mirror of
https://git.suyu.dev/suyu/suyu.git
synced 2024-11-25 22:57:22 +00:00
OpenGL: Move PicaShaderConfig to gl_shader_gen.h
Also move the implementation of CurrentConfig to the cpp file.
This commit is contained in:
Yuri Kunde Schlesner
parent
40e28f6217
commit
a6fd4533f6
4 changed files with 206 additions and 202 deletions
|
|
@ -1004,7 +1004,7 @@ void RasterizerOpenGL::SamplerInfo::SyncWithConfig(
|
||||||
}
|
}
|
||||||
|
|
||||||
void RasterizerOpenGL::SetShader() {
|
void RasterizerOpenGL::SetShader() {
|
||||||
PicaShaderConfig config = PicaShaderConfig::CurrentConfig();
|
GLShader::PicaShaderConfig config = GLShader::PicaShaderConfig::CurrentConfig();
|
||||||
std::unique_ptr<PicaShader> shader = std::make_unique<PicaShader>();
|
std::unique_ptr<PicaShader> shader = std::make_unique<PicaShader>();
|
||||||
|
|
||||||
// Find (or generate) the GLSL shader for the current TEV state
|
// Find (or generate) the GLSL shader for the current TEV state
|
||||||
|
|
|
||||||
|
|
@ -25,210 +25,13 @@
|
||||||
#include "video_core/regs_texturing.h"
|
#include "video_core/regs_texturing.h"
|
||||||
#include "video_core/renderer_opengl/gl_rasterizer_cache.h"
|
#include "video_core/renderer_opengl/gl_rasterizer_cache.h"
|
||||||
#include "video_core/renderer_opengl/gl_resource_manager.h"
|
#include "video_core/renderer_opengl/gl_resource_manager.h"
|
||||||
|
#include "video_core/renderer_opengl/gl_shader_gen.h"
|
||||||
#include "video_core/renderer_opengl/gl_state.h"
|
#include "video_core/renderer_opengl/gl_state.h"
|
||||||
#include "video_core/renderer_opengl/pica_to_gl.h"
|
#include "video_core/renderer_opengl/pica_to_gl.h"
|
||||||
#include "video_core/shader/shader.h"
|
#include "video_core/shader/shader.h"
|
||||||
|
|
||||||
struct ScreenInfo;
|
struct ScreenInfo;
|
||||||
|
|
||||||
/**
|
|
||||||
* This struct contains all state used to generate the GLSL shader program that emulates the current
|
|
||||||
* Pica register configuration. This struct is used as a cache key for generated GLSL shader
|
|
||||||
* programs. The functions in gl_shader_gen.cpp should retrieve state from this struct only, not by
|
|
||||||
* directly accessing Pica registers. This should reduce the risk of bugs in shader generation where
|
|
||||||
* Pica state is not being captured in the shader cache key, thereby resulting in (what should be)
|
|
||||||
* two separate shaders sharing the same key.
|
|
||||||
*
|
|
||||||
* We use a union because "implicitly-defined copy/move constructor for a union X copies the object
|
|
||||||
* representation of X." and "implicitly-defined copy assignment operator for a union X copies the
|
|
||||||
* object representation (3.9) of X." = Bytewise copy instead of memberwise copy. This is important
|
|
||||||
* because the padding bytes are included in the hash and comparison between objects.
|
|
||||||
*/
|
|
||||||
union PicaShaderConfig {
|
|
||||||
|
|
||||||
/// Construct a PicaShaderConfig with the current Pica register configuration.
|
|
||||||
static PicaShaderConfig CurrentConfig() {
|
|
||||||
PicaShaderConfig res;
|
|
||||||
|
|
||||||
auto& state = res.state;
|
|
||||||
std::memset(&state, 0, sizeof(PicaShaderConfig::State));
|
|
||||||
|
|
||||||
const auto& regs = Pica::g_state.regs;
|
|
||||||
|
|
||||||
state.scissor_test_mode = regs.rasterizer.scissor_test.mode;
|
|
||||||
|
|
||||||
state.depthmap_enable = regs.rasterizer.depthmap_enable;
|
|
||||||
|
|
||||||
state.alpha_test_func = regs.framebuffer.output_merger.alpha_test.enable
|
|
||||||
? regs.framebuffer.output_merger.alpha_test.func.Value()
|
|
||||||
: Pica::FramebufferRegs::CompareFunc::Always;
|
|
||||||
|
|
||||||
state.texture0_type = regs.texturing.texture0.type;
|
|
||||||
|
|
||||||
// Copy relevant tev stages fields.
