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st/dri: Use depth instead of bpp when communicating formats with the X server v3 

Some hardware can't reinterpret the format of hardware buffers and thus
the X server needs to know the format when the buffer is created.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Daenzer <michel@daenzer.net>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
This commit is contained in:
Thomas Hellstrom 2011-12-06 10:16:13 +01:00
parent 6781fd05e9
commit 576161289d
1 changed files with 38 additions and 3 deletions
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41
src/gallium/state_trackers/dri/drm/dri2.c
View File

@ -104,7 +104,7 @@ dri2_drawable_get_buffers(struct dri_drawable *drawable,
for (i = 0; i < *count; i++) {
enum pipe_format format;
unsigned bind;
int att, bpp;
int att, depth;
dri_drawable_get_format(drawable, statts[i], &format, &bind);
if (format == PIPE_FORMAT_NONE)
@ -134,12 +134,47 @@ dri2_drawable_get_buffers(struct dri_drawable *drawable,
break;
}
bpp = util_format_get_blocksizebits(format);
/*
* In this switch statement we must support all formats that
* may occur as the stvis->color_format or
* stvis->depth_stencil_format.
*/
switch(format) {
case PIPE_FORMAT_B8G8R8A8_UNORM:
depth = 32;
break;
case PIPE_FORMAT_B8G8R8X8_UNORM:
depth = 24;
break;
case PIPE_FORMAT_B5G6R5_UNORM:
depth = 16;
break;
case PIPE_FORMAT_Z16_UNORM:
att = __DRI_BUFFER_DEPTH;
depth = 16;
break;
case PIPE_FORMAT_Z24X8_UNORM:
case PIPE_FORMAT_X8Z24_UNORM:
att = __DRI_BUFFER_DEPTH;
depth = 24;
break;
case PIPE_FORMAT_Z24_UNORM_S8_UINT:
case PIPE_FORMAT_S8_UINT_Z24_UNORM:
depth = 32;
break;
case PIPE_FORMAT_Z32_UNORM:
att = __DRI_BUFFER_DEPTH;
depth = 32;
break;
default:
depth = util_format_get_blocksizebits(format);
assert(!"Unexpected format in dri2_drawable_get_buffers()");
}
if (att >= 0) {
attachments[num_attachments++] = att;
if (with_format) {
attachments[num_attachments++] = bpp;
attachments[num_attachments++] = depth;
}
}
}