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st/mesa: implement glBitmap unpacking from a PBO, for the cache path 

We weren't mapping the PBO when using the bitmap cache (but we had
the PBO code for the non-cache path.)

Fixes http://bugs.freedesktop.org/show_bug.cgi?id=61026

Note: This is a candidate for the stable branches.
This commit is contained in:
Brian Paul 2013-02-18 08:36:35 -07:00
parent 5da967aff5
commit 63c30d7e4f
1 changed files with 11 additions and 2 deletions
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13
src/mesa/state_tracker/st_cb_bitmap.c
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@ -675,11 +675,12 @@ st_flush_bitmap_cache(struct st_context *st)
* \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc.
*/
static GLboolean
accum_bitmap(struct st_context *st,
accum_bitmap(struct gl_context *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
const struct gl_pixelstore_attrib *unpack,
const GLubyte *bitmap )
{
struct st_context *st = ctx->st;
struct bitmap_cache *cache = st->bitmap.cache;
int px = -999, py = -999;
const GLfloat z = st->ctx->Current.RasterPos[2];
@ -729,9 +730,17 @@ accum_bitmap(struct st_context *st,
/* create the transfer if needed */
create_cache_trans(st);
/* PBO source... */
bitmap = _mesa_map_pbo_source(ctx, unpack, bitmap);
if (!bitmap) {
return FALSE;
}
unpack_bitmap(st, px, py, width, height, unpack, bitmap,
cache->buffer, BITMAP_CACHE_WIDTH);
_mesa_unmap_pbo_source(ctx, unpack);
return GL_TRUE; /* accumulated */
}
@ -764,7 +773,7 @@ st_Bitmap(struct gl_context *ctx, GLint x, GLint y,
semantic_indexes);
}
if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap))
if (UseBitmapCache && accum_bitmap(ctx, x, y, width, height, unpack, bitmap))
return;
pt = make_bitmap_texture(ctx, width, height, unpack, bitmap);