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st/mesa: fix glCopyPixels(GL_STENCIL_INDEX) inverted position

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If the renderbuffer orientation is Y=0=TOP we need to invert the dstY
position.
This commit is contained in:
Brian Paul 2009-09-03 14:39:53 -06:00
parent e79054cc40
commit c3a0624ef0
1 changed files with 4 additions and 0 deletions
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4
src/mesa/state_tracker/st_cb_drawpixels.c
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@ -842,6 +842,10 @@ copy_stencil_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
else
usage = PIPE_TRANSFER_WRITE;
if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
dsty = rbDraw->Base.Height - dsty - height;
}
ptDraw = st_cond_flush_get_tex_transfer(st_context(ctx),
rbDraw->texture, 0, 0, 0,
usage, dstx, dsty,