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gpu: Add display transfer rectangles

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This commit is contained in:
GPUCode 2023-08-03 16:35:18 +03:00
parent f75a23b5a9
commit c805504f70
5 changed files with 109 additions and 88 deletions
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21
src/core/renderer_gl/renderer_gl.cpp
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@ -536,7 +536,7 @@ void RendererGL::clearBuffer(u32 startAddress, u32 endAddress, u32 value, u32 co
OpenGL::Framebuffer RendererGL::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
// If not, we allocate a texture & FBO for our framebuffer and store it in the cache
ColourBuffer sampleBuffer(colourBufferLoc, colourBufferFormat, fbSize[0], fbSize[1]);
auto buffer = colourBufferCache.find(sampleBuffer);
@ -598,25 +598,34 @@ void RendererGL::displayTransfer(u32 inputAddr, u32 outputAddr, u32 inputSize, u
const PICA::Scaling scaling = static_cast<PICA::Scaling>(Helpers::getBits<24, 2>(flags));
u32 outputWidth = outputSize & 0xffff;
u32 outputHeight = outputSize >> 16;
if (inputWidth != outputWidth) {
Helpers::warn("Strided display transfer is not handled correctly!\n");
}
auto srcFramebuffer = getColourBuffer(inputAddr, inputFormat, inputWidth, inputHeight);
Math::Rect srcRect = srcFramebuffer.getSubRect(inputAddr, outputWidth, outputHeight);
// Apply scaling for the destination rectangle.
if (scaling == PICA::Scaling::X || scaling == PICA::Scaling::XY) {
outputWidth >>= 1;
}
u32 outputHeight = outputSize >> 16;
if (scaling == PICA::Scaling::XY) {
outputHeight >>= 1;
}
// If there's a framebuffer at this address, use it. Otherwise go back to our old hack and display framebuffer 0
// Displays are hard I really don't want to try implementing them because getting a fast solution is terrible
auto srcFramebuffer = getColourBuffer(inputAddr, inputFormat, inputWidth, inputHeight);
auto dstFramebuffer = getColourBuffer(outputAddr, outputFormat, outputWidth, outputHeight);
Math::Rect dstRect = dstFramebuffer.getSubRect(outputAddr, outputWidth, outputHeight);
Helpers::warn("Display transfer with outputAddr %08X\n", outputAddr);
// Blit the framebuffers
srcFramebuffer.fbo.bind(OpenGL::ReadFramebuffer);
dstFramebuffer.fbo.bind(OpenGL::DrawFramebuffer);
glBlitFramebuffer(0, 0, inputWidth, inputHeight, 0, 0, outputWidth, outputHeight, GL_COLOR_BUFFER_BIT, GL_LINEAR);
glBlitFramebuffer(srcRect.start.x(), srcRect.start.y(), srcRect.end.x(), srcRect.end.y(),
dstRect.start.x(), dstRect.start.y(), dstRect.end.x(), dstRect.end.y(),
GL_COLOR_BUFFER_BIT, GL_LINEAR);
}
ColourBuffer RendererGL::getColourBuffer(u32 addr, PICA::ColorFmt format, u32 width, u32 height) {