|
|
||||||
// We don't sync const_color here because of the high variance, it is a
|
|
||||||
// shader uniform instead.
|
|
||||||
const auto& tev_stages = regs.texturing.GetTevStages();
|
|
||||||
DEBUG_ASSERT(state.tev_stages.size() == tev_stages.size());
|
|
||||||
for (size_t i = 0; i < tev_stages.size(); i++) {
|
|
||||||
const auto& tev_stage = tev_stages[i];
|
|
||||||
state.tev_stages[i].sources_raw = tev_stage.sources_raw;
|
|
||||||
state.tev_stages[i].modifiers_raw = tev_stage.modifiers_raw;
|
|
||||||
state.tev_stages[i].ops_raw = tev_stage.ops_raw;
|
|
||||||
state.tev_stages[i].scales_raw = tev_stage.scales_raw;
|
|
||||||
}
|
|
||||||
|
|
||||||
state.fog_mode = regs.texturing.fog_mode;
|
|
||||||
state.fog_flip = regs.texturing.fog_flip != 0;
|
|
||||||
|
|
||||||
state.combiner_buffer_input =
|
|
||||||
regs.texturing.tev_combiner_buffer_input.update_mask_rgb.Value() |
|
|
||||||
regs.texturing.tev_combiner_buffer_input.update_mask_a.Value() << 4;
|
|
||||||
|
|
||||||
// Fragment lighting
|
|
||||||
|
|
||||||
state.lighting.enable = !regs.lighting.disable;
|
|
||||||
state.lighting.src_num = regs.lighting.max_light_index + 1;
|
|
||||||
|
|
||||||
for (unsigned light_index = 0; light_index < state.lighting.src_num; ++light_index) {
|
|
||||||
unsigned num = regs.lighting.light_enable.GetNum(light_index);
|
|
||||||
const auto& light = regs.lighting.light[num];
|
|
||||||
state.lighting.light[light_index].num = num;
|
|
||||||
state.lighting.light[light_index].directional = light.config.directional != 0;
|
|
||||||
state.lighting.light[light_index].two_sided_diffuse =
|
|
||||||
light.config.two_sided_diffuse != 0;
|
|
||||||
state.lighting.light[light_index].dist_atten_enable =
|
|
||||||
!regs.lighting.IsDistAttenDisabled(num);
|
|
||||||
}
|
|
||||||
|
|
||||||
state.lighting.lut_d0.enable = regs.lighting.config1.disable_lut_d0 == 0;
|
|
||||||
state.lighting.lut_d0.abs_input = regs.lighting.abs_lut_input.disable_d0 == 0;
|
|
||||||
state.lighting.lut_d0.type = regs.lighting.lut_input.d0.Value();
|
|
||||||
state.lighting.lut_d0.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.d0);
|
|
||||||
|
|
||||||
state.lighting.lut_d1.enable = regs.lighting.config1.disable_lut_d1 == 0;
|
|
||||||
state.lighting.lut_d1.abs_input = regs.lighting.abs_lut_input.disable_d1 == 0;
|
|
||||||
state.lighting.lut_d1.type = regs.lighting.lut_input.d1.Value();
|
|
||||||
state.lighting.lut_d1.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.d1);
|
|
||||||
|
|
||||||
state.lighting.lut_fr.enable = regs.lighting.config1.disable_lut_fr == 0;
|
|
||||||
state.lighting.lut_fr.abs_input = regs.lighting.abs_lut_input.disable_fr == 0;
|
|
||||||
state.lighting.lut_fr.type = regs.lighting.lut_input.fr.Value();
|
|
||||||
state.lighting.lut_fr.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.fr);
|
|
||||||
|
|
||||||
state.lighting.lut_rr.enable = regs.lighting.config1.disable_lut_rr == 0;
|
|
||||||
state.lighting.lut_rr.abs_input = regs.lighting.abs_lut_input.disable_rr == 0;
|
|
||||||
state.lighting.lut_rr.type = regs.lighting.lut_input.rr.Value();
|
|
||||||
state.lighting.lut_rr.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.rr);
|
|
||||||
|
|
||||||
state.lighting.lut_rg.enable = regs.lighting.config1.disable_lut_rg == 0;
|
|
||||||
state.lighting.lut_rg.abs_input = regs.lighting.abs_lut_input.disable_rg == 0;
