purgatory/yuzu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Initial implementation of fragment shader generation with caching.

Browse Source
This commit is contained in:
Subv 2015-07-25 20:13:11 -05:00 committed by bunnei
parent 7411aed5c7
commit e3f4233cef
7 changed files with 579 additions and 272 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/video_core/pica.h
View File

@ -317,6 +317,7 @@ struct Regs {
};
union {
u32 source_raw;
BitField< 0, 4, Source> color_source1;
BitField< 4, 4, Source> color_source2;
BitField< 8, 4, Source> color_source3;
@ -326,6 +327,7 @@ struct Regs {
};
union {
u32 modifier_raw;
BitField< 0, 4, ColorModifier> color_modifier1;
BitField< 4, 4, ColorModifier> color_modifier2;
BitField< 8, 4, ColorModifier> color_modifier3;
@ -335,6 +337,7 @@ struct Regs {
};
union {
u32 op_raw;
BitField< 0, 4, Operation> color_op;
BitField<16, 4, Operation> alpha_op;
};
@ -348,6 +351,7 @@ struct Regs {
};
union {
u32 scale_raw;
BitField< 0, 2, u32> color_scale;
BitField<16, 2, u32> alpha_scale;
};

371
src/video_core/renderer_opengl/gl_rasterizer.cpp
View File

@ -8,6 +8,7 @@
#include <glad/glad.h>
#include "common/color.h"
#include "common/file_util.h"
#include "common/math_util.h"
#include "common/microprofile.h"
#include "common/profiler.h"
@ -38,36 +39,6 @@ RasterizerOpenGL::RasterizerOpenGL() : last_fb_color_addr(0), last_fb_depth_addr
RasterizerOpenGL::~RasterizerOpenGL() { }
void RasterizerOpenGL::InitObjects() {
// Create the hardware shader program and get attrib/uniform locations
shader.Create(GLShaders::g_vertex_shader_hw, GLShaders::g_fragment_shader_hw);
attrib_position = glGetAttribLocation(shader.handle, "vert_position");
attrib_color = glGetAttribLocation(shader.handle, "vert_color");
attrib_texcoords = glGetAttribLocation(shader.handle, "vert_texcoords");
uniform_alphatest_enabled = glGetUniformLocation(shader.handle, "alphatest_enabled");
uniform_alphatest_func = glGetUniformLocation(shader.handle, "alphatest_func");
uniform_alphatest_ref = glGetUniformLocation(shader.handle, "alphatest_ref");
uniform_tex = glGetUniformLocation(shader.handle, "tex");
uniform_tev_combiner_buffer_color = glGetUniformLocation(shader.handle, "tev_combiner_buffer_color");
const auto tev_stages = Pica::g_state.regs.GetTevStages();
for (unsigned tev_stage_index = 0; tev_stage_index < tev_stages.size(); ++tev_stage_index) {
auto& uniform_tev_cfg = uniform_tev_cfgs[tev_stage_index];
std::string tev_ref_str = "tev_cfgs[" + std::to_string(tev_stage_index) + "]";
uniform_tev_cfg.enabled = glGetUniformLocation(shader.handle, (tev_ref_str + ".enabled").c_str());
uniform_tev_cfg.color_sources = glGetUniformLocation(shader.handle, (tev_ref_str + ".color_sources").c_str());
uniform_tev_cfg.alpha_sources = glGetUniformLocation(shader.handle, (tev_ref_str + ".alpha_sources").c_str());
uniform_tev_cfg.color_modifiers = glGetUniformLocation(shader.handle, (tev_ref_str + ".color_modifiers").c_str());
uniform_tev_cfg.alpha_modifiers = glGetUniformLocation(shader.handle, (tev_ref_str + ".alpha_modifiers").c_str());
uniform_tev_cfg.color_alpha_op = glGetUniformLocation(shader.handle, (tev_ref_str + ".color_alpha_op").c_str());
uniform_tev_cfg.color_alpha_multiplier = glGetUniformLocation(shader.handle, (tev_ref_str + ".color_alpha_multiplier").c_str());
uniform_tev_cfg.const_color = glGetUniformLocation(shader.handle, (tev_ref_str + ".const_color").c_str());
uniform_tev_cfg.updates_combiner_buffer_color_alpha = glGetUniformLocation(shader.handle, (tev_ref_str + ".updates_combiner_buffer_color_alpha").c_str());
}
// Create sampler objects
for (size_t i = 0; i < texture_samplers.size(); ++i) {
texture_samplers[i].Create();
@ -78,29 +49,25 @@ void RasterizerOpenGL::InitObjects() {
vertex_buffer.Create();
vertex_array.Create();
// Update OpenGL state
state.draw.vertex_array = vertex_array.handle;
state.draw.vertex_buffer = vertex_buffer.handle;
state.draw.shader_program = shader.handle;
state.Apply();
// Set the texture samplers to correspond to different texture units
glUniform1i(uniform_tex, 0);
glUniform1i(uniform_tex + 1, 1);
glUniform1i(uniform_tex + 2, 2);
// Set vertex attributes
glVertexAttribPointer(attrib_position, 4, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, position));
glVertexAttribPointer(attrib_color, 4, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, color));
glVertexAttribPointer(attrib_texcoords, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord0));
glVertexAttribPointer(attrib_texcoords + 1, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord1));
