void r600_set_so_targets(struct pipe_context *ctx,
unsigned num_targets,
struct pipe_stream_output_target **targets,
unsigned append_bitmask)
{
struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
unsigned i;
/* Stop streamout. */
if (rctx->ctx.num_so_targets) {
r600_context_streamout_end(&rctx->ctx);
}
/* Set the new targets. */
for (i = 0; i < num_targets; i++) {
pipe_so_target_reference((struct pipe_stream_output_target**)&rctx->ctx.so_targets[i], targets[i]);
}
for (; i < rctx->ctx.num_so_targets; i++) {
pipe_so_target_reference((struct pipe_stream_output_target**)&rctx->ctx.so_targets[i], NULL);
}
rctx->ctx.num_so_targets = num_targets;
rctx->ctx.streamout_start = num_targets != 0;
rctx->ctx.streamout_append_bitmask = append_bitmask;
}
static void *r600_buffer_transfer_map(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
struct r600_resource *rbuffer = r600_resource(transfer->resource);
struct r600_context *rctx = (struct r600_context*)pipe;
uint8_t *data;
if (transfer->usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE &&
!(transfer->usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
assert(transfer->usage & PIPE_TRANSFER_WRITE);
/* Check if mapping this buffer would cause waiting for the GPU. */
if (rctx->ws->cs_is_buffer_referenced(rctx->cs, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
rctx->ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
unsigned i, mask;
/* Discard the buffer. */
pb_reference(&rbuffer->buf, NULL);
/* Create a new one in the same pipe_resource. */
/* XXX We probably want a different alignment for buffers and textures. */
r600_init_resource(rctx->screen, rbuffer, rbuffer->b.b.width0, 4096,
rbuffer->b.b.bind, rbuffer->b.b.usage);
/* We changed the buffer, now we need to bind it where the old one was bound. */
/* Vertex buffers. */
mask = rctx->vertex_buffer_state.enabled_mask;
while (mask) {
i = u_bit_scan(&mask);
if (rctx->vertex_buffer_state.vb[i].buffer == &rbuffer->b.b) {
rctx->vertex_buffer_state.dirty_mask |= 1 << i;
r600_vertex_buffers_dirty(rctx);
}
}
/* Streamout buffers. */
for (i = 0; i < rctx->num_so_targets; i++) {
if (rctx->so_targets[i]->b.buffer == &rbuffer->b.b) {
r600_context_streamout_end(rctx);
rctx->streamout_start = TRUE;
rctx->streamout_append_bitmask = ~0;
}
}
/* Constant buffers. */
r600_set_constants_dirty_if_bound(rctx, &rctx->vs_constbuf_state, rbuffer);
r600_set_constants_dirty_if_bound(rctx, &rctx->ps_constbuf_state, rbuffer);
}
}
#if 0 /* this is broken (see Bug 53130) */
else if ((transfer->usage & PIPE_TRANSFER_DISCARD_RANGE) &&
!(transfer->usage & PIPE_TRANSFER_UNSYNCHRONIZED) &&
rctx->screen->has_streamout &&
/* The buffer range must be aligned to 4. */
transfer->box.x % 4 == 0 && transfer->box.width % 4 == 0) {
assert(transfer->usage & PIPE_TRANSFER_WRITE);
/* Check if mapping this buffer would cause waiting for the GPU. */
if (rctx->ws->cs_is_buffer_referenced(rctx->cs, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
rctx->ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
/* Do a wait-free write-only transfer using a temporary buffer. */
struct r600_transfer *rtransfer = (struct r600_transfer*)transfer;
rtransfer->staging = (struct r600_resource*)
pipe_buffer_create(pipe->screen, PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STAGING, transfer->box.width);
return rctx->ws->buffer_map(rtransfer->staging->cs_buf, rctx->cs, PIPE_TRANSFER_WRITE);
}
}
#endif
data = rctx->ws->buffer_map(rbuffer->cs_buf, rctx->cs, transfer->usage);
if (!data)
return NULL;
return (uint8_t*)data + transfer->box.x;
}
static void *r600_buffer_transfer_map(struct pipe_context *ctx,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box,
struct pipe_transfer **ptransfer)
{
struct r600_context *rctx = (struct r600_context*)ctx;
struct r600_resource *rbuffer = r600_resource(resource);
uint8_t *data;
assert(box->x + box->width <= resource->width0);
if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE &&
!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
assert(usage & PIPE_TRANSFER_WRITE);
/* Check if mapping this buffer would cause waiting for the GPU. */
if (rctx->ws->cs_is_buffer_referenced(rctx->cs, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
rctx->ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
unsigned i, mask;
/* Discard the buffer. */
pb_reference(&rbuffer->buf, NULL);
/* Create a new one in the same pipe_resource. */
/* XXX We probably want a different alignment for buffers and textures. */
r600_init_resource(rctx->screen, rbuffer, rbuffer->b.b.width0, 4096,
rbuffer->b.b.bind, rbuffer->b.b.usage);
/* We changed the buffer, now we need to bind it where the old one was bound. */
/* Vertex buffers. */
mask = rctx->vertex_buffer_state.enabled_mask;
while (mask) {
i = u_bit_scan(&mask);
if (rctx->vertex_buffer_state.vb[i].buffer == &rbuffer->b.b) {
rctx->vertex_buffer_state.dirty_mask |= 1 << i;
r600_vertex_buffers_dirty(rctx);
}
}
/* Streamout buffers. */
for (i = 0; i < rctx->num_so_targets; i++) {
if (rctx->so_targets[i]->b.buffer == &rbuffer->b.b) {
r600_context_streamout_end(rctx);
rctx->streamout_start = TRUE;
rctx->streamout_append_bitmask = ~0;
}
}
/* Constant buffers. */
r600_set_constants_dirty_if_bound(rctx, rbuffer);
}
}
else if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&
!(usage & PIPE_TRANSFER_UNSYNCHRONIZED) &&
rctx->screen->has_streamout &&
/* The buffer range must be aligned to 4. */
box->x % 4 == 0 && box->width % 4 == 0) {
assert(usage & PIPE_TRANSFER_WRITE);
/* Check if mapping this buffer would cause waiting for the GPU. */
if (rctx->ws->cs_is_buffer_referenced(rctx->cs, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
rctx->ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
/* Do a wait-free write-only transfer using a temporary buffer. */
struct r600_resource *staging = (struct r600_resource*)
pipe_buffer_create(ctx->screen, PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STAGING,
box->width + (box->x % R600_MAP_BUFFER_ALIGNMENT));
data = rctx->ws->buffer_map(staging->cs_buf, rctx->cs, PIPE_TRANSFER_WRITE);
if (!data)
return NULL;
data += box->x % R600_MAP_BUFFER_ALIGNMENT;
return r600_buffer_get_transfer(ctx, resource, level, usage, box,
ptransfer, data, staging);
}
}
data = rctx->ws->buffer_map(rbuffer->cs_buf, rctx->cs, usage);
if (!data) {
return NULL;
}
data += box->x;
return r600_buffer_get_transfer(ctx, resource, level, usage, box,
ptransfer, data, NULL);
}