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 SWR_RECT clear_rect;
72 /* If enabled, clear to scissor; otherwise clear full surface */
73 if (ctx->rasterizer && ctx->rasterizer->scissor) {
74 clear_rect = ctx->swr_scissor;
75 } else {
76 clear_rect = {0, 0, (int32_t)fb->width, (int32_t)fb->height};
77 }
78
79 for (unsigned i = 0; i < layers; ++i) {
80 swr_update_draw_context(ctx);
81 ctx->api.pfnSwrClearRenderTarget(ctx->swrContext, clearMask, i,
82 color->f, depth, stencil,
83 clear_rect);
84
85 // Mask out the attachments that are out of layers.
86 if (fb->zsbuf &&
87 (fb->zsbuf->u.tex.last_layer <= fb->zsbuf->u.tex.first_layer + i))
88 clearMask &= ~(SWR_ATTACHMENT_DEPTH_BIT | SWR_ATTACHMENT_STENCIL_BIT);
89 for (unsigned c = 0; c < fb->nr_cbufs; ++c) {
90 const struct pipe_surface *sf = fb->cbufs[c];
91 if (sf && (sf->u.tex.last_layer <= sf->u.tex.first_layer + i))
92 clearMask &= ~(SWR_ATTACHMENT_COLOR0_BIT << c);
93 }
94 }
95 }
96
97
98 #if 0 // XXX, these don't get called. how to get these called? Do we need
99 // them? Docs?
100 static void
101 swr_clear_render_target(struct pipe_context *pipe, struct pipe_surface *ps,
102 const union pipe_color_union *color,
103 unsigned x, unsigned y, unsigned w, unsigned h,
104 bool render_condition_enabled)
105 {
106 struct swr_context *ctx = swr_context(pipe);
107 fprintf(stderr, "SWR swr_clear_render_target!\n");
108
109 ctx->dirty |= SWR_NEW_FRAMEBUFFER | SWR_NEW_SCISSOR;
110 }
111
112 static void
113 swr_clear_depth_stencil(struct pipe_context *pipe, struct pipe_surface *ps,
114 unsigned buffers, double depth, unsigned stencil,
115 unsigned x, unsigned y, unsigned w, unsigned h,
116 bool render_condition_enabled)
117 {
118 struct swr_context *ctx = swr_context(pipe);
119 fprintf(stderr, "SWR swr_clear_depth_stencil!\n");
120
121 ctx->dirty |= SWR_NEW_FRAMEBUFFER | SWR_NEW_SCISSOR;
122 }
123
124 static void
125 swr_clear_buffer(struct pipe_context *pipe,
126 struct pipe_resource *res,
127 unsigned offset, unsigned size,
128 const void *data, int data_size)
129 {
130 fprintf(stderr, "SWR swr_clear_buffer!\n");
131 struct swr_context *ctx = swr_context(pipe);
132 struct swr_resource *buf = swr_resource(res);
133 union pipe_color_union color;
134 enum pipe_format dst_fmt;
135 unsigned width, height, elements;
136
137 assert(res->target == PIPE_BUFFER);
138 assert(buf);
139 assert(size % data_size == 0);
140
141 SWR_SURFACE_STATE &swr_buffer = buf->swr;
142
143 ctx->dirty |= SWR_NEW_FRAMEBUFFER | SWR_NEW_SCISSOR;
144 }
145 #endif
146
147
148 void
swr_clear_init(struct pipe_context * pipe)149 swr_clear_init(struct pipe_context *pipe)
150 {
151 pipe->clear = swr_clear;
152 #if 0 // XXX, these don't get called. how to get these called? Do we need
153 // them? Docs?
154 pipe->clear_render_target = swr_clear_render_target;
155 pipe->clear_depth_stencil = swr_clear_depth_stencil;
156 pipe->clear_buffer = swr_clear_buffer;
157 #endif
158 }
159