|
|
||||||
state.lighting.lut_rg.type = regs.lighting.lut_input.rg.Value();
|
|
||||||
state.lighting.lut_rg.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.rg);
|
|
||||||
|
|
||||||
state.lighting.lut_rb.enable = regs.lighting.config1.disable_lut_rb == 0;
|
|
||||||
state.lighting.lut_rb.abs_input = regs.lighting.abs_lut_input.disable_rb == 0;
|
|
||||||
state.lighting.lut_rb.type = regs.lighting.lut_input.rb.Value();
|
|
||||||
state.lighting.lut_rb.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.rb);
|
|
||||||
|
|
||||||
state.lighting.config = regs.lighting.config0.config;
|
|
||||||
state.lighting.fresnel_selector = regs.lighting.config0.fresnel_selector;
|
|
||||||
state.lighting.bump_mode = regs.lighting.config0.bump_mode;
|
|
||||||
state.lighting.bump_selector = regs.lighting.config0.bump_selector;
|
|
||||||
state.lighting.bump_renorm = regs.lighting.config0.disable_bump_renorm == 0;
|
|
||||||
state.lighting.clamp_highlights = regs.lighting.config0.clamp_highlights != 0;
|
|
||||||
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool TevStageUpdatesCombinerBufferColor(unsigned stage_index) const {
|
|
||||||
return (stage_index < 4) && (state.combiner_buffer_input & (1 << stage_index));
|
|
||||||
}
|
|
||||||
|
|
||||||
bool TevStageUpdatesCombinerBufferAlpha(unsigned stage_index) const {
|
|
||||||
return (stage_index < 4) && ((state.combiner_buffer_input >> 4) & (1 << stage_index));
|
|
||||||
}
|
|
||||||
|
|
||||||
bool operator==(const PicaShaderConfig& o) const {
|
|
||||||
return std::memcmp(&state, &o.state, sizeof(PicaShaderConfig::State)) == 0;
|
|
||||||
};
|
|
||||||
|
|
||||||
// NOTE: MSVC15 (Update 2) doesn't think `delete`'d constructors and operators are TC.
|
|
||||||
// This makes BitField not TC when used in a union or struct so we have to resort
|
|
||||||
// to this ugly hack.
|
|
||||||
// Once that bug is fixed we can use Pica::Regs::TevStageConfig here.
|
|
||||||
// Doesn't include const_color because we don't sync it, see comment in CurrentConfig()
|
|
||||||
struct TevStageConfigRaw {
|
|
||||||
u32 sources_raw;
|
|
||||||
u32 modifiers_raw;
|
|
||||||
u32 ops_raw;
|
|
||||||
u32 scales_raw;
|
|
||||||
explicit operator Pica::TexturingRegs::TevStageConfig() const noexcept {
|
|
||||||
Pica::TexturingRegs::TevStageConfig stage;
|
|
||||||
stage.sources_raw = sources_raw;
|
|
||||||
stage.modifiers_raw = modifiers_raw;
|
|
||||||
stage.ops_raw = ops_raw;
|
|
||||||
stage.const_color = 0;
|
|
||||||
stage.scales_raw = scales_raw;
|
|
||||||
return stage;
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
struct State {
|
|
||||||
Pica::FramebufferRegs::CompareFunc alpha_test_func;
|
|
||||||
Pica::RasterizerRegs::ScissorMode scissor_test_mode;
|
|
||||||
Pica::TexturingRegs::TextureConfig::TextureType texture0_type;
|
|
||||||
std::array<TevStageConfigRaw, 6> tev_stages;
|
|
||||||
u8 combiner_buffer_input;
|
|
||||||
|
|
||||||
Pica::RasterizerRegs::DepthBuffering depthmap_enable;
|
|
||||||
Pica::TexturingRegs::FogMode fog_mode;
|
|
||||||
bool fog_flip;
|
|
||||||
|
|
||||||
struct {
|
|
||||||
struct {
|
|
||||||
unsigned num;
|
|
||||||
bool directional;
|
|
||||||
bool two_sided_diffuse;
|
|
||||||
bool dist_atten_enable;
|
|
||||||
} light[8];
|
|
||||||
|
|
||||||
bool enable;
|
|
||||||
unsigned src_num;
