Lothario
/
axmol
mirror of https://github.com/axmolengine/axmol.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #240 from halx99/refine-pixelformats2 

Refine pixel formats manipulate
This commit is contained in:
HALX99 2020-10-21 08:47:46 +08:00 committed by GitHub
parent 59b1bd30e8 d28891fb62
commit 151c9c765e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 21 additions and 206 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

213
cocos/renderer/backend/TextureUtils.cpp
View File

@ -1,5 +1,6 @@
/**************************************************************************** /****************************************************************************
Copyright (c) 2018-2019 Xiamen Yaji Software Co., Ltd. Copyright (c) 2018-2019 Xiamen Yaji Software Co., Ltd.
Copyright (c) 2020 c4games.com
http://www.cocos2d-x.org http://www.cocos2d-x.org
@ -204,45 +205,6 @@ namespace backend { namespace PixelFormatUtils {
} }
} }
// IIIIIIIIAAAAAAAA -> BBBBBGGG GGGRRRR
void convertLA8ToBGR565(const unsigned char* data, size_t dataLen, unsigned char* outData)
{
uint16_t* out16 = (uint16_t*)outData;
for (ssize_t i = 0, l = dataLen - 1; i < l; i += 2)
{
*out16++ = (data[i] & 0x00F8) << 8 //R
| (data[i] & 0x00FC) << 3 //G
| (data[i] & 0x00F8) >> 3; //B
}
}
// IIIIIIIIAAAAAAAA -> BBBBBGGG GGRRRRRA
void convertLA8ToBGR5A1(const unsigned char* data, size_t dataLen, unsigned char* outData)
{
uint16_t* out16 = (uint16_t*)outData;
for (ssize_t i = 0, l = dataLen - 1; i < l; i += 2)
{
*out16++ = (data[i] & 0x00F8) << 7 //R
| (data[i] & 0x00F8) << 2 //G
| (data[i] & 0x00F8) >> 3 //B
| (data[i + 1] & 0x0080) << 8; //A
}
}
// IIIIIIIIAAAAAAAA -> AAAABBBB GGGGRRRR
void convertLA8ToABGR4(const unsigned char* data, size_t dataLen, unsigned char* outData)
{
uint16_t* out16 = (uint16_t*)outData;
for (ssize_t i = 0, l = dataLen - 1; i < l; i += 2)
{
*out16++ = (data[i] & 0x00F0) << 8 //R
| (data[i] & 0x00F0) << 4 //G
| (data[i] & 0x00F0) //B
| (data[i + 1] & 0x00F0) >> 4; //A
}
}
// IIIIIIII -> RRRRRGGGGGBBBBBA // IIIIIIII -> RRRRRGGGGGBBBBBA
void convertL8ToRGB5A1(const unsigned char* data, size_t dataLen, unsigned char* outData) void convertL8ToRGB5A1(const unsigned char* data, size_t dataLen, unsigned char* outData)
{ {
@ -256,45 +218,6 @@ namespace backend { namespace PixelFormatUtils {
} }
} }
/// IIIIIIII -> BBBBBGGG GGRRRRRA
void convertL8ToBGR5A1(const unsigned char* data, size_t dataLen, unsigned char* outData)
{
uint16_t *out16 = (uint16_t*)outData;
for (size_t i = 0; i < dataLen; ++i)
{
*out16++ = (data[i] & 0xF8) << 7 //R
| (data[i] & 0xF8) << 2 //G
| (data[i] & 0xF8) >> 3 //B
| 0x8000; //A
}
}
// IIIIIIIII -> BBBBBGGG GGGRRRRR
void convertL8ToBGR565(const unsigned char* data, size_t dataLen, unsigned char* outData)
{
uint16_t *out16 = (uint16_t*)outData;
for (size_t i = 0; i < dataLen; ++i)
{
*out16++ = (data[i] & 0xF8) << 8 //R
| (data[i] & 0xFC) << 3 //G
| (data[i] & 0xF8) >> 3 //B
;
}
}
// IIIIIIIII -> AAAABBBBB GGGGRRRR
void convertL8ToABGR4(const unsigned char* data, size_t dataLen, unsigned char* outData)
{
uint16_t *out16 = (uint16_t*)outData;
for (size_t i = 0; i < dataLen; ++i)
{
*out16++ = (data[i] & 0xF0) << 8 //R
| (data[i] & 0xF0) << 4 //G
| (data[i] & 0xF0) //B
| 0x000F;
}
}
// IIIIIIIIAAAAAAAA -> RRRRRGGGGGBBBBBA // IIIIIIIIAAAAAAAA -> RRRRRGGGGGBBBBBA
void convertLA8ToRGB5A1(const unsigned char* data, size_t dataLen, unsigned char* outData) void convertLA8ToRGB5A1(const unsigned char* data, size_t dataLen, unsigned char* outData)
{ {
@ -480,43 +403,6 @@ namespace backend { namespace PixelFormatUtils {
} }
} }
// RRRRRRRRGGGGGGGGBBBBBBBB -> BBBBBGGG GGGRRRRR