glVertexAttribPointer(attrib_texcoords + 2, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord2));
glEnableVertexAttribArray(attrib_position);
glEnableVertexAttribArray(attrib_color);
glEnableVertexAttribArray(attrib_texcoords);
glEnableVertexAttribArray(attrib_texcoords + 1);
glEnableVertexAttribArray(attrib_texcoords + 2);
glVertexAttribPointer(ShaderUtil::ATTRIBUTE_POSITION, 4, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, position));
glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_POSITION);
glVertexAttribPointer(ShaderUtil::ATTRIBUTE_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, color));
glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_COLOR);
glVertexAttribPointer(ShaderUtil::ATTRIBUTE_TEXCOORDS, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord0));
glVertexAttribPointer(ShaderUtil::ATTRIBUTE_TEXCOORDS + 1, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord1));
glVertexAttribPointer(ShaderUtil::ATTRIBUTE_TEXCOORDS + 2, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord2));
glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_TEXCOORDS);
glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_TEXCOORDS + 1);
glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_TEXCOORDS + 2);
RegenerateShaders();
// Create textures for OGL framebuffer that will be rendered to, initially 1x1 to succeed in framebuffer creation
fb_color_texture.texture.Create();
@ -156,55 +123,11 @@ void RasterizerOpenGL::Reset() {
SyncBlendEnabled();
SyncBlendFuncs();
SyncBlendColor();
SyncAlphaTest();
SyncLogicOp();
SyncStencilTest();
SyncDepthTest();
// TEV stage 0
SyncTevSources(0, regs.tev_stage0);
SyncTevModifiers(0, regs.tev_stage0);
SyncTevOps(0, regs.tev_stage0);
SyncTevColor(0, regs.tev_stage0);
SyncTevMultipliers(0, regs.tev_stage0);
// TEV stage 1
SyncTevSources(1, regs.tev_stage1);
SyncTevModifiers(1, regs.tev_stage1);
SyncTevOps(1, regs.tev_stage1);
SyncTevColor(1, regs.tev_stage1);
SyncTevMultipliers(1, regs.tev_stage1);
// TEV stage 2
SyncTevSources(2, regs.tev_stage2);
SyncTevModifiers(2, regs.tev_stage2);
SyncTevOps(2, regs.tev_stage2);
SyncTevColor(2, regs.tev_stage2);
SyncTevMultipliers(2, regs.tev_stage2);
// TEV stage 3
SyncTevSources(3, regs.tev_stage3);
SyncTevModifiers(3, regs.tev_stage3);
SyncTevOps(3, regs.tev_stage3);
SyncTevColor(3, regs.tev_stage3);
SyncTevMultipliers(3, regs.tev_stage3);
// TEV stage 4
SyncTevSources(4, regs.tev_stage4);
SyncTevModifiers(4, regs.tev_stage4);
SyncTevOps(4, regs.tev_stage4);
SyncTevColor(4, regs.tev_stage4);
SyncTevMultipliers(4, regs.tev_stage4);
// TEV stage 5
SyncTevSources(5, regs.tev_stage5);
SyncTevModifiers(5, regs.tev_stage5);
SyncTevOps(5, regs.tev_stage5);
SyncTevColor(5, regs.tev_stage5);
SyncTevMultipliers(5, regs.tev_stage5);
SyncCombinerColor();
SyncCombinerWriteFlags();
RegenerateShaders();
res_cache.FullFlush();
}
@ -217,10 +140,88 @@ void RasterizerOpenGL::AddTriangle(const Pica::Shader::OutputVertex& v0,
vertex_batch.emplace_back(v2);
}
namespace ShaderCache {
extern std::string GenerateFragmentShader(const ShaderCacheKey& config);
}
void RasterizerOpenGL::RegenerateShaders() {
const auto& regs = Pica::g_state.regs;
ShaderCacheKey config;
config.alpha_test_func = regs.output_merger.alpha_test.enable ?
regs.output_merger.alpha_test.func.Value() : Pica::Regs::CompareFunc::Always;
config.tev_stages = regs.GetTevStages();
for (auto& tev : config.tev_stages) {
tev.const_r = 0;
tev.const_g = 0;
tev.const_b = 0;
tev.const_a = 0;
}
config.combiner_buffer_input =
regs.tev_combiner_buffer_input.update_mask_rgb.Value() |
regs.tev_combiner_buffer_input.update_mask_a.Value() << 4;
auto cached_shader = shader_cache.find(config);
if (cached_shader != shader_cache.end()) {
current_shader = &cached_shader->second;
state.draw.shader_program = current_shader->shader.handle;
state.Apply();
} else {
LOG_CRITICAL(Render_OpenGL, "Creating new shader: %08X", hash(config));
TEVShader shader;
std::string fragShader = ShaderCache::GenerateFragmentShader(config);
shader.shader.Create(GLShaders::g_vertex_shader_hw, fragShader.c_str());
shader.uniform_alphatest_ref = glGetUniformLocation(shader.shader.handle, "alphatest_ref");
shader.uniform_tex = glGetUniformLocation(shader.shader.handle, "tex");
shader.uniform_tev_combiner_buffer_color = glGetUniformLocation(shader.shader.handle, "tev_combiner_buffer_color");
shader.uniform_tev_const_colors = glGetUniformLocation(shader.shader.handle, "const_color");
current_shader = &shader_cache.emplace(config, std::move(shader)).first->second;
