andreacavalli/xserver-multidpi
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Fixed a1 bug.

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It seems that mesa has bugs when uploading bitmap to texture.
We switch to convert bitmap to a8 format and then upload the
a8 texture.

Also added a helper routine to dump 1bpp pixmap.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
This commit is contained in:
Zhigang Gong 2012-04-26 18:28:17 +08:00 committed by Eric Anholt
parent 9f53cc1c33
commit 540846204c
2 changed files with 29 additions and 4 deletions
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3
glamor/glamor_pixmap.c
View File

@ -435,8 +435,7 @@ _glamor_upload_bits_to_pixmap_texture(PixmapPtr pixmap, GLenum format, GLenum ty
if (bits == NULL)
goto ready_to_upload;
if (glamor_priv->gl_flavor == GLAMOR_GL_ES2
&& revert > REVERT_NORMAL) {
if (revert > REVERT_NORMAL) {
/* XXX if we are restoring the pixmap, then we may not need to allocate
* new buffer */
void *converted_bits;

30
glamor/glamor_utils.h
View File

@ -241,6 +241,7 @@ gl_iformat_for_depth(int depth, GLenum * format)
{
switch (depth) {
#ifndef GLAMOR_GLES2
case 1:
case 8:
*format = GL_ALPHA;
break;
@ -286,6 +287,9 @@ format_for_pixmap(PixmapPtr pixmap)
* Map picture's format to the correct gl texture format and type.
* no_alpha is used to indicate whehter we need to wire alpha to 1.
*
* Although opengl support A1/GL_BITMAP, we still don't use it
* here, it seems that mesa has bugs when uploading a A1 bitmap.
*
* Return 0 if find a matched texture type. Otherwise return -1.
**/
#ifndef GLAMOR_GLES2
@ -304,8 +308,9 @@ glamor_get_tex_format_type_from_pictformat(PictFormatShort format,
*swap_rb = is_upload ? SWAP_NONE_UPLOADING : SWAP_NONE_DOWNLOADING;
switch (format) {
case PICT_a1:
*tex_format = GL_COLOR_INDEX;
*tex_type = GL_BITMAP;
*tex_format = GL_ALPHA;
*tex_type = GL_UNSIGNED_BYTE;
*revert = is_upload ? REVERT_UPLOADING_A1 : REVERT_DOWNLOADING_A1;
break;
case PICT_b8g8r8x8:
*no_alpha = 1;
@ -730,6 +735,24 @@ inline static Bool glamor_tex_format_is_readable(GLenum format)
}
static inline void _glamor_dump_pixmap_bits(PixmapPtr pixmap, int x, int y, int w, int h)
{
int i,j;
unsigned char * p = pixmap->devPrivate.ptr;
int stride = pixmap->devKind;
p = p + y * stride + x;
for (i = 0; i < h; i++)
{
ErrorF("line %3d: ", i);
for(j = 0; j < w; j++)
ErrorF("%2d ", (p[j/8] & (1 << (j%8)))>>(j%8));
p += stride;
ErrorF("\n");
}
}
static inline void _glamor_dump_pixmap_byte(PixmapPtr pixmap, int x, int y, int w, int h)
{
int i,j;
@ -803,6 +826,9 @@ static inline void glamor_dump_pixmap(PixmapPtr pixmap, int x, int y, int w, int
case 32:
_glamor_dump_pixmap_word(pixmap, x, y, w, h);
break;
case 1:
_glamor_dump_pixmap_bits(pixmap, x, y, w, h);
break;
default:
ErrorF("dump depth %d, not implemented.\n", pixmap->drawable.depth);
}