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* opengl: add flipping vertex shaderGerd Hoffmann2017-10-171-0/+10
| | | | | | | | Add vertex shader which flips the texture upside down while blitting it. Add argument to qemu_gl_run_texture_blit() to enable flipping. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20171010135453.6704-4-kraxel@redhat.com
* console-gl: add opengl rendering helper functionsGerd Hoffmann2015-05-052-0/+20
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>