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gl_rasterizer_cache: Add a function for finding framebuffer GPU address.
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@ -560,6 +560,7 @@ bool RasterizerOpenGL::AccelerateDisplay(const Tegra::FramebufferConfig& framebu
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SurfaceParams src_params;
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src_params.cpu_addr = framebuffer_addr;
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src_params.addr = res_cache.TryFindFramebufferGpuAddress(framebuffer_addr).get_value_or(0);
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src_params.width = std::min(framebuffer.width, pixel_stride);
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src_params.height = framebuffer.height;
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src_params.stride = pixel_stride;
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@ -954,6 +954,33 @@ Surface RasterizerCacheOpenGL::GetSurface(const SurfaceParams& params, ScaleMatc
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return surface;
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}
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boost::optional<Tegra::GPUVAddr> RasterizerCacheOpenGL::TryFindFramebufferGpuAddress(
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VAddr cpu_addr) const {
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// Tries to find the GPU address of a framebuffer based on the CPU address. This is because
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// final output framebuffers are specified by CPU address, but internally our GPU cache uses GPU
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// addresses. We iterate through all cached framebuffers, and compare their starting CPU address
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// to the one provided. This is obviously not great, and won't work if the framebuffer overlaps
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// surfaces.
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std::vector<Tegra::GPUVAddr> gpu_addresses;
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for (const auto& pair : surface_cache) {
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for (const auto& surface : pair.second) {
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const VAddr surface_cpu_addr = surface->GetCpuAddr();
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if (cpu_addr >= surface_cpu_addr && cpu_addr < (surface_cpu_addr + surface->size)) {
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ASSERT_MSG(cpu_addr == surface_cpu_addr, "overlapping surfaces are unsupported");
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gpu_addresses.push_back(surface->addr);
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}
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}
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}
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if (gpu_addresses.empty()) {
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return {};
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}
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ASSERT_MSG(gpu_addresses.size() == 1, ">1 surface is unsupported");
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return gpu_addresses[0];
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}
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SurfaceRect_Tuple RasterizerCacheOpenGL::GetSurfaceSubRect(const SurfaceParams& params,
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ScaleMatch match_res_scale,
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bool load_if_create) {
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@ -411,6 +411,9 @@ public:
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Surface GetSurface(const SurfaceParams& params, ScaleMatch match_res_scale,
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bool load_if_create);
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/// Tries to find a framebuffer GPU address based on the provided CPU address
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boost::optional<Tegra::GPUVAddr> TryFindFramebufferGpuAddress(VAddr cpu_addr) const;
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/// Attempt to find a subrect (resolution scaled) of a surface, otherwise loads a texture from
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/// Switch memory to OpenGL and caches it (if not already cached)
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SurfaceRect_Tuple GetSurfaceSubRect(const SurfaceParams& params, ScaleMatch match_res_scale,
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