diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_draw_quad.c')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_draw_quad.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_draw_quad.c b/mesalib/src/gallium/auxiliary/util/u_draw_quad.c index 590fa0c36..469c87498 100644 --- a/mesalib/src/gallium/auxiliary/util/u_draw_quad.c +++ b/mesalib/src/gallium/auxiliary/util/u_draw_quad.c @@ -69,6 +69,27 @@ util_draw_vertex_buffer(struct pipe_context *pipe, } +/** + * Draw a simple vertex buffer / primitive. + * Limited to float[4] vertex attribs, tightly packed. + */ +void +util_draw_user_vertex_buffer(struct cso_context *cso, void *buffer, + uint prim_type, uint num_verts, uint num_attribs) +{ + struct pipe_vertex_buffer vbuffer = {0}; + + assert(num_attribs <= PIPE_MAX_ATTRIBS); + + vbuffer.user_buffer = buffer; + vbuffer.stride = num_attribs * 4 * sizeof(float); /* vertex size */ + + /* note: vertex elements already set by caller */ + + cso_set_vertex_buffers(cso, 1, &vbuffer); + cso_draw_arrays(cso, prim_type, 0, num_verts); +} + /** * Draw screen-aligned textured quad. @@ -118,10 +139,11 @@ util_draw_texquad(struct pipe_context *pipe, struct cso_context *cso, v[28] = 0.0; v[29] = 1.0; - vbuf = pipe_user_buffer_create(pipe->screen, v, vertexBytes, - PIPE_BIND_VERTEX_BUFFER); + vbuf = pipe_buffer_create(pipe->screen, PIPE_BIND_VERTEX_BUFFER, + PIPE_USAGE_STAGING, vertexBytes); if (!vbuf) goto out; + pipe_buffer_write(pipe, vbuf, 0, vertexBytes, v); util_draw_vertex_buffer(pipe, cso, vbuf, 0, PIPE_PRIM_TRIANGLE_FAN, 4, 2); |