#include "util/u_inlines.h"
#include "util/u_prim.h"
#include "util/u_time.h"
-#include "util/u_upload_mgr.h"
#include "indices/u_indices.h"
#include "svga_hw_reg.h"
#include "svga_resource_buffer.h"
-/**
- * Determine the ranges to upload for the user-buffers referenced
- * by the next draw command.
- *
- * TODO: It might be beneficial to support multiple ranges. In that case,
- * the struct svga_buffer::uploaded member should be made an array or a
- * list, since we need to account for the possibility that different ranges
- * may be uploaded to different hardware buffers chosen by the utility
- * upload manager.
- */
-static void
-svga_user_buffer_range(struct svga_context *svga,
- unsigned start,
- unsigned count,
- unsigned instance_count)
-{
- const struct pipe_vertex_element *ve = svga->curr.velems->velem;
- unsigned i;
-
- /*
- * Release old uploaded range (if not done already) and
- * initialize new ranges.
- */
-
- for (i=0; i < svga->curr.velems->count; i++) {
- struct pipe_vertex_buffer *vb =
- &svga->curr.vb[ve[i].vertex_buffer_index];
-
- if (vb->buffer && svga_buffer_is_user_buffer(vb->buffer)) {
- struct svga_buffer *buffer = svga_buffer(vb->buffer);
-
- pipe_resource_reference(&buffer->uploaded.buffer, NULL);
- buffer->uploaded.start = ~0;
- buffer->uploaded.end = 0;
- }
- }
-
- for (i=0; i < svga->curr.velems->count; i++) {
- struct pipe_vertex_buffer *vb =
- &svga->curr.vb[ve[i].vertex_buffer_index];
-
- if (vb->buffer && svga_buffer_is_user_buffer(vb->buffer)) {
- struct svga_buffer *buffer = svga_buffer(vb->buffer);
- unsigned first, size;
- unsigned instance_div = ve[i].instance_divisor;
- unsigned elemSize = util_format_get_blocksize(ve[i].src_format);
-
- svga->dirty |= SVGA_NEW_VBUFFER;
-
- if (instance_div) {
- first = ve[i].src_offset;
- count = (instance_count + instance_div - 1) / instance_div;
- size = vb->stride * (count - 1) + elemSize;
- } else {
- first = vb->stride * start + ve[i].src_offset;
- size = vb->stride * (count - 1) + elemSize;
- }
-
- buffer->uploaded.start = MIN2(buffer->uploaded.start, first);
- buffer->uploaded.end = MAX2(buffer->uploaded.end, first + size);
- }
- }
-}
-
-
-/**
- * svga_upload_user_buffers - upload parts of user buffers
- *
- * This function streams a part of a user buffer to hw and fills
- * svga_buffer::uploaded with information on the upload.
- */
-static int
-svga_upload_user_buffers(struct svga_context *svga,
- unsigned start,
- unsigned count,
- unsigned instance_count)
-{
- const struct pipe_vertex_element *ve = svga->curr.velems->velem;
- unsigned i;
- int ret;
-
- svga_user_buffer_range(svga, start, count, instance_count);
-
- for (i=0; i < svga->curr.velems->count; i++) {
- struct pipe_vertex_buffer *vb =
- &svga->curr.vb[ve[i].vertex_buffer_index];
-
- if (vb->buffer && svga_buffer_is_user_buffer(vb->buffer)) {
- struct svga_buffer *buffer = svga_buffer(vb->buffer);
-
- /*
- * Check if already uploaded. Otherwise go ahead and upload.
- */
-
- if (buffer->uploaded.buffer)
- continue;
-
- ret = u_upload_buffer( svga->upload_vb,
- 0,
- buffer->uploaded.start,
- buffer->uploaded.end - buffer->uploaded.start,
- &buffer->b.b,
- &buffer->uploaded.offset,
- &buffer->uploaded.buffer);
-
- if (ret)
- return ret;
-
- if (0)
- debug_printf("%s: %d: orig buf %p upl buf %p ofs %d sofs %d"
- " sz %d\n",
- __FUNCTION__,
- i,
- buffer,
- buffer->uploaded.buffer,
- buffer->uploaded.offset,
- buffer->uploaded.start,
- buffer->uploaded.end - buffer->uploaded.start);
-
- vb->buffer_offset = buffer->uploaded.offset;
- }
- }
-
- return PIPE_OK;
-}
-
-
-/**
- * svga_release_user_upl_buffers - release uploaded parts of user buffers
- *
- * This function releases the hw copy of the uploaded fraction of the
- * user-buffer. It's important to do this as soon as all draw calls
- * affecting the uploaded fraction are issued, as this allows for
- * efficient reuse of the hardware surface backing the uploaded fraction.
- *
- * svga_buffer::source_offset is set to 0, and svga_buffer::uploaded::buffer
- * is set to 0.
- */
-static void
-svga_release_user_upl_buffers(struct svga_context *svga)
-{
- unsigned i;
- unsigned nr;
-
- nr = svga->curr.num_vertex_buffers;
-
- for (i = 0; i < nr; ++i) {
- struct pipe_vertex_buffer *vb = &svga->curr.vb[i];
-
- if (vb->buffer && svga_buffer_is_user_buffer(vb->buffer)) {
- struct svga_buffer *buffer = svga_buffer(vb->buffer);
-
- /* The buffer_offset is relative to the uploaded buffer.
- * Since we're discarding that buffer we need to reset this offset
- * so it's not inadvertantly applied to a subsequent draw.
- *
- * XXX a root problem here is that the svga->curr.vb[] information
- * is getting set both by gallium API calls and by code in
- * svga_upload_user_buffers(). We should instead have two copies
- * of the vertex buffer information and choose between as needed.
- */
- vb->buffer_offset = 0;
-
- buffer->uploaded.start = ~0;
- buffer->uploaded.end = 0;
- if (buffer->uploaded.buffer)
- pipe_resource_reference(&buffer->uploaded.buffer, NULL);
- }
- }
-}
-
-
-
static enum pipe_error
retry_draw_range_elements( struct svga_context *svga,
struct pipe_resource *index_buffer,
svga->curr.rast->templ.flatshade,
svga->curr.rast->templ.flatshade_first );
- ret = svga_upload_user_buffers( svga, min_index + index_bias,
- max_index - min_index + 1, instance_count );
- if (ret != PIPE_OK)
- goto retry;
-
ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
if (ret != PIPE_OK)
goto retry;
svga->curr.rast->templ.flatshade,
svga->curr.rast->templ.flatshade_first );
- ret = svga_upload_user_buffers( svga, start, count, instance_count );
-
- if (ret != PIPE_OK)
- goto retry;
-
ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
if (ret != PIPE_OK)
goto retry;
/* XXX: Silence warnings, do something sensible here? */
(void)ret;
- svga_release_user_upl_buffers( svga );
-
if (SVGA_DEBUG & DEBUG_FLUSH) {
svga_hwtnl_flush_retry( svga );
svga_context_flush(svga, NULL);
projects / mesa.git / blobdiff