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glmemory: take subsampling into account for rectangle textures

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Rectangle textures don't use normalized coordinates so subsampling needs to be
factored in explicitly.

Fixes YUV => RGB conversion for rectangle textures.
This commit is contained in:
Alessandro Decina 2015-12-10 12:33:52 +11:00 committed by Tim-Philipp Müller
parent e8f966dcab
commit fa1c4e552c
1 changed files with 12 additions and 0 deletions
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12
gst-libs/gst/gl/gstglmemory.c
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@ -632,6 +632,18 @@ _calculate_unpack_length (GstGLMemory * gl_mem, GstGLContext * context)
}
}
}
if (gl_mem->tex_target == GST_GL_TEXTURE_TARGET_RECTANGLE) {
guint w_sub =
GST_VIDEO_FORMAT_INFO_W_SUB (gl_mem->info.finfo, gl_mem->plane);
guint h_sub =
GST_VIDEO_FORMAT_INFO_H_SUB (gl_mem->info.finfo, gl_mem->plane);
if (w_sub)
gl_mem->tex_scaling[0] /= (1 << w_sub);
if (h_sub)
gl_mem->tex_scaling[1] /= (1 << h_sub);
}
}
static guint