On Tue, Aug 25, 2015 at 1:04 AM, Brian Paul <bri...@vmware.com> wrote:
> Mesa and gallium don't have a complete set of matching 3-component
> texture formats. For example, 8-bit sRGB unorm. To fully support
> the GL_ARB_copy_image extension we need to have support for all of
> these formats: RGB8_UNORM, RGB8_SNORM, RGB8_SRGB, RGB8_UINT, and
> RGB8_SINT using the same component order. Since we don't have that,
> disable the 3-component formats for now.
> ---
> src/gallium/drivers/softpipe/sp_screen.c | 25 +++++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/src/gallium/drivers/softpipe/sp_screen.c
> b/src/gallium/drivers/softpipe/sp_screen.c
> index aeef8e6..24d79f1 100644
> --- a/src/gallium/drivers/softpipe/sp_screen.c
> +++ b/src/gallium/drivers/softpipe/sp_screen.c
> @@ -360,6 +360,31 @@ softpipe_is_format_supported( struct pipe_screen *screen,
> return FALSE;
> }
>
> + if ((bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW)) &&
> + ((bind & PIPE_BIND_DISPLAY_TARGET) == 0)) {
> + if (format == PIPE_FORMAT_R8G8B8_UINT ||
> + format == PIPE_FORMAT_R8G8B8_SINT ||
> + format == PIPE_FORMAT_R8G8B8_UNORM ||
> + format == PIPE_FORMAT_R16G16B16_UINT ||
> + format == PIPE_FORMAT_R16G16B16_SINT ||
> + format == PIPE_FORMAT_R16G16B16_UNORM ||
> + format == PIPE_FORMAT_R16G16B16_FLOAT ||
> + format == PIPE_FORMAT_R32G32B32_UINT ||
> + format == PIPE_FORMAT_R32G32B32_SINT ||
> + format == PIPE_FORMAT_R32G32B32_UNORM ||
> + format == PIPE_FORMAT_R32G32B32_FLOAT) {
For simpler code and keeping TBO support:
desc->is_array && desc->nr_channels == 3 && target != PIPE_BUFFER
where desc = util_format_description(format)
Marek
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