vc4_emit.c revision 848b8605 
1/*
2 * Copyright © 2014 Broadcom
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#include "vc4_context.h"
25
26void
27vc4_emit_state(struct pipe_context *pctx)
28{
29        struct vc4_context *vc4 = vc4_context(pctx);
30
31        if (vc4->dirty & VC4_DIRTY_SCISSOR) {
32                cl_u8(&vc4->bcl, VC4_PACKET_CLIP_WINDOW);
33                cl_u16(&vc4->bcl, vc4->scissor.minx);
34                cl_u16(&vc4->bcl, vc4->scissor.miny);
35                cl_u16(&vc4->bcl, vc4->scissor.maxx - vc4->scissor.minx);
36                cl_u16(&vc4->bcl, vc4->scissor.maxy - vc4->scissor.miny);
37        }
38
39        if (vc4->dirty & (VC4_DIRTY_RASTERIZER | VC4_DIRTY_ZSA)) {
40                cl_u8(&vc4->bcl, VC4_PACKET_CONFIGURATION_BITS);
41                cl_u8(&vc4->bcl,
42                      vc4->rasterizer->config_bits[0] |
43                      vc4->zsa->config_bits[0]);
44                cl_u8(&vc4->bcl,
45                      vc4->rasterizer->config_bits[1] |
46                      vc4->zsa->config_bits[1]);
47                cl_u8(&vc4->bcl,
48                      vc4->rasterizer->config_bits[2] |
49                      vc4->zsa->config_bits[2]);
50        }
51
52        if (vc4->dirty & VC4_DIRTY_VIEWPORT) {
53                cl_u8(&vc4->bcl, VC4_PACKET_CLIPPER_XY_SCALING);
54                cl_f(&vc4->bcl, vc4->viewport.scale[0] * 16.0f);
55                cl_f(&vc4->bcl, vc4->viewport.scale[1] * 16.0f);
56
57                cl_u8(&vc4->bcl, VC4_PACKET_CLIPPER_Z_SCALING);
58                cl_f(&vc4->bcl, vc4->viewport.translate[2]);
59                cl_f(&vc4->bcl, vc4->viewport.scale[2]);
60
61                cl_u8(&vc4->bcl, VC4_PACKET_VIEWPORT_OFFSET);
62                cl_u16(&vc4->bcl, 16 * vc4->viewport.translate[0]);
63                cl_u16(&vc4->bcl, 16 * vc4->viewport.translate[1]);
64        }
65}
66