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GPU: Split software to frontend/backend

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This commit is contained in:
Connor McLaughlin
2020-11-21 13:32:58 +10:00
parent 03d4f80883
commit 2595e31575
20 changed files with 2035 additions and 970 deletions
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66
src/core/gpu.h
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@ -159,9 +159,6 @@ protected:
ALWAYS_INLINE static constexpr TickCount SystemTicksToGPUTicks(TickCount sysclk_ticks) { return sysclk_ticks << 1; }
// Helper/format conversion functions.
static constexpr u8 Convert5To8(u8 x5) { return (x5 << 3) | (x5 & 7); }
static constexpr u8 Convert8To5(u8 x8) { return (x8 >> 3); }
static constexpr u32 RGBA5551ToRGBA8888(u16 color)
{
u8 r = Truncate8(color & 31);
@ -197,68 +194,10 @@ protected:
{
return std::make_tuple(static_cast<u8>(rgb24), static_cast<u8>(rgb24 >> 8), static_cast<u8>(rgb24 >> 16));
}
static constexpr u32 PackColorRGB24(u8 r, u8 g, u8 b)
{
return ZeroExtend32(r) | (ZeroExtend32(g) << 8) | (ZeroExtend32(b) << 16);
}
static bool DumpVRAMToFile(const char* filename, u32 width, u32 height, u32 stride, const void* buffer,
bool remove_alpha);
union VRAMPixel
{
u16 bits;
BitField<u16, u8, 0, 5> r;
BitField<u16, u8, 5, 5> g;
BitField<u16, u8, 10, 5> b;
BitField<u16, bool, 15, 1> c;
u8 GetR8() const { return Convert5To8(r); }
u8 GetG8() const { return Convert5To8(g); }
u8 GetB8() const { return Convert5To8(b); }
void Set(u8 r_, u8 g_, u8 b_, bool c_ = false)
{
bits = (ZeroExtend16(r_)) | (ZeroExtend16(g_) << 5) | (ZeroExtend16(b_) << 10) | (static_cast<u16>(c_) << 15);
}
void ClampAndSet(u8 r_, u8 g_, u8 b_, bool c_ = false)
{
Set(std::min<u8>(r_, 0x1F), std::min<u8>(g_, 0x1F), std::min<u8>(b_, 0x1F), c_);
}
void SetRGB24(u32 rgb24, bool c_ = false)
{
bits = Truncate16(((rgb24 >> 3) & 0x1F) | (((rgb24 >> 11) & 0x1F) << 5) | (((rgb24 >> 19) & 0x1F) << 10)) |
(static_cast<u16>(c_) << 15);
}
void SetRGB24(u8 r8, u8 g8, u8 b8, bool c_ = false)
{
bits = (ZeroExtend16(r8 >> 3)) | (ZeroExtend16(g8 >> 3) << 5) | (ZeroExtend16(b8 >> 3) << 10) |
(static_cast<u16>(c_) << 15);
}
void SetRGB24Dithered(u32 x, u32 y, u8 r8, u8 g8, u8 b8, bool c_ = false)
{
const s32 offset = DITHER_MATRIX[y & 3][x & 3];
r8 = static_cast<u8>(std::clamp<s32>(static_cast<s32>(ZeroExtend32(r8)) + offset, 0, 255));
g8 = static_cast<u8>(std::clamp<s32>(static_cast<s32>(ZeroExtend32(g8)) + offset, 0, 255));
b8 = static_cast<u8>(std::clamp<s32>(static_cast<s32>(ZeroExtend32(b8)) + offset, 0, 255));
SetRGB24(r8, g8, b8, c_);
}
u32 ToRGB24() const
{
const u32 r_ = ZeroExtend32(r.GetValue());
const u32 g_ = ZeroExtend32(g.GetValue());
const u32 b_ = ZeroExtend32(b.GetValue());
return ((r_ << 3) | (r_ & 7)) | (((g_ << 3) | (g_ & 7)) << 8) | (((b_ << 3) | (b_ & 7)) << 16);
}
};
void SoftReset();
// Sets dots per scanline
@ -464,10 +403,7 @@ protected:
u32 texture_page_y;
u32 texture_palette_x;
u32 texture_palette_y;
u8 texture_window_and_x;
u8 texture_window_and_y;
u8 texture_window_or_x;
u8 texture_window_or_y;
GPUTextureWindow texture_window;
bool texture_x_flip;
bool texture_y_flip;
bool texture_page_changed;