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2017-10-17opengl: add flipping vertex shaderGerd Hoffmann1-0/+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
2015-05-05console-gl: add opengl rendering helper functionsGerd Hoffmann2-0/+20
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>