mirror of
https://github.com/RetroDECK/Duckstation.git
synced 2024-10-23 23:55:42 +00:00
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
#pragma once
|
|
#include "common/gl_texture.h"
|
|
#include "gpu.h"
|
|
#include <array>
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
namespace GL {
|
|
class Texture;
|
|
}
|
|
|
|
class GPU_SW final : public GPU
|
|
{
|
|
public:
|
|
GPU_SW();
|
|
~GPU_SW() override;
|
|
|
|
bool Initialize(System* system, DMA* dma, InterruptController* interrupt_controller, Timers* timers) override;
|
|
void Reset() override;
|
|
|
|
u16 GetPixel(u32 x, u32 y) const { return m_vram[VRAM_WIDTH * y + x]; }
|
|
const u16* GetPixelPtr(u32 x, u32 y) const { return &m_vram[VRAM_WIDTH * y + x]; }
|
|
u16* GetPixelPtr(u32 x, u32 y) { return &m_vram[VRAM_WIDTH * y + x]; }
|
|
void SetPixel(u32 x, u32 y, u16 value) { m_vram[VRAM_WIDTH * y + x] = value; }
|
|
|
|
protected:
|
|
enum : u32
|
|
{
|
|
MAX_VERTICES_PER_POLYGON = 4
|
|
};
|
|
|
|
struct SWVertex
|
|
{
|
|
s32 x, y;
|
|
u8 color_r, color_g, color_b;
|
|
u8 texcoord_x, texcoord_y;
|
|
};
|
|
|
|
void ReadVRAM(u32 x, u32 y, u32 width, u32 height, void* buffer) override;
|
|
void FillVRAM(u32 x, u32 y, u32 width, u32 height, u16 color) override;
|
|
void UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void* data) override;
|
|
void CopyVRAM(u32 src_x, u32 src_y, u32 dst_x, u32 dst_y, u32 width, u32 height) override;
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
// Scanout
|
|
//////////////////////////////////////////////////////////////////////////
|
|
static void CopyOut15Bit(const u16* src_ptr, u32 src_stride, u32* dst_ptr, u32 dst_stride, u32 width, u32 height);
|
|
|
|
static void CopyOut24Bit(const u16* src_ptr, u32 src_stride, u32* dst_ptr, u32 dst_stride, u32 width, u32 height);
|
|
|
|
void UpdateDisplay() override;
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
// Rasterization
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
void DispatchRenderCommand(RenderCommand rc, u32 num_vertices, const u32* command_ptr) override;
|
|
|
|
static bool IsClockwiseWinding(const SWVertex* v0, const SWVertex* v1, const SWVertex* v2);
|
|
|
|
void ShadePixel(RenderCommand rc, u32 x, u32 y, u8 color_r, u8 color_g, u8 color_b, u8 texcoord_x, u8 texcoord_y, bool dithering);
|
|
void DrawTriangle(RenderCommand rc, const SWVertex* v0, const SWVertex* v1, const SWVertex* v2);
|
|
void DrawRectangle(RenderCommand rc, s32 origin_x, s32 origin_y, u32 width, u32 height, u8 r, u8 g, u8 b,
|
|
u8 origin_texcoord_x, u8 origin_texcoord_y);
|
|
|
|
std::unique_ptr<GL::Texture> m_display_texture;
|
|
std::vector<u32> m_display_texture_buffer;
|
|
|
|
std::array<SWVertex, MAX_VERTICES_PER_POLYGON> m_vertex_buffer;
|
|
std::array<u16, VRAM_WIDTH * VRAM_HEIGHT> m_vram;
|
|
};
|