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Add GLES detection to fragment shader recompiler

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This commit is contained in:
wheremyfoodat 2024-03-03 02:43:41 +02:00
parent 4b07ebed86
commit 5ba773a393
1 changed files with 21 additions and 8 deletions
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29
src/core/PICA/shader_gen_glsl.cpp
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@ -11,6 +11,15 @@ std::string FragmentGenerator::getVertexShader(const PICARegs& regs) {
default: break;
}
if (api == API::GLES) {
ret += R"(
#define USING_GLES 1
precision mediump int;
precision mediump float;
)";
}
ret += R"(
layout(location = 0) in vec4 a_coords;
layout(location = 1) in vec4 a_quaternion;
@ -75,6 +84,14 @@ std::string FragmentGenerator::generate(const PICARegs& regs) {
}
bool unimplementedFlag = false;
if (api == API::GLES) {
ret += R"(
#define USING_GLES 1
precision mediump int;
precision mediump float;
)";
}
// Input and output attributes
ret += R"(
@ -93,17 +110,13 @@ std::string FragmentGenerator::generate(const PICARegs& regs) {
uniform sampler2D u_tex0;
uniform sampler2D u_tex1;
uniform sampler2D u_tex2;
// GLES doesn't support sampler1DArray, as such we'll have to change how we handle lighting later
#ifndef USING_GLES
uniform sampler1DArray u_tex_lighting_lut;
#endif
vec4 tevSources[16];
vec4 tevNextPreviousBuffer;
vec3 regToColor(uint reg) {
// Normalization scale to convert from [0...255] to [0.0...1.0]
const float scale = 1.0 / 255.0;
return scale * vec3(float(bitfieldExtract(reg, 20, 8)), float(bitfieldExtract(reg, 10, 8)), float(bitfieldExtract(reg, 00, 8)));
}
)";
// Emit main function for fragment shader
@ -339,4 +352,4 @@ void FragmentGenerator::getAlphaOperation(std::string& shader, TexEnvConfig::Ope
shader += "1.0";
break;
}
}
}