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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/assert.h"
#include "common/logging/log.h"
#include "video_core/engines/fermi_2d.h"
#include "video_core/memory_manager.h"
#include "video_core/rasterizer_interface.h"
namespace Tegra::Engines {
Fermi2D::Fermi2D(VideoCore::RasterizerInterface& rasterizer) : rasterizer{rasterizer} {}
void Fermi2D::CallMethod(const GPU::MethodCall& method_call) {
ASSERT_MSG(method_call.method < Regs::NUM_REGS,
"Invalid Fermi2D register, increase the size of the Regs structure");
regs.reg_array[method_call.method] = method_call.argument;
switch (method_call.method) {
// Trigger the surface copy on the last register write. This is blit_src_y, but this is 64-bit,
// so trigger on the second 32-bit write.
case FERMI2D_REG_INDEX(blit_src_y) + 1: {
HandleSurfaceCopy();
break;
}
}
}
void Fermi2D::HandleSurfaceCopy() {
LOG_DEBUG(HW_GPU, "Requested a surface copy with operation {}",
static_cast<u32>(regs.operation));
// TODO(Subv): Only raw copies are implemented.
ASSERT(regs.operation == Operation::SrcCopy);
const u32 src_blit_x1{static_cast<u32>(regs.blit_src_x >> 32)};
const u32 src_blit_y1{static_cast<u32>(regs.blit_src_y >> 32)};
u32 src_blit_x2, src_blit_y2;
if (regs.blit_control.origin == Origin::Corner) {
src_blit_x2 =
static_cast<u32>((regs.blit_src_x + (regs.blit_du_dx * regs.blit_dst_width)) >> 32);
src_blit_y2 =
static_cast<u32>((regs.blit_src_y + (regs.blit_dv_dy * regs.blit_dst_height)) >> 32);
} else {
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 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;
copy_config.src_rect = src_rect;
copy_config.dst_rect = dst_rect;
if (!rasterizer.AccelerateSurfaceCopy(regs.src, regs.dst, copy_config)) {
UNIMPLEMENTED();
}
}
} // namespace Tegra::Engines
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