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Fermi2D: limit blit area to only available area

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Normaly OpenGL does not care if the areas exceed the texture regions but
other backends such as Vulkan do care about the limits of this areas.
This PR crops the areas of the blit in order that they don't surpass the
limits of the textures. This should help Vulkan and faulty OpenGL
drivers
This commit is contained in:
Fernando Sahmkow 2019-09-27 16:10:45 -04:00 committed by FernandoS27
parent 60c602e4e7
commit 57a46c69f1
1 changed files with 14 additions and 4 deletions
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18
src/video_core/engines/fermi_2d.cpp
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@ -47,10 +47,20 @@ void Fermi2D::HandleSurfaceCopy() {
src_blit_x2 = static_cast<u32>((regs.blit_src_x >> 32) + regs.blit_dst_width);
src_blit_y2 = static_cast<u32>((regs.blit_src_y >> 32) + regs.blit_dst_height);
}
const Common::Rectangle<u32> src_rect{src_blit_x1, src_blit_y1, src_blit_x2, src_blit_y2};
const Common::Rectangle<u32> dst_rect{regs.blit_dst_x, regs.blit_dst_y,
regs.blit_dst_x + regs.blit_dst_width,
regs.blit_dst_y + regs.blit_dst_height};
const u32 dst_blit_x2 = regs.blit_dst_x + regs.blit_dst_width;
const u32 dst_blit_y2 = regs.blit_dst_x + regs.blit_dst_height;
const u32 excess_src_x2 = std::max<s32>(0, dst_blit_x2 - regs.dst.width);
const u32 excess_src_y2 = std::max<s32>(0, dst_blit_y2 - regs.dst.height);
const u32 excess_dst_x2 = std::max<s32>(0, src_blit_x2 - regs.src.width);
const u32 excess_dst_y2 = std::max<s32>(0, src_blit_y2 - regs.src.height);
const Common::Rectangle<u32> src_rect{
src_blit_x1, src_blit_y1, std::min<u32>(regs.src.width, src_blit_x2) - excess_src_x2,
std::min<u32>(regs.src.height, src_blit_y2) - excess_src_y2};
const Common::Rectangle<u32> dst_rect{
regs.blit_dst_x, regs.blit_dst_y,
std::min<u32>(regs.dst.width, dst_blit_x2) - excess_dst_x2,
std::min<u32>(regs.dst.height, dst_blit_y2) - excess_dst_y2};
Config copy_config;
copy_config.operation = regs.operation;
copy_config.filter = regs.blit_control.filter;