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gl_rasterizer_cache: Add bounds checking for gl_buffer copies.

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This commit is contained in:
bunnei
2018-08-09 00:30:02 -04:00
parent 37e1ed3744
commit e8c52d4c89
1 changed files with 12 additions and 10 deletions
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22
src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
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@@ -184,35 +184,37 @@ MathUtil::Rectangle<u32> SurfaceParams::GetRect() const {
}
template <bool morton_to_gl, PixelFormat format>
void MortonCopy(u32 stride, u32 block_height, u32 height, u8* gl_buffer, Tegra::GPUVAddr addr) {
void MortonCopy(u32 stride, u32 block_height, u32 height, std::vector<u8>& gl_buffer,
Tegra::GPUVAddr addr) {
constexpr u32 bytes_per_pixel = SurfaceParams::GetFormatBpp(format) / CHAR_BIT;
constexpr u32 gl_bytes_per_pixel = CachedSurface::GetGLBytesPerPixel(format);
const auto& gpu = Core::System::GetInstance().GPU();
if (morton_to_gl) {
std::vector<u8> data;
if (SurfaceParams::GetFormatType(format) == SurfaceType::ColorTexture) {
auto data = Tegra::Texture::UnswizzleTexture(
data = Tegra::Texture::UnswizzleTexture(
*gpu.memory_manager->GpuToCpuAddress(addr),
SurfaceParams::TextureFormatFromPixelFormat(format), stride, height, block_height);
std::memcpy(gl_buffer, data.data(), data.size());
} else {
auto data = Tegra::Texture::UnswizzleDepthTexture(
data = Tegra::Texture::UnswizzleDepthTexture(
*gpu.memory_manager->GpuToCpuAddress(addr),
SurfaceParams::DepthFormatFromPixelFormat(format), stride, height, block_height);
std::memcpy(gl_buffer, data.data(), data.size());
}
const size_t size_to_copy{std::min(gl_buffer.size(), data.size())};
gl_buffer.assign(data.begin(), data.begin() + size_to_copy);
} else {
// TODO(bunnei): Assumes the default rendering GOB size of 16 (128 lines). We should
// check the configuration for this and perform more generic un/swizzle
LOG_WARNING(Render_OpenGL, "need to use correct swizzle/GOB parameters!");
VideoCore::MortonCopyPixels128(
stride, height, bytes_per_pixel, gl_bytes_per_pixel,
Memory::GetPointer(*gpu.memory_manager->GpuToCpuAddress(addr)), gl_buffer,
Memory::GetPointer(*gpu.memory_manager->GpuToCpuAddress(addr)), gl_buffer.data(),
morton_to_gl);
}
}
static constexpr std::array<void (*)(u32, u32, u32, u8*, Tegra::GPUVAddr),
static constexpr std::array<void (*)(u32, u32, u32, std::vector<u8>&, Tegra::GPUVAddr),
SurfaceParams::MaxPixelFormat>
morton_to_gl_fns = {
MortonCopy<true, PixelFormat::ABGR8>, MortonCopy<true, PixelFormat::B5G6R5>,
@@ -235,7 +237,7 @@ static constexpr std::array<void (*)(u32, u32, u32, u8*, Tegra::GPUVAddr),
MortonCopy<true, PixelFormat::Z32FS8>,
};
static constexpr std::array<void (*)(u32, u32, u32, u8*, Tegra::GPUVAddr),
static constexpr std::array<void (*)(u32, u32, u32, std::vector<u8>&, Tegra::GPUVAddr),
SurfaceParams::MaxPixelFormat>
gl_to_morton_fns = {
MortonCopy<false, PixelFormat::ABGR8>,
@@ -467,7 +469,7 @@ void CachedSurface::LoadGLBuffer() {
gl_buffer.resize(copy_size);
morton_to_gl_fns[static_cast<size_t>(params.pixel_format)](
params.width, params.block_height, params.height, gl_buffer.data(), params.addr);
params.width, params.block_height, params.height, gl_buffer, params.addr);
} else {
const u8* const texture_src_data_end = texture_src_data + copy_size;
@@ -494,7 +496,7 @@ void CachedSurface::FlushGLBuffer() {
std::memcpy(dst_buffer, gl_buffer.data(), params.size_in_bytes);
} else {
gl_to_morton_fns[static_cast<size_t>(params.pixel_format)](
params.width, params.block_height, params.height, gl_buffer.data(), params.addr);
params.width, params.block_height, params.height, gl_buffer, params.addr);
}
}