state.draw.shader_program = current_shader->shader.handle;
state.Apply();
// Set the texture samplers to correspond to different texture units
if (shader.uniform_tex != -1) {
glUniform1i(shader.uniform_tex, 0);
glUniform1i(shader.uniform_tex + 1, 1);
glUniform1i(shader.uniform_tex + 2, 2);
}
}
// Sync alpha reference
if (current_shader->uniform_alphatest_ref != -1)
glUniform1f(current_shader->uniform_alphatest_ref, regs.output_merger.alpha_test.ref / 255.0f);
// Sync combiner buffer color
if (current_shader->uniform_tev_combiner_buffer_color != -1) {
auto combiner_color = PicaToGL::ColorRGBA8(Pica::g_state.regs.tev_combiner_buffer_color.raw);
glUniform4fv(current_shader->uniform_tev_combiner_buffer_color, 1, combiner_color.data());
}
// Sync TEV const colors
if (current_shader->uniform_tev_const_colors != -1) {
auto& tev_stages = Pica::g_state.regs.GetTevStages();
for (int tev_index = 0; tev_index < tev_stages.size(); ++tev_index) {
auto const_color = PicaToGL::ColorRGBA8(tev_stages[tev_index].const_color);
glUniform4fv(current_shader->uniform_tev_const_colors + tev_index, 1, const_color.data());
}
}
}
void RasterizerOpenGL::DrawTriangles() {
SyncFramebuffer();
SyncDrawState();
if (state.draw.shader_dirty) {
RegenerateShaders();
state.draw.shader_dirty = false;
}
glBufferData(GL_ARRAY_BUFFER, vertex_batch.size() * sizeof(HardwareVertex), vertex_batch.data(), GL_STREAM_DRAW);
glDrawArrays(GL_TRIANGLES, 0, (GLsizei)vertex_batch.size());
@ -272,6 +273,7 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
// Alpha test
case PICA_REG_INDEX(output_merger.alpha_test):
SyncAlphaTest();
state.draw.shader_dirty = true;
break;
// Stencil test
@ -290,117 +292,57 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
SyncLogicOp();
break;
// TEV stage 0
// TEV stages
case PICA_REG_INDEX(tev_stage0.color_source1):
SyncTevSources(0, regs.tev_stage0);
break;
case PICA_REG_INDEX(tev_stage0.color_modifier1):
SyncTevModifiers(0, regs.tev_stage0);
break;
case PICA_REG_INDEX(tev_stage0.color_op):
SyncTevOps(0, regs.tev_stage0);
case PICA_REG_INDEX(tev_stage0.color_scale):
case PICA_REG_INDEX(tev_stage1.color_source1):
case PICA_REG_INDEX(tev_stage1.color_modifier1):
case PICA_REG_INDEX(tev_stage1.color_op):
case PICA_REG_INDEX(tev_stage1.color_scale):
case PICA_REG_INDEX(tev_stage2.color_source1):
case PICA_REG_INDEX(tev_stage2.color_modifier1):
case PICA_REG_INDEX(tev_stage2.color_op):
case PICA_REG_INDEX(tev_stage2.color_scale):
case PICA_REG_INDEX(tev_stage3.color_source1):
case PICA_REG_INDEX(tev_stage3.color_modifier1):
case PICA_REG_INDEX(tev_stage3.color_op):
case PICA_REG_INDEX(tev_stage3.color_scale):
case PICA_REG_INDEX(tev_stage4.color_source1):
case PICA_REG_INDEX(tev_stage4.color_modifier1):
case PICA_REG_INDEX(tev_stage4.color_op):
case PICA_REG_INDEX(tev_stage4.color_scale):
case PICA_REG_INDEX(tev_stage5.color_source1):
case PICA_REG_INDEX(tev_stage5.color_modifier1):
case PICA_REG_INDEX(tev_stage5.color_op):
case PICA_REG_INDEX(tev_stage5.color_scale):
case PICA_REG_INDEX(tev_combiner_buffer_input):
state.draw.shader_dirty = true;
break;
case PICA_REG_INDEX(tev_stage0.const_r):
SyncTevColor(0, regs.tev_stage0);
break;
case PICA_REG_INDEX(tev_stage0.color_scale):
SyncTevMultipliers(0, regs.tev_stage0);
break;
// TEV stage 1
case PICA_REG_INDEX(tev_stage1.color_source1):
SyncTevSources(1, regs.tev_stage1);
break;
case PICA_REG_INDEX(tev_stage1.color_modifier1):
SyncTevModifiers(1, regs.tev_stage1);
break;
case PICA_REG_INDEX(tev_stage1.color_op):
SyncTevOps(1, regs.tev_stage1);
SyncTevConstColor(0, regs.tev_stage0);
break;
case PICA_REG_INDEX(tev_stage1.const_r):
SyncTevColor(1, regs.tev_stage1);
break;
case PICA_REG_INDEX(tev_stage1.color_scale):
SyncTevMultipliers(1, regs.tev_stage1);
break;
// TEV stage 2
case PICA_REG_INDEX(tev_stage2.color_source1):
SyncTevSources(2, regs.tev_stage2);
break;
case PICA_REG_INDEX(tev_stage2.color_modifier1):
SyncTevModifiers(2, regs.tev_stage2);
break;
case PICA_REG_INDEX(tev_stage2.color_op):
SyncTevOps(2, regs.tev_stage2);
SyncTevConstColor(1, regs.tev_stage0);
break;
case PICA_REG_INDEX(tev_stage2.const_r):
SyncTevColor(2, regs.tev_stage2);
break;
case PICA_REG_INDEX(tev_stage2.color_scale):
SyncTevMultipliers(2, regs.tev_stage2);
break;
// TEV stage 3
case PICA_REG_INDEX(tev_stage3.color_source1):
SyncTevSources(3, regs.tev_stage3);
break;
case PICA_REG_INDEX(tev_stage3.color_modifier1):
SyncTevModifiers(3, regs.tev_stage3);
break;
case PICA_REG_INDEX(tev_stage3.color_op):
SyncTevOps(3, regs.tev_stage3);
SyncTevConstColor(2, regs.tev_stage0);
break;
case PICA_REG_INDEX(tev_stage3.const_r):
