diff options
Diffstat (limited to 'src/gallium/drivers/nv50/nv50_clear.c')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_clear.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_clear.c b/src/gallium/drivers/nv50/nv50_clear.c new file mode 100644 index 00000000000..f9bc3b53caa --- /dev/null +++ b/src/gallium/drivers/nv50/nv50_clear.c @@ -0,0 +1,92 @@ +/* + * 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" + +#include "nv50_context.h" + +void +nv50_clear(struct pipe_context *pipe, struct pipe_surface *ps, + unsigned clearValue) +{ + struct nv50_context *nv50 = nv50_context(pipe); + struct nouveau_channel *chan = nv50->screen->nvws->channel; + struct nouveau_grobj *tesla = nv50->screen->tesla; + struct pipe_framebuffer_state fb, s_fb = nv50->framebuffer; + struct pipe_scissor_state sc, s_sc = nv50->scissor; + unsigned dirty = nv50->dirty; + + nv50->dirty = 0; + + if (ps->format == PIPE_FORMAT_Z24S8_UNORM || + ps->format == PIPE_FORMAT_Z16_UNORM) { + fb.nr_cbufs = 0; + fb.zsbuf = ps; + } else { + fb.nr_cbufs = 1; + fb.cbufs[0] = ps; + fb.zsbuf = NULL; + } + fb.width = ps->width; + fb.height = ps->height; + pipe->set_framebuffer_state(pipe, &fb); + + sc.minx = sc.miny = 0; + sc.maxx = fb.width; + sc.maxy = fb.height; + pipe->set_scissor_state(pipe, &sc); + + nv50_state_validate(nv50); + + switch (ps->format) { + case PIPE_FORMAT_A8R8G8B8_UNORM: + BEGIN_RING(chan, tesla, 0x0d80, 4); + OUT_RINGf (chan, ubyte_to_float((clearValue >> 16) & 0xff)); + OUT_RINGf (chan, ubyte_to_float((clearValue >> 8) & 0xff)); + OUT_RINGf (chan, ubyte_to_float((clearValue >> 0) & 0xff)); + OUT_RINGf (chan, ubyte_to_float((clearValue >> 24) & 0xff)); + BEGIN_RING(chan, tesla, 0x19d0, 1); + OUT_RING (chan, 0x3c); + break; + case PIPE_FORMAT_Z24S8_UNORM: + BEGIN_RING(chan, tesla, 0x0d90, 1); + OUT_RINGf (chan, (float)(clearValue >> 8) * (1.0 / 16777215.0)); + BEGIN_RING(chan, tesla, 0x0da0, 1); + OUT_RING (chan, clearValue & 0xff); + BEGIN_RING(chan, tesla, 0x19d0, 1); + OUT_RING (chan, 0x03); + break; + default: + pipe->surface_fill(pipe, ps, 0, 0, ps->width, ps->height, + clearValue); + break; + } + + pipe->set_framebuffer_state(pipe, &s_fb); + pipe->set_scissor_state(pipe, &s_sc); + nv50->dirty |= dirty; + + ps->status = PIPE_SURFACE_STATUS_CLEAR; +} + |