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Add support for flipped video to new video renderer.

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Originally committed to SVN as r3617.
This commit is contained in:
Thomas Goyne 2009-10-05 20:50:04 +00:00
parent c9bc025bb2
commit 404e6cf081
1 changed files with 10 additions and 4 deletions
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14
aegisub/src/video_out_gl.cpp
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@ -233,11 +233,17 @@ void VideoOutGL::DisplayFrame(AegiVideoFrame frame, int sw, int sh) {
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
if (GLenum err = glGetError()) throw VideoOutOpenGLException(L"glColor4f", err);
float top = 0.0f;
float bottom = ti.texH;
if (frame.flipped) {
top = ti.texH;
bottom = 0.0f;
}
glBegin(GL_QUADS);
glTexCoord2f(0.0, 0.0); glVertex2f(destX, destY);
glTexCoord2f(ti.texW, 0.0); glVertex2f(destX + destW, destY);
glTexCoord2f(ti.texW, ti.texH); glVertex2f(destX + destW, destY + destH);
glTexCoord2f(0.0, ti.texH); glVertex2f(destX, destY + destH);
glTexCoord2f(0.0f, top); glVertex2f(destX, destY);
glTexCoord2f(ti.texW, top); glVertex2f(destX + destW, destY);
glTexCoord2f(ti.texW, bottom); glVertex2f(destX + destW, destY + destH);
glTexCoord2f(0.0f, bottom); glVertex2f(destX, destY + destH);
glEnd();
if (GLenum err = glGetError()) throw VideoOutOpenGLException(L"GL_QUADS", err);
}