VideoCore: Split lighting regs from Regs struct
This commit is contained in:
parent
23713d5dee
commit
f443c7e5b0
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@ -33,6 +33,7 @@ set(HEADERS
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rasterizer.h
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rasterizer.h
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rasterizer_interface.h
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rasterizer_interface.h
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regs_framebuffer.h
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regs_framebuffer.h
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regs_lighting.h
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regs_rasterizer.h
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regs_rasterizer.h
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regs_texturing.h
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regs_texturing.h
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renderer_base.h
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renderer_base.h
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@ -19,6 +19,7 @@
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#include "common/logging/log.h"
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#include "common/logging/log.h"
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#include "common/vector_math.h"
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#include "common/vector_math.h"
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#include "video_core/regs_framebuffer.h"
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#include "video_core/regs_framebuffer.h"
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#include "video_core/regs_lighting.h"
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#include "video_core/regs_rasterizer.h"
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#include "video_core/regs_rasterizer.h"
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#include "video_core/regs_texturing.h"
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#include "video_core/regs_texturing.h"
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@ -53,281 +54,7 @@ struct Regs {
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RasterizerRegs rasterizer;
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RasterizerRegs rasterizer;
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TexturingRegs texturing;
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TexturingRegs texturing;
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FramebufferRegs framebuffer;
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FramebufferRegs framebuffer;
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LightingRegs lighting;
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enum class LightingSampler {
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Distribution0 = 0,
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Distribution1 = 1,
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Fresnel = 3,
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ReflectBlue = 4,
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ReflectGreen = 5,
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ReflectRed = 6,
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SpotlightAttenuation = 8,
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DistanceAttenuation = 16,
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};
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/**
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* Pica fragment lighting supports using different LUTs for each lighting component:
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* Reflectance R, G, and B channels, distribution function for specular components 0 and 1,
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* fresnel factor, and spotlight attenuation. Furthermore, which LUTs are used for each channel
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* (or whether a channel is enabled at all) is specified by various pre-defined lighting
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* configurations. With configurations that require more LUTs, more cycles are required on HW to
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* perform lighting computations.
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*/
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enum class LightingConfig {
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Config0 = 0, ///< Reflect Red, Distribution 0, Spotlight
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Config1 = 1, ///< Reflect Red, Fresnel, Spotlight
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Config2 = 2, ///< Reflect Red, Distribution 0/1
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Config3 = 3, ///< Distribution 0/1, Fresnel
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Config4 = 4, ///< Reflect Red/Green/Blue, Distribution 0/1, Spotlight
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Config5 = 5, ///< Reflect Red/Green/Blue, Distribution 0, Fresnel, Spotlight
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Config6 = 6, ///< Reflect Red, Distribution 0/1, Fresnel, Spotlight
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Config7 = 8, ///< Reflect Red/Green/Blue, Distribution 0/1, Fresnel, Spotlight
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///< NOTE: '8' is intentional, '7' does not appear to be a valid configuration
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};
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/// Selects which lighting components are affected by fresnel
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enum class LightingFresnelSelector {
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None = 0, ///< Fresnel is disabled
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PrimaryAlpha = 1, ///< Primary (diffuse) lighting alpha is affected by fresnel
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SecondaryAlpha = 2, ///< Secondary (specular) lighting alpha is affected by fresnel
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Both =
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PrimaryAlpha |
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SecondaryAlpha, ///< Both primary and secondary lighting alphas are affected by fresnel
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};
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/// Factor used to scale the output of a lighting LUT
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enum class LightingScale {
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Scale1 = 0, ///< Scale is 1x
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Scale2 = 1, ///< Scale is 2x
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Scale4 = 2, ///< Scale is 4x
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Scale8 = 3, ///< Scale is 8x
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Scale1_4 = 6, ///< Scale is 0.25x
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Scale1_2 = 7, ///< Scale is 0.5x
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};
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enum class LightingLutInput {
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NH = 0, // Cosine of the angle between the normal and half-angle vectors
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VH = 1, // Cosine of the angle between the view and half-angle vectors
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NV = 2, // Cosine of the angle between the normal and the view vector
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LN = 3, // Cosine of the angle between the light and the normal vectors
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};
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enum class LightingBumpMode : u32 {
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None = 0,
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NormalMap = 1,
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TangentMap = 2,
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};
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union LightColor {
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BitField<0, 10, u32> b;
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BitField<10, 10, u32> g;
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BitField<20, 10, u32> r;
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Math::Vec3f ToVec3f() const {
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// These fields are 10 bits wide, however 255 corresponds to 1.0f for each color
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// component
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return Math::MakeVec((f32)r / 255.f, (f32)g / 255.f, (f32)b / 255.f);
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}
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};
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/// Returns true if the specified lighting sampler is supported by the current Pica lighting
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/// configuration
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static bool IsLightingSamplerSupported(LightingConfig config, LightingSampler sampler) {
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switch (sampler) {
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case LightingSampler::Distribution0:
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return (config != LightingConfig::Config1);
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case LightingSampler::Distribution1:
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return (config != LightingConfig::Config0) && (config != LightingConfig::Config1) &&
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(config != LightingConfig::Config5);
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case LightingSampler::Fresnel:
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return (config != LightingConfig::Config0) && (config != LightingConfig::Config2) &&
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(config != LightingConfig::Config4);
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case LightingSampler::ReflectRed:
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return (config != LightingConfig::Config3);
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case LightingSampler::ReflectGreen:
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case LightingSampler::ReflectBlue:
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return (config == LightingConfig::Config4) || (config == LightingConfig::Config5) ||
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(config == LightingConfig::Config7);
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default:
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UNREACHABLE_MSG("Regs::IsLightingSamplerSupported: Reached "
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"unreachable section, sampler should be one "
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"of Distribution0, Distribution1, Fresnel, "
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"ReflectRed, ReflectGreen or ReflectBlue, instead "
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"got %i",
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static_cast<int>(config));
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}
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}
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struct {
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struct LightSrc {
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LightColor specular_0; // material.specular_0 * light.specular_0
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LightColor specular_1; // material.specular_1 * light.specular_1
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LightColor diffuse; // material.diffuse * light.diffuse
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LightColor ambient; // material.ambient * light.ambient
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// Encoded as 16-bit floating point
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union {
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BitField<0, 16, u32> x;
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BitField<16, 16, u32> y;
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};
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union {
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BitField<0, 16, u32> z;
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};
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INSERT_PADDING_WORDS(0x3);
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union {
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BitField<0, 1, u32> directional;
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BitField<1, 1, u32> two_sided_diffuse; // When disabled, clamp dot-product to 0
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} config;
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BitField<0, 20, u32> dist_atten_bias;
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BitField<0, 20, u32> dist_atten_scale;
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INSERT_PADDING_WORDS(0x4);
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};
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static_assert(sizeof(LightSrc) == 0x10 * sizeof(u32),
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"LightSrc structure must be 0x10 words");
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LightSrc light[8];
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LightColor global_ambient; // Emission + (material.ambient * lighting.ambient)
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INSERT_PADDING_WORDS(0x1);
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BitField<0, 3, u32> max_light_index; // Number of enabled lights - 1
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union {
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BitField<2, 2, LightingFresnelSelector> fresnel_selector;
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BitField<4, 4, LightingConfig> config;
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BitField<22, 2, u32> bump_selector; // 0: Texture 0, 1: Texture 1, 2: Texture 2
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BitField<27, 1, u32> clamp_highlights;
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BitField<28, 2, LightingBumpMode> bump_mode;
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BitField<30, 1, u32> disable_bump_renorm;
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} config0;
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union {
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BitField<16, 1, u32> disable_lut_d0;
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BitField<17, 1, u32> disable_lut_d1;
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BitField<19, 1, u32> disable_lut_fr;
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BitField<20, 1, u32> disable_lut_rr;
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BitField<21, 1, u32> disable_lut_rg;
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BitField<22, 1, u32> disable_lut_rb;
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// Each bit specifies whether distance attenuation should be applied for the
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// corresponding light
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BitField<24, 1, u32> disable_dist_atten_light_0;
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BitField<25, 1, u32> disable_dist_atten_light_1;
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BitField<26, 1, u32> disable_dist_atten_light_2;
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BitField<27, 1, u32> disable_dist_atten_light_3;
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BitField<28, 1, u32> disable_dist_atten_light_4;
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BitField<29, 1, u32> disable_dist_atten_light_5;
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BitField<30, 1, u32> disable_dist_atten_light_6;
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BitField<31, 1, u32> disable_dist_atten_light_7;
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} config1;
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bool IsDistAttenDisabled(unsigned index) const {
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const unsigned disable[] = {
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config1.disable_dist_atten_light_0, config1.disable_dist_atten_light_1,
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config1.disable_dist_atten_light_2, config1.disable_dist_atten_light_3,
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config1.disable_dist_atten_light_4, config1.disable_dist_atten_light_5,
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config1.disable_dist_atten_light_6, config1.disable_dist_atten_light_7};
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return disable[index] != 0;
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}
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union {
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BitField<0, 8, u32> index; ///< Index at which to set data in the LUT
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BitField<8, 5, u32> type; ///< Type of LUT for which to set data
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} lut_config;
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BitField<0, 1, u32> disable;
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INSERT_PADDING_WORDS(0x1);
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// When data is written to any of these registers, it gets written to the lookup table of
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// the selected type at the selected index, specified above in the `lut_config` register.
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// With each write, `lut_config.index` is incremented. It does not matter which of these
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// registers is written to, the behavior will be the same.
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u32 lut_data[8];
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// These are used to specify if absolute (abs) value should be used for each LUT index. When
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// abs mode is disabled, LUT indexes are in the range of (-1.0, 1.0). Otherwise, they are in
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// the range of (0.0, 1.0).
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union {
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BitField<1, 1, u32> disable_d0;
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BitField<5, 1, u32> disable_d1;
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BitField<9, 1, u32> disable_sp;
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BitField<13, 1, u32> disable_fr;
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BitField<17, 1, u32> disable_rb;
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BitField<21, 1, u32> disable_rg;
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BitField<25, 1, u32> disable_rr;
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} abs_lut_input;
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union {
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BitField<0, 3, LightingLutInput> d0;
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BitField<4, 3, LightingLutInput> d1;
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BitField<8, 3, LightingLutInput> sp;
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BitField<12, 3, LightingLutInput> fr;
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BitField<16, 3, LightingLutInput> rb;
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BitField<20, 3, LightingLutInput> rg;
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BitField<24, 3, LightingLutInput> rr;
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} lut_input;
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union {
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BitField<0, 3, LightingScale> d0;
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BitField<4, 3, LightingScale> d1;
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BitField<8, 3, LightingScale> sp;
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BitField<12, 3, LightingScale> fr;
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BitField<16, 3, LightingScale> rb;
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BitField<20, 3, LightingScale> rg;
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BitField<24, 3, LightingScale> rr;
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static float GetScale(LightingScale scale) {
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switch (scale) {
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case LightingScale::Scale1:
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return 1.0f;
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case LightingScale::Scale2:
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return 2.0f;
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case LightingScale::Scale4:
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return 4.0f;
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case LightingScale::Scale8:
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return 8.0f;
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case LightingScale::Scale1_4:
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return 0.25f;
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case LightingScale::Scale1_2:
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return 0.5f;
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}
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return 0.0f;
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}
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} lut_scale;
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INSERT_PADDING_WORDS(0x6);
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union {
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// There are 8 light enable "slots", corresponding to the total number of lights
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// supported by Pica. For N enabled lights (specified by register 0x1c2, or 'src_num'
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// above), the first N slots below will be set to integers within the range of 0-7,
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// corresponding to the actual light that is enabled for each slot.
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BitField<0, 3, u32> slot_0;
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BitField<4, 3, u32> slot_1;
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BitField<8, 3, u32> slot_2;
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BitField<12, 3, u32> slot_3;
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BitField<16, 3, u32> slot_4;
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BitField<20, 3, u32> slot_5;
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BitField<24, 3, u32> slot_6;
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BitField<28, 3, u32> slot_7;
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unsigned GetNum(unsigned index) const {
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const unsigned enable_slots[] = {slot_0, slot_1, slot_2, slot_3,
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slot_4, slot_5, slot_6, slot_7};
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return enable_slots[index];
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}
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} light_enable;
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} lighting;
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INSERT_PADDING_WORDS(0x26);
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enum class VertexAttributeFormat : u64 {
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enum class VertexAttributeFormat : u64 {
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BYTE = 0,
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BYTE = 0,
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@ -702,6 +429,7 @@ ASSERT_REG_POSITION(framebuffer.output_merger, 0x100);
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ASSERT_REG_POSITION(framebuffer.framebuffer, 0x110);
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ASSERT_REG_POSITION(framebuffer.framebuffer, 0x110);
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ASSERT_REG_POSITION(lighting, 0x140);
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ASSERT_REG_POSITION(lighting, 0x140);
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ASSERT_REG_POSITION(vertex_attributes, 0x200);
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ASSERT_REG_POSITION(vertex_attributes, 0x200);
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ASSERT_REG_POSITION(index_array, 0x227);
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ASSERT_REG_POSITION(index_array, 0x227);
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ASSERT_REG_POSITION(num_vertices, 0x228);
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ASSERT_REG_POSITION(num_vertices, 0x228);
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@ -0,0 +1,292 @@
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// Copyright 2017 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include "common/bit_field.h"
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#include "common/common_funcs.h"
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#include "common/common_types.h"
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namespace Pica {
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struct LightingRegs {
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enum class LightingSampler {
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Distribution0 = 0,
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Distribution1 = 1,
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Fresnel = 3,
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ReflectBlue = 4,
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ReflectGreen = 5,
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ReflectRed = 6,
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SpotlightAttenuation = 8,
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DistanceAttenuation = 16,
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};
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/**
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* Pica fragment lighting supports using different LUTs for each lighting component: Reflectance
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* R, G, and B channels, distribution function for specular components 0 and 1, fresnel factor,
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* and spotlight attenuation. Furthermore, which LUTs are used for each channel (or whether a
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* channel is enabled at all) is specified by various pre-defined lighting configurations. With
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* configurations that require more LUTs, more cycles are required on HW to perform lighting
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* computations.
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*/
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enum class LightingConfig {
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Config0 = 0, ///< Reflect Red, Distribution 0, Spotlight
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Config1 = 1, ///< Reflect Red, Fresnel, Spotlight
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Config2 = 2, ///< Reflect Red, Distribution 0/1
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Config3 = 3, ///< Distribution 0/1, Fresnel
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||||||
|
Config4 = 4, ///< Reflect Red/Green/Blue, Distribution 0/1, Spotlight
|
||||||
|
Config5 = 5, ///< Reflect Red/Green/Blue, Distribution 0, Fresnel, Spotlight
|
||||||
|
Config6 = 6, ///< Reflect Red, Distribution 0/1, Fresnel, Spotlight
|
||||||
|
|
||||||
|
Config7 = 8, ///< Reflect Red/Green/Blue, Distribution 0/1, Fresnel, Spotlight
|
||||||
|
///< NOTE: '8' is intentional, '7' does not appear to be a valid configuration
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Selects which lighting components are affected by fresnel
|
||||||
|
enum class LightingFresnelSelector {
|
||||||
|
None = 0, ///< Fresnel is disabled
|
||||||
|
PrimaryAlpha = 1, ///< Primary (diffuse) lighting alpha is affected by fresnel
|
||||||
|
SecondaryAlpha = 2, ///< Secondary (specular) lighting alpha is affected by fresnel
|
||||||
|
Both =
|
||||||
|
PrimaryAlpha |
|
||||||
|
SecondaryAlpha, ///< Both primary and secondary lighting alphas are affected by fresnel
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Factor used to scale the output of a lighting LUT
|
||||||
|
enum class LightingScale {
|
||||||
|
Scale1 = 0, ///< Scale is 1x
|
||||||
|
Scale2 = 1, ///< Scale is 2x
|
||||||
|
Scale4 = 2, ///< Scale is 4x
|
||||||
|
Scale8 = 3, ///< Scale is 8x
|
||||||
|
|
||||||
|
Scale1_4 = 6, ///< Scale is 0.25x
|
||||||
|
Scale1_2 = 7, ///< Scale is 0.5x
|
||||||
|
};
|
||||||
|
|
||||||
|
enum class LightingLutInput {
|
||||||
|
NH = 0, // Cosine of the angle between the normal and half-angle vectors
|
||||||
|
VH = 1, // Cosine of the angle between the view and half-angle vectors
|
||||||
|
NV = 2, // Cosine of the angle between the normal and the view vector
|
||||||
|
LN = 3, // Cosine of the angle between the light and the normal vectors
|
||||||
|
};
|
||||||
|
|
||||||
|
enum class LightingBumpMode : u32 {
|
||||||
|
None = 0,
|
||||||
|
NormalMap = 1,
|
||||||
|
TangentMap = 2,
|
||||||
|
};
|
||||||
|
|
||||||
|
union LightColor {
|
||||||
|
BitField<0, 10, u32> b;
|
||||||
|
BitField<10, 10, u32> g;
|
||||||
|
BitField<20, 10, u32> r;
|
||||||
|
|
||||||
|
Math::Vec3f ToVec3f() const {
|
||||||
|
// These fields are 10 bits wide, however 255 corresponds to 1.0f for each color
|
||||||
|
// component
|
||||||
|
return Math::MakeVec((f32)r / 255.f, (f32)g / 255.f, (f32)b / 255.f);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Returns true if the specified lighting sampler is supported by the current Pica lighting
|
||||||
|
/// configuration
|
||||||
|
static bool IsLightingSamplerSupported(LightingConfig config, LightingSampler sampler) {
|
||||||
|
switch (sampler) {
|
||||||
|
case LightingSampler::Distribution0:
|
||||||
|
return (config != LightingConfig::Config1);
|
||||||
|
|
||||||
|
case LightingSampler::Distribution1:
|
||||||
|
return (config != LightingConfig::Config0) && (config != LightingConfig::Config1) &&
|
||||||
|
(config != LightingConfig::Config5);
|
||||||
|
|
||||||
|
case LightingSampler::Fresnel:
|
||||||
|
return (config != LightingConfig::Config0) && (config != LightingConfig::Config2) &&
|
||||||
|
(config != LightingConfig::Config4);
|
||||||
|
|
||||||
|
case LightingSampler::ReflectRed:
|
||||||
|
return (config != LightingConfig::Config3);
|
||||||
|
|
||||||
|
case LightingSampler::ReflectGreen:
|
||||||
|
case LightingSampler::ReflectBlue:
|
||||||
|
return (config == LightingConfig::Config4) || (config == LightingConfig::Config5) ||
|
||||||
|
(config == LightingConfig::Config7);
|
||||||
|
default:
|
||||||
|
UNREACHABLE_MSG("Regs::IsLightingSamplerSupported: Reached "
|
||||||
|
"unreachable section, sampler should be one "
|
||||||
|
"of Distribution0, Distribution1, Fresnel, "
|
||||||
|
"ReflectRed, ReflectGreen or ReflectBlue, instead "
|
||||||
|
"got %i",
|
||||||
|
static_cast<int>(config));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
struct LightSrc {
|
||||||
|
LightColor specular_0; // material.specular_0 * light.specular_0
|
||||||
|
LightColor specular_1; // material.specular_1 * light.specular_1
|
||||||
|
LightColor diffuse; // material.diffuse * light.diffuse
|
||||||
|
LightColor ambient; // material.ambient * light.ambient
|
||||||
|
|
||||||
|
// Encoded as 16-bit floating point
|
||||||
|
union {
|
||||||
|
BitField<0, 16, u32> x;
|
||||||
|
BitField<16, 16, u32> y;
|
||||||
|
};
|
||||||
|
union {
|
||||||
|
BitField<0, 16, u32> z;
|
||||||
|
};
|
||||||
|
|
||||||
|
INSERT_PADDING_WORDS(0x3);
|
||||||
|
|
||||||
|
union {
|
||||||
|
BitField<0, 1, u32> directional;
|
||||||
|
BitField<1, 1, u32> two_sided_diffuse; // When disabled, clamp dot-product to 0
|
||||||
|
} config;
|
||||||
|
|
||||||
|
BitField<0, 20, u32> dist_atten_bias;
|
||||||
|
BitField<0, 20, u32> dist_atten_scale;
|
||||||
|
|
||||||
|
INSERT_PADDING_WORDS(0x4);
|
||||||
|
};
|
||||||
|
static_assert(sizeof(LightSrc) == 0x10 * sizeof(u32), "LightSrc structure must be 0x10 words");
|
||||||
|
|
||||||
|
LightSrc light[8];
|
||||||
|
LightColor global_ambient; // Emission + (material.ambient * lighting.ambient)
|
||||||
|
INSERT_PADDING_WORDS(0x1);
|
||||||
|
BitField<0, 3, u32> max_light_index; // Number of enabled lights - 1
|
||||||
|
|
||||||
|
union {
|
||||||
|
BitField<2, 2, LightingFresnelSelector> fresnel_selector;
|
||||||
|
BitField<4, 4, LightingConfig> config;
|
||||||
|
BitField<22, 2, u32> bump_selector; // 0: Texture 0, 1: Texture 1, 2: Texture 2
|
||||||
|
BitField<27, 1, u32> clamp_highlights;
|
||||||
|
BitField<28, 2, LightingBumpMode> bump_mode;
|
||||||
|
BitField<30, 1, u32> disable_bump_renorm;
|
||||||
|
} config0;
|
||||||
|
|
||||||
|
union {
|
||||||
|
BitField<16, 1, u32> disable_lut_d0;
|
||||||
|
BitField<17, 1, u32> disable_lut_d1;
|
||||||
|
BitField<19, 1, u32> disable_lut_fr;
|
||||||
|
BitField<20, 1, u32> disable_lut_rr;
|
||||||
|
BitField<21, 1, u32> disable_lut_rg;
|
||||||
|
BitField<22, 1, u32> disable_lut_rb;
|
||||||
|
|
||||||
|
// Each bit specifies whether distance attenuation should be applied for the corresponding
|
||||||
|
// light.
|
||||||
|
BitField<24, 1, u32> disable_dist_atten_light_0;
|
||||||
|
BitField<25, 1, u32> disable_dist_atten_light_1;
|
||||||
|
BitField<26, 1, u32> disable_dist_atten_light_2;
|
||||||
|
BitField<27, 1, u32> disable_dist_atten_light_3;
|
||||||
|
BitField<28, 1, u32> disable_dist_atten_light_4;
|
||||||
|
BitField<29, 1, u32> disable_dist_atten_light_5;
|
||||||
|
BitField<30, 1, u32> disable_dist_atten_light_6;
|
||||||
|
BitField<31, 1, u32> disable_dist_atten_light_7;
|
||||||
|
} config1;
|
||||||
|
|
||||||
|
bool IsDistAttenDisabled(unsigned index) const {
|
||||||
|
const unsigned disable[] = {
|
||||||
|
config1.disable_dist_atten_light_0, config1.disable_dist_atten_light_1,
|
||||||
|
config1.disable_dist_atten_light_2, config1.disable_dist_atten_light_3,
|
||||||
|
config1.disable_dist_atten_light_4, config1.disable_dist_atten_light_5,
|
||||||
|
config1.disable_dist_atten_light_6, config1.disable_dist_atten_light_7};
|
||||||
|
return disable[index] != 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
union {
|
||||||
|
BitField<0, 8, u32> index; ///< Index at which to set data in the LUT
|
||||||
|
BitField<8, 5, u32> type; ///< Type of LUT for which to set data
|
||||||
|
} lut_config;
|
||||||
|
|
||||||
|
BitField<0, 1, u32> disable;
|
||||||
|
INSERT_PADDING_WORDS(0x1);
|
||||||
|
|
||||||
|
// When data is written to any of these registers, it gets written to the lookup table of the
|
||||||
|
// selected type at the selected index, specified above in the `lut_config` register. With each
|
||||||
|
// write, `lut_config.index` is incremented. It does not matter which of these registers is
|
||||||
|
// written to, the behavior will be the same.
|
||||||
|
u32 lut_data[8];
|
||||||
|
|
||||||
|
// These are used to specify if absolute (abs) value should be used for each LUT index. When
|
||||||
|
// abs mode is disabled, LUT indexes are in the range of (-1.0, 1.0). Otherwise, they are in
|
||||||
|
// the range of (0.0, 1.0).
|
||||||
|
union {
|
||||||
|
BitField<1, 1, u32> disable_d0;
|
||||||
|
BitField<5, 1, u32> disable_d1;
|
||||||
|
BitField<9, 1, u32> disable_sp;
|
||||||
|
BitField<13, 1, u32> disable_fr;
|
||||||
|
BitField<17, 1, u32> disable_rb;
|
||||||
|
BitField<21, 1, u32> disable_rg;
|
||||||
|
BitField<25, 1, u32> disable_rr;
|
||||||
|
} abs_lut_input;
|
||||||
|
|
||||||
|
union {
|
||||||
|
BitField<0, 3, LightingLutInput> d0;
|
||||||
|
BitField<4, 3, LightingLutInput> d1;
|
||||||
|
BitField<8, 3, LightingLutInput> sp;
|
||||||
|
BitField<12, 3, LightingLutInput> fr;
|
||||||
|
BitField<16, 3, LightingLutInput> rb;
|
||||||
|
BitField<20, 3, LightingLutInput> rg;
|
||||||
|
BitField<24, 3, LightingLutInput> rr;
|
||||||
|
} lut_input;
|
||||||
|
|
||||||
|
union {
|
||||||
|
BitField<0, 3, LightingScale> d0;
|
||||||
|
BitField<4, 3, LightingScale> d1;
|
||||||
|
BitField<8, 3, LightingScale> sp;
|
||||||
|
BitField<12, 3, LightingScale> fr;
|
||||||
|
BitField<16, 3, LightingScale> rb;
|
||||||
|
BitField<20, 3, LightingScale> rg;
|
||||||
|
BitField<24, 3, LightingScale> rr;
|
||||||
|
|
||||||
|
static float GetScale(LightingScale scale) {
|
||||||
|
switch (scale) {
|
||||||
|
case LightingScale::Scale1:
|
||||||
|
return 1.0f;
|
||||||
|
case LightingScale::Scale2:
|
||||||
|
return 2.0f;
|
||||||
|
case LightingScale::Scale4:
|
||||||
|
return 4.0f;
|
||||||
|
case LightingScale::Scale8:
|
||||||
|
return 8.0f;
|
||||||
|
case LightingScale::Scale1_4:
|
||||||
|
return 0.25f;
|
||||||
|
case LightingScale::Scale1_2:
|
||||||
|
return 0.5f;
|
||||||
|
}
|
||||||
|
return 0.0f;
|
||||||
|
}
|
||||||
|
} lut_scale;
|
||||||
|
|
||||||
|
INSERT_PADDING_WORDS(0x6);
|
||||||
|
|
||||||
|
union {
|
||||||
|
// There are 8 light enable "slots", corresponding to the total number of lights supported
|
||||||
|
// by Pica. For N enabled lights (specified by register 0x1c2, or 'src_num' above), the
|
||||||
|
// first N slots below will be set to integers within the range of 0-7, corresponding to the
|
||||||
|
// actual light that is enabled for each slot.
|
||||||
|
|
||||||
|
BitField<0, 3, u32> slot_0;
|
||||||
|
BitField<4, 3, u32> slot_1;
|
||||||
|
BitField<8, 3, u32> slot_2;
|
||||||
|
BitField<12, 3, u32> slot_3;
|
||||||
|
BitField<16, 3, u32> slot_4;
|
||||||
|
BitField<20, 3, u32> slot_5;
|
||||||
|
BitField<24, 3, u32> slot_6;
|
||||||
|
BitField<28, 3, u32> slot_7;
|
||||||
|
|
||||||
|
unsigned GetNum(unsigned index) const {
|
||||||
|
const unsigned enable_slots[] = {slot_0, slot_1, slot_2, slot_3,
|
||||||
|
slot_4, slot_5, slot_6, slot_7};
|
||||||
|
return enable_slots[index];
|
||||||
|
}
|
||||||
|
} light_enable;
|
||||||
|
|
||||||
|
INSERT_PADDING_WORDS(0x26);
|
||||||
|
};
|
||||||
|
|
||||||
|
static_assert(sizeof(LightingRegs) == 0xC0 * sizeof(u32), "LightingRegs struct has incorrect size");
|
||||||
|
|
||||||
|
} // namespace Pica
|
|
@ -192,18 +192,18 @@ union PicaShaderConfig {
|
||||||
|
|
||||||
bool enable;
|
bool enable;
|
||||||
unsigned src_num;
|
unsigned src_num;
|
||||||
Pica::Regs::LightingBumpMode bump_mode;
|
Pica::LightingRegs::LightingBumpMode bump_mode;
|
||||||
unsigned bump_selector;
|
unsigned bump_selector;
|
||||||
bool bump_renorm;
|
bool bump_renorm;
|
||||||
bool clamp_highlights;
|
bool clamp_highlights;
|
||||||
|
|
||||||
Pica::Regs::LightingConfig config;
|
Pica::LightingRegs::LightingConfig config;
|
||||||
Pica::Regs::LightingFresnelSelector fresnel_selector;
|
Pica::LightingRegs::LightingFresnelSelector fresnel_selector;
|
||||||
|
|
||||||
struct {
|
struct {
|
||||||
bool enable;
|
bool enable;
|
||||||
bool abs_input;
|
bool abs_input;
|
||||||
Pica::Regs::LightingLutInput type;
|
Pica::LightingRegs::LightingLutInput type;
|
||||||
float scale;
|
float scale;
|
||||||
} lut_d0, lut_d1, lut_fr, lut_rr, lut_rg, lut_rb;
|
} lut_d0, lut_d1, lut_fr, lut_rr, lut_rg, lut_rb;
|
||||||
} lighting;
|
} lighting;
|
||||||
|
|
|
@ -14,6 +14,7 @@
|
||||||
|
|
||||||
using Pica::Regs;
|
using Pica::Regs;
|
||||||
using Pica::RasterizerRegs;
|
using Pica::RasterizerRegs;
|
||||||
|
using Pica::LightingRegs;
|
||||||
using TevStageConfig = Pica::TexturingRegs::TevStageConfig;
|
using TevStageConfig = Pica::TexturingRegs::TevStageConfig;
|
||||||
|
|
||||||
namespace GLShader {
|
namespace GLShader {
|
||||||
|
@ -365,7 +366,7 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
|
||||||
"vec3 refl_value = vec3(0.0);\n";
|
"vec3 refl_value = vec3(0.0);\n";
|
||||||
|
|
||||||
// Compute fragment normals
|
// 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
|
// Bump mapping is enabled using a normal map, read perturbation vector from the selected
|
||||||
// texture
|
// texture
|
||||||
std::string bump_selector = std::to_string(lighting.bump_selector);
|
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))";
|
"(1.0 - (surface_normal.x*surface_normal.x + surface_normal.y*surface_normal.y))";
|
||||||
out += "surface_normal.z = sqrt(max(" + val + ", 0.0));\n";
|
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
|
// Bump mapping is enabled using a tangent map
|
||||||
LOG_CRITICAL(HW_GPU, "unimplemented bump mapping mode (tangent mapping)");
|
LOG_CRITICAL(HW_GPU, "unimplemented bump mapping mode (tangent mapping)");
|
||||||
UNIMPLEMENTED();
|
UNIMPLEMENTED();
|
||||||
|
@ -393,23 +394,24 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
|
||||||
out += "vec3 normal = normalize(quaternion_rotate(normquat, surface_normal));\n";
|
out += "vec3 normal = normalize(quaternion_rotate(normquat, surface_normal));\n";
|
||||||
|
|
||||||
// Gets the index into the specified lookup table for specular lighting
|
// 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)";
|
const std::string half_angle = "normalize(normalize(view) + light_vector)";
|
||||||
std::string index;
|
std::string index;
|
||||||
switch (input) {
|
switch (input) {
|
||||||
case Regs::LightingLutInput::NH:
|
case LightingRegs::LightingLutInput::NH:
|
||||||
index = "dot(normal, " + half_angle + ")";
|
index = "dot(normal, " + half_angle + ")";
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case Regs::LightingLutInput::VH:
|
case LightingRegs::LightingLutInput::VH:
|
||||||
index = std::string("dot(normalize(view), " + half_angle + ")");
|
index = std::string("dot(normalize(view), " + half_angle + ")");
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case Regs::LightingLutInput::NV:
|
case LightingRegs::LightingLutInput::NV:
|
||||||
index = std::string("dot(normal, normalize(view))");
|
index = std::string("dot(normal, normalize(view))");
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case Regs::LightingLutInput::LN:
|
case LightingRegs::LightingLutInput::LN:
|
||||||
index = std::string("dot(light_vector, normal)");
|
index = std::string("dot(light_vector, normal)");
|
||||||
break;
|
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
|
// 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) + "], " +
|
return std::string("texture(lut[" + std::to_string((unsigned)sampler / 4) + "], " +
|
||||||
lut_index + ")[" + std::to_string((unsigned)sampler & 3) + "]");
|
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)";
|
light_src + ".position) + " + light_src + ".dist_atten_bias)";
|
||||||
index = "(OFFSET_256 + SCALE_256 * clamp(" + index + ", 0.0, 1.0))";
|
index = "(OFFSET_256 + SCALE_256 * clamp(" + index + ", 0.0, 1.0))";
|
||||||
const unsigned lut_num =
|
const unsigned lut_num =
|
||||||
((unsigned)Regs::LightingSampler::DistanceAttenuation + light_config.num);
|
((unsigned)LightingRegs::LightingSampler::DistanceAttenuation + light_config.num);
|
||||||
dist_atten = GetLutValue((Regs::LightingSampler)lut_num, index);
|
dist_atten = GetLutValue((LightingRegs::LightingSampler)lut_num, index);
|
||||||
}
|
}
|
||||||
|
|
||||||
// If enabled, clamp specular component if lighting result is negative
|
// 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
|
// Specular 0 component
|
||||||
std::string d0_lut_value = "1.0";
|
std::string d0_lut_value = "1.0";
|
||||||
if (lighting.lut_d0.enable &&
|
if (lighting.lut_d0.enable &&
|
||||||
Pica::Regs::IsLightingSamplerSupported(lighting.config,
|
LightingRegs::IsLightingSamplerSupported(
|
||||||
Pica::Regs::LightingSampler::Distribution0)) {
|
lighting.config, LightingRegs::LightingSampler::Distribution0)) {
|
||||||
// Lookup specular "distribution 0" LUT value
|
// Lookup specular "distribution 0" LUT value
|
||||||
std::string index =
|
std::string index =
|
||||||
GetLutIndex(light_config.num, lighting.lut_d0.type, lighting.lut_d0.abs_input);
|
GetLutIndex(light_config.num, lighting.lut_d0.type, lighting.lut_d0.abs_input);
|
||||||
d0_lut_value = "(" + std::to_string(lighting.lut_d0.scale) + " * " +
|
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)";
|
std::string specular_0 = "(" + d0_lut_value + " * " + light_src + ".specular_0)";
|
||||||
|
|
||||||
// If enabled, lookup ReflectRed value, otherwise, 1.0 is used
|
// If enabled, lookup ReflectRed value, otherwise, 1.0 is used
|
||||||
if (lighting.lut_rr.enable &&
|
if (lighting.lut_rr.enable &&
|
||||||
Pica::Regs::IsLightingSamplerSupported(lighting.config,
|
LightingRegs::IsLightingSamplerSupported(lighting.config,
|
||||||
Pica::Regs::LightingSampler::ReflectRed)) {
|
LightingRegs::LightingSampler::ReflectRed)) {
|
||||||
std::string index =
|
std::string index =
|
||||||
GetLutIndex(light_config.num, lighting.lut_rr.type, lighting.lut_rr.abs_input);
|
GetLutIndex(light_config.num, lighting.lut_rr.type, lighting.lut_rr.abs_input);
|
||||||
std::string value = "(" + std::to_string(lighting.lut_rr.scale) + " * " +
|
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";
|
out += "refl_value.r = " + value + ";\n";
|
||||||
} else {
|
} else {
|
||||||
out += "refl_value.r = 1.0;\n";
|
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 enabled, lookup ReflectGreen value, otherwise, ReflectRed value is used
|
||||||
if (lighting.lut_rg.enable &&
|
if (lighting.lut_rg.enable &&
|
||||||
Pica::Regs::IsLightingSamplerSupported(lighting.config,
|
LightingRegs::IsLightingSamplerSupported(lighting.config,
|
||||||
Pica::Regs::LightingSampler::ReflectGreen)) {
|
LightingRegs::LightingSampler::ReflectGreen)) {
|
||||||
std::string index =
|
std::string index =
|
||||||
GetLutIndex(light_config.num, lighting.lut_rg.type, lighting.lut_rg.abs_input);
|
GetLutIndex(light_config.num, lighting.lut_rg.type, lighting.lut_rg.abs_input);
|
||||||
std::string value = "(" + std::to_string(lighting.lut_rg.scale) + " * " +
|
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";
|
out += "refl_value.g = " + value + ";\n";
|
||||||
} else {
|
} else {
|
||||||
out += "refl_value.g = refl_value.r;\n";
|
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 enabled, lookup ReflectBlue value, otherwise, ReflectRed value is used
|
||||||
if (lighting.lut_rb.enable &&
|
if (lighting.lut_rb.enable &&
|
||||||
Pica::Regs::IsLightingSamplerSupported(lighting.config,
|
LightingRegs::IsLightingSamplerSupported(lighting.config,
|
||||||
Pica::Regs::LightingSampler::ReflectBlue)) {
|
LightingRegs::LightingSampler::ReflectBlue)) {
|
||||||
std::string index =
|
std::string index =
|
||||||
GetLutIndex(light_config.num, lighting.lut_rb.type, lighting.lut_rb.abs_input);
|
GetLutIndex(light_config.num, lighting.lut_rb.type, lighting.lut_rb.abs_input);
|
||||||
std::string value = "(" + std::to_string(lighting.lut_rb.scale) + " * " +
|
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";
|
out += "refl_value.b = " + value + ";\n";
|
||||||
} else {
|
} else {
|
||||||
out += "refl_value.b = refl_value.r;\n";
|
out += "refl_value.b = refl_value.r;\n";
|
||||||
|
@ -525,36 +529,40 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
|
||||||
// Specular 1 component
|
// Specular 1 component
|
||||||
std::string d1_lut_value = "1.0";
|
std::string d1_lut_value = "1.0";
|
||||||
if (lighting.lut_d1.enable &&
|
if (lighting.lut_d1.enable &&
|
||||||
Pica::Regs::IsLightingSamplerSupported(lighting.config,
|
LightingRegs::IsLightingSamplerSupported(
|
||||||
Pica::Regs::LightingSampler::Distribution1)) {
|
lighting.config, LightingRegs::LightingSampler::Distribution1)) {
|
||||||
// Lookup specular "distribution 1" LUT value
|
// Lookup specular "distribution 1" LUT value
|
||||||
std::string index =
|
std::string index =
|
||||||
GetLutIndex(light_config.num, lighting.lut_d1.type, lighting.lut_d1.abs_input);
|
GetLutIndex(light_config.num, lighting.lut_d1.type, lighting.lut_d1.abs_input);
|
||||||
d1_lut_value = "(" + std::to_string(lighting.lut_d1.scale) + " * " +
|
d1_lut_value = "(" + std::to_string(lighting.lut_d1.scale) + " * " +
|
||||||
GetLutValue(Regs::LightingSampler::Distribution1, index) + ")";
|
GetLutValue(LightingRegs::LightingSampler::Distribution1, index) + ")";
|
||||||
}
|
}
|
||||||
std::string specular_1 =
|
std::string specular_1 =
|
||||||
"(" + d1_lut_value + " * refl_value * " + light_src + ".specular_1)";
|
"(" + d1_lut_value + " * refl_value * " + light_src + ".specular_1)";
|
||||||
|
|
||||||
// Fresnel
|
// Fresnel
|
||||||
if (lighting.lut_fr.enable && Pica::Regs::IsLightingSamplerSupported(
|
if (lighting.lut_fr.enable &&
|
||||||
lighting.config, Pica::Regs::LightingSampler::Fresnel)) {
|
LightingRegs::IsLightingSamplerSupported(lighting.config,
|
||||||
|
LightingRegs::LightingSampler::Fresnel)) {
|
||||||
// Lookup fresnel LUT value
|
// Lookup fresnel LUT value
|
||||||
std::string index =
|
std::string index =
|
||||||
GetLutIndex(light_config.num, lighting.lut_fr.type, lighting.lut_fr.abs_input);
|
GetLutIndex(light_config.num, lighting.lut_fr.type, lighting.lut_fr.abs_input);
|
||||||
std::string value = "(" + std::to_string(lighting.lut_fr.scale) + " * " +
|
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
|
// Enabled for difffuse lighting alpha component
|
||||||
if (lighting.fresnel_selector == Pica::Regs::LightingFresnelSelector::PrimaryAlpha ||
|
if (lighting.fresnel_selector == LightingRegs::LightingFresnelSelector::PrimaryAlpha ||
|
||||||
lighting.fresnel_selector == Pica::Regs::LightingFresnelSelector::Both)
|
lighting.fresnel_selector == LightingRegs::LightingFresnelSelector::Both) {
|
||||||
out += "diffuse_sum.a *= " + value + ";\n";
|
out += "diffuse_sum.a *= " + value + ";\n";
|
||||||
|
}
|
||||||
|
|
||||||
// Enabled for the specular lighting alpha component
|
// Enabled for the specular lighting alpha component
|
||||||
if (lighting.fresnel_selector == Pica::Regs::LightingFresnelSelector::SecondaryAlpha ||
|
if (lighting.fresnel_selector ==
|
||||||
lighting.fresnel_selector == Pica::Regs::LightingFresnelSelector::Both)
|
LightingRegs::LightingFresnelSelector::SecondaryAlpha ||
|
||||||
|
lighting.fresnel_selector == LightingRegs::LightingFresnelSelector::Both) {
|
||||||
out += "specular_sum.a *= " + value + ";\n";
|
out += "specular_sum.a *= " + value + ";\n";
|
||||||
}
|
}
|
||||||
|
}
|
||||||
|
|
||||||
// Compute primary fragment color (diffuse lighting) function
|
// Compute primary fragment color (diffuse lighting) function
|
||||||
out += "diffuse_sum.rgb += ((" + light_src + ".diffuse * " + dot_product + ") + " +
|
out += "diffuse_sum.rgb += ((" + light_src + ".diffuse * " + dot_product + ") + " +
|
||||||
|
|
|
@ -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 {{
|
return {{
|
||||||
color.r / 255.0f, color.g / 255.0f, color.b / 255.0f,
|
color.r / 255.0f, color.g / 255.0f, color.b / 255.0f,
|
||||||
}};
|
}};
|
||||||
|
|
Reference in New Issue