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intel: Copy data from card memory back to backing store when mapping. 

Fixes http://bugs.freedesktop.org/show_bug.cgi?id=17705
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Xiang, Haihao 2008-09-27 11:01:24 +08:00
parent 2db8e0c8ef
commit 073cb5ee1d
1 changed files with 7 additions and 2 deletions
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9
libdrm/intel/intel_bufmgr_fake.c
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@ -448,9 +448,9 @@ static void free_block(dri_bufmgr_fake *bufmgr_fake, struct block *block)
return; return;
bo_fake = (dri_bo_fake *)block->bo; bo_fake = (dri_bo_fake *)block->bo;
if (!(bo_fake->flags & BM_NO_BACKING_STORE) && (bo_fake->card_dirty == 1)) { if (!(bo_fake->flags & (BM_PINNED | BM_NO_BACKING_STORE)) && (bo_fake->card_dirty == 1)) {
memcpy(bo_fake->backing_store, block->virtual, block->bo->size); memcpy(bo_fake->backing_store, block->virtual, block->bo->size);
bo_fake->card_dirty = 1; bo_fake->card_dirty = 0;
bo_fake->dirty = 1; bo_fake->dirty = 1;
} }
@ -944,6 +944,11 @@ dri_fake_bo_map(dri_bo *bo, int write_enable)
if (bo_fake->backing_store == 0) if (bo_fake->backing_store == 0)
alloc_backing_store(bo); alloc_backing_store(bo);
if ((bo_fake->card_dirty == 1) && bo_fake->block) {
memcpy(bo_fake->backing_store, bo_fake->block->virtual, bo_fake->block->bo->size);
bo_fake->card_dirty = 0;
}
bo->virtual = bo_fake->backing_store; bo->virtual = bo_fake->backing_store;
} }
} }