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SwBlitter: Fix Pitch linear reading/writting

This commit is contained in:
Fernando Sahmkow 2024-01-31 22:57:53 +01:00
parent 7cc7d027f7
commit 5cb9fe7819
1 changed files with 19 additions and 18 deletions
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31
src/video_core/engines/sw_blitter/blitter.cpp
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@ -111,6 +111,20 @@ void Bilinear(std::span<const f32> input, std::span<f32> output, size_t src_widt
}
}
template <bool unpack>
void ProcessPitchLinear(std::span<const u8> input, std::span<u8> output, size_t extent_x,
size_t extent_y, u32 pitch, u32 x0, u32 y0, size_t bpp) {
const size_t base_offset = x0 * bpp;
const size_t copy_size = extent_x * bpp;
for (size_t y = 0; y < extent_y; y++) {
const size_t first_offset = (y + y0) * pitch + base_offset;
const size_t second_offset = y * extent_x * bpp;
u8* write_to = unpack ? &output[first_offset] : &output[second_offset];
const u8* read_from = unpack ? &input[second_offset] : &input[first_offset];
std::memcpy(write_to, read_from, copy_size);
}
}
} // namespace
struct SoftwareBlitEngine::BlitEngineImpl {
@ -138,19 +152,6 @@ bool SoftwareBlitEngine::Blit(Fermi2D::Surface& src, Fermi2D::Surface& dst,
}
return static_cast<size_t>(surface.pitch * surface.height);
};
const auto process_pitch_linear = [](bool unpack, std::span<const u8> input,
std::span<u8> output, u32 extent_x, u32 extent_y,
u32 pitch, u32 x0, u32 y0, size_t bpp) {
const size_t base_offset = x0 * bpp;
const size_t copy_size = extent_x * bpp;
for (u32 y = y0; y < extent_y; y++) {
const size_t first_offset = y * pitch + base_offset;
const size_t second_offset = y * extent_x * bpp;
u8* write_to = unpack ? &output[first_offset] : &output[second_offset];
const u8* read_from = unpack ? &input[second_offset] : &input[first_offset];
std::memcpy(write_to, read_from, copy_size);
}
};
const u32 src_extent_x = config.src_x1 - config.src_x0;
const u32 src_extent_y = config.src_y1 - config.src_y0;
@ -205,7 +206,7 @@ bool SoftwareBlitEngine::Blit(Fermi2D::Surface& src, Fermi2D::Surface& dst,
src.depth, config.src_x0, config.src_y0, src_extent_x, src_extent_y,
src.block_height, src.block_depth, src_extent_x * src_bytes_per_pixel);
} else {
process_pitch_linear(false, tmp_buffer, impl->src_buffer, src_extent_x, src_extent_y,
ProcessPitchLinear<false>(tmp_buffer, impl->src_buffer, src_extent_x, src_extent_y,
src.pitch, config.src_x0, config.src_y0, src_bytes_per_pixel);
}
@ -229,7 +230,7 @@ bool SoftwareBlitEngine::Blit(Fermi2D::Surface& src, Fermi2D::Surface& dst,
dst.depth, config.dst_x0, config.dst_y0, dst_extent_x, dst_extent_y,
dst.block_height, dst.block_depth, dst_extent_x * dst_bytes_per_pixel);
} else {
process_pitch_linear(true, impl->dst_buffer, tmp_buffer2, dst_extent_x, dst_extent_y,
ProcessPitchLinear<true>(impl->dst_buffer, tmp_buffer2, dst_extent_x, dst_extent_y,
dst.pitch, config.dst_x0, config.dst_y0,
static_cast<size_t>(dst_bytes_per_pixel));
}