|
|
||||||
Pica::LightingRegs::LightingBumpMode bump_mode;
|
|
||||||
unsigned bump_selector;
|
|
||||||
bool bump_renorm;
|
|
||||||
bool clamp_highlights;
|
|
||||||
|
|
||||||
Pica::LightingRegs::LightingConfig config;
|
|
||||||
Pica::LightingRegs::LightingFresnelSelector fresnel_selector;
|
|
||||||
|
|
||||||
struct {
|
|
||||||
bool enable;
|
|
||||||
bool abs_input;
|
|
||||||
Pica::LightingRegs::LightingLutInput type;
|
|
||||||
float scale;
|
|
||||||
} lut_d0, lut_d1, lut_fr, lut_rr, lut_rg, lut_rb;
|
|
||||||
} lighting;
|
|
||||||
|
|
||||||
} state;
|
|
||||||
};
|
|
||||||
#if (__GNUC__ >= 5) || defined(__clang__) || defined(_MSC_VER)
|
|
||||||
static_assert(std::is_trivially_copyable<PicaShaderConfig::State>::value,
|
|
||||||
"PicaShaderConfig::State must be trivially copyable");
|
|
||||||
#endif
|
|
||||||
|
|
||||||
namespace std {
|
|
||||||
|
|
||||||
template <>
|
|
||||||
struct hash<PicaShaderConfig> {
|
|
||||||
size_t operator()(const PicaShaderConfig& k) const {
|
|
||||||
return Common::ComputeHash64(&k.state, sizeof(PicaShaderConfig::State));
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
} // namespace std
|
|
||||||
|
|
||||||
class RasterizerOpenGL : public VideoCore::RasterizerInterface {
|
class RasterizerOpenGL : public VideoCore::RasterizerInterface {
|
||||||
public:
|
public:
|
||||||
RasterizerOpenGL();
|
RasterizerOpenGL();
|
||||||
|
|
@ -437,7 +240,7 @@ private:
|
||||||
|
|
||||||
std::vector<HardwareVertex> vertex_batch;
|
std::vector<HardwareVertex> vertex_batch;
|
||||||
|
|
||||||
std::unordered_map<PicaShaderConfig, std::unique_ptr<PicaShader>> shader_cache;
|
std::unordered_map<GLShader::PicaShaderConfig, std::unique_ptr<PicaShader>> shader_cache;
|
||||||
const PicaShader* current_shader = nullptr;
|
const PicaShader* current_shader = nullptr;
|
||||||
bool shader_dirty;
|
bool shader_dirty;
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -4,6 +4,7 @@
|
||||||
|
|
||||||
#include <array>
|
#include <array>
|
||||||
#include <cstddef>
|
#include <cstddef>
|
||||||
|
#include <cstring>
|
||||||
#include "common/assert.h"
|
#include "common/assert.h"
|
||||||
#include "common/bit_field.h"
|
#include "common/bit_field.h"
|
||||||
#include "common/logging/log.h"
|
#include "common/logging/log.h"
|
||||||
|
|
@ -23,6 +24,99 @@ using TevStageConfig = TexturingRegs::TevStageConfig;
|
||||||
|
|
||||||
namespace GLShader {
|
namespace GLShader {
|
||||||
|
|
||||||
|
PicaShaderConfig PicaShaderConfig::CurrentConfig() {
|
||||||
|
PicaShaderConfig res;
|
||||||
|
|
||||||
|
auto& state = res.state;
|
||||||
|
std::memset(&state, 0, sizeof(PicaShaderConfig::State));
|
||||||
|
|
||||||
|
const auto& regs = Pica::g_state.regs;
|
||||||
|
|
||||||
|
state.scissor_test_mode = regs.rasterizer.scissor_test.mode;
|
||||||
|
|
||||||
|
state.depthmap_enable = regs.rasterizer.depthmap_enable;
|
||||||
|
|
||||||
|
state.alpha_test_func = regs.framebuffer.output_merger.alpha_test.enable
|
||||||
|
? regs.framebuffer.output_merger.alpha_test.func.Value()
|
||||||
|
: Pica::FramebufferRegs::CompareFunc::Always;
|
||||||
|
|
||||||
|
state.texture0_type = regs.texturing.texture0.type;
|
||||||
|
|
||||||
|
// Copy relevant tev stages fields.
|
||||||
|
// We don't sync const_color here because of the high variance, it is a
|
||||||
|
// shader uniform instead.
