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radeonsi: implement uploading zero-stride vertex attribs

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This is the only kind of user buffer we can get with the GL core profile.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák
2017-02-11 13:12:22 +01:00
parent b8f3b00742
commit b5eb38f071
1 changed files with 22 additions and 7 deletions
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src/gallium/drivers/radeonsi/si_state.c
+22 -7
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@@ -34,6 +34,7 @@
#include "util/u_format_s3tc.h"
#include "util/u_memory.h"
#include "util/u_resource.h"
#include "util/u_upload_mgr.h"
/* Initialize an external atom (owned by ../radeon). */
static void
@@ -3514,14 +3515,28 @@ static void si_set_vertex_buffers(struct pipe_context *ctx,
for (i = 0; i < count; i++) {
const struct pipe_vertex_buffer *src = buffers + i;
struct pipe_vertex_buffer *dsti = dst + i;
struct pipe_resource *buf = src->buffer;
pipe_resource_reference(&dsti->buffer, buf);
dsti->buffer_offset = src->buffer_offset;
dsti->stride = src->stride;
r600_context_add_resource_size(ctx, buf);
if (buf)
r600_resource(buf)->bind_history |= PIPE_BIND_VERTEX_BUFFER;
if (unlikely(src->user_buffer)) {
/* Zero-stride attribs only. */
assert(src->stride == 0);
/* Assume the attrib has 4 dwords like the vbo
* module. This is also a good upper bound. */
u_upload_data(sctx->b.b.stream_uploader, 0, 16, 16,
src->user_buffer,
&dsti->buffer_offset,
&dsti->buffer);
dsti->stride = 0;
} else {
struct pipe_resource *buf = src->buffer;
pipe_resource_reference(&dsti->buffer, buf);
dsti->buffer_offset = src->buffer_offset;
dsti->stride = src->stride;
r600_context_add_resource_size(ctx, buf);
if (buf)
r600_resource(buf)->bind_history |= PIPE_BIND_VERTEX_BUFFER;
}
}
} else {
for (i = 0; i < count; i++) {