dolphin/Source/Core/VideoCommon/TextureDecoder.h

108 lines
3.6 KiB
C++

// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <tuple>
#include "Common/CommonTypes.h"
enum
{
TMEM_SIZE = 1024 * 1024,
TMEM_LINE_SIZE = 32,
};
alignas(16) extern u8 texMem[TMEM_SIZE];
enum TextureFormat
{
// These are the texture formats that can be read by the texture mapper.
GX_TF_I4 = 0x0,
GX_TF_I8 = 0x1,
GX_TF_IA4 = 0x2,
GX_TF_IA8 = 0x3,
GX_TF_RGB565 = 0x4,
GX_TF_RGB5A3 = 0x5,
GX_TF_RGBA8 = 0x6,
GX_TF_C4 = 0x8,
GX_TF_C8 = 0x9,
GX_TF_C14X2 = 0xA,
GX_TF_CMPR = 0xE,
_GX_TF_ZTF = 0x10, // flag for Z texture formats (used internally by dolphin)
// Depth texture formats (which directly map to the equivalent colour format above.)
GX_TF_Z8 = 0x1 | _GX_TF_ZTF,
GX_TF_Z16 = 0x3 | _GX_TF_ZTF,
GX_TF_Z24X8 = 0x6 | _GX_TF_ZTF,
_GX_TF_CTF = 0x20, // flag for copy-texture-format only (used internally by dolphin)
// These are extra formats that can be used when copying from efb,
// they use one of texel formats from above, but pack diffrent data into them.
GX_CTF_R4 = 0x0 | _GX_TF_CTF,
GX_CTF_RA4 = 0x2 | _GX_TF_CTF,
GX_CTF_RA8 = 0x3 | _GX_TF_CTF,
GX_CTF_YUVA8 = 0x6 | _GX_TF_CTF, // YUV 4:4:4 - Dolphin doesn't implement this format as no
// commercial games use it
GX_CTF_A8 = 0x7 | _GX_TF_CTF,
GX_CTF_R8 = 0x8 | _GX_TF_CTF,
GX_CTF_G8 = 0x9 | _GX_TF_CTF,
GX_CTF_B8 = 0xA | _GX_TF_CTF,
GX_CTF_RG8 = 0xB | _GX_TF_CTF,
GX_CTF_GB8 = 0xC | _GX_TF_CTF,
// extra depth texture formats that can be used for efb copies.
GX_CTF_Z4 = 0x0 | _GX_TF_ZTF | _GX_TF_CTF,
GX_CTF_Z8H = 0x8 | _GX_TF_ZTF | _GX_TF_CTF, // This produces an identical result to to GX_TF_Z8
GX_CTF_Z8M = 0x9 | _GX_TF_ZTF | _GX_TF_CTF,
GX_CTF_Z8L = 0xA | _GX_TF_ZTF | _GX_TF_CTF,
GX_CTF_Z16R = 0xB | _GX_TF_ZTF | _GX_TF_CTF, // Reversed version of GX_TF_Z16
GX_CTF_Z16L = 0xC | _GX_TF_ZTF | _GX_TF_CTF,
};
enum TlutFormat
{
GX_TL_IA8 = 0x0,
GX_TL_RGB565 = 0x1,
GX_TL_RGB5A3 = 0x2,
};
struct EFBCopyFormat
{
EFBCopyFormat(u32 efb_format_, TextureFormat copy_format_)
: efb_format(efb_format_), copy_format(copy_format_)
{
}
bool operator<(const EFBCopyFormat& rhs) const
{
return std::tie(efb_format, copy_format) < std::tie(rhs.efb_format, rhs.copy_format);
}
u32 efb_format;
TextureFormat copy_format;
};
int TexDecoder_GetTexelSizeInNibbles(int format);
int TexDecoder_GetTextureSizeInBytes(int width, int height, int format);
int TexDecoder_GetBlockWidthInTexels(u32 format);
int TexDecoder_GetBlockHeightInTexels(u32 format);
int TexDecoder_GetPaletteSize(int fmt);
int TexDecoder_GetEfbCopyBaseFormat(int format);
void TexDecoder_Decode(u8* dst, const u8* src, int width, int height, int texformat, const u8* tlut,
TlutFormat tlutfmt);
void TexDecoder_DecodeRGBA8FromTmem(u8* dst, const u8* src_ar, const u8* src_gb, int width,
int height);
void TexDecoder_DecodeTexel(u8* dst, const u8* src, int s, int t, int imageWidth, int texformat,
const u8* tlut, TlutFormat tlutfmt);
void TexDecoder_DecodeTexelRGBA8FromTmem(u8* dst, const u8* src_ar, const u8* src_gb, int s, int t,
int imageWidth);
void TexDecoder_SetTexFmtOverlayOptions(bool enable, bool center);
/* Internal method, implemented by TextureDecoder_Generic and TextureDecoder_x64. */
void _TexDecoder_DecodeImpl(u32* dst, const u8* src, int width, int height, int texformat,
const u8* tlut, TlutFormat tlutfmt);