summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/softpipe/sp_prim_vbuf.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_prim_vbuf.c')
-rw-r--r--src/gallium/drivers/softpipe/sp_prim_vbuf.c45
1 files changed, 32 insertions, 13 deletions
diff --git a/src/gallium/drivers/softpipe/sp_prim_vbuf.c b/src/gallium/drivers/softpipe/sp_prim_vbuf.c
index 9cd5784e5b..d56eed80a4 100644
--- a/src/gallium/drivers/softpipe/sp_prim_vbuf.c
+++ b/src/gallium/drivers/softpipe/sp_prim_vbuf.c
@@ -60,6 +60,7 @@ struct softpipe_vbuf_render
struct softpipe_context *softpipe;
uint prim;
uint vertex_size;
+ uint vertex_buffer_size;
void *vertex_buffer;
};
@@ -80,26 +81,44 @@ sp_vbuf_get_vertex_info(struct vbuf_render *vbr)
}
-static void *
+static boolean
sp_vbuf_allocate_vertices(struct vbuf_render *vbr,
- ushort vertex_size, ushort nr_vertices)
+ ushort vertex_size, ushort nr_vertices)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
- assert(!cvbr->vertex_buffer);
- cvbr->vertex_buffer = align_malloc(vertex_size * nr_vertices, 16);
+ unsigned size = vertex_size * nr_vertices;
+
+ if (cvbr->vertex_buffer_size < size) {
+ align_free(cvbr->vertex_buffer);
+ cvbr->vertex_buffer = align_malloc(size, 16);
+ cvbr->vertex_buffer_size = size;
+ }
+
cvbr->vertex_size = vertex_size;
- return cvbr->vertex_buffer;
+ return cvbr->vertex_buffer != NULL;
}
-
static void
-sp_vbuf_release_vertices(struct vbuf_render *vbr, void *vertices,
- unsigned vertex_size, unsigned vertices_used)
+sp_vbuf_release_vertices(struct vbuf_render *vbr)
+{
+ /* keep the old allocation for next time */
+}
+
+static void *
+sp_vbuf_map_vertices(struct vbuf_render *vbr)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
- align_free(vertices);
- assert(vertices == cvbr->vertex_buffer);
- cvbr->vertex_buffer = NULL;
+ return cvbr->vertex_buffer;
+}
+
+static void
+sp_vbuf_unmap_vertices(struct vbuf_render *vbr,
+ ushort min_index,
+ ushort max_index )
+{
+ struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
+ assert( cvbr->vertex_buffer_size >= (max_index+1) * cvbr->vertex_size );
+ /* do nothing */
}
@@ -115,8 +134,6 @@ sp_vbuf_set_primitive(struct vbuf_render *vbr, unsigned prim)
setup_prepare( setup_ctx );
-
-
cvbr->prim = prim;
return TRUE;
@@ -394,6 +411,8 @@ sp_init_vbuf(struct softpipe_context *sp)
sp->vbuf_render->base.get_vertex_info = sp_vbuf_get_vertex_info;
sp->vbuf_render->base.allocate_vertices = sp_vbuf_allocate_vertices;
+ sp->vbuf_render->base.map_vertices = sp_vbuf_map_vertices;
+ sp->vbuf_render->base.unmap_vertices = sp_vbuf_unmap_vertices;
sp->vbuf_render->base.set_primitive = sp_vbuf_set_primitive;
sp->vbuf_render->base.draw = sp_vbuf_draw;
sp->vbuf_render->base.draw_arrays = sp_vbuf_draw_arrays;