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Ubershader: Add lighting shadergen override

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wheremyfoodat 2024-07-20 03:40:50 +03:00
parent 69daed6ace
commit 69c79a7f6c
6 changed files with 34 additions and 2 deletions
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4
src/core/PICA/gpu.cpp
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@ -58,6 +58,10 @@ GPU::GPU(Memory& mem, EmulatorConfig& config) : mem(mem), config(config) {
break;
}
}
if (renderer != nullptr) {
renderer->setConfig(&config);
}
}
void GPU::reset() {

13
src/core/renderer_gl/renderer_gl.cpp
View file

@ -4,6 +4,7 @@
#include <cmrc/cmrc.hpp>
#include "config.hpp"
#include "PICA/float_types.hpp"
#include "PICA/pica_frag_uniforms.hpp"
#include "PICA/gpu.hpp"
@ -383,6 +384,18 @@ void RendererGL::drawVertices(PICA::PrimType primType, std::span<const Vertex> v
OpenGL::Triangle,
};
bool usingUbershader = enableUbershader;
if (usingUbershader) {
const bool lightsEnabled = (regs[InternalRegs::LightingEnable] & 1) != 0;
const uint lightCount = (regs[InternalRegs::LightNumber] & 0x7) + 1;
// Emulating lights in the ubershader is incredibly slow, so we've got an option to render draws using moret han N lights via shadergen
// This way we generate fewer shaders overall than with full shadergen, but don't tank performance
if (emulatorConfig->forceShadergenForLights && lightsEnabled && lightCount >= emulatorConfig->lightShadergenThreshold) {
usingUbershader = false;
}
}
if (usingUbershader) {
gl.useProgram(triangleProgram);
} else {