SyncTevColor(3, regs.tev_stage3);
break;
case PICA_REG_INDEX(tev_stage3.color_scale):
SyncTevMultipliers(3, regs.tev_stage3);
break;
// TEV stage 4
case PICA_REG_INDEX(tev_stage4.color_source1):
SyncTevSources(4, regs.tev_stage4);
break;
case PICA_REG_INDEX(tev_stage4.color_modifier1):
SyncTevModifiers(4, regs.tev_stage4);
break;
case PICA_REG_INDEX(tev_stage4.color_op):
SyncTevOps(4, regs.tev_stage4);
SyncTevConstColor(3, regs.tev_stage0);
break;
case PICA_REG_INDEX(tev_stage4.const_r):
SyncTevColor(4, regs.tev_stage4);
break;
case PICA_REG_INDEX(tev_stage4.color_scale):
SyncTevMultipliers(4, regs.tev_stage4);
break;
// TEV stage 5
case PICA_REG_INDEX(tev_stage5.color_source1):
SyncTevSources(5, regs.tev_stage5);
break;
case PICA_REG_INDEX(tev_stage5.color_modifier1):
SyncTevModifiers(5, regs.tev_stage5);
break;
case PICA_REG_INDEX(tev_stage5.color_op):
SyncTevOps(5, regs.tev_stage5);
SyncTevConstColor(4, regs.tev_stage0);
break;
case PICA_REG_INDEX(tev_stage5.const_r):
SyncTevColor(5, regs.tev_stage5);
break;
case PICA_REG_INDEX(tev_stage5.color_scale):
SyncTevMultipliers(5, regs.tev_stage5);
SyncTevConstColor(5, regs.tev_stage0);
break;
// TEV combiner buffer color
case PICA_REG_INDEX(tev_combiner_buffer_color):
SyncCombinerColor();
break;
// TEV combiner buffer write flags
case PICA_REG_INDEX(tev_combiner_buffer_input):
SyncCombinerWriteFlags();
break;
}
}
@ -712,9 +654,8 @@ void RasterizerOpenGL::SyncBlendColor() {
void RasterizerOpenGL::SyncAlphaTest() {
const auto& regs = Pica::g_state.regs;
glUniform1i(uniform_alphatest_enabled, regs.output_merger.alpha_test.enable);
glUniform1i(uniform_alphatest_func, (GLint)regs.output_merger.alpha_test.func.Value());
glUniform1f(uniform_alphatest_ref, regs.output_merger.alpha_test.ref / 255.0f);
if (current_shader->uniform_alphatest_ref != -1)
glUniform1f(current_shader->uniform_alphatest_ref, regs.output_merger.alpha_test.ref / 255.0f);
}
void RasterizerOpenGL::SyncLogicOp() {
@ -744,55 +685,17 @@ void RasterizerOpenGL::SyncDepthTest() {
state.depth.write_mask = regs.output_merger.depth_write_enable ? GL_TRUE : GL_FALSE;
}
void RasterizerOpenGL::SyncTevSources(unsigned stage_index, const Pica::Regs::TevStageConfig& config) {
GLint color_srcs[3] = { (GLint)config.color_source1.Value(),
(GLint)config.color_source2.Value(),
(GLint)config.color_source3.Value() };
GLint alpha_srcs[3] = { (GLint)config.alpha_source1.Value(),
(GLint)config.alpha_source2.Value(),
(GLint)config.alpha_source3.Value() };
glUniform3iv(uniform_tev_cfgs[stage_index].color_sources, 1, color_srcs);
glUniform3iv(uniform_tev_cfgs[stage_index].alpha_sources, 1, alpha_srcs);
}
void RasterizerOpenGL::SyncTevModifiers(unsigned stage_index, const Pica::Regs::TevStageConfig& config) {
GLint color_mods[3] = { (GLint)config.color_modifier1.Value(),
(GLint)config.color_modifier2.Value(),
(GLint)config.color_modifier3.Value() };
GLint alpha_mods[3] = { (GLint)config.alpha_modifier1.Value(),
(GLint)config.alpha_modifier2.Value(),
(GLint)config.alpha_modifier3.Value() };
glUniform3iv(uniform_tev_cfgs[stage_index].color_modifiers, 1, color_mods);
glUniform3iv(uniform_tev_cfgs[stage_index].alpha_modifiers, 1, alpha_mods);
}
void RasterizerOpenGL::SyncTevOps(unsigned stage_index, const Pica::Regs::TevStageConfig& config) {
glUniform2i(uniform_tev_cfgs[stage_index].color_alpha_op, (GLint)config.color_op.Value(), (GLint)config.alpha_op.Value());
}
void RasterizerOpenGL::SyncTevColor(unsigned stage_index, const Pica::Regs::TevStageConfig& config) {
auto const_color = PicaToGL::ColorRGBA8(config.const_color);
glUniform4fv(uniform_tev_cfgs[stage_index].const_color, 1, const_color.data());
}
void RasterizerOpenGL::SyncTevMultipliers(unsigned stage_index, const Pica::Regs::TevStageConfig& config) {
glUniform2i(uniform_tev_cfgs[stage_index].color_alpha_multiplier, config.GetColorMultiplier(), config.GetAlphaMultiplier());
}
void RasterizerOpenGL::SyncCombinerColor() {
if (current_shader->uniform_tev_combiner_buffer_color != -1) {
auto combiner_color = PicaToGL::ColorRGBA8(Pica::g_state.regs.tev_combiner_buffer_color.raw);
glUniform4fv(uniform_tev_combiner_buffer_color, 1, combiner_color.data());
glUniform4fv(current_shader->uniform_tev_combiner_buffer_color, 1, combiner_color.data());
}
}
void RasterizerOpenGL::SyncCombinerWriteFlags() {
const auto& regs = Pica::g_state.regs;
const auto tev_stages = regs.GetTevStages();
for (unsigned tev_stage_index = 0; tev_stage_index < tev_stages.size(); ++tev_stage_index) {
glUniform2i(uniform_tev_cfgs[tev_stage_index].updates_combiner_buffer_color_alpha,
