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gl_rasterizer_cache: Use AccurateCopySurface for use_accurate_gpu_emulation.
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@ -1178,6 +1178,14 @@ void RasterizerCacheOpenGL::FermiCopySurface(
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FastCopySurface(GetSurface(src_params, true), GetSurface(dst_params, false));
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}
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void RasterizerCacheOpenGL::AccurateCopySurface(const Surface& src_surface,
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const Surface& dst_surface) {
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const auto& src_params{src_surface->GetSurfaceParams()};
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const auto& dst_params{dst_surface->GetSurfaceParams()};
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FlushRegion(src_params.addr, dst_params.size_in_bytes);
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LoadSurface(dst_surface);
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}
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Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& old_surface,
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const SurfaceParams& new_params) {
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// Verify surface is compatible for blitting
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@ -1186,6 +1194,12 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& old_surface,
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// Get a new surface with the new parameters, and blit the previous surface to it
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Surface new_surface{GetUncachedSurface(new_params)};
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// With use_accurate_gpu_emulation enabled, do an accurate surface copy
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if (Settings::values.use_accurate_gpu_emulation) {
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AccurateCopySurface(old_surface, new_surface);
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return new_surface;
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}
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// For compatible surfaces, we can just do fast glCopyImageSubData based copy
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if (old_params.target == new_params.target && old_params.type == new_params.type &&
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old_params.depth == new_params.depth && old_params.depth == 1 &&
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@ -1200,8 +1214,7 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& old_surface,
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// reinterpreted. When use_accurate_gpu_emulation setting is enabled, perform a more accurate
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// surface copy, where pixels are reinterpreted as a new format (without conversion). This
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// code path uses OpenGL PBOs and is quite slow.
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const bool is_blit{old_params.pixel_format == new_params.pixel_format ||
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!Settings::values.use_accurate_gpu_emulation};
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const bool is_blit{old_params.pixel_format == new_params.pixel_format};
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switch (new_params.target) {
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case SurfaceParams::SurfaceTarget::Texture2D:
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@ -899,6 +899,9 @@ private:
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/// Tries to get a reserved surface for the specified parameters
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Surface TryGetReservedSurface(const SurfaceParams& params);
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/// Performs a slow but accurate surface copy, flushing to RAM and reinterpreting the data
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void AccurateCopySurface(const Surface& src_surface, const Surface& dst_surface);
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/// The surface reserve is a "backup" cache, this is where we put unique surfaces that have
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/// previously been used. This is to prevent surfaces from being constantly created and
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/// destroyed when used with different surface parameters.
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