r300-gallium: Always do VTE, never software viewport.

This makes glxgears draw properly with SW TCL.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/gallium/drivers/r300/r300_context.c b/src/gallium/drivers/r300/r300_context.c
index a1cdea30dee..21c0fe2b803 100644
--- a/src/gallium/drivers/r300/r300_context.c
+++ b/src/gallium/drivers/r300/r300_context.c
@@ -145,8 +145,15 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen,
     r300->context.is_texture_referenced = r300_is_texture_referenced;
     r300->context.is_buffer_referenced = r300_is_buffer_referenced;
 
+    /* Create a Draw. This is used for vert collation and SW TCL. */
     r300->draw = draw_create();
+    /* Enable our renderer. */
     draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
+    /* Tell Draw that we can always do non-UCP clipping. */
+    draw_set_driver_clipping(r300->draw, TRUE);
+    /* Force Draw to never do viewport transform, since (again) we can do
+     * transform in hardware, always. */
+    draw_set_viewport_state(r300->draw, &r300_viewport_identity);
 
     r300->blend_color_state = CALLOC_STRUCT(r300_blend_color_state);
     r300->rs_block = CALLOC_STRUCT(r300_rs_block);