regs.tev_combiner_buffer_input.TevStageUpdatesCombinerBufferColor(tev_stage_index),
regs.tev_combiner_buffer_input.TevStageUpdatesCombinerBufferAlpha(tev_stage_index));
void RasterizerOpenGL::SyncTevConstColor(int stage_index, const Pica::Regs::TevStageConfig& tev_stage) {
if (current_shader->uniform_tev_const_colors != -1) {
auto const_color = PicaToGL::ColorRGBA8(tev_stage.const_color);
glUniform4fv(current_shader->uniform_tev_const_colors + stage_index, 1, const_color.data());
}
}
@ -824,12 +727,6 @@ void RasterizerOpenGL::SyncDrawState() {
}
}
// Skip processing TEV stages that simply pass the previous stage results through
const auto tev_stages = regs.GetTevStages();
for (unsigned tev_stage_index = 0; tev_stage_index < tev_stages.size(); ++tev_stage_index) {
glUniform1i(uniform_tev_cfgs[tev_stage_index].enabled, !IsPassThroughTevStage(tev_stages[tev_stage_index]));
}
state.Apply();
}

110
src/video_core/renderer_opengl/gl_rasterizer.h
View File

@ -5,6 +5,7 @@
#pragma once
#include <vector>
#include <unordered_map>
#include "common/common_types.h"
@ -13,6 +14,60 @@
#include "video_core/renderer_opengl/gl_state.h"
#include "video_core/shader/shader_interpreter.h"
template <typename T>
inline size_t hash(const T& o) {
return std::hash<T>()(o);
}
template <typename T>
inline size_t combine_hash(const T& o) {
return hash(o);
}
template <typename T, typename... Args>
inline size_t combine_hash(const T& o, const Args&... args) {
return hash(o) * 3 + combine_hash(args...);
}
struct ShaderCacheKey {
using Regs = Pica::Regs;
bool operator ==(const ShaderCacheKey& o) const {
return hash(*this) == hash(o);
};
Regs::CompareFunc alpha_test_func;
std::array<Regs::TevStageConfig, 6> tev_stages;
u8 combiner_buffer_input;
bool TevStageUpdatesCombinerBufferColor(unsigned stage_index) const {
return (stage_index < 4) && (combiner_buffer_input & (1 << stage_index));
}
bool TevStageUpdatesCombinerBufferAlpha(unsigned stage_index) const {
return (stage_index < 4) && ((combiner_buffer_input >> 4) & (1 << stage_index));
}
};
namespace std {
template<> struct hash<::Pica::Regs::TevStageConfig> {
size_t operator()(const ::Pica::Regs::TevStageConfig& o) {
return ::combine_hash(
::hash(o.source_raw), ::hash(o.modifier_raw),
::hash(o.op_raw), ::hash(o.scale_raw));
}
};
template<> struct hash<::ShaderCacheKey> {
size_t operator()(const ::ShaderCacheKey& o) const {
return ::combine_hash(o.alpha_test_func, o.combiner_buffer_input,
o.tev_stages[0], o.tev_stages[1], o.tev_stages[2],
o.tev_stages[3], o.tev_stages[4], o.tev_stages[5]);
}
};
}
class RasterizerOpenGL : public HWRasterizer {
public:
@ -33,6 +88,8 @@ public:
/// Draw the current batch of triangles
void DrawTriangles() override;
void RegenerateShaders();
/// Commit the rasterizer's framebuffer contents immediately to the current 3DS memory framebuffer
void CommitFramebuffer() override;
@ -59,6 +116,22 @@ private:
GLuint updates_combiner_buffer_color_alpha;
};
struct TEVShader {
OGLShader shader;
// Hardware fragment shader
GLuint uniform_alphatest_ref;
GLuint uniform_tex;
GLuint uniform_tev_combiner_buffer_color;
GLuint uniform_tev_const_colors;
TEVShader() = default;
TEVShader(TEVShader&& o) : shader(std::move(o.shader)),
uniform_alphatest_ref(o.uniform_alphatest_ref), uniform_tex(o.uniform_tex),
uniform_tev_combiner_buffer_color(o.uniform_tev_combiner_buffer_color),
uniform_tev_const_colors(o.uniform_tev_const_colors) {}
};
/// Structure used for storing information about color textures
struct TextureInfo {
OGLTexture texture;
@ -156,27 +229,12 @@ private:
/// Syncs the depth test states to match the PICA register
void SyncDepthTest();
/// Syncs the specified TEV stage's color and alpha sources to match the PICA register
void SyncTevSources(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the specified TEV stage's color and alpha modifiers to match the PICA register
void SyncTevModifiers(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the specified TEV stage's color and alpha combiner operations to match the PICA register
void SyncTevOps(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the specified TEV stage's constant color to match the PICA register
void SyncTevColor(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the specified TEV stage's color and alpha multipliers to match the PICA register
void SyncTevMultipliers(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the TEV constant color to match the PICA register
void SyncTevConstColor(int tev_index, const Pica::Regs::TevStageConfig& tev_stage);
