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[GPU] Surface cache vol 1

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wheremyfoodat 2023-01-02 15:01:17 +02:00
parent 57ef4e25e7
commit ecbb33b906
7 changed files with 276 additions and 0 deletions
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30
src/core/renderer_gl/renderer_gl.cpp
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@ -105,6 +105,18 @@ const char* displayFragmentShader = R"(
}
)";
void Renderer::reset() {
depthBufferCache.reset();
colourBufferCache.reset();
// Init the colour/depth buffer settings to some random defaults on reset
colourBufferLoc = 0;
colourBufferFormat = ColourBuffer::Formats::RGBA8;
depthBufferLoc = 0;
depthBufferFormat = DepthBuffer::Formats::Depth16;
}
void Renderer::initGraphicsContext() {
// Set up texture for top screen
fboTexture.create(400, 240, GL_RGBA8);
@ -156,6 +168,7 @@ void Renderer::initGraphicsContext() {
dummyVBO.create();
dummyVAO.create();
reset();
}
void Renderer::getGraphicsContext() {
@ -168,6 +181,8 @@ void Renderer::getGraphicsContext() {
triangleProgram.use();
}
OpenGL::Framebuffer poop;
void Renderer::drawVertices(OpenGL::Primitives primType, Vertex* vertices, u32 count) {
// Adjust alpha test if necessary
const u32 alphaControl = regs[PICAInternalRegs::AlphaTestConfig];
@ -176,6 +191,8 @@ void Renderer::drawVertices(OpenGL::Primitives primType, Vertex* vertices, u32 c
glUniform1ui(alphaControlLoc, alphaControl);
}
poop = getColourFBO();
const u32 depthControl = regs[PICAInternalRegs::DepthAndColorMask];
bool depthEnable = depthControl & 1;
bool depthWriteEnable = (depthControl >> 12) & 1;
@ -252,4 +269,17 @@ void Renderer::clearBuffer(u32 startAddress, u32 endAddress, u32 value, u32 cont
OpenGL::setClearColor(r, g, b, a);
OpenGL::clearColor();
}
OpenGL::Framebuffer Renderer::getColourFBO() {
//We construct a colour buffer object and see if our cache has any matching colour buffers in it
// If not, we allocate a texture & FBO for our framebuffer and store it in the cache
ColourBuffer sampleBuffer(colourBufferLoc, colourBufferFormat, fbSize.x(), fbSize.y());
auto buffer = colourBufferCache.find(sampleBuffer);
if (buffer.has_value()) {
return buffer.value().get().fbo;
} else {
return colourBufferCache.add(sampleBuffer).fbo;
}
}