,6 +1815,25 @@ emit_cont_break_if_true(slang_emit_info *emitInfo, slang_ir_node *n) } +/** + * Return the size of a swizzle mask given that some swizzle components + * may be NIL/undefined. For example: + * swizzle_size(".zzxx") = 4 + * swizzle_size(".xy??") = 2 + * swizzle_size(".xyz?") = 1 + */ +static GLuint +swizzle_size(GLuint swizzle) +{ + GLuint i; + for (i = 0; i < 4; i++) { + if (GET_SWZ(swizzle, i) == SWIZZLE_NIL) + return i; + } + return 4; +} + + static struct prog_instruction * emit_swizzle(slang_emit_info *emitInfo, slang_ir_node *n) { @@ -1820,14 +1841,24 @@ emit_swizzle(slang_emit_info *emitInfo, slang_ir_node *n) inst = emit(emitInfo, n->Children[0]); -#if 0 - assert(n->Store->Parent); - /* Apply this node's swizzle to parent's storage */ - GLuint swizzle = n->Store->Swizzle; - _slang_copy_ir_storage(n->Store, n->Store->Parent); - n->Store->Swizzle = _slang_swizzle_swizzle(n->Store->Swizzle, swizzle); - assert(!n->Store->Parent); -#endif + if (n->Children[0]->Opcode == IR_VAR || + n->Children[0]->Opcode == IR_SWIZZLE || + n->Children[0]->Opcode == IR_ELEMENT) { + /* We can resolve the swizzle now. Other swizzles will be resolved + * in storage_to_src_reg(). + */ + const GLuint swizzle = n->Store->Swizzle; + assert(n->Store->Parent); + /* new storage is parent storage with updated Swizzle + Size fields */ + _slang_copy_ir_storage(n->Store, n->Store->Parent); + /* Apply this node's swizzle to parent's storage */ + n->Store->Swizzle = _slang_swizzle_swizzle(n->Store->Swizzle, swizzle); + /* Update size */ + n->Store->Size = swizzle_size(n->Store->Swizzle); + assert(!n->Store->Parent); + assert(n->Store->Index >= 0); + } + return inst; } @@ -2428,7 +2459,9 @@ _slang_emit_code(slang_ir_node *n, slang_var_table *vt, maxUniforms = ctx->Const.VertexProgram.MaxUniformComponents / 4; } if (prog->Parameters->NumParameters > maxUniforms) { - slang_info_log_error(log, "Constant/uniform register limit exceeded"); + slang_info_log_error(log, "Constant/uniform register limit exceeded " + "(max=%u vec4)", maxUniforms); + return GL_FALSE; } |