/// Syncs the TEV combiner color buffer to match the PICA register
void SyncCombinerColor();
/// Syncs the TEV combiner write flags to match the PICA register
void SyncCombinerWriteFlags();
/// Syncs the remaining OpenGL drawing state to match the current PICA state
void SyncDrawState();
@ -213,21 +271,11 @@ private:
std::array<SamplerInfo, 3> texture_samplers;
TextureInfo fb_color_texture;
DepthTextureInfo fb_depth_texture;
OGLShader shader;
std::unordered_map<ShaderCacheKey, TEVShader> shader_cache;
TEVShader* current_shader = nullptr;
OGLVertexArray vertex_array;
OGLBuffer vertex_buffer;
OGLFramebuffer framebuffer;
// Hardware vertex shader
GLuint attrib_position;
GLuint attrib_color;
GLuint attrib_texcoords;
// Hardware fragment shader
GLuint uniform_alphatest_enabled;
GLuint uniform_alphatest_func;
GLuint uniform_alphatest_ref;
GLuint uniform_tex;
GLuint uniform_tev_combiner_buffer_color;
TEVConfigUniforms uniform_tev_cfgs[6];
};

349
src/video_core/renderer_opengl/gl_shader_util.cpp
View File

@ -2,6 +2,13 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "gl_shader_util.h"
#include "gl_rasterizer.h"
#include "common/logging/log.h"
#include "video_core/pica.h"
#include <algorithm>
#include <vector>
@ -65,6 +72,13 @@ GLuint LoadShaders(const char* vertex_shader, const char* fragment_shader) {
GLuint program_id = glCreateProgram();
glAttachShader(program_id, vertex_shader_id);
glAttachShader(program_id, fragment_shader_id);
glBindAttribLocation(program_id, Attributes::ATTRIBUTE_POSITION, "vert_position");
glBindAttribLocation(program_id, Attributes::ATTRIBUTE_COLOR, "vert_color");
glBindAttribLocation(program_id, Attributes::ATTRIBUTE_TEXCOORDS + 0, "vert_texcoords0");
glBindAttribLocation(program_id, Attributes::ATTRIBUTE_TEXCOORDS + 1, "vert_texcoords1");
glBindAttribLocation(program_id, Attributes::ATTRIBUTE_TEXCOORDS + 2, "vert_texcoords2");
glLinkProgram(program_id);
// Check the program
@ -88,3 +102,338 @@ GLuint LoadShaders(const char* vertex_shader, const char* fragment_shader) {
}
}
namespace ShaderCache
{
static bool IsPassThroughTevStage(const Pica::Regs::TevStageConfig& stage) {
return (stage.color_op == Pica::Regs::TevStageConfig::Operation::Replace &&
stage.alpha_op == Pica::Regs::TevStageConfig::Operation::Replace &&
stage.color_source1 == Pica::Regs::TevStageConfig::Source::Previous &&
stage.alpha_source1 == Pica::Regs::TevStageConfig::Source::Previous &&
stage.color_modifier1 == Pica::Regs::TevStageConfig::ColorModifier::SourceColor &&
stage.alpha_modifier1 == Pica::Regs::TevStageConfig::AlphaModifier::SourceAlpha &&
stage.GetColorMultiplier() == 1 &&
stage.GetAlphaMultiplier() == 1);
}
void AppendSource(std::string& shader, Pica::Regs::TevStageConfig::Source source, const std::string& index_name) {
using Source = Pica::Regs::TevStageConfig::Source;
switch (source) {
case Source::PrimaryColor:
shader += "o[2]";
break;
case Source::PrimaryFragmentColor:
// HACK: Until we implement fragment lighting, use primary_color
shader += "o[2]";
break;
case Source::SecondaryFragmentColor:
// HACK: Until we implement fragment lighting, use zero
shader += "vec4(0.0, 0.0, 0.0, 0.0)";
break;
case Source::Texture0:
shader += "texture(tex[0], o[3].xy)";
break;
case Source::Texture1:
shader += "texture(tex[1], o[3].zw)";
break;
case Source::Texture2: // TODO: Unverified
shader += "texture(tex[2], o[5].zw)";
break;
case Source::PreviousBuffer:
shader += "g_combiner_buffer";
break;
case Source::Constant:
shader += "const_color[" + index_name + "]";
break;
case Source::Previous:
shader += "g_last_tex_env_out";
break;
default:
shader += "vec4(0.0)";
LOG_CRITICAL(Render_OpenGL, "Unknown source op %u", source);
break;
}
}
void AppendColorModifier(std::string& shader, Pica::Regs::TevStageConfig::ColorModifier modifier, Pica::Regs::TevStageConfig::Source source, const std::string& index_name) {
using ColorModifier = Pica::Regs::TevStageConfig::ColorModifier;
switch (modifier) {
case ColorModifier::SourceColor:
AppendSource(shader, source, index_name);
shader += ".rgb";
break;
case ColorModifier::OneMinusSourceColor:
shader += "vec3(1.0) - ";
AppendSource(shader, source, index_name);
shader += ".rgb";
break;
case ColorModifier::SourceAlpha:
AppendSource(shader, source, index_name);
shader += ".aaa";
break;
case ColorModifier::OneMinusSourceAlpha:
shader += "vec3(1.0) - ";
AppendSource(shader, source, index_name);
shader += ".aaa";
break;
case ColorModifier::SourceRed:
AppendSource(shader, source, index_name);
shader += ".rrr";
break;
case ColorModifier::OneMinusSourceRed:
shader += "vec3(1.0) - ";
