forked from suyu/suyu
9046f764bf
Rather than have a transparent dependency, we can make it explicit in the interface. This also gets rid of the need to put the core include in a header.
65 lines
No EOL
2.3 KiB
C++
65 lines
No EOL
2.3 KiB
C++
// Copyright 2018 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <algorithm>
|
|
#include <array>
|
|
#include "common/assert.h"
|
|
#include "common/common_types.h"
|
|
#include "core/core.h"
|
|
#include "core/memory.h"
|
|
#include "video_core/renderer_opengl/gl_buffer_cache.h"
|
|
#include "video_core/renderer_opengl/gl_primitive_assembler.h"
|
|
|
|
namespace OpenGL {
|
|
|
|
constexpr u32 TRIANGLES_PER_QUAD = 6;
|
|
constexpr std::array<u32, TRIANGLES_PER_QUAD> QUAD_MAP = {0, 1, 2, 0, 2, 3};
|
|
|
|
PrimitiveAssembler::PrimitiveAssembler(OGLBufferCache& buffer_cache) : buffer_cache(buffer_cache) {}
|
|
|
|
PrimitiveAssembler::~PrimitiveAssembler() = default;
|
|
|
|
std::size_t PrimitiveAssembler::CalculateQuadSize(u32 count) const {
|
|
ASSERT_MSG(count % 4 == 0, "Quad count is expected to be a multiple of 4");
|
|
return (count / 4) * TRIANGLES_PER_QUAD * sizeof(GLuint);
|
|
}
|
|
|
|
GLintptr PrimitiveAssembler::MakeQuadArray(u32 first, u32 count) {
|
|
const std::size_t size{CalculateQuadSize(count)};
|
|
auto [dst_pointer, index_offset] = buffer_cache.ReserveMemory(size);
|
|
|
|
for (u32 primitive = 0; primitive < count / 4; ++primitive) {
|
|
for (u32 i = 0; i < TRIANGLES_PER_QUAD; ++i) {
|
|
const u32 index = first + primitive * 4 + QUAD_MAP[i];
|
|
std::memcpy(dst_pointer, &index, sizeof(index));
|
|
dst_pointer += sizeof(index);
|
|
}
|
|
}
|
|
|
|
return index_offset;
|
|
}
|
|
|
|
GLintptr PrimitiveAssembler::MakeQuadIndexed(Tegra::GPUVAddr gpu_addr, std::size_t index_size,
|
|
u32 count) {
|
|
const std::size_t map_size{CalculateQuadSize(count)};
|
|
auto [dst_pointer, index_offset] = buffer_cache.ReserveMemory(map_size);
|
|
|
|
auto& memory_manager = Core::System::GetInstance().GPU().MemoryManager();
|
|
const std::optional<VAddr> cpu_addr{memory_manager.GpuToCpuAddress(gpu_addr)};
|
|
const u8* source{Memory::GetPointer(*cpu_addr)};
|
|
|
|
for (u32 primitive = 0; primitive < count / 4; ++primitive) {
|
|
for (std::size_t i = 0; i < TRIANGLES_PER_QUAD; ++i) {
|
|
const u32 index = primitive * 4 + QUAD_MAP[i];
|
|
const u8* src_offset = source + (index * index_size);
|
|
|
|
std::memcpy(dst_pointer, src_offset, index_size);
|
|
dst_pointer += index_size;
|
|
}
|
|
}
|
|
|
|
return index_offset;
|
|
}
|
|
|
|
} // namespace OpenGL
|