void convertRGB8ToB5G6R5(const unsigned char *data, size_t dataLen, unsigned char *out)
{
uint16_t *outData = (uint16_t*) out;
for(size_t i = 0;i < dataLen ; i += 3)
{
*outData++ = ((data[i] & 0xF8) << 8)|
((data[i + 1] &0xFC) << 3) |
((data[i + 2] & 0xF8)>> 3);
}
}
// RRRRRRRRGGGGGGGGBBBBBBBB -> BBBBBGGG GGRRRRRA
void convertRGB8ToBGR5A1(const unsigned char *data, size_t dataLen, unsigned char *out)
{
uint16_t *outData = (uint16_t*) out;
for(size_t i = 0;i < dataLen ; i += 3)
{
*outData++ = ((data[i] & 0xF8) << 7) |
((data[i + 1] & 0xF8) << 2) |
((data[i + 2] &0xF8) >> 3) | 0x8000;
}
}
// RRRRRRRRGGGGGGGGBBBBBBBB -> AAAABBBB GGGGRRRR
void convertRGB8ToABGR4(const unsigned char *data, size_t dataLen, unsigned char *out)
{
uint16_t *outData = (uint16_t*) out;
for(size_t i = 0;i < dataLen ; i += 3)
{
*outData++ = ((data[i] & 0xF0) << 8) | //r
((data[i + 1] & 0xF0) << 4) | //g
((data[i + 2] & 0xF0)) | //b
0x000F; //a
}
}
// RRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA -> RRRRRGGG GGBBBBBA // RRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA -> RRRRRGGG GGBBBBBA
void convertRGBA8ToRGB5A1(const unsigned char* data, size_t dataLen, unsigned char* outData) void convertRGBA8ToRGB5A1(const unsigned char* data, size_t dataLen, unsigned char* outData)
{ {
@ -530,46 +416,6 @@ namespace backend { namespace PixelFormatUtils {
} }
} }
// RRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA -> BBBBBGGG GGGRRRR
void convertRGBA8ToBGR565(const unsigned char *data, size_t dataLen, unsigned char *out)
{
uint16_t *outData = (uint16_t*)out;
const size_t pixelCnt = dataLen / 4;
for(size_t i=0;i < pixelCnt; i++ )
{
outData[i] = ((data[i*4 + 2] & 0xF8) >> 3) | //b
((data[i * 4 + 1] & 0xFC ) << 3) | //g
(((data[i * 4 + 0] & 0xF8) << 8)); //r
}
}
// RRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA -> AAAABBBB GGGGRRRR
void convertRGBA8ToABGR4(const unsigned char *data, size_t dataLen, unsigned char *out)
{
uint16_t *outData = (uint16_t*)out;
for(size_t i=0;i < dataLen; i+=4 )
{
*outData++ = (data[i] & 0x00F0) >> 4 //R
| (data[i + 1] & 0x00F0) //G
| (data[i + 2] & 0x00F0) << 4 //B
| (data[i + 3] & 0x00F0) << 8; //A
}
}
// RRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA -> BBBBBGGG GGRRRRRA
void convertRGBA8ToBGR5A1(const unsigned char *data, size_t dataLen, unsigned char *out)
{
uint16_t *outData = (uint16_t*)out;
for(size_t i = 0; i < dataLen; i += 4)
{
*outData++ = ((data[i + 2] & 0xF8) >> 3)| //b
((data[i + 1] & 0xF8 ) << 2) | //g
((data[i + 0] & 0xF8 ) << 7) | //r
((data[i + 3] & 0x80) << 8); //a
}
}
void convertRGB5A1ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData) void convertRGB5A1ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData)
{ {
uint16_t *inData = (uint16_t*)data; uint16_t *inData = (uint16_t*)data;
@ -585,21 +431,6 @@ namespace backend { namespace PixelFormatUtils {
} }
} }
// ABBBBBGG GGGRRRRR -> BBBBBGGG GGRRRRRA
void convertRGB5A1ToBGR5A1(const unsigned char *data, size_t dataLen, unsigned char *out)
{
const size_t pixelLen = dataLen / 2;
const uint16_t *inData = (uint16_t*) data;
uint16_t *outData = (uint16_t*) out;
uint16_t pixel;
for (size_t i = 0; i < pixelLen; i++ )
{
pixel = inData[i];
outData[i] = (pixel >> 1) | ((pixel & 0x0001) << 15);
}
}
void convertRGB565ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData) void convertRGB565ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData)
{ {
uint16_t *inData = (uint16_t*)data; uint16_t *inData = (uint16_t*)data;
@ -615,10 +446,6 @@ namespace backend { namespace PixelFormatUtils {
} }
} }
// BBBBBGGG GGGRRRRR -> BBBGGG GGGRRRRR
// void convertRGB565ToB5G6R5(const unsigned char *data, ssize_t dataLen, unsigned char *out)