AppendSource(shader, source, index_name);
shader += ".rrr";
break;
case ColorModifier::SourceGreen:
AppendSource(shader, source, index_name);
shader += ".ggg";
break;
case ColorModifier::OneMinusSourceGreen:
shader += "vec3(1.0) - ";
AppendSource(shader, source, index_name);
shader += ".ggg";
break;
case ColorModifier::SourceBlue:
AppendSource(shader, source, index_name);
shader += ".bbb";
break;
case ColorModifier::OneMinusSourceBlue:
shader += "vec3(1.0) - ";
AppendSource(shader, source, index_name);
shader += ".bbb";
break;
default:
shader += "vec3(0.0)";
LOG_CRITICAL(Render_OpenGL, "Unknown color modifier op %u", modifier);
break;
}
}
void AppendAlphaModifier(std::string& shader, Pica::Regs::TevStageConfig::AlphaModifier modifier, Pica::Regs::TevStageConfig::Source source, const std::string& index_name) {
using AlphaModifier = Pica::Regs::TevStageConfig::AlphaModifier;
switch (modifier) {
case AlphaModifier::SourceAlpha:
AppendSource(shader, source, index_name);
shader += ".a";
break;
case AlphaModifier::OneMinusSourceAlpha:
shader += "1.0 - ";
AppendSource(shader, source, index_name);
shader += ".a";
break;
case AlphaModifier::SourceRed:
AppendSource(shader, source, index_name);
shader += ".r";
break;
case AlphaModifier::OneMinusSourceRed:
shader += "1.0 - ";
AppendSource(shader, source, index_name);
shader += ".r";
break;
case AlphaModifier::SourceGreen:
AppendSource(shader, source, index_name);
shader += ".g";
break;
case AlphaModifier::OneMinusSourceGreen:
shader += "1.0 - ";
AppendSource(shader, source, index_name);
shader += ".g";
break;
case AlphaModifier::SourceBlue:
AppendSource(shader, source, index_name);
shader += ".b";
break;
case AlphaModifier::OneMinusSourceBlue:
shader += "1.0 - ";
AppendSource(shader, source, index_name);
shader += ".b";
break;
default:
shader += "vec3(0.0)";
LOG_CRITICAL(Render_OpenGL, "Unknown alpha modifier op %u", modifier);
break;
}
}
void AppendColorCombiner(std::string& shader, Pica::Regs::TevStageConfig::Operation operation, const std::string& variable_name) {
using Operation = Pica::Regs::TevStageConfig::Operation;
switch (operation) {
case Operation::Replace:
shader += variable_name + "[0]";
break;
case Operation::Modulate:
shader += variable_name + "[0] * " + variable_name + "[1]";
break;
case Operation::Add:
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], 1.0)";
break;
case Operation::AddSigned:
shader += "clamp(" + variable_name + "[0] + " + variable_name + "[1] - vec3(0.5), 0.0, 1.0)";
break;
case Operation::Lerp:
shader += variable_name + "[0] * " + variable_name + "[2] + " + variable_name + "[1] * (vec3(1.0) - " + variable_name + "[2])";
break;
case Operation::Subtract:
shader += "max(" + variable_name + "[0] - " + variable_name + "[1], 0.0)";
break;
case Operation::MultiplyThenAdd:
shader += "min(" + variable_name + "[0] * " + variable_name + "[1] + " + variable_name + "[2], 1.0)";
break;
case Operation::AddThenMultiply:
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], 1.0) * " + variable_name + "[2]";
break;
default:
shader += "0.0";
LOG_CRITICAL(Render_OpenGL, "Unknown color comb op %u", operation);
break;
}
}
void AppendAlphaCombiner(std::string& shader, Pica::Regs::TevStageConfig::Operation operation, const std::string& variable_name) {
using Operation = Pica::Regs::TevStageConfig::Operation;
switch (operation) {
case Operation::Replace:
shader += variable_name + "[0]";
break;
case Operation::Modulate:
shader += variable_name + "[0] * " + variable_name + "[1]";
break;
case Operation::Add:
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], 1.0)";
break;
case Operation::AddSigned:
shader += "clamp(" + variable_name + "[0] + " + variable_name + "[1] - 0.5, 0.0, 1.0)";
break;
case Operation::Lerp:
shader += variable_name + "[0] * " + variable_name + "[2] + " + variable_name + "[1] * (1.0 - " + variable_name + "[2])";
break;
case Operation::Subtract:
shader += "max(" + variable_name + "[0] - " + variable_name + "[1], 0.0)";
break;
case Operation::MultiplyThenAdd:
shader += "min(" + variable_name + "[0] * " + variable_name + "[1] + " + variable_name + "[2], 1.0)";
break;
case Operation::AddThenMultiply:
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], 1.0) * " + variable_name + "[2]";
break;
default:
shader += "0.0";
LOG_CRITICAL(Render_OpenGL, "Unknown alpha combiner op %u", operation);
break;
}
}
void AppendAlphaTestCondition(std::string& shader, Pica::Regs::CompareFunc func) {
using CompareFunc = Pica::Regs::CompareFunc;
switch (func) {
case CompareFunc::Never:
shader += "true";
break;
case CompareFunc::Always:
