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check depthScale value for optimized ushort->uint case (fixes bug 11474)

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Brian 2007-07-08 08:53:09 -06:00
parent 99d62f2922
commit 9fa3bbcb5a
1 changed files with 13 additions and 1 deletions
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14
src/mesa/main/image.c
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@ -3882,6 +3882,16 @@ _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
} \
} while (0)
/**
* Unpack a row of depth/z values from memory, returning GLushort, GLuint
* or GLfloat values.
* The glPixelTransfer (scale/bias) params will be applied.
*
* \param dstType one of GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, GL_FLOAT
* \param depthScale scale factor (max value) for returned GLushort or
* GLuint values (ignored for GLfloat).
*/
void
_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
GLenum dstType, GLvoid *dest, GLfloat depthScale,
@ -3907,7 +3917,9 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
}
return;
}
if (srcType == GL_UNSIGNED_SHORT && dstType == GL_UNSIGNED_INT) {
if (srcType == GL_UNSIGNED_SHORT
&& dstType == GL_UNSIGNED_INT
&& depthScale == (GLfloat) 0xffffffff) {
const GLushort *src = (const GLushort *) source;
GLuint *dst = (GLuint *) dest;
GLuint i;