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GPU: Handle oversized transfers (wrap around behavior)

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This commit is contained in:
Connor McLaughlin
2019-11-14 20:31:48 +10:00
parent 9ea7a8418c
commit 9d66638bce
6 changed files with 49 additions and 26 deletions
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10
src/core/gpu_hw_d3d11.cpp
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@ -638,6 +638,16 @@ void GPU_HW_D3D11::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void* d
{
GPU_HW::UpdateVRAM(x, y, width, height, data);
if ((x + width) > VRAM_WIDTH || (y + height) > VRAM_HEIGHT)
{
// CPU round trip if oversized for now.
Log_WarningPrintf("Oversized VRAM update (%u-%u, %u-%u), CPU round trip", x, x + width, y, y + height);
GPU::UpdateVRAM(x, y, width, height, data);
ReadVRAM(0, 0, VRAM_WIDTH, VRAM_HEIGHT);
UpdateVRAM(0, 0, VRAM_WIDTH, VRAM_HEIGHT, m_vram_shadow.data());
return;
}
const u32 num_pixels = width * height;
const auto map_result = m_texture_stream_buffer.Map(m_context.Get(), sizeof(u16), num_pixels * sizeof(u16));
std::memcpy(map_result.pointer, data, num_pixels * sizeof(u16));