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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
/*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
* Brian Paul
*/
#include "st_context.h"
#include "st_atom.h"
#include "st_cb_fbo.h"
#include "st_texture.h"
#include "pipe/p_context.h"
#include "cso_cache/cso_context.h"
#include "util/u_math.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
/**
* When doing GL render to texture, we have to be sure that finalize_texture()
* didn't yank out the pipe_resource that we earlier created a surface for.
* Check for that here and create a new surface if needed.
*/
static void
update_renderbuffer_surface(struct st_context *st,
struct st_renderbuffer *strb)
{
struct pipe_context *pipe = st->pipe;
struct pipe_resource *resource = strb->rtt->pt;
int rtt_width = strb->Base.Width;
int rtt_height = strb->Base.Height;
enum pipe_format format = st->ctx->Color.sRGBEnabled ? resource->format : util_format_linear(resource->format);
if (!strb->surface ||
strb->surface->format != format ||
strb->surface->texture != resource ||
strb->surface->width != rtt_width ||
strb->surface->height != rtt_height) {
GLuint level;
/* find matching mipmap level size */
for (level = 0; level <= resource->last_level; level++) {
if (u_minify(resource->width0, level) == rtt_width &&
u_minify(resource->height0, level) == rtt_height) {
struct pipe_surface surf_tmpl;
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
surf_tmpl.format = format;
surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
surf_tmpl.u.tex.level = level;
surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
pipe_surface_reference(&strb->surface, NULL);
strb->surface = pipe->create_surface(pipe,
resource,
&surf_tmpl);
#if 0
printf("-- alloc new surface %d x %d into tex %p\n",
strb->surface->width, strb->surface->height,
texture);
#endif
break;
}
}
}
}
/**
* Update framebuffer state (color, depth, stencil, etc. buffers)
*/
static void
update_framebuffer_state( struct st_context *st )
{
struct pipe_framebuffer_state *framebuffer = &st->state.framebuffer;
struct gl_framebuffer *fb = st->ctx->DrawBuffer;
struct st_renderbuffer *strb;
GLuint i;
framebuffer->width = fb->Width;
framebuffer->height = fb->Height;
/*printf("------ fb size %d x %d\n", fb->Width, fb->Height);*/
/* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state
* to determine which surfaces to draw to
*/
framebuffer->nr_cbufs = 0;
for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
strb = st_renderbuffer(fb->_ColorDrawBuffers[i]);
if (strb) {
/*printf("--------- framebuffer surface rtt %p\n", strb->rtt);*/
if (strb->rtt) {
/* rendering to a GL texture, may have to update surface */
update_renderbuffer_surface(st, strb);
}
if (strb->surface) {
pipe_surface_reference(&framebuffer->cbufs[framebuffer->nr_cbufs],
strb->surface);
framebuffer->nr_cbufs++;
}
strb->defined = GL_TRUE; /* we'll be drawing something */
}
}
for (i = framebuffer->nr_cbufs; i < PIPE_MAX_COLOR_BUFS; i++) {
pipe_surface_reference(&framebuffer->cbufs[i], NULL);
}
/*
* Depth/Stencil renderbuffer/surface.
*/
strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer);
if (strb) {
strb = st_renderbuffer(strb->Base.Wrapped);
if (strb->rtt) {
/* rendering to a GL texture, may have to update surface */
update_renderbuffer_surface(st, strb);
}
pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
}
else {
strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);
if (strb) {
strb = st_renderbuffer(strb->Base.Wrapped);
assert(strb->surface);
pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
}
else
pipe_surface_reference(&framebuffer->zsbuf, NULL);
}
#ifdef DEBUG
/* Make sure the resource binding flags were set properly */
for (i = 0; i < framebuffer->nr_cbufs; i++) {
assert(framebuffer->cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);
}
if (framebuffer->zsbuf) {
assert(framebuffer->zsbuf->texture->bind & PIPE_BIND_DEPTH_STENCIL);
}
#endif
cso_set_framebuffer(st->cso_context, framebuffer);
}
const struct st_tracked_state st_update_framebuffer = {
"st_update_framebuffer", /* name */
{ /* dirty */
_NEW_BUFFERS, /* mesa */
ST_NEW_FRAMEBUFFER, /* st */
},
update_framebuffer_state /* update */
};
|
