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mesa: Reverse s8z24 into z24s8 as required by EXT_packed_depth_stencil.

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Actually, after spotting this problem, I realized this is unreachable
code. However don't bother to enable this fast path now, given the normal
path is working just fine.
This commit is contained in:
José Fonseca 2009-06-10 21:29:25 +01:00
parent 8fa8669aeb
commit 337f559cd2
1 changed files with 7 additions and 2 deletions
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9
src/mesa/state_tracker/st_cb_readpixels.c
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@ -445,11 +445,16 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
}
}
else {
/* untested, but simple: */
/* XXX: unreachable code -- should be before st_read_stencil_pixels */
assert(format == GL_DEPTH_STENCIL_EXT);
for (i = 0; i < height; i++) {
GLuint *zshort = (GLuint *)dst;
pipe_get_tile_raw(trans, 0, y, width, 1, dst, 0);
y += yStep;
/* Reverse into 24/8 */
for (j = 0; j < width; j++) {
zshort[j] = (zshort[j] << 8) | (zshort[j] >> 24);
}
dst += dstStride;
}
}
@ -472,7 +477,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
}
}
else {
/* untested, but simple: */
/* XXX: unreachable code -- should be before st_read_stencil_pixels */
assert(format == GL_DEPTH_STENCIL_EXT);
for (i = 0; i < height; i++) {
pipe_get_tile_raw(trans, 0, y, width, 1, dst, 0);