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Out of bound blit (#6531)

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* Fix out of bound blit error

* Fix code read

* Fix ci error

Co-authored-by: Feng Chen <chen.feng@gloritysolutions.com>
This commit is contained in:
Feng Chen
2021-07-09 02:06:09 +08:00
committed by GitHub
parent 92a3daf029
commit c7ad195fd3
2 changed files with 36 additions and 59 deletions
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22
src/video_core/engines/fermi_2d.cpp
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@ -7,6 +7,10 @@
#include "video_core/engines/fermi_2d.h"
#include "video_core/memory_manager.h"
#include "video_core/rasterizer_interface.h"
#include "video_core/surface.h"
using VideoCore::Surface::BytesPerBlock;
using VideoCore::Surface::PixelFormatFromRenderTargetFormat;
namespace Tegra::Engines {
@ -49,7 +53,7 @@ void Fermi2D::Blit() {
UNIMPLEMENTED_IF_MSG(regs.clip_enable != 0, "Clipped blit enabled");
const auto& args = regs.pixels_from_memory;
const Config config{
Config config{
.operation = regs.operation,
.filter = args.sample_mode.filter,
.dst_x0 = args.dst_x0,
@ -61,7 +65,21 @@ void Fermi2D::Blit() {
.src_x1 = static_cast<s32>((args.du_dx * args.dst_width + args.src_x0) >> 32),
.src_y1 = static_cast<s32>((args.dv_dy * args.dst_height + args.src_y0) >> 32),
};
if (!rasterizer->AccelerateSurfaceCopy(regs.src, regs.dst, config)) {
Surface src = regs.src;
const auto bytes_per_pixel = BytesPerBlock(PixelFormatFromRenderTargetFormat(src.format));
const auto need_align_to_pitch =
src.linear == Tegra::Engines::Fermi2D::MemoryLayout::Pitch &&
static_cast<s32>(src.width) == config.src_x1 &&
config.src_x1 > static_cast<s32>(src.pitch / bytes_per_pixel) && config.src_x0 > 0;
if (need_align_to_pitch) {
auto address = src.Address() + config.src_x0 * bytes_per_pixel;
src.addr_upper = static_cast<u32>(address >> 32);
src.addr_lower = static_cast<u32>(address);
src.width -= config.src_x0;
config.src_x1 -= config.src_x0;
config.src_x0 = 0;
}
if (!rasterizer->AccelerateSurfaceCopy(src, regs.dst, config)) {
UNIMPLEMENTED();
}
}