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Support GLES on desktop

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This commit is contained in:
wheremyfoodat 2024-12-28 19:52:03 +02:00
parent 80ccede765
commit cb8b13e129
15 changed files with 125 additions and 59 deletions
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42
src/core/renderer_gl/renderer_gl.cpp
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@ -56,10 +56,6 @@ void RendererGL::reset() {
void RendererGL::initGraphicsContextInternal() {
gl.reset();
#if defined(USING_GLES) || defined(__ANDROID__)
driverInfo.usingGLES = true;
#endif
auto gl_resources = cmrc::RendererGL::get_filesystem();
auto vertexShaderSource = gl_resources.open("opengl_vertex_shader.vert");
auto fragmentShaderSource = gl_resources.open("opengl_fragment_shader.frag");
@ -69,16 +65,7 @@ void RendererGL::initGraphicsContextInternal() {
triangleProgram.create({vert, frag});
initUbershader(triangleProgram);
auto displayVertexShaderSource = gl_resources.open("opengl_display.vert");
auto displayFragmentShaderSource = gl_resources.open("opengl_display.frag");
OpenGL::Shader vertDisplay({displayVertexShaderSource.begin(), displayVertexShaderSource.size()}, OpenGL::Vertex);
OpenGL::Shader fragDisplay({displayFragmentShaderSource.begin(), displayFragmentShaderSource.size()}, OpenGL::Fragment);
displayProgram.create({vertDisplay, fragDisplay});
gl.useProgram(displayProgram);
glUniform1i(OpenGL::uniformLocation(displayProgram, "u_texture"), 0); // Init sampler object
compileDisplayShader();
// Create stream buffers for vertex, index and uniform buffers
static constexpr usize hwIndexBufferSize = 2_MB;
static constexpr usize hwVertexBufferSize = 16_MB;
@ -1156,6 +1143,19 @@ void RendererGL::initUbershader(OpenGL::Program& program) {
glUniform1i(OpenGL::uniformLocation(program, "u_tex_luts"), 3);
}
void RendererGL::compileDisplayShader() {
auto gl_resources = cmrc::RendererGL::get_filesystem();
auto displayVertexShaderSource = driverInfo.usingGLES ? gl_resources.open("opengl_es_display.vert") : gl_resources.open("opengl_display.vert");
auto displayFragmentShaderSource = driverInfo.usingGLES ? gl_resources.open("opengl_es_display.frag") : gl_resources.open("opengl_display.frag");
OpenGL::Shader vertDisplay({displayVertexShaderSource.begin(), displayVertexShaderSource.size()}, OpenGL::Vertex);
OpenGL::Shader fragDisplay({displayFragmentShaderSource.begin(), displayFragmentShaderSource.size()}, OpenGL::Fragment);
displayProgram.create({vertDisplay, fragDisplay});
gl.useProgram(displayProgram);
glUniform1i(OpenGL::uniformLocation(displayProgram, "u_texture"), 0); // Init sampler object
}
void RendererGL::accelerateVertexUpload(ShaderUnit& shaderUnit, PICA::DrawAcceleration* accel) {
u32 buffer = 0; // Vertex buffer index for non-fixed attributes
u32 attrCount = 0;
@ -1250,4 +1250,18 @@ void RendererGL::accelerateVertexUpload(ShaderUnit& shaderUnit, PICA::DrawAccele
);
}
}
}
void RendererGL::setupGLES() {
driverInfo.usingGLES = true;
// OpenGL ES hardware is typically way too slow to use the ubershader (eg RPi, mobile phones, handhelds) or has other issues with it.
// So, display a warning and turn them off on OpenGL ES.
if (emulatorConfig->useUbershaders) {
emulatorConfig->useUbershaders = false;
Helpers::warn("Ubershaders enabled on OpenGL ES. This usually results in a worse experience, turning it off...");
}
// Stub out logic operations so that calling them doesn't crash the emulator
glLogicOp = [](GLenum) {};
}