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radeonsi: fix unaligned clear_buffer fallback

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This is unreachable currently, but it will be used by unaligned 8-bit and
16-bit fills.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák 2015-11-06 23:06:47 +01:00
parent 7f1e34e6c8
commit 65d0c558d5
1 changed files with 8 additions and 6 deletions
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14
src/gallium/drivers/radeonsi/si_cp_dma.c
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@ -176,12 +176,14 @@ static void si_clear_buffer(struct pipe_context *ctx, struct pipe_resource *dst,
/* Fallback for unaligned clears. */
if (offset % 4 != 0 || size % 4 != 0) {
uint32_t *map = sctx->b.ws->buffer_map(r600_resource(dst)->cs_buf,
sctx->b.rings.gfx.cs,
PIPE_TRANSFER_WRITE);
size /= 4;
for (unsigned i = 0; i < size; i++)
*map++ = value;
uint8_t *map = sctx->b.ws->buffer_map(r600_resource(dst)->cs_buf,
sctx->b.rings.gfx.cs,
PIPE_TRANSFER_WRITE);
map += offset;
for (unsigned i = 0; i < size; i++) {
unsigned byte_within_dword = (offset + i) % 4;
*map++ = (value >> (byte_within_dword * 8)) & 0xff;
}
return;
}