From fbb3cd110c598003bf58a2aca5be489b5f3fb772 Mon Sep 17 00:00:00 2001 From: bunnei Date: Tue, 24 Apr 2018 00:46:51 -0400 Subject: gl_rasterizer_cache: Add a function for finding framebuffer GPU address. --- .../renderer_opengl/gl_rasterizer_cache.cpp | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'src/video_core/renderer_opengl/gl_rasterizer_cache.cpp') diff --git a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp index e1ad00feb..b924f1b8e 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp @@ -954,6 +954,33 @@ Surface RasterizerCacheOpenGL::GetSurface(const SurfaceParams& params, ScaleMatc return surface; } +boost::optional RasterizerCacheOpenGL::TryFindFramebufferGpuAddress( + VAddr cpu_addr) const { + // Tries to find the GPU address of a framebuffer based on the CPU address. This is because + // final output framebuffers are specified by CPU address, but internally our GPU cache uses GPU + // addresses. We iterate through all cached framebuffers, and compare their starting CPU address + // to the one provided. This is obviously not great, and won't work if the framebuffer overlaps + // surfaces. + + std::vector gpu_addresses; + for (const auto& pair : surface_cache) { + for (const auto& surface : pair.second) { + const VAddr surface_cpu_addr = surface->GetCpuAddr(); + if (cpu_addr >= surface_cpu_addr && cpu_addr < (surface_cpu_addr + surface->size)) { + ASSERT_MSG(cpu_addr == surface_cpu_addr, "overlapping surfaces are unsupported"); + gpu_addresses.push_back(surface->addr); + } + } + } + + if (gpu_addresses.empty()) { + return {}; + } + + ASSERT_MSG(gpu_addresses.size() == 1, ">1 surface is unsupported"); + return gpu_addresses[0]; +} + SurfaceRect_Tuple RasterizerCacheOpenGL::GetSurfaceSubRect(const SurfaceParams& params, ScaleMatch match_res_scale, bool load_if_create) { -- cgit v1.2.3