void convertRGBA4ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData) void convertRGBA4ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData)
{ {
uint16_t *inData = (uint16_t*)data; uint16_t *inData = (uint16_t*)data;
@ -635,9 +462,6 @@ namespace backend { namespace PixelFormatUtils {
} }
// AAAABBBBGGGGRRRR -> AAAABBBB GGGGRRRR
//void convertRGBA4ToABGR4(const unsigned char *data, ssize_t dataLen, unsigned char *out)
void convertA8ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData) void convertA8ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData)
{ {
for (size_t i = 0; i < dataLen; i++) for (size_t i = 0; i < dataLen; i++)
@ -665,7 +489,6 @@ namespace backend { namespace PixelFormatUtils {
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
cocos2d::backend::PixelFormat convertL8ToFormat(const unsigned char* data, size_t dataLen, PixelFormat format, unsigned char** outData, size_t* outDataLen) cocos2d::backend::PixelFormat convertL8ToFormat(const unsigned char* data, size_t dataLen, PixelFormat format, unsigned char** outData, size_t* outDataLen)
{ {
switch (format) switch (format)
@ -683,17 +506,17 @@ namespace backend { namespace PixelFormatUtils {
case PixelFormat::RGB565: case PixelFormat::RGB565:
*outDataLen = dataLen*2; *outDataLen = dataLen*2;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertL8ToBGR565(data, dataLen, *outData); convertL8ToRGB565(data, dataLen, *outData);
break; break;
case PixelFormat::RGBA4: case PixelFormat::RGBA4:
*outDataLen = dataLen * 2; *outDataLen = dataLen * 2;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertL8ToABGR4(data, dataLen, *outData); convertL8ToRGBA4(data, dataLen, *outData);
break; break;
case PixelFormat::RGB5A1: case PixelFormat::RGB5A1:
*outDataLen = dataLen * 2; *outDataLen = dataLen * 2;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertL8ToBGR5A1(data, dataLen, *outData); convertL8ToRGB5A1(data, dataLen, *outData);
break; break;
case PixelFormat::A8: case PixelFormat::A8:
*outData = (unsigned char*)data; *outData = (unsigned char*)data;
@ -736,17 +559,17 @@ namespace backend { namespace PixelFormatUtils {
case PixelFormat::RGB565: case PixelFormat::RGB565:
*outDataLen = dataLen; *outDataLen = dataLen;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertLA8ToBGR565(data, dataLen, *outData); convertLA8ToRGB565(data, dataLen, *outData);
break; break;
case PixelFormat::RGBA4: case PixelFormat::RGBA4:
*outDataLen = dataLen; *outDataLen = dataLen;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertLA8ToABGR4(data, dataLen, *outData); convertLA8ToRGBA4(data, dataLen, *outData);
break; break;
case PixelFormat::RGB5A1: case PixelFormat::RGB5A1:
*outDataLen = dataLen; *outDataLen = dataLen;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertLA8ToBGR5A1(data, dataLen, *outData); convertLA8ToRGB5A1(data, dataLen, *outData);
break; break;
case PixelFormat::A8: case PixelFormat::A8:
*outDataLen = dataLen/2; *outDataLen = dataLen/2;
@ -785,17 +608,17 @@ namespace backend { namespace PixelFormatUtils {
case PixelFormat::RGB565: case PixelFormat::RGB565:
*outDataLen = dataLen/3*2; *outDataLen = dataLen/3*2;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertRGB8ToB5G6R5(data, dataLen, *outData); convertRGB8ToRGB565(data, dataLen, *outData);
break; break;
case PixelFormat::RGBA4: case PixelFormat::RGBA4:
*outDataLen = dataLen / 3 * 2; *outDataLen = dataLen / 3 * 2;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertRGB8ToABGR4(data, dataLen, *outData); convertRGB8ToRGBA4(data, dataLen, *outData);
break; break;
case PixelFormat::RGB5A1: case PixelFormat::RGB5A1:
