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PGXP: Add initial implementation

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This commit is contained in:
Connor McLaughlin
2020-08-02 00:25:07 +10:00
parent 013497cf20
commit 0c1b637549
30 changed files with 1699 additions and 377 deletions
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22
src/core/gpu.h
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@ -136,7 +136,13 @@ public:
// DMA access
void DMARead(u32* words, u32 word_count);
void DMAWrite(const u32* words, u32 word_count);
ALWAYS_INLINE bool BeginDMAWrite() const { return (m_GPUSTAT.dma_direction == DMADirection::CPUtoGP0); }
ALWAYS_INLINE void DMAWrite(u32 address, u32 value)
{
m_fifo.Push((ZeroExtend64(address) << 32) | ZeroExtend64(value));
}
void EndDMAWrite();
/// Returns the number of pending GPU ticks.
TickCount GetPendingCRTCTicks() const;
@ -276,6 +282,14 @@ protected:
// Sprites/rectangles should be clipped to 12 bits before drawing.
static constexpr s32 TruncateVertexPosition(s32 x) { return SignExtendN<11, s32>(x); }
struct NativeVertex
{
s16 x;
s16 y;
u32 color;
u16 texcoord;
};
union VRAMPixel
{
u16 bits;
@ -700,11 +714,15 @@ protected:
u16 row;
} m_vram_transfer = {};
HeapFIFOQueue<u32, MAX_FIFO_SIZE> m_fifo;
HeapFIFOQueue<u64, MAX_FIFO_SIZE> m_fifo;
std::vector<u32> m_blit_buffer;
u32 m_blit_remaining_words;
RenderCommand m_render_command{};
ALWAYS_INLINE u32 FifoPop() { return Truncate32(m_fifo.Pop()); }
ALWAYS_INLINE u32 FifoPeek() { return Truncate32(m_fifo.Peek()); }
ALWAYS_INLINE u32 FifoPeek(u32 i) { return Truncate32(m_fifo.Peek(i)); }
TickCount m_max_run_ahead = 128;
u32 m_fifo_size = 128;