|
||||||
|
const auto& tev_stages = regs.texturing.GetTevStages();
|
||||||
|
DEBUG_ASSERT(state.tev_stages.size() == tev_stages.size());
|
||||||
|
for (size_t i = 0; i < tev_stages.size(); i++) {
|
||||||
|
const auto& tev_stage = tev_stages[i];
|
||||||
|
state.tev_stages[i].sources_raw = tev_stage.sources_raw;
|
||||||
|
state.tev_stages[i].modifiers_raw = tev_stage.modifiers_raw;
|
||||||
|
state.tev_stages[i].ops_raw = tev_stage.ops_raw;
|
||||||
|
state.tev_stages[i].scales_raw = tev_stage.scales_raw;
|
||||||
|
}
|
||||||
|
|
||||||
|
state.fog_mode = regs.texturing.fog_mode;
|
||||||
|
state.fog_flip = regs.texturing.fog_flip != 0;
|
||||||
|
|
||||||
|
state.combiner_buffer_input = regs.texturing.tev_combiner_buffer_input.update_mask_rgb.Value() |
|
||||||
|
regs.texturing.tev_combiner_buffer_input.update_mask_a.Value()
|
||||||
|
<< 4;
|
||||||
|
|
||||||
|
// Fragment lighting
|
||||||
|
|
||||||
|
state.lighting.enable = !regs.lighting.disable;
|
||||||
|
state.lighting.src_num = regs.lighting.max_light_index + 1;
|
||||||
|
|
||||||
|
for (unsigned light_index = 0; light_index < state.lighting.src_num; ++light_index) {
|
||||||
|
unsigned num = regs.lighting.light_enable.GetNum(light_index);
|
||||||
|
const auto& light = regs.lighting.light[num];
|
||||||
|
state.lighting.light[light_index].num = num;
|
||||||
|
state.lighting.light[light_index].directional = light.config.directional != 0;
|
||||||
|
state.lighting.light[light_index].two_sided_diffuse = light.config.two_sided_diffuse != 0;
|
||||||
|
state.lighting.light[light_index].dist_atten_enable =
|
||||||
|
!regs.lighting.IsDistAttenDisabled(num);
|
||||||
|
}
|
||||||
|
|
||||||
|
state.lighting.lut_d0.enable = regs.lighting.config1.disable_lut_d0 == 0;
|
||||||
|
state.lighting.lut_d0.abs_input = regs.lighting.abs_lut_input.disable_d0 == 0;
|
||||||
|
state.lighting.lut_d0.type = regs.lighting.lut_input.d0.Value();
|
||||||
|
state.lighting.lut_d0.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.d0);
|
||||||
|
|
||||||
|
state.lighting.lut_d1.enable = regs.lighting.config1.disable_lut_d1 == 0;
|
||||||
|
state.lighting.lut_d1.abs_input = regs.lighting.abs_lut_input.disable_d1 == 0;
|
||||||
|
state.lighting.lut_d1.type = regs.lighting.lut_input.d1.Value();
|
||||||
|
state.lighting.lut_d1.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.d1);
|
||||||
|
|
||||||
|
state.lighting.lut_fr.enable = regs.lighting.config1.disable_lut_fr == 0;
|
||||||
|
state.lighting.lut_fr.abs_input = regs.lighting.abs_lut_input.disable_fr == 0;
|
||||||
|
state.lighting.lut_fr.type = regs.lighting.lut_input.fr.Value();
|
||||||
|
state.lighting.lut_fr.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.fr);
|
||||||
|
|
||||||
|
state.lighting.lut_rr.enable = regs.lighting.config1.disable_lut_rr == 0;
|
||||||
|
state.lighting.lut_rr.abs_input = regs.lighting.abs_lut_input.disable_rr == 0;
|
||||||
|
state.lighting.lut_rr.type = regs.lighting.lut_input.rr.Value();
|
||||||
|
state.lighting.lut_rr.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.rr);
|
||||||
|
|
||||||
|
state.lighting.lut_rg.enable = regs.lighting.config1.disable_lut_rg == 0;
|
||||||
|
state.lighting.lut_rg.abs_input = regs.lighting.abs_lut_input.disable_rg == 0;
|
||||||
|
state.lighting.lut_rg.type = regs.lighting.lut_input.rg.Value();
|
||||||
|
state.lighting.lut_rg.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.rg);
|
||||||
|
|
||||||
|
state.lighting.lut_rb.enable = regs.lighting.config1.disable_lut_rb == 0;
|
||||||
|
state.lighting.lut_rb.abs_input = regs.lighting.abs_lut_input.disable_rb == 0;
|
||||||
|
