diff options
author | José Fonseca <jfonseca@vmware.com> | 2009-03-27 19:50:15 +0000 |
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committer | José Fonseca <jfonseca@vmware.com> | 2009-03-27 19:51:33 +0000 |
commit | e0a55dc9dae39384c18dd275081c24b7dce14eeb (patch) | |
tree | f10b226fe1d8498dc3f75bf80dd1c58997ff5742 /src/mesa/state_tracker/st_cb_readpixels.c | |
parent | 2431a027c197c7172d6769eb616d4301cc6a0bca (diff) |
mesa: Support Z24S8 wherever S8Z24 is supported.
Diffstat (limited to 'src/mesa/state_tracker/st_cb_readpixels.c')
-rw-r--r-- | src/mesa/state_tracker/st_cb_readpixels.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_cb_readpixels.c b/src/mesa/state_tracker/st_cb_readpixels.c index 2a4beccd90..ce7a8cda4e 100644 --- a/src/mesa/state_tracker/st_cb_readpixels.c +++ b/src/mesa/state_tracker/st_cb_readpixels.c @@ -420,6 +420,33 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, } } } + else if (trans->format == PIPE_FORMAT_Z24S8_UNORM || + trans->format == PIPE_FORMAT_Z24X8_UNORM) { + if (format == GL_DEPTH_COMPONENT) { + for (i = 0; i < height; i++) { + GLuint ztemp[MAX_WIDTH]; + GLfloat zfloat[MAX_WIDTH]; + const double scale = 1.0 / ((1 << 24) - 1); + pipe_get_tile_raw(trans, 0, y, width, 1, ztemp, 0); + y += yStep; + for (j = 0; j < width; j++) { + zfloat[j] = (float) (scale * ((ztemp[j] >> 8) & 0xffffff)); + } + _mesa_pack_depth_span(ctx, width, dst, type, + zfloat, &clippedPacking); + dst += dstStride; + } + } + else { + /* untested, but simple: */ + assert(format == GL_DEPTH_STENCIL_EXT); + for (i = 0; i < height; i++) { + pipe_get_tile_raw(trans, 0, y, width, 1, dst, 0); + y += yStep; + dst += dstStride; + } + } + } else if (trans->format == PIPE_FORMAT_Z16_UNORM) { for (i = 0; i < height; i++) { GLushort ztemp[MAX_WIDTH]; |