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vk_blit_screen: Fix non-accelerated texture size calculation

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Addresses the potential OOB access in UnswizzleTexture.
This commit is contained in:
ameerj 2021-08-16 14:28:10 -04:00
parent 2824d742e4
commit 899cf73819
2 changed files with 3 additions and 9 deletions
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4
src/video_core/renderer_vulkan/vk_blit_screen.cpp
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@ -159,11 +159,13 @@ VkSemaphore VKBlitScreen::Draw(const Tegra::FramebufferConfig& framebuffer,
const VAddr framebuffer_addr = framebuffer.address + framebuffer.offset;
const u8* const host_ptr = cpu_memory.GetPointer(framebuffer_addr);
const size_t size_bytes = GetSizeInBytes(framebuffer);
// TODO(Rodrigo): Read this from HLE
constexpr u32 block_height_log2 = 4;
const u32 bytes_per_pixel = GetBytesPerPixel(framebuffer);
const u64 size_bytes{Tegra::Texture::CalculateSize(true, bytes_per_pixel,
framebuffer.stride, framebuffer.height,
1, block_height_log2, 0)};
Tegra::Texture::UnswizzleTexture(
mapped_span.subspan(image_offset, size_bytes), std::span(host_ptr, size_bytes),
bytes_per_pixel, framebuffer.width, framebuffer.height, 1, block_height_log2, 0);