shader += "false";
break;
case CompareFunc::Equal:
shader += "g_last_tex_env_out.a != alphatest_ref";
break;
case CompareFunc::NotEqual:
shader += "g_last_tex_env_out.a == alphatest_ref";
break;
case CompareFunc::LessThan:
shader += "g_last_tex_env_out.a >= alphatest_ref";
break;
case CompareFunc::LessThanOrEqual:
shader += "g_last_tex_env_out.a > alphatest_ref";
break;
case CompareFunc::GreaterThan:
shader += "g_last_tex_env_out.a <= alphatest_ref";
break;
case CompareFunc::GreaterThanOrEqual:
shader += "g_last_tex_env_out.a < alphatest_ref";
break;
default:
shader += "false";
LOG_CRITICAL(Render_OpenGL, "Unknown alpha test condition %u", func);
break;
}
}
std::string GenerateFragmentShader(const ShaderCacheKey& config) {
std::string shader = R"(
#version 150 core
#define NUM_VTX_ATTR 7
#define NUM_TEV_STAGES 6
in vec4 o[NUM_VTX_ATTR];
out vec4 color;
uniform float alphatest_ref;
uniform vec4 const_color[NUM_TEV_STAGES];
uniform sampler2D tex[3];
uniform vec4 tev_combiner_buffer_color;
void main(void) {
vec4 g_combiner_buffer = tev_combiner_buffer_color;
vec4 g_last_tex_env_out = vec4(0.0, 0.0, 0.0, 0.0);
)";
// Do not do any sort of processing if it's obvious we're not going to pass the alpha test
if (config.alpha_test_func == Pica::Regs::CompareFunc::Never) {
shader += "discard;";
return shader;
}
auto& tev_stages = config.tev_stages;
for (unsigned tev_stage_index = 0; tev_stage_index < tev_stages.size(); ++tev_stage_index) {
auto& tev_stage = tev_stages[tev_stage_index];
if (!IsPassThroughTevStage(tev_stage)) {
std::string index_name = std::to_string(tev_stage_index);
shader += "vec3 color_results_" + index_name + "[3] = vec3[3](";
AppendColorModifier(shader, tev_stage.color_modifier1, tev_stage.color_source1, index_name);
shader += ", ";
AppendColorModifier(shader, tev_stage.color_modifier2, tev_stage.color_source2, index_name);
shader += ", ";
AppendColorModifier(shader, tev_stage.color_modifier3, tev_stage.color_source3, index_name);
shader += ");\n";
shader += "vec3 color_output_" + index_name + " = ";
AppendColorCombiner(shader, tev_stage.color_op, "color_results_" + index_name);
shader += ";\n";
shader += "float alpha_results_" + index_name + "[3] = float[3](";
AppendAlphaModifier(shader, tev_stage.alpha_modifier1, tev_stage.alpha_source1, index_name);
shader += ", ";
AppendAlphaModifier(shader, tev_stage.alpha_modifier2, tev_stage.alpha_source2, index_name);
shader += ", ";
AppendAlphaModifier(shader, tev_stage.alpha_modifier3, tev_stage.alpha_source3, index_name);
shader += ");\n";
shader += "float alpha_output_" + index_name + " = ";
AppendAlphaCombiner(shader, tev_stage.alpha_op, "alpha_results_" + index_name);
shader += ";\n";
shader += "g_last_tex_env_out = vec4(min(color_output_" + index_name + " * " + std::to_string(tev_stage.GetColorMultiplier()) + ".0, 1.0), min(alpha_output_" + index_name + " * " + std::to_string(tev_stage.GetAlphaMultiplier()) + ".0, 1.0));\n";
}
if (config.TevStageUpdatesCombinerBufferColor(tev_stage_index))
shader += "g_combiner_buffer.rgb = g_last_tex_env_out.rgb;\n";
if (config.TevStageUpdatesCombinerBufferAlpha(tev_stage_index))
shader += "g_combiner_buffer.a = g_last_tex_env_out.a;\n";
}
if (config.alpha_test_func != Pica::Regs::CompareFunc::Always) {
shader += "if (";
AppendAlphaTestCondition(shader, config.alpha_test_func);
shader += ") {\n discard;\n }\n";
}
shader += "color = g_last_tex_env_out;\n}";
return shader;
}
}

6
src/video_core/renderer_opengl/gl_shader_util.h
View File

@ -8,6 +8,12 @@
namespace ShaderUtil {
enum Attributes {
ATTRIBUTE_POSITION = 0,
ATTRIBUTE_COLOR = 1,
ATTRIBUTE_TEXCOORDS = 2,
};
GLuint LoadShaders(const char* vertex_file_path, const char* fragment_file_path);
}

8
src/video_core/renderer_opengl/gl_shaders.h
View File

@ -49,14 +49,16 @@ const char g_vertex_shader_hw[] = R"(
in vec4 vert_position;
in vec4 vert_color;
in vec2 vert_texcoords[3];
in vec2 vert_texcoords0;
in vec2 vert_texcoords1;
in vec2 vert_texcoords2;
out vec4 o[NUM_VTX_ATTR];
void main() {
o[2] = vert_color;
o[3] = vec4(vert_texcoords[0].xy, vert_texcoords[1].xy);
o[5] = vec4(0.0, 0.0, vert_texcoords[2].xy);
o[3] = vec4(vert_texcoords0.xy, vert_texcoords1.xy);
o[5] = vec4(0.0, 0.0, vert_texcoords2.xy);
gl_Position = vec4(vert_position.x, -vert_position.y, -vert_position.z, vert_position.w);
}

1
src/video_core/renderer_opengl/gl_state.h
View File

@ -65,6 +65,7 @@ public:
GLuint vertex_array; // GL_VERTEX_ARRAY_BINDING
GLuint vertex_buffer; // GL_ARRAY_BUFFER_BINDING
GLuint shader_program; // GL_CURRENT_PROGRAM
bool shader_dirty;
} draw;
OpenGLState();