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-rw-r--r--src/gallium/drivers/r300/r300_context.c4
-rw-r--r--src/gallium/drivers/r300/r300_emit.c36
2 files changed, 21 insertions, 19 deletions
diff --git a/src/gallium/drivers/r300/r300_context.c b/src/gallium/drivers/r300/r300_context.c
index 21c0fe2b803..233a32b53c5 100644
--- a/src/gallium/drivers/r300/r300_context.c
+++ b/src/gallium/drivers/r300/r300_context.c
@@ -149,8 +149,8 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen,
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);
+ /* Disable Draw's clipping if TCL is present. */
+ draw_set_driver_clipping(r300->draw, r300_screen(screen)->caps->has_tcl);
/* 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);
diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c
index 818880cd387..8b9fcd75e2b 100644
--- a/src/gallium/drivers/r300/r300_emit.c
+++ b/src/gallium/drivers/r300/r300_emit.c
@@ -63,25 +63,27 @@ void r300_emit_clip_state(struct r300_context* r300,
struct r300_screen* r300screen = r300_screen(r300->context.screen);
CS_LOCALS(r300);
- if (!r300screen->caps->has_tcl) {
- return;
- }
-
- BEGIN_CS(5 + (6 * 4));
- OUT_CS_REG(R300_VAP_PVS_VECTOR_INDX_REG,
- (r300screen->caps->is_r500 ?
- R500_PVS_UCP_START : R300_PVS_UCP_START));
- OUT_CS_ONE_REG(R300_VAP_PVS_UPLOAD_DATA, 6 * 4);
- for (i = 0; i < 6; i++) {
- OUT_CS_32F(clip->ucp[i][0]);
- OUT_CS_32F(clip->ucp[i][1]);
- OUT_CS_32F(clip->ucp[i][2]);
- OUT_CS_32F(clip->ucp[i][3]);
+ if (r300screen->caps->has_tcl) {
+ BEGIN_CS(5 + (6 * 4));
+ OUT_CS_REG(R300_VAP_PVS_VECTOR_INDX_REG,
+ (r300screen->caps->is_r500 ?
+ R500_PVS_UCP_START : R300_PVS_UCP_START));
+ OUT_CS_ONE_REG(R300_VAP_PVS_UPLOAD_DATA, 6 * 4);
+ for (i = 0; i < 6; i++) {
+ OUT_CS_32F(clip->ucp[i][0]);
+ OUT_CS_32F(clip->ucp[i][1]);
+ OUT_CS_32F(clip->ucp[i][2]);
+ OUT_CS_32F(clip->ucp[i][3]);
+ }
+ OUT_CS_REG(R300_VAP_CLIP_CNTL, ((1 << clip->nr) - 1) |
+ R300_PS_UCP_MODE_CLIP_AS_TRIFAN);
+ END_CS;
+ } else {
+ BEGIN_CS(2);
+ OUT_CS_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE);
+ END_CS;
}
- OUT_CS_REG(R300_VAP_CLIP_CNTL, ((1 << clip->nr) - 1) |
- R300_PS_UCP_MODE_CLIP_AS_TRIFAN);
- END_CS;
}
void r300_emit_dsa_state(struct r300_context* r300,