vl: ...

[mesa.git] / src / gallium / drivers / nv50 / nv50_clear.c

diff --git a/src/gallium/drivers/nv50/nv50_clear.c b/src/gallium/drivers/nv50/nv50_clear.c
index 552b92f72e233b352e1aaaf73437cad6d7636f4b..5447904e9ca11a7babff49b33e438335ba3cfbb8 100644 (file)
--- a/src/gallium/drivers/nv50/nv50_clear.c
+++ b/src/gallium/drivers/nv50/nv50_clear.c
@@ -1,3 +1,25 @@
+/*
+ * Copyright 2008 Ben Skeggs
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
 #include "pipe/p_state.h"
@@ -5,8 +27,46 @@
 #include "nv50_context.h"
 
 void
-nv50_clear(struct pipe_context *pipe, struct pipe_surface *ps,
-          unsigned clearValue)
+nv50_clear(struct pipe_context *pipe, unsigned buffers,
+          const float *rgba, double depth, unsigned stencil)
 {
-       pipe->surface_fill(pipe, ps, 0, 0, ps->width, ps->height, clearValue);
+       struct nv50_context *nv50 = nv50_context(pipe);
+       struct nouveau_channel *chan = nv50->screen->base.channel;
+       struct nouveau_grobj *tesla = nv50->screen->tesla;
+       struct pipe_framebuffer_state *fb = &nv50->framebuffer;
+       unsigned mode = 0, i;
+       const unsigned dirty = nv50->dirty;
+
+       /* don't need NEW_BLEND, NV50TCL_COLOR_MASK doesn't affect CLEAR_BUFFERS */
+       nv50->dirty &= NV50_NEW_FRAMEBUFFER | NV50_NEW_SCISSOR;
+       if (!nv50_state_validate(nv50, 64))
+               return;
+
+       if (buffers & PIPE_CLEAR_COLOR && fb->nr_cbufs) {
+               BEGIN_RING(chan, tesla, NV50TCL_CLEAR_COLOR(0), 4);
+               OUT_RING  (chan, fui(rgba[0]));
+               OUT_RING  (chan, fui(rgba[1]));
+               OUT_RING  (chan, fui(rgba[2]));
+               OUT_RING  (chan, fui(rgba[3]));
+               mode |= 0x3c;
+       }
+
+       if (buffers & PIPE_CLEAR_DEPTHSTENCIL) {
+               BEGIN_RING(chan, tesla, NV50TCL_CLEAR_DEPTH, 1);
+               OUT_RING  (chan, fui(depth));
+               BEGIN_RING(chan, tesla, NV50TCL_CLEAR_STENCIL, 1);
+               OUT_RING  (chan, stencil & 0xff);
+
+               mode |= 0x03;
+       }
+
+       BEGIN_RING(chan, tesla, NV50TCL_CLEAR_BUFFERS, 1);
+       OUT_RING  (chan, mode);
+
+       for (i = 1; i < fb->nr_cbufs; i++) {
+               BEGIN_RING(chan, tesla, NV50TCL_CLEAR_BUFFERS, 1);
+               OUT_RING  (chan, (i << 6) | 0x3c);
+       }
+       nv50->dirty = dirty;
 }
+