aboutsummaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/swr/swr_clear.cpp
blob: f59179f07116f12537c11e7d4968c3dc73db41c7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/****************************************************************************
 * Copyright (C) 2015 Intel Corporation.   All Rights Reserved.
 *
 * 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 (including the next
 * paragraph) 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 OR COPYRIGHT HOLDERS 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 "swr_context.h"
#include "swr_query.h"

static void
swr_clear(struct pipe_context *pipe,
          unsigned buffers,
          const union pipe_color_union *color,
          double depth,
          unsigned stencil)
{
   struct swr_context *ctx = swr_context(pipe);
   struct pipe_framebuffer_state *fb = &ctx->framebuffer;

   UINT clearMask = 0;
   int layers = 0;

   if (!swr_check_render_cond(pipe))
      return;

   swr_update_derived(pipe);

   if (buffers & PIPE_CLEAR_COLOR && fb->nr_cbufs) {
      for (unsigned i = 0; i < fb->nr_cbufs; ++i)
         if (fb->cbufs[i] && (buffers & (PIPE_CLEAR_COLOR0 << i))) {
            clearMask |= (SWR_ATTACHMENT_COLOR0_BIT << i);
            layers = std::max(layers, fb->cbufs[i]->u.tex.last_layer -
                                      fb->cbufs[i]->u.tex.first_layer + 1);
         }
   }

   if (buffers & PIPE_CLEAR_DEPTH && fb->zsbuf) {
      clearMask |= SWR_ATTACHMENT_DEPTH_BIT;
      layers = std::max(layers, fb->zsbuf->u.tex.last_layer -
                                fb->zsbuf->u.tex.first_layer + 1);
   }

   if (buffers & PIPE_CLEAR_STENCIL && fb->zsbuf) {
      clearMask |= SWR_ATTACHMENT_STENCIL_BIT;
      layers = std::max(layers, fb->zsbuf->u.tex.last_layer -
                                fb->zsbuf->u.tex.first_layer + 1);
   }

#if 0 // XXX HACK, override clear color alpha. On ubuntu, clears are
      // transparent.
   ((union pipe_color_union *)color)->f[3] = 1.0; /* cast off your const'd-ness */
#endif

   for (int i = 0; i < layers; ++i) {
      swr_update_draw_context(ctx);
      SwrClearRenderTarget(ctx->swrContext, clearMask, i,
                           color->f, depth, stencil,
                           ctx->swr_scissor);

      // Mask out the attachments that are out of layers.
      if (fb->zsbuf &&
          fb->zsbuf->u.tex.last_layer - fb->zsbuf->u.tex.first_layer <= i)
         clearMask &= ~(SWR_ATTACHMENT_DEPTH_BIT | SWR_ATTACHMENT_STENCIL_BIT);
      for (unsigned c = 0; c < fb->nr_cbufs; ++c) {
         const struct pipe_surface *sf = fb->cbufs[c];
         if (sf && sf->u.tex.last_layer - sf->u.tex.first_layer <= i)
            clearMask &= ~(SWR_ATTACHMENT_COLOR0_BIT << c);
      }
   }
}


#if 0 // XXX, these don't get called. how to get these called?  Do we need
      // them?  Docs?
static void
swr_clear_render_target(struct pipe_context *pipe, struct pipe_surface *ps,
                        const union pipe_color_union *color,
                        unsigned x, unsigned y, unsigned w, unsigned h,
                        bool render_condition_enabled)
{
   struct swr_context *ctx = swr_context(pipe);
   fprintf(stderr, "SWR swr_clear_render_target!\n");

   ctx->dirty |= SWR_NEW_FRAMEBUFFER | SWR_NEW_SCISSOR;
}

static void
swr_clear_depth_stencil(struct pipe_context *pipe, struct pipe_surface *ps,
                        unsigned buffers, double depth, unsigned stencil,
                        unsigned x, unsigned y, unsigned w, unsigned h,
                        bool render_condition_enabled)
{
   struct swr_context *ctx = swr_context(pipe);
   fprintf(stderr, "SWR swr_clear_depth_stencil!\n");

   ctx->dirty |= SWR_NEW_FRAMEBUFFER | SWR_NEW_SCISSOR;
}

static void
swr_clear_buffer(struct pipe_context *pipe,
                 struct pipe_resource *res,
                 unsigned offset, unsigned size,
                 const void *data, int data_size)
{
   fprintf(stderr, "SWR swr_clear_buffer!\n");
   struct swr_context *ctx = swr_context(pipe);
   struct swr_resource *buf = swr_resource(res);
   union pipe_color_union color;
   enum pipe_format dst_fmt;
   unsigned width, height, elements;

   assert(res->target == PIPE_BUFFER);
   assert(buf);
   assert(size % data_size == 0);

   SWR_SURFACE_STATE &swr_buffer = buf->swr;

   ctx->dirty |= SWR_NEW_FRAMEBUFFER | SWR_NEW_SCISSOR;
}
#endif


void
swr_clear_init(struct pipe_context *pipe)
{
   pipe->clear = swr_clear;
#if 0 // XXX, these don't get called. how to get these called?  Do we need
      // them?  Docs?
   pipe->clear_render_target = swr_clear_render_target;
   pipe->clear_depth_stencil = swr_clear_depth_stencil;
   pipe->clear_buffer = swr_clear_buffer;
#endif
}