*outDataLen = dataLen / 3 * 2; *outDataLen = dataLen / 3 * 2;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertRGB8ToBGR5A1(data, dataLen, *outData); convertRGB8ToRGB5A1(data, dataLen, *outData);
break; break;
case PixelFormat::A8: case PixelFormat::A8:
*outDataLen = dataLen/3; *outDataLen = dataLen/3;
@ -839,18 +662,17 @@ namespace backend { namespace PixelFormatUtils {
case PixelFormat::RGB565: case PixelFormat::RGB565:
*outDataLen = dataLen/2; *outDataLen = dataLen/2;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertRGBA8ToBGR565(data, dataLen, *outData); convertRGBA8ToRGB565(data, dataLen, *outData);
break; break;
case PixelFormat::RGBA4: case PixelFormat::RGBA4:
*outDataLen = dataLen / 2; *outDataLen = dataLen / 2;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
// convertRGBA8ToABGR4(data, dataLen, *outData); convertRGBA8ToRGBA4(data, dataLen, *outData);
convertRGBA8ToRGBA4(data, dataLen, *outData); // == MTLPixelFormatABGR4Unorm ??
break; break;
case PixelFormat::RGB5A1: case PixelFormat::RGB5A1:
*outDataLen = dataLen / 2; *outDataLen = dataLen / 2;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen));
convertRGBA8ToBGR5A1(data, dataLen, *outData); convertRGBA8ToRGB5A1(data, dataLen, *outData);
break; break;
case PixelFormat::A8: case PixelFormat::A8:
*outDataLen = dataLen/4; *outDataLen = dataLen/4;
@ -893,8 +715,7 @@ namespace backend { namespace PixelFormatUtils {
break; break;
case PixelFormat::RGB5A1: case PixelFormat::RGB5A1:
*outDataLen = dataLen; *outDataLen = dataLen;
*outData = (unsigned char*)malloc(sizeof(unsigned char) * (*outDataLen)); *outData = (unsigned char *)data;
convertRGB5A1ToBGR5A1(data, dataLen, *outData);
break; break;
default: default:
// unsupported conversion or don't need to convert // unsupported conversion or don't need to convert
@ -922,8 +743,6 @@ namespace backend { namespace PixelFormatUtils {
case PixelFormat::RGB565: case PixelFormat::RGB565:
*outDataLen = dataLen; *outDataLen = dataLen;
*outData = (unsigned char *)data; *outData = (unsigned char *)data;
// they are identical
//convertRGB565ToB5G6R5(data, dataLen, *outData);
break; break;
default: default:
// unsupported conversion or don't need to convert // unsupported conversion or don't need to convert
@ -974,7 +793,6 @@ namespace backend { namespace PixelFormatUtils {
case PixelFormat::RGBA4: case PixelFormat::RGBA4:
*outDataLen = dataLen; *outDataLen = dataLen;
*outData = (unsigned char *)data; *outData = (unsigned char *)data;
//convertRGBA4ToABGR4(data, dataLen, *outData);
break; break;
default: default:
// unsupported conversion or don't need to convert // unsupported conversion or don't need to convert
@ -1046,13 +864,10 @@ namespace backend { namespace PixelFormatUtils {
return convertRGB5A1ToFormat(data, dataLen, format, outData, outDataLen); return convertRGB5A1ToFormat(data, dataLen, format, outData, outDataLen);
case PixelFormat::RGB565: case PixelFormat::RGB565:
return convertRGB565ToFormat(data, dataLen, format, outData, outDataLen); return convertRGB565ToFormat(data, dataLen, format, outData, outDataLen);
#ifdef CC_USE_METAL
case PixelFormat::RGBA4: case PixelFormat::RGBA4:
return convertRGBA4ToFormat(data, dataLen, format, outData, outDataLen); return convertRGBA4ToFormat(data, dataLen, format, outData, outDataLen);
case PixelFormat::A8: case PixelFormat::A8:
return convertA8ToFormat(data, dataLen, format, outData, outDataLen); return convertA8ToFormat(data, dataLen, format, outData, outDataLen);
#endif
case PixelFormat::BGRA8: case PixelFormat::BGRA8:
return convertBGRA8ToFormat(data, dataLen, format, outData, outDataLen); return convertBGRA8ToFormat(data, dataLen, format, outData, outDataLen);
default: default:

2
cocos/renderer/backend/TextureUtils.h
View File

@ -103,7 +103,7 @@ namespace backend {
void convertRGBA8ToRGBA4(const unsigned char* data, size_t dataLen, unsigned char* outData); void convertRGBA8ToRGBA4(const unsigned char* data, size_t dataLen, unsigned char* outData);
void convertRGBA8ToRGB5A1(const unsigned char* data, size_t dataLen, unsigned char* outData); void convertRGBA8ToRGB5A1(const unsigned char* data, size_t dataLen, unsigned char* outData);
//XXX to RGBA8
void convertRGB5A1ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData); void convertRGB5A1ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData);
void convertRGB565ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData); void convertRGB565ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData);
void convertA8ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData); void convertA8ToRGBA8(const unsigned char* data, size_t dataLen, unsigned char* outData);

2
cocos/renderer/backend/metal/UtilsMTL.mm
View File

@ -102,7 +102,7 @@ static GPUTextureFormatInfo s_textureFormats[] =
{ MTLPixelFormatInvalid, MTLPixelFormatInvalid }, // RGB8 { MTLPixelFormatInvalid, MTLPixelFormatInvalid }, // RGB8
{ MTLPixelFormat(40/*B5G6R5Unorm*/), MTLPixelFormatInvalid }, // R5G6B5 { MTLPixelFormat(40/*B5G6R5Unorm*/), MTLPixelFormatInvalid }, // R5G6B5
{ MTLPixelFormat(42/*ABGR4Unorm*/), MTLPixelFormatInvalid }, // RGBA4 { MTLPixelFormat(42/*ABGR4Unorm*/), MTLPixelFormatInvalid }, // RGBA4
{ MTLPixelFormat(43/*BGR5A1Unorm*/), MTLPixelFormatInvalid }, // RGB5A1 { MTLPixelFormat(41/*A1BGR5Unorm*/), MTLPixelFormatInvalid }, // RGB5A1
{ MTLPixelFormatA8Unorm, MTLPixelFormatInvalid }, // A8 { MTLPixelFormatA8Unorm, MTLPixelFormatInvalid }, // A8
{ MTLPixelFormatInvalid, MTLPixelFormatInvalid }, // L8 { MTLPixelFormatInvalid, MTLPixelFormatInvalid }, // L8
{ MTLPixelFormatInvalid, MTLPixelFormatInvalid }, // LA8 { MTLPixelFormatInvalid, MTLPixelFormatInvalid }, // LA8

4
cocos/renderer/backend/opengl/UtilsGL.cpp
View File

@ -95,9 +95,9 @@ static GPUTextureFormatInfo s_textureFormats[] =
{ GL_RGBA, GL_SRGB8_ALPHA8_EXT, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, }, // RGBA8 { GL_RGBA, GL_SRGB8_ALPHA8_EXT, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, }, // RGBA8
{ GL_RGBA, GL_SRGB8_ALPHA8_EXT, GL_BGRA_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE, }, // BGRA8 { GL_RGBA, GL_SRGB8_ALPHA8_EXT, GL_BGRA_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE, }, // BGRA8
{ GL_RGB, GL_SRGB_EXT, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE, }, // RGB8 { GL_RGB, GL_SRGB_EXT, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE, }, // RGB8
{ GL_RGB565, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5}, // RGB565 TO-CHECK: match to MTLPixelFormatB5G6R5Unorm { GL_RGB, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5}, // RGB565 === MTLPixelFormatB5G6R5Unorm
{ GL_RGBA, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4}, // RGBA4 === MTLPixelFormatABGR4Unorm { GL_RGBA, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4}, // RGBA4 === MTLPixelFormatABGR4Unorm
{ GL_RGB5_A1, GL_ZERO, GL_BGRA_EXT, GL_BGRA_EXT/*GL_BGRA_EXT*/, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT}, // RGB5A1 TO-CHECK: match to MTLPixelFormatBGR5A1Unorm { GL_RGBA, GL_ZERO, GL_RGBA, GL_RGBA/*GL_BGRA_EXT*/, GL_UNSIGNED_SHORT_5_5_5_1}, // RGB5A1 === MTLPixelFormatA1BGR5Unorm
{ GL_ALPHA, GL_ZERO, GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, }, // A8 { GL_ALPHA, GL_ZERO, GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, }, // A8
{ GL_LUMINANCE, GL_ZERO, GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE, }, // L8 { GL_LUMINANCE, GL_ZERO, GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE, }, // L8
{ GL_LUMINANCE_ALPHA, GL_ZERO, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, }, // LA8 { GL_LUMINANCE_ALPHA, GL_ZERO, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, }, // LA8