state.lighting.lut_rb.type = regs.lighting.lut_input.rb.Value();
|
||||||
|
state.lighting.lut_rb.scale = regs.lighting.lut_scale.GetScale(regs.lighting.lut_scale.rb);
|
||||||
|
|
||||||
|
state.lighting.config = regs.lighting.config0.config;
|
||||||
|
state.lighting.fresnel_selector = regs.lighting.config0.fresnel_selector;
|
||||||
|
state.lighting.bump_mode = regs.lighting.config0.bump_mode;
|
||||||
|
state.lighting.bump_selector = regs.lighting.config0.bump_selector;
|
||||||
|
state.lighting.bump_renorm = regs.lighting.config0.disable_bump_renorm == 0;
|
||||||
|
state.lighting.clamp_highlights = regs.lighting.config0.clamp_highlights != 0;
|
||||||
|
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
||||||
/// Detects if a TEV stage is configured to be skipped (to avoid generating unnecessary code)
|
/// Detects if a TEV stage is configured to be skipped (to avoid generating unnecessary code)
|
||||||
static bool IsPassThroughTevStage(const TevStageConfig& stage) {
|
static bool IsPassThroughTevStage(const TevStageConfig& stage) {
|
||||||
return (stage.color_op == TevStageConfig::Operation::Replace &&
|
return (stage.color_op == TevStageConfig::Operation::Replace &&
|
||||||
|
|
|
||||||
|
|
@ -4,9 +4,12 @@
|
||||||
|
|
||||||
#pragma once
|
#pragma once
|
||||||
|
|
||||||
|
#include <array>
|
||||||
|
#include <cstring>
|
||||||
|
#include <functional>
|
||||||
#include <string>
|
#include <string>
|
||||||
|
#include <type_traits>
|
||||||
union PicaShaderConfig;
|
#include "video_core/regs.h"
|
||||||
|
|
||||||
namespace GLShader {
|
namespace GLShader {
|
||||||
|
|
||||||
|
|
@ -21,6 +24,101 @@ enum Attributes {
|
||||||
ATTRIBUTE_VIEW,
|
ATTRIBUTE_VIEW,
|
||||||
};
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* This struct contains all state used to generate the GLSL shader program that emulates the current
|
||||||
|
* Pica register configuration. This struct is used as a cache key for generated GLSL shader
|
||||||
|
* programs. The functions in gl_shader_gen.cpp should retrieve state from this struct only, not by
|
||||||
|
* directly accessing Pica registers. This should reduce the risk of bugs in shader generation where
|
||||||
|
* Pica state is not being captured in the shader cache key, thereby resulting in (what should be)
|
||||||
|
* two separate shaders sharing the same key.
|
||||||
|
*
|
||||||
|
* We use a union because "implicitly-defined copy/move constructor for a union X copies the object
|
||||||
|
* representation of X." and "implicitly-defined copy assignment operator for a union X copies the
|
||||||
|
* object representation (3.9) of X." = Bytewise copy instead of memberwise copy. This is important
|
||||||
|
* because the padding bytes are included in the hash and comparison between objects.
|
||||||
|
*/
|
||||||
|
union PicaShaderConfig {
|
||||||
|
|
||||||
|
/// Construct a PicaShaderConfig with the current Pica register configuration.
|
||||||
|
static PicaShaderConfig CurrentConfig();
|
||||||
|
|
||||||
|
bool TevStageUpdatesCombinerBufferColor(unsigned stage_index) const {
|
||||||
|
return (stage_index < 4) && (state.combiner_buffer_input & (1 << stage_index));
|
||||||
|
}
|
||||||
|
|
||||||
|
bool TevStageUpdatesCombinerBufferAlpha(unsigned stage_index) const {
|
||||||
|
return (stage_index < 4) && ((state.combiner_buffer_input >> 4) & (1 << stage_index));
|
||||||
|
}
|
||||||
|
|
||||||
|
bool operator==(const PicaShaderConfig& o) const {
|
||||||
|
return std::memcmp(&state, &o.state, sizeof(PicaShaderConfig::State)) == 0;
|
||||||
|
};
|
||||||
|
|
||||||
|
// NOTE: MSVC15 (Update 2) doesn't think `delete`'d constructors and operators are TC.
