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TexCache: Support offset in rendered CLUTs.

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We already copy to a temp, so just use that copy to normalize out the
offset.  Should even get RECT2LIN correct, but most cases are 1 pixel high
anyway.
This commit is contained in:
Unknown W. Brackets 2022-11-27 21:15:15 -08:00
parent 0b375bb357
commit 194c4b0286
1 changed files with 13 additions and 3 deletions
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16
GPU/Common/TextureCacheCommon.cpp
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@ -1250,6 +1250,10 @@ void TextureCacheCommon::LoadClut(u32 clutAddr, u32 loadBytes) {
VirtualFramebuffer *chosenFramebuffer = nullptr;
for (VirtualFramebuffer *framebuffer : framebuffers) {
// Let's not deal with divide by zero.
if (framebuffer->fb_stride == 0)
continue;
const u32 fb_address = framebuffer->fb_address;
const u32 fb_bpp = BufferFormatBytesPerPixel(framebuffer->fb_format);
int offset = clutLoadAddr - fb_address;
@ -1302,12 +1306,18 @@ void TextureCacheCommon::LoadClut(u32 clutAddr, u32 loadBytes) {
dynamicClutTemp_ = draw_->CreateFramebuffer(desc);
}
// We'll need to copy from the offset.
const u32 fb_bpp = BufferFormatBytesPerPixel(chosenFramebuffer->fb_format);
const int totalPixelsOffset = clutRenderOffset_ / fb_bpp;
const int clutYOffset = totalPixelsOffset / chosenFramebuffer->fb_stride;
const int clutXOffset = totalPixelsOffset % chosenFramebuffer->fb_stride;
const int scale = chosenFramebuffer->renderScaleFactor;
// Copy the pixels to our temp clut, scaling down if needed and wrapping.
// TODO: Take the clutRenderOffset_ into account here.
framebufferManager_->BlitUsingRaster(
chosenFramebuffer->fbo, 0.0f, 0.0f, 512.0f * chosenFramebuffer->renderScaleFactor, 1.0f,
chosenFramebuffer->fbo, clutXOffset * scale, clutYOffset * scale, (clutXOffset + 512.0f) * scale, (clutYOffset + 1.0f) * scale,
dynamicClutTemp_, 0.0f, 0.0f, 512.0f, 1.0f,
false, chosenFramebuffer->renderScaleFactor, framebufferManager_->Get2DPipeline(DRAW2D_COPY_COLOR_RECT2LIN), "copy_clut_to_temp");
false, scale, framebufferManager_->Get2DPipeline(DRAW2D_COPY_COLOR_RECT2LIN), "copy_clut_to_temp");
framebufferManager_->RebindFramebuffer("after_copy_clut_to_temp");
clutRenderFormat_ = chosenFramebuffer->fb_format;