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Merge Image and Canvas GL backend classes into new common Texture class.

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This commit is contained in:
Alex Szpakowski
2020-02-07 20:29:21 -04:00
parent 17f77407bb
commit 12c90b3dca
21 changed files with 521 additions and 679 deletions
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src/common/pixelformat.h
+43 -3
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@@ -109,9 +109,23 @@ enum PixelFormat
PIXELFORMAT_MAX_ENUM
};
struct PixelFormatInfo
{
int components;
size_t blockWidth;
size_t blockHeight;
size_t blockSize;
bool color;
bool depth;
bool stencil;
bool compressed;
};
bool getConstant(PixelFormat in, const char *&out);
bool getConstant(const char *in, PixelFormat &out);
const PixelFormatInfo &getPixelFormatInfo(PixelFormat format);
/**
* Gets whether the specified pixel format is a compressed type.
**/
@@ -143,10 +157,36 @@ PixelFormat getSRGBPixelFormat(PixelFormat format);
PixelFormat getLinearPixelFormat(PixelFormat format);
/**
* Gets the size in bytes of the specified pixel format.
* NOTE: Currently returns 0 for compressed formats.
* Gets the block size in bytes of the specified pixel format.
* This is the size in bytes of a pixel for uncompressed formats, but *not*
* for compressed formats!
**/
size_t getPixelFormatSize(PixelFormat format);
size_t getPixelFormatBlockSize(PixelFormat format);
/**
* Gets the size in bytes of a row of an uncompressed pixel format.
**/
size_t getPixelFormatUncompressedRowSize(PixelFormat format, int width);
/**
* Gets the size in bytes of a row of a compressed pixel format. This is the
* number of blocks used by the given width, multiplied by the block size. The
* number of rows of blocks for a given height can be computed by
* getPixelFormatCompressedBlockRowCount.
**/
size_t getPixelFormatCompressedBlockRowSize(PixelFormat format, int width);
/**
* Gets the number of rows of blocks the given compressed pixel format will use,
* for the given height in pixels.
**/
size_t getPixelFormatCompressedBlockRowCount(PixelFormat format, int height);
/**
* Gets the size in bytes of a slice (width x height 2D plane) which uses the
* given pixel format.
**/
size_t getPixelFormatSliceSize(PixelFormat format, int width, int height);
/**
* Gets the number of color components in the given pixel format.