Merge remote branch 'origin/master' into gallium_draw_llvm

1 files changed, 36 insertions, 0 deletions

diff --git a/src/gallium/drivers/nvfx/nvfx_state_scissor.c b/src/gallium/drivers/nvfx/nvfx_state_scissor.c
new file mode 100644
index 0000000000..940d8cb5c0
--- /dev/null
+++ b/src/gallium/drivers/nvfx/nvfx_state_scissor.c
@@ -0,0 +1,36 @@
+#include "nvfx_context.h"
+
+static boolean
+nvfx_state_scissor_validate(struct nvfx_context *nvfx)
+{
+	struct pipe_rasterizer_state *rast = &nvfx->rasterizer->pipe;
+	struct pipe_scissor_state *s = &nvfx->scissor;
+	struct nouveau_stateobj *so;
+
+	if (nvfx->state.hw[NVFX_STATE_SCISSOR] &&
+	    (rast->scissor == 0 && nvfx->state.scissor_enabled == 0))
+		return FALSE;
+	nvfx->state.scissor_enabled = rast->scissor;
+
+	so = so_new(1, 2, 0);
+	so_method(so, nvfx->screen->eng3d, NV34TCL_SCISSOR_HORIZ, 2);
+	if (nvfx->state.scissor_enabled) {
+		so_data  (so, ((s->maxx - s->minx) << 16) | s->minx);
+		so_data  (so, ((s->maxy - s->miny) << 16) | s->miny);
+	} else {
+		so_data  (so, 4096 << 16);
+		so_data  (so, 4096 << 16);
+	}
+
+	so_ref(so, &nvfx->state.hw[NVFX_STATE_SCISSOR]);
+	so_ref(NULL, &so);
+	return TRUE;
+}
+
+struct nvfx_state_entry nvfx_state_scissor = {
+	.validate = nvfx_state_scissor_validate,
+	.dirty = {
+		.pipe = NVFX_NEW_SCISSOR | NVFX_NEW_RAST,
+		.hw = NVFX_STATE_SCISSOR
+	}
+};