On 03/14/2013 12:45 PM, Marek Olšák wrote:
I'll need both new functions for later. For now, it consolidates the code for determining what the transfer ops should be and makes it a little bit smarter. --- src/mesa/main/readpix.c | 94 +++++++++++++++++++++++++++++++++++++---------- 1 file changed, 74 insertions(+), 20 deletions(-)diff --git a/src/mesa/main/readpix.c b/src/mesa/main/readpix.c index 2f130ae..e6d0ecd 100644 --- a/src/mesa/main/readpix.c +++ b/src/mesa/main/readpix.c @@ -41,6 +41,73 @@ /** + * Return true if the conversion L=R+G+B is needed. + */ +static GLboolean +need_rgb_to_luminance_conversion(gl_format texFormat, GLenum format) +{ + GLenum baseTexFormat = _mesa_get_format_base_format(texFormat); + + return (baseTexFormat == GL_RG || + baseTexFormat == GL_RGB || + baseTexFormat == GL_RGBA)&& + (format == GL_LUMINANCE || format == GL_LUMINANCE_ALPHA); +} + + +/** + * Return transfer op flags for this ReadPixels operation. + */ +static GLbitfield +get_readpixels_transfer_ops(struct gl_context *ctx, gl_format texFormat,
const *ctx? [...] Reviewed-by: Brian Paul <bri...@vmware.com> _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