|
||||||
|
// This makes BitField not TC when used in a union or struct so we have to resort
|
||||||
|
// to this ugly hack.
|
||||||
|
// Once that bug is fixed we can use Pica::Regs::TevStageConfig here.
|
||||||
|
// Doesn't include const_color because we don't sync it, see comment in CurrentConfig()
|
||||||
|
struct TevStageConfigRaw {
|
||||||
|
u32 sources_raw;
|
||||||
|
u32 modifiers_raw;
|
||||||
|
u32 ops_raw;
|
||||||
|
u32 scales_raw;
|
||||||
|
explicit operator Pica::TexturingRegs::TevStageConfig() const noexcept {
|
||||||
|
Pica::TexturingRegs::TevStageConfig stage;
|
||||||
|
stage.sources_raw = sources_raw;
|
||||||
|
stage.modifiers_raw = modifiers_raw;
|
||||||
|
stage.ops_raw = ops_raw;
|
||||||
|
stage.const_color = 0;
|
||||||
|
stage.scales_raw = scales_raw;
|
||||||
|
return stage;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
struct State {
|
||||||
|
Pica::FramebufferRegs::CompareFunc alpha_test_func;
|
||||||
|
Pica::RasterizerRegs::ScissorMode scissor_test_mode;
|
||||||
|
Pica::TexturingRegs::TextureConfig::TextureType texture0_type;
|
||||||
|
std::array<TevStageConfigRaw, 6> tev_stages;
|
||||||
|
u8 combiner_buffer_input;
|
||||||
|
|
||||||
|
Pica::RasterizerRegs::DepthBuffering depthmap_enable;
|
||||||
|
Pica::TexturingRegs::FogMode fog_mode;
|
||||||
|
bool fog_flip;
|
||||||
|
|
||||||
|
struct {
|
||||||
|
struct {
|
||||||
|
unsigned num;
|
||||||
|
bool directional;
|
||||||
|
bool two_sided_diffuse;
|
||||||
|
bool dist_atten_enable;
|
||||||
|
} light[8];
|
||||||
|
|
||||||
|
bool enable;
|
||||||
|
unsigned src_num;
|
||||||
|
Pica::LightingRegs::LightingBumpMode bump_mode;
|
||||||
|
unsigned bump_selector;
|
||||||
|
bool bump_renorm;
|
||||||
|
bool clamp_highlights;
|
||||||
|
|
||||||
|
Pica::LightingRegs::LightingConfig config;
|
||||||
|
Pica::LightingRegs::LightingFresnelSelector fresnel_selector;
|
||||||
|
|
||||||
|
struct {
|
||||||
|
bool enable;
|
||||||
|
bool abs_input;
|
||||||
|
Pica::LightingRegs::LightingLutInput type;
|
||||||
|
float scale;
|
||||||
|
} lut_d0, lut_d1, lut_fr, lut_rr, lut_rg, lut_rb;
|
||||||
|
} lighting;
|
||||||
|
|
||||||
|
} state;
|
||||||
|
};
|
||||||
|
#if (__GNUC__ >= 5) || defined(__clang__) || defined(_MSC_VER)
|
||||||
|
static_assert(std::is_trivially_copyable<PicaShaderConfig::State>::value,
|
||||||
|
"PicaShaderConfig::State must be trivially copyable");
|
||||||
|
#endif
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Generates the GLSL vertex shader program source code for the current Pica state
|
* Generates the GLSL vertex shader program source code for the current Pica state
|
||||||
* @returns String of the shader source code
|
* @returns String of the shader source code
|
||||||
|
|
@ -36,3 +134,12 @@ std::string GenerateVertexShader();
|
||||||
std::string GenerateFragmentShader(const PicaShaderConfig& config);
|
std::string GenerateFragmentShader(const PicaShaderConfig& config);
|
||||||
|
|
||||||
} // namespace GLShader
|
} // namespace GLShader
|
||||||
|
|
||||||
|
namespace std {
|
||||||
|
template <>
|
||||||
|
struct hash<GLShader::PicaShaderConfig> {
|
||||||
|
size_t operator()(const GLShader::PicaShaderConfig& k) const {
|
||||||
|
return Common::ComputeHash64(&k.state, sizeof(GLShader::PicaShaderConfig::State));
|
||||||
|
}
|
||||||
|
};
|
||||||
|
} // namespace std
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue