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dri: Add config attributes for color channel shift

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The existing mask attributes can only support up to 32 bpp. Introduce
per-channel SHIFT attributes that indicate how many bits, from lsb towards
msb, the bit field is offset. A shift of -1 will indicate that there is no
bit field set for the channel.

As old loaders will still be looking for masks, we set the masks to 0 for
any formats wider than 32 bpp.

Signed-off-by: Kevin Strasser <kevin.strasser@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
This commit is contained in:
Kevin Strasser
2019-01-24 16:11:11 -08:00
committed by Adam Jackson
parent 9328e7c04c
commit 5a747306ce
4 changed files with 61 additions and 23 deletions
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6
include/GL/internal/dri_interface.h
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@@ -809,7 +809,11 @@ struct __DRIuseInvalidateExtensionRec {
#define __DRI_ATTRIB_YINVERTED 47
#define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE 48
#define __DRI_ATTRIB_MUTABLE_RENDER_BUFFER 49 /* EGL_MUTABLE_RENDER_BUFFER_BIT_KHR */
#define __DRI_ATTRIB_MAX 50
#define __DRI_ATTRIB_RED_SHIFT 50
#define __DRI_ATTRIB_GREEN_SHIFT 51
#define __DRI_ATTRIB_BLUE_SHIFT 52
#define __DRI_ATTRIB_ALPHA_SHIFT 53
#define __DRI_ATTRIB_MAX 54
/* __DRI_ATTRIB_RENDER_TYPE */
#define __DRI_ATTRIB_RGBA_BIT 0x01