From 2e1d70b9e03ca3f1c6185b54010bc9e47e0a0d0c Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Tue, 10 Oct 2017 15:54:50 +0200 Subject: opengl: add flipping vertex shader 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 Message-id: 20171010135453.6704-4-kraxel@redhat.com --- ui/shader/texture-blit-flip.vert | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 ui/shader/texture-blit-flip.vert (limited to 'ui/shader') diff --git a/ui/shader/texture-blit-flip.vert b/ui/shader/texture-blit-flip.vert new file mode 100644 index 0000000..ba081fa --- /dev/null +++ b/ui/shader/texture-blit-flip.vert @@ -0,0 +1,10 @@ + +#version 300 es + +in vec2 in_position; +out vec2 ex_tex_coord; + +void main(void) { + gl_Position = vec4(in_position, 0.0, 1.0); + ex_tex_coord = vec2(1.0 + in_position.x, 1.0 + in_position.y) * 0.5; +} -- cgit v1.1