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mesa: remove unused _mesa_rescale_teximage2d() function

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It was only used by the old tdfx driver, IIRC.
This commit is contained in:
Brian Paul 2011-10-05 21:14:37 -06:00
parent 2c5bb57b50
commit c80aaad77e
2 changed files with 0 additions and 84 deletions
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75
src/mesa/main/mipmap.c
View file

@ -2048,78 +2048,3 @@ _mesa_generate_mipmap(struct gl_context *ctx, GLenum target,
generate_mipmap_uncompressed(ctx, target, texObj, srcImage, maxLevel);
}
}
/**
* Helper function for drivers which need to rescale texture images to
* certain aspect ratios.
* Nearest filtering only (for broken hardware that can't support
* all aspect ratios). This can be made a lot faster, but I don't
* really care enough...
*/
void
_mesa_rescale_teximage2d(GLuint bytesPerPixel,
GLuint srcStrideInPixels,
GLuint dstRowStride,
GLint srcWidth, GLint srcHeight,
GLint dstWidth, GLint dstHeight,
const GLvoid *srcImage, GLvoid *dstImage)
{
GLint row, col;
#define INNER_LOOP( TYPE, HOP, WOP ) \
for ( row = 0 ; row < dstHeight ; row++ ) { \
GLint srcRow = row HOP hScale; \
for ( col = 0 ; col < dstWidth ; col++ ) { \
GLint srcCol = col WOP wScale; \
dst[col] = src[srcRow * srcStrideInPixels + srcCol]; \
} \
dst = (TYPE *) ((GLubyte *) dst + dstRowStride); \
} \
#define RESCALE_IMAGE( TYPE ) \
do { \
const TYPE *src = (const TYPE *)srcImage; \
TYPE *dst = (TYPE *)dstImage; \
\
if ( srcHeight < dstHeight ) { \
const GLint hScale = dstHeight / srcHeight; \
if ( srcWidth < dstWidth ) { \
const GLint wScale = dstWidth / srcWidth; \
INNER_LOOP( TYPE, /, / ); \
} \
else { \
const GLint wScale = srcWidth / dstWidth; \
INNER_LOOP( TYPE, /, * ); \
} \
} \
else { \
const GLint hScale = srcHeight / dstHeight; \
if ( srcWidth < dstWidth ) { \
const GLint wScale = dstWidth / srcWidth; \
INNER_LOOP( TYPE, *, / ); \
} \
else { \
const GLint wScale = srcWidth / dstWidth; \
INNER_LOOP( TYPE, *, * ); \
} \
} \
} while (0)
switch ( bytesPerPixel ) {
case 4:
RESCALE_IMAGE( GLuint );
break;
case 2:
RESCALE_IMAGE( GLushort );
break;
case 1:
RESCALE_IMAGE( GLubyte );
break;
default:
_mesa_problem(NULL,"unexpected bytes/pixel in _mesa_rescale_teximage2d");
}
}

9
src/mesa/main/mipmap.h
View file

@ -46,13 +46,4 @@ _mesa_generate_mipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj);
extern void
_mesa_rescale_teximage2d(GLuint bytesPerPixel,
GLuint srcStrideInPixels,
GLuint dstRowStride,
GLint srcWidth, GLint srcHeight,
GLint dstWidth, GLint dstHeight,
const GLvoid *srcImage, GLvoid *dstImage);
#endif /* MIPMAP_H */