diff options
| author | Kenneth Graunke <[email protected]> | 2014-08-07 20:31:39 -0700 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2014-09-10 11:05:08 -0700 |
| commit | fdbabf22e183d478cd076215052fa877b125629b (patch) | |
| tree | b6f1989aa1497b08453be05a16c4e52ea842cdda /src/mesa/drivers/dri/i965/brw_draw_upload.c | |
| parent | c89306983c07e5a88c0d636267e5ccf263cb4213 (diff) | |
i965: Make gl_BaseVertex available in a buffer object.
This will be used for GL_ARB_shader_draw_parameters, as well as fixing
gl_VertexID, which is supposed to include gl_BaseVertex's value.
For indirect draws, we simply point at the indirect buffer; for normal
draws, we upload the value via the upload buffer.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_draw_upload.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_draw_upload.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c index 38b108751ce..37a65bcb3c9 100644 --- a/src/mesa/drivers/dri/i965/brw_draw_upload.c +++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c @@ -607,11 +607,21 @@ brw_prepare_vertices(struct brw_context *brw) void brw_prepare_shader_draw_parameters(struct brw_context *brw) { + int *gl_basevertex_value; if (brw->draw.indexed) { brw->draw.start_vertex_location += brw->ib.start_vertex_offset; brw->draw.base_vertex_location += brw->vb.start_vertex_bias; + gl_basevertex_value = &brw->draw.base_vertex_location; } else { brw->draw.start_vertex_location += brw->vb.start_vertex_bias; + gl_basevertex_value = &brw->draw.start_vertex_location; + } + + /* For non-indirect draws, upload gl_BaseVertex. */ + if (brw->vs.prog_data->uses_vertexid && brw->draw.draw_params_bo == NULL) { + intel_upload_data(brw, gl_basevertex_value, 4, 4, + &brw->draw.draw_params_bo, + &brw->draw.draw_params_offset); } } |