metal: tag texture formats with compute write support

src/common/pixelformat.cpp

@@ -324,59 +324,6 @@ size_t getPixelFormatSliceSize(PixelFormat format, int width, int height)
 	return info.blockSize * blockW * blockH;
 }
 
-size_t getPixelFormatRowStride(PixelFormat format, int width)
-{
-	switch (format)
-	{
-	case PIXELFORMAT_R8_UNORM:
-	case PIXELFORMAT_STENCIL8:
-		return 1 * width;
-	case PIXELFORMAT_RG8_UNORM:
-	case PIXELFORMAT_R16_UNORM:
-	case PIXELFORMAT_R16_FLOAT:
-	case PIXELFORMAT_LA8_UNORM:
-	case PIXELFORMAT_RGBA4_UNORM:
-	case PIXELFORMAT_RGB5A1_UNORM:
-	case PIXELFORMAT_RGB565_UNORM:
-	case PIXELFORMAT_DEPTH16_UNORM:
-		return 2 * width;
-	case PIXELFORMAT_RGBA8_UNORM:
-	case PIXELFORMAT_RGBA8_UNORM_sRGB:
-	case PIXELFORMAT_BGRA8_UNORM:
-	case PIXELFORMAT_BGRA8_UNORM_sRGB:
-	case PIXELFORMAT_RG16_UNORM:
-	case PIXELFORMAT_RG16_FLOAT:
-	case PIXELFORMAT_R32_FLOAT:
-	case PIXELFORMAT_RGB10A2_UNORM:
-	case PIXELFORMAT_RG11B10_FLOAT:
-	case PIXELFORMAT_DEPTH24_UNORM:
-	case PIXELFORMAT_DEPTH32_FLOAT:
-	case PIXELFORMAT_DEPTH24_UNORM_STENCIL8:
-		return 4 * width;
-	case PIXELFORMAT_RGBA16_UNORM:
-	case PIXELFORMAT_RGBA16_FLOAT:
-	case PIXELFORMAT_RG32_FLOAT:
-	case PIXELFORMAT_DEPTH32_FLOAT_STENCIL8:
-		return 8 * width;
-	case PIXELFORMAT_RGBA32_FLOAT:
-		return 16 * width;
-	case PIXELFORMAT_DXT1_UNORM:
-	case PIXELFORMAT_DXT3_UNORM:
-	case PIXELFORMAT_BC4_UNORM:
-	case PIXELFORMAT_BC4_SNORM:
-		return width; // TODO: block size?
-	case PIXELFORMAT_DXT5_UNORM:
-		return 2 * width;
-	case PIXELFORMAT_UNKNOWN:
-	case PIXELFORMAT_NORMAL:
-	case PIXELFORMAT_HDR:
-	case PIXELFORMAT_MAX_ENUM:
-		return 0;
-	}
-
-	return 0;
-}
-
 int getPixelFormatColorComponents(PixelFormat format)
 {
 	return formatInfo[format].components;