diff options
Diffstat (limited to 'src/mesa/state_tracker/st_cb_clear.c')
| -rw-r--r-- | src/mesa/state_tracker/st_cb_clear.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/src/mesa/state_tracker/st_cb_clear.c b/src/mesa/state_tracker/st_cb_clear.c index bc3055c3fdf..b6cea161634 100644 --- a/src/mesa/state_tracker/st_cb_clear.c +++ b/src/mesa/state_tracker/st_cb_clear.c @@ -148,12 +148,18 @@ draw_quad(GLcontext *ctx, { struct st_context *st = ctx->st; struct pipe_context *pipe = st->pipe; + const GLuint max_slots = 1024 / sizeof(st->clear.vertices); GLuint i; void *buf; + if (st->clear.vbuf_slot >= max_slots) { + pipe_buffer_reference(pipe->screen, &st->clear.vbuf, NULL); + st->clear.vbuf_slot = 0; + } + if (!st->clear.vbuf) { st->clear.vbuf = pipe_buffer_create(pipe->screen, 32, PIPE_BUFFER_USAGE_VERTEX, - sizeof(st->clear.vertices)); + max_slots * sizeof(st->clear.vertices)); } /* positions */ @@ -181,14 +187,23 @@ draw_quad(GLcontext *ctx, /* put vertex data into vbuf */ buf = pipe_buffer_map(pipe->screen, st->clear.vbuf, PIPE_BUFFER_USAGE_CPU_WRITE); - memcpy(buf, st->clear.vertices, sizeof(st->clear.vertices)); + + memcpy((char *)buf + st->clear.vbuf_slot * sizeof(st->clear.vertices), + st->clear.vertices, + sizeof(st->clear.vertices)); + pipe_buffer_unmap(pipe->screen, st->clear.vbuf); /* draw */ - util_draw_vertex_buffer(pipe, st->clear.vbuf, + util_draw_vertex_buffer(pipe, + st->clear.vbuf, + st->clear.vbuf_slot * sizeof(st->clear.vertices), PIPE_PRIM_TRIANGLE_FAN, 4, /* verts */ 2); /* attribs/vert */ + + /* Increment slot */ + st->clear.vbuf_slot++; } @@ -508,6 +523,16 @@ clear_depth_stencil_buffer(GLcontext *ctx, struct gl_renderbuffer *rb) } +void st_flush_clear( struct st_context *st ) +{ + /* Release vertex buffer to avoid synchronous rendering if we were + * to map it in the next frame. + */ + pipe_buffer_reference(st->pipe->screen, &st->clear.vbuf, NULL); + st->clear.vbuf_slot = 0; +} + + /** * Called via ctx->Driver.Clear() |