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authorBrian Paul <brianp@vmware.com>2009-11-11 19:37:53 -0700
committerBrian Paul <brianp@vmware.com>2009-11-11 19:38:19 -0700
commit0a39620d6de27ae471c181046480d274a2327476 (patch)
tree24f93230882017fd8d4c885644e2e96e4cb4730a /src/mesa/swrast
parent7dfea5c0722e9da101805c15b9dd26352816bca9 (diff)
swrast: handle additional Z24 formats in read_depth_pixels()
Diffstat (limited to 'src/mesa/swrast')
-rw-r--r--src/mesa/swrast/s_readpix.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c
index a855fd8068..44a11cd6dd 100644
--- a/src/mesa/swrast/s_readpix.c
+++ b/src/mesa/swrast/s_readpix.c
@@ -120,8 +120,12 @@ read_depth_pixels( GLcontext *ctx,
&& !biasOrScale && !packing->SwapBytes) {
/* Special case: directly read 24-bit unsigned depth values. */
GLint j;
- ASSERT(rb->Format == MESA_FORMAT_X8_Z24);
- ASSERT(rb->DataType == GL_UNSIGNED_INT);
+ ASSERT(rb->Format == MESA_FORMAT_X8_Z24 ||
+ rb->Format == MESA_FORMAT_S8_Z24 ||
+ rb->Format == MESA_FORMAT_Z24_X8 ||
+ rb->Format == MESA_FORMAT_Z24_S8);
+ ASSERT(rb->DataType == GL_UNSIGNED_INT ||
+ rb->DataType == GL_UNSIGNED_INT_24_8);
for (j = 0; j < height; j++, y++) {
GLuint *dest = (GLuint *)
_mesa_image_address2d(packing, pixels, width, height,
@@ -129,9 +133,18 @@ read_depth_pixels( GLcontext *ctx,
GLint k;
rb->GetRow(ctx, rb, width, x, y, dest);
/* convert range from 24-bit to 32-bit */
- for (k = 0; k < width; k++) {
- /* Note: put MSByte of 24-bit value into LSByte */
- dest[k] = (dest[k] << 8) | ((dest[k] >> 16) & 0xff);
+ if (rb->Format == MESA_FORMAT_X8_Z24 ||
+ rb->Format == MESA_FORMAT_S8_Z24) {
+ for (k = 0; k < width; k++) {
+ /* Note: put MSByte of 24-bit value into LSByte */
+ dest[k] = (dest[k] << 8) | ((dest[k] >> 16) & 0xff);
+ }
+ }
+ else {
+ for (k = 0; k < width; k++) {
+ /* Note: fill in LSByte by replication */
+ dest[k] = dest[k] | ((dest[k] >> 8) & 0xff);
+ }
}
}
}