1 /****************************************************************************
2 * Copyright (C) 2015 Intel Corporation. All Rights Reserved.
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 "swr_context.h"
25 #include "swr_query.h"
26
27 static void
swr_clear(struct pipe_context * pipe,unsigned buffers,const union pipe_color_union * color,double depth,unsigned stencil)28 swr_clear(struct pipe_context *pipe,
29 unsigned buffers,
30 const union pipe_color_union *color,
31 double depth,
32 unsigned stencil)
33 {
34 struct swr_context *ctx = swr_context(pipe);
35 struct pipe_framebuffer_state *fb = &ctx->framebuffer;
36
37 UINT clearMask = 0;
38 unsigned layers = 0;
39
40 if (!swr_check_render_cond(pipe))
41 return;
42
43 swr_update_derived(pipe);
44
45 if (buffers & PIPE_CLEAR_COLOR && fb->nr_cbufs) {
46 for (unsigned i = 0; i < fb->nr_cbufs; ++i)
47 if (fb->cbufs[i] && (buffers & (PIPE_CLEAR_COLOR0 << i))) {
48 clearMask |= (SWR_ATTACHMENT_COLOR0_BIT << i);
49 layers = std::max(layers, fb->cbufs[i]->u.tex.last_layer -
50 fb->cbufs[i]->u.tex.first_layer + 1u);
51 }
52 }
53
54 if (buffers & PIPE_CLEAR_DEPTH && fb->zsbuf) {
55 clearMask |= SWR_ATTACHMENT_DEPTH_BIT;
56 layers = std::max(layers, fb->zsbuf->u.tex.last_layer -
57 fb->zsbuf->u.tex.first_layer + 1u);
58 }
59
60 if (buffers & PIPE_CLEAR_STENCIL && fb->zsbuf) {
61 clearMask |= SWR_ATTACHMENT_STENCIL_BIT;
62 layers = std::max(layers, fb->zsbuf->u.tex.last_layer -
63 fb->zsbuf->u.tex.first_layer + 1u);
64 }
65
66 #if 0 // XXX HACK, override clear color alpha. On ubuntu, clears are
67 // transparent.
68 ((union pipe_color_union *)color)->f[3] = 1.0; /* cast off your const'd-ness */
69 #endif
70
71 for (unsigned i = 0; i < layers; ++i) {
72 swr_update_draw_context(ctx);
73 SwrClearRenderTarget(ctx->swrContext, clearMask, i,
74 color->f, depth, stencil,
75 ctx->swr_scissor);
76
77 // Mask out the attachments that are out of layers.
78 if (fb->zsbuf &&
79 (fb->zsbuf->u.tex.last_layer <= fb->zsbuf->u.tex.first_layer + i))
80 clearMask &= ~(SWR_ATTACHMENT_DEPTH_BIT | SWR_ATTACHMENT_STENCIL_BIT);
81 for (unsigned c = 0; c < fb->nr_cbufs; ++c) {
82 const struct pipe_surface *sf = fb->cbufs[c];
83 if (sf && (sf->u.tex.last_layer <= sf->u.tex.first_layer + i))
84 clearMask &= ~(SWR_ATTACHMENT_COLOR0_BIT << c);
85 }
86 }
87 }
88
89
90 #if 0 // XXX, these don't get called. how to get these called? Do we need
91 // them? Docs?
92 static void
93 swr_clear_render_target(struct pipe_context *pipe, struct pipe_surface *ps,
94 const union pipe_color_union *color,
95 unsigned x, unsigned y, unsigned w, unsigned h,
96 bool render_condition_enabled)
97 {
98 struct swr_context *ctx = swr_context(pipe);
99 fprintf(stderr, "SWR swr_clear_render_target!\n");
100
101 ctx->dirty |= SWR_NEW_FRAMEBUFFER | SWR_NEW_SCISSOR;
102 }
103
104 static void
105 swr_clear_depth_stencil(struct pipe_context *pipe, struct pipe_surface *ps,
106 unsigned buffers, double depth, unsigned stencil,
107 unsigned x, unsigned y, unsigned w, unsigned h,
108 bool render_condition_enabled)
109 {
110 struct swr_context *ctx = swr_context(pipe);
111 fprintf(stderr, "SWR swr_clear_depth_stencil!\n");
112
113 ctx->dirty |= SWR_NEW_FRAMEBUFFER | SWR_NEW_SCISSOR;
114 }
115
116 static void
117 swr_clear_buffer(struct pipe_context *pipe,
118 struct pipe_resource *res,
119 unsigned offset, unsigned size,
120 const void *data, int data_size)
121 {
122 fprintf(stderr, "SWR swr_clear_buffer!\n");
123 struct swr_context *ctx = swr_context(pipe);
124 struct swr_resource *buf = swr_resource(res);
125 union pipe_color_union color;
126 enum pipe_format dst_fmt;
127 unsigned width, height, elements;
128
129 assert(res->target == PIPE_BUFFER);
130 assert(buf);
131 assert(size % data_size == 0);
132
133 SWR_SURFACE_STATE &swr_buffer = buf->swr;
134
135 ctx->dirty |= SWR_NEW_FRAMEBUFFER | SWR_NEW_SCISSOR;
136 }
137 #endif
138
139
140 void
swr_clear_init(struct pipe_context * pipe)141 swr_clear_init(struct pipe_context *pipe)
142 {
143 pipe->clear = swr_clear;
144 #if 0 // XXX, these don't get called. how to get these called? Do we need
145 // them? Docs?
146 pipe->clear_render_target = swr_clear_render_target;
147 pipe->clear_depth_stencil = swr_clear_depth_stencil;
148 pipe->clear_buffer = swr_clear_buffer;
149 #endif
150 }
151