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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/**************************************************************************
*
* Copyright 2008 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.
*
**************************************************************************/
#include "main/imports.h"
#include "main/mipmap.h"
#include "main/teximage.h"
#include "main/texformat.h"
#include "shader/prog_instruction.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
#include "util/u_gen_mipmap.h"
#include "cso_cache/cso_cache.h"
#include "cso_cache/cso_context.h"
#include "st_context.h"
#include "st_draw.h"
#include "st_gen_mipmap.h"
#include "st_program.h"
#include "st_texture.h"
#include "st_cb_texture.h"
/**
* one-time init for generate mipmap
* XXX Note: there may be other times we need no-op/simple state like this.
* In that case, some code refactoring would be good.
*/
void
st_init_generate_mipmap(struct st_context *st)
{
st->gen_mipmap = util_create_gen_mipmap(st->pipe, st->cso_context);
}
void
st_destroy_generate_mipmap(struct st_context *st)
{
util_destroy_gen_mipmap(st->gen_mipmap);
st->gen_mipmap = NULL;
}
/**
* Generate mipmap levels using hardware rendering.
* \return TRUE if successful, FALSE if not possible
*/
static boolean
st_render_mipmap(struct st_context *st,
GLenum target,
struct pipe_texture *pt,
uint baseLevel, uint lastLevel)
{
struct pipe_context *pipe = st->pipe;
struct pipe_screen *screen = pipe->screen;
const uint face = _mesa_tex_target_to_face(target);
assert(target != GL_TEXTURE_3D); /* not done yet */
/* check if we can render in the texture's format */
if (!screen->is_format_supported(screen, pt->format, PIPE_SURFACE)) {
return FALSE;
}
util_gen_mipmap(st->gen_mipmap, pt, face, baseLevel, lastLevel,
PIPE_TEX_FILTER_LINEAR);
return TRUE;
}
static void
fallback_generate_mipmap(GLcontext *ctx, GLenum target,
struct gl_texture_object *texObj)
{
struct pipe_context *pipe = ctx->st->pipe;
struct pipe_screen *screen = pipe->screen;
struct pipe_texture *pt = st_get_texobj_texture(texObj);
const uint baseLevel = texObj->BaseLevel;
const uint lastLevel = pt->last_level;
const uint face = _mesa_tex_target_to_face(target), zslice = 0;
uint dstLevel;
GLenum datatype;
GLuint comps;
assert(target != GL_TEXTURE_3D); /* not done yet */
_mesa_format_to_type_and_comps(texObj->Image[face][baseLevel]->TexFormat,
&datatype, &comps);
for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
const uint srcