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Simplify lighting in build_uniform

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This commit is contained in:
Luke Street 2025-04-15 09:19:04 -06:00
parent 3bba70d1ff
commit 6c27585cf9
3 changed files with 9 additions and 22 deletions
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23
lib/gfx/gx.cpp
View File

@ -180,8 +180,8 @@ static inline wgpu::PrimitiveState to_primitive_state(GXPrimitive gx_prim, GXCul
}
return {
.topology = primitive,
.stripIndexFormat = gx_prim == GX_TRIANGLESTRIP || gx_prim == GX_LINESTRIP ? wgpu::IndexFormat::Uint16
: wgpu::IndexFormat::Undefined,
.stripIndexFormat = primitive == wgpu::PrimitiveTopology::TriangleStrip ? wgpu::IndexFormat::Uint16
: wgpu::IndexFormat::Undefined,
.frontFace = wgpu::FrontFace::CW,
.cullMode = cullMode,
};
@ -328,19 +328,7 @@ Range build_uniform(const ShaderInfo& info) noexcept {
}
buf.append(g_gxState.colorRegs[i]);
}
bool lightingEnabled = false;
for (int i = 0; i < info.sampledColorChannels.size(); ++i) {
if (!info.sampledColorChannels.test(i)) {
continue;
}
const auto& ccc = g_gxState.colorChannelConfig[i * 2];
const auto& ccca = g_gxState.colorChannelConfig[i * 2 + 1];
if (ccc.lightingEnabled || ccca.lightingEnabled) {
lightingEnabled = true;
break;
}
}
if (lightingEnabled) {
if (info.lightingEnabled) {
// Lights
static_assert(sizeof(g_gxState.lights) == 80 * GX::MaxLights);
buf.append(g_gxState.lights);
@ -380,12 +368,11 @@ Range build_uniform(const ShaderInfo& info) noexcept {
if (!info.usesTexMtx.test(i)) {
continue;
}
const auto& state = g_gxState;
switch (info.texMtxTypes[i]) {
DEFAULT_FATAL("unhandled tex mtx type {}", underlying(info.texMtxTypes[i]));
case GX_TG_MTX2x4:
if (std::holds_alternative<Mat2x4<float>>(state.texMtxs[i])) {
buf.append(std::get<Mat2x4<float>>(state.texMtxs[i]));
if (std::holds_alternative<Mat2x4<float>>(g_gxState.texMtxs[i])) {
buf.append(std::get<Mat2x4<float>>(g_gxState.texMtxs[i]));
} else
UNLIKELY FATAL("expected 2x4 mtx in idx {}", i);
break;

1
lib/gfx/gx.hpp
View File

@ -420,6 +420,7 @@ struct ShaderInfo {
std::array<GXTexGenType, MaxTexMtx> texMtxTypes{};
u32 uniformSize = 0;
bool usesFog : 1 = false;
bool lightingEnabled : 1 = false;
};
struct BindGroupRanges {
std::array<Range, GX_VA_MAX_ATTR> vaRanges{};

7
lib/gfx/gx_shader.cpp
View File

@ -581,19 +581,18 @@ ShaderInfo build_shader_info(const ShaderConfig& config) noexcept {
}
}
info.uniformSize += info.loadsTevReg.count() * sizeof(Vec4<float>);
bool lightingEnabled = false;
for (int i = 0; i < info.sampledColorChannels.size(); ++i) {
if (info.sampledColorChannels.test(i)) {
const auto& cc = config.colorChannels[i * 2];
const auto& cca = config.colorChannels[i * 2 + 1];
if (cc.lightingEnabled || cca.lightingEnabled) {
lightingEnabled = true;
info.lightingEnabled = true;
}
}
}
if (lightingEnabled) {
if (info.lightingEnabled) {
// Lights + light state for all channels
info.uniformSize += sizeof(Vec4<float>) + sizeof(Light) * GX::MaxLights;
info.uniformSize += 16 + sizeof(Light) * GX::MaxLights;
}
for (int i = 0; i < info.sampledColorChannels.size(); ++i) {
if (info.sampledColorChannels.test(i)) {