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Pica: Add debug utilities for dumping shaders.

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This commit is contained in:
Tony Wasserka 2014-08-14 14:30:38 +02:00
parent 6ea003c7b5
commit f37e39deb9
4 changed files with 227 additions and 1 deletions
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18
src/video_core/vertex_shader.cpp
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@ -4,6 +4,7 @@
#include "pica.h"
#include "vertex_shader.h"
#include "debug_utils/debug_utils.h"
#include <core/mem_map.h>
#include <common/file_util.h>
@ -50,6 +51,11 @@ struct VertexShaderState {
};
u32 call_stack[8]; // TODO: What is the maximal call stack depth?
u32* call_stack_pointer;
struct {
u32 max_offset; // maximum program counter ever reached
u32 max_opdesc_id; // maximum swizzle pattern index ever used
} debug;
};
static void ProcessShaderCode(VertexShaderState& state) {
@ -57,6 +63,7 @@ static void ProcessShaderCode(VertexShaderState& state) {
bool increment_pc = true;
bool exit_loop = false;
const Instruction& instr = *(const Instruction*)state.program_counter;
state.debug.max_offset = std::max<u32>(state.debug.max_offset, 1 + (state.program_counter - shader_memory));
const float24* src1_ = (instr.common.src1 < 0x10) ? state.input_register_table[instr.common.src1]
: (instr.common.src1 < 0x20) ? &state.temporary_registers[instr.common.src1-0x10].x
@ -88,6 +95,7 @@ static void ProcessShaderCode(VertexShaderState& state) {
switch (instr.opcode) {
case Instruction::OpCode::ADD:
{
state.debug.max_opdesc_id = std::max<u32>(state.debug.max_opdesc_id, 1+instr.common.operand_desc_id);
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
continue;
@ -100,6 +108,7 @@ static void ProcessShaderCode(VertexShaderState& state) {
case Instruction::OpCode::MUL:
{
state.debug.max_opdesc_id = std::max<u32>(state.debug.max_opdesc_id, 1+instr.common.operand_desc_id);
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
continue;
@ -113,6 +122,7 @@ static void ProcessShaderCode(VertexShaderState& state) {
case Instruction::OpCode::DP3:
case Instruction::OpCode::DP4:
{
state.debug.max_opdesc_id = std::max<u32>(state.debug.max_opdesc_id, 1+instr.common.operand_desc_id);
float24 dot = float24::FromFloat32(0.f);
int num_components = (instr.opcode == Instruction::OpCode::DP3) ? 3 : 4;
for (int i = 0; i < num_components; ++i)
@ -130,6 +140,7 @@ static void ProcessShaderCode(VertexShaderState& state) {
// Reciprocal
case Instruction::OpCode::RCP:
{
state.debug.max_opdesc_id = std::max<u32>(state.debug.max_opdesc_id, 1+instr.common.operand_desc_id);
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
continue;
@ -145,6 +156,7 @@ static void ProcessShaderCode(VertexShaderState& state) {
// Reciprocal Square Root
case Instruction::OpCode::RSQ:
{
state.debug.max_opdesc_id = std::max<u32>(state.debug.max_opdesc_id, 1+instr.common.operand_desc_id);
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
continue;
@ -159,6 +171,7 @@ static void ProcessShaderCode(VertexShaderState& state) {
case Instruction::OpCode::MOV:
{
state.debug.max_opdesc_id = std::max<u32>(state.debug.max_opdesc_id, 1+instr.common.operand_desc_id);
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
continue;
@ -212,6 +225,8 @@ OutputVertex RunShader(const InputVertex& input, int num_attributes)
const u32* main = &shader_memory[registers.vs_main_offset];
state.program_counter = (u32*)main;
state.debug.max_offset = 0;
state.debug.max_opdesc_id = 0;
// Setup input register table
const auto& attribute_register_map = registers.vs_input_register_map;
@ -255,6 +270,9 @@ OutputVertex RunShader(const InputVertex& input, int num_attributes)
state.call_stack_pointer = &state.call_stack[0];
ProcessShaderCode(state);
DebugUtils::DumpShader(shader_memory, state.debug.max_offset, swizzle_data,
state.debug.max_opdesc_id, registers.vs_main_offset,
registers.vs_output_attributes);
DEBUG_LOG(GPU, "Output vertex: pos (%.2f, %.2f, %.2f, %.2f), col(%.2f, %.2f, %.2f, %.2f), tc0(%.2f, %.2f)",
ret.pos.x.ToFloat32(), ret.pos.y.ToFloat32(), ret.pos.z.ToFloat32(), ret.pos.w.ToFloat32(),