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The bones of what will become a Metal backend.

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This isn't anywhere close to usable (not even a blank screen will work), let alone complete. It's about 20% done.
This commit is contained in:
Alex Szpakowski
2020-01-26 15:46:33 -04:00
parent 23bc1a7aae
commit 74cf9b8236
58 changed files with 56720 additions and 15 deletions
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src/common/pixelformat.cpp
+51
View File
@@ -177,6 +177,57 @@ size_t getPixelFormatSize(PixelFormat format)
}
}
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_sRGBA8_UNORM:
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)
{
switch (format)
src/common/pixelformat.h
+1
View File
@@ -137,6 +137,7 @@ bool isPixelFormatStencil(PixelFormat format);
* NOTE: Currently returns 0 for compressed formats.
**/
size_t getPixelFormatSize(PixelFormat format);
size_t getPixelFormatRowStride(PixelFormat format, int width);
/**
* Gets the number of color components in the given pixel format.