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VideoCore: Split lighting regs from Regs struct

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This commit is contained in:
Yuri Kunde Schlesner 2017-01-28 12:13:21 -08:00
parent 23713d5dee
commit f443c7e5b0
6 changed files with 341 additions and 312 deletions
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8
src/video_core/renderer_opengl/gl_rasterizer.h
View file

@ -192,18 +192,18 @@ union PicaShaderConfig {
bool enable;
unsigned src_num;
Pica::Regs::LightingBumpMode bump_mode;
Pica::LightingRegs::LightingBumpMode bump_mode;
unsigned bump_selector;
bool bump_renorm;
bool clamp_highlights;
Pica::Regs::LightingConfig config;
Pica::Regs::LightingFresnelSelector fresnel_selector;
Pica::LightingRegs::LightingConfig config;
Pica::LightingRegs::LightingFresnelSelector fresnel_selector;
struct {
bool enable;
bool abs_input;
Pica::Regs::LightingLutInput type;
Pica::LightingRegs::LightingLutInput type;
float scale;
} lut_d0, lut_d1, lut_fr, lut_rr, lut_rg, lut_rb;
} lighting;

72
src/video_core/renderer_opengl/gl_shader_gen.cpp
View file

@ -14,6 +14,7 @@
using Pica::Regs;
using Pica::RasterizerRegs;
using Pica::LightingRegs;
using TevStageConfig = Pica::TexturingRegs::TevStageConfig;
namespace GLShader {
@ -365,7 +366,7 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
"vec3 refl_value = vec3(0.0);\n";
// Compute fragment normals
if (lighting.bump_mode == Pica::Regs::LightingBumpMode::NormalMap) {
if (lighting.bump_mode == LightingRegs::LightingBumpMode::NormalMap) {
// Bump mapping is enabled using a normal map, read perturbation vector from the selected
// texture
std::string bump_selector = std::to_string(lighting.bump_selector);
@ -379,7 +380,7 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
"(1.0 - (surface_normal.x*surface_normal.x + surface_normal.y*surface_normal.y))";
out += "surface_normal.z = sqrt(max(" + val + ", 0.0));\n";
}
} else if (lighting.bump_mode == Pica::Regs::LightingBumpMode::TangentMap) {
} else if (lighting.bump_mode == LightingRegs::LightingBumpMode::TangentMap) {
// Bump mapping is enabled using a tangent map
LOG_CRITICAL(HW_GPU, "unimplemented bump mapping mode (tangent mapping)");
UNIMPLEMENTED();
@ -393,23 +394,24 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
out += "vec3 normal = normalize(quaternion_rotate(normquat, surface_normal));\n";
// Gets the index into the specified lookup table for specular lighting
auto GetLutIndex = [&lighting](unsigned light_num, Regs::LightingLutInput input, bool abs) {
auto GetLutIndex = [&lighting](unsigned light_num, LightingRegs::LightingLutInput input,
bool abs) {
const std::string half_angle = "normalize(normalize(view) + light_vector)";
std::string index;
switch (input) {
case Regs::LightingLutInput::NH:
case LightingRegs::LightingLutInput::NH:
index = "dot(normal, " + half_angle + ")";
break;
case Regs::LightingLutInput::VH:
case LightingRegs::LightingLutInput::VH:
index = std::string("dot(normalize(view), " + half_angle + ")");
break;
case Regs::LightingLutInput::NV:
case LightingRegs::LightingLutInput::NV:
index = std::string("dot(normal, normalize(view))");
break;
case Regs::LightingLutInput::LN:
case LightingRegs::LightingLutInput::LN:
index = std::string("dot(light_vector, normal)");
break;
@ -433,7 +435,7 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
};
// Gets the lighting lookup table value given the specified sampler and index
auto GetLutValue = [](Regs::LightingSampler sampler, std::string lut_index) {
auto GetLutValue = [](LightingRegs::LightingSampler sampler, std::string lut_index) {
return std::string("texture(lut[" + std::to_string((unsigned)sampler / 4) + "], " +
lut_index + ")[" + std::to_string((unsigned)sampler & 3) + "]");
};
@ -462,8 +464,8 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
light_src + ".position) + " + light_src + ".dist_atten_bias)";
index = "(OFFSET_256 + SCALE_256 * clamp(" + index + ", 0.0, 1.0))";
const unsigned lut_num =
((unsigned)Regs::LightingSampler::DistanceAttenuation + light_config.num);
dist_atten = GetLutValue((Regs::LightingSampler)lut_num, index);
((unsigned)LightingRegs::LightingSampler::DistanceAttenuation + light_config.num);
dist_atten = GetLutValue((LightingRegs::LightingSampler)lut_num, index);
}
// If enabled, clamp specular component if lighting result is negative
@ -473,24 +475,24 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
// Specular 0 component
std::string d0_lut_value = "1.0";
if (lighting.lut_d0.enable &&
Pica::Regs::IsLightingSamplerSupported(lighting.config,
Pica::Regs::LightingSampler::Distribution0)) {
LightingRegs::IsLightingSamplerSupported(
lighting.config, LightingRegs::LightingSampler::Distribution0)) {
// Lookup specular "distribution 0" LUT value
std::string index =
GetLutIndex(light_config.num, lighting.lut_d0.type, lighting.lut_d0.abs_input);
d0_lut_value = "(" + std::to_string(lighting.lut_d0.scale) + " * " +
GetLutValue(Regs::LightingSampler::Distribution0, index) + ")";
GetLutValue(LightingRegs::LightingSampler::Distribution0, index) + ")";
}
std::string specular_0 = "(" + d0_lut_value + " * " + light_src + ".specular_0)";
// If enabled, lookup ReflectRed value, otherwise, 1.0 is used
if (lighting.lut_rr.enable &&
Pica::Regs::IsLightingSamplerSupported(lighting.config,
Pica::Regs::LightingSampler::ReflectRed)) {
LightingRegs::IsLightingSamplerSupported(lighting.config,
LightingRegs::LightingSampler::ReflectRed)) {
std::string index =
GetLutIndex(light_config.num, lighting.lut_rr.type, lighting.lut_rr.abs_input);
std::string value = "(" + std::to_string(lighting.lut_rr.scale) + " * " +
GetLutValue(Regs::LightingSampler::ReflectRed, index) + ")";
GetLutValue(LightingRegs::LightingSampler::ReflectRed, index) + ")";
out += "refl_value.r = " + value + ";\n";
} else {
out += "refl_value.r = 1.0;\n";
@ -498,12 +500,13 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
// If enabled, lookup ReflectGreen value, otherwise, ReflectRed value is used
if (lighting.lut_rg.enable &&
Pica::Regs::IsLightingSamplerSupported(lighting.config,
Pica::Regs::LightingSampler::ReflectGreen)) {
LightingRegs::IsLightingSamplerSupported(lighting.config,
LightingRegs::LightingSampler::ReflectGreen)) {
std::string index =
GetLutIndex(light_config.num, lighting.lut_rg.type, lighting.lut_rg.abs_input);
std::string value = "(" + std::to_string(lighting.lut_rg.scale) + " * " +
GetLutValue(Regs::LightingSampler::ReflectGreen, index) + ")";
GetLutValue(LightingRegs::LightingSampler::ReflectGreen, index) +
")";
out += "refl_value.g = " + value + ";\n";
} else {
out += "refl_value.g = refl_value.r;\n";
@ -511,12 +514,13 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
// If enabled, lookup ReflectBlue value, otherwise, ReflectRed value is used
if (lighting.lut_rb.enable &&
Pica::Regs::IsLightingSamplerSupported(lighting.config,
Pica::Regs::LightingSampler::ReflectBlue)) {
LightingRegs::IsLightingSamplerSupported(lighting.config,
LightingRegs::LightingSampler::ReflectBlue)) {
std::string index =
GetLutIndex(light_config.num, lighting.lut_rb.type, lighting.lut_rb.abs_input);
std::string value = "(" + std::to_string(lighting.lut_rb.scale) + " * " +
GetLutValue(Regs::LightingSampler::ReflectBlue, index) + ")";
GetLutValue(LightingRegs::LightingSampler::ReflectBlue, index) +
")";
out += "refl_value.b = " + value + ";\n";
} else {
out += "refl_value.b = refl_value.r;\n";
@ -525,35 +529,39 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
// Specular 1 component
std::string d1_lut_value = "1.0";
if (lighting.lut_d1.enable &&
Pica::Regs::IsLightingSamplerSupported(lighting.config,
Pica::Regs::LightingSampler::Distribution1)) {
LightingRegs::IsLightingSamplerSupported(
lighting.config, LightingRegs::LightingSampler::Distribution1)) {
// Lookup specular "distribution 1" LUT value
std::string index =
GetLutIndex(light_config.num, lighting.lut_d1.type, lighting.lut_d1.abs_input);
d1_lut_value = "(" + std::to_string(lighting.lut_d1.scale) + " * " +
GetLutValue(Regs::LightingSampler::Distribution1, index) + ")";
GetLutValue(LightingRegs::LightingSampler::Distribution1, index) + ")";
}
std::string specular_1 =
"(" + d1_lut_value + " * refl_value * " + light_src + ".specular_1)";
// Fresnel
if (lighting.lut_fr.enable && Pica::Regs::IsLightingSamplerSupported(
lighting.config, Pica::Regs::LightingSampler::Fresnel)) {
if (lighting.lut_fr.enable &&
LightingRegs::IsLightingSamplerSupported(lighting.config,
LightingRegs::LightingSampler::Fresnel)) {
// Lookup fresnel LUT value
std::string index =
GetLutIndex(light_config.num, lighting.lut_fr.type, lighting.lut_fr.abs_input);
std::string value = "(" + std::to_string(lighting.lut_fr.scale) + " * " +
GetLutValue(Regs::LightingSampler::Fresnel, index) + ")";
GetLutValue(LightingRegs::LightingSampler::Fresnel, index) + ")";
// Enabled for difffuse lighting alpha component
if (lighting.fresnel_selector == Pica::Regs::LightingFresnelSelector::PrimaryAlpha ||
lighting.fresnel_selector == Pica::Regs::LightingFresnelSelector::Both)
if (lighting.fresnel_selector == LightingRegs::LightingFresnelSelector::PrimaryAlpha ||
lighting.fresnel_selector == LightingRegs::LightingFresnelSelector::Both) {
out += "diffuse_sum.a *= " + value + ";\n";
}
// Enabled for the specular lighting alpha component
if (lighting.fresnel_selector == Pica::Regs::LightingFresnelSelector::SecondaryAlpha ||
lighting.fresnel_selector == Pica::Regs::LightingFresnelSelector::Both)
if (lighting.fresnel_selector ==
LightingRegs::LightingFresnelSelector::SecondaryAlpha ||
lighting.fresnel_selector == LightingRegs::LightingFresnelSelector::Both) {
out += "specular_sum.a *= " + value + ";\n";
}
}
// Compute primary fragment color (diffuse lighting) function

2
src/video_core/renderer_opengl/pica_to_gl.h
View file

@ -210,7 +210,7 @@ inline GLvec4 ColorRGBA8(const u32 color) {
}};
}
inline std::array<GLfloat, 3> LightColor(const Pica::Regs::LightColor& color) {
inline std::array<GLfloat, 3> LightColor(const Pica::LightingRegs::LightColor& color) {
return {{
color.r / 255.0f, color.g / 255.0f, color.b / 255.0f,
}};