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OpenGL: Fix DisplayTransfer accel when input width != output width 

Fixes #2246, #2261
This commit is contained in:
Yuri Kunde Schlesner 2016-12-04 05:15:33 -08:00
parent 4f0f88bc6a
commit ba7f213655
1 changed files with 10 additions and 1 deletions
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11
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@ -715,7 +715,11 @@ bool RasterizerOpenGL::AccelerateDisplayTransfer(const GPU::Regs::DisplayTransfe
CachedSurface src_params;
src_params.addr = config.GetPhysicalInputAddress();
src_params.width = config.output_width;
// It's important to use the correct source input width to properly skip over parts of the input
// image which will be cropped from the output but still affect the stride of the input image.
src_params.width = config.input_width;
// Using the output's height is fine because we don't read or skip over the remaining part of
// the image, and it allows for smaller texture cache lookup rectangles.
src_params.height = config.output_height;
src_params.is_tiled = !config.input_linear;
src_params.pixel_format = CachedSurface::PixelFormatFromGPUPixelFormat(config.input_format);
@ -736,6 +740,11 @@ bool RasterizerOpenGL::AccelerateDisplayTransfer(const GPU::Regs::DisplayTransfe
return false;
}
// Adjust the source rectangle to take into account parts of the input lines being cropped
if (config.input_width > config.output_width) {
src_rect.right -= (config.input_width - config.output_width) * src_surface->res_scale_width;
}
// Require destination surface to have same resolution scale as source to preserve scaling
dst_params.res_scale_width = src_surface->res_scale_width;
dst_params.res_scale_height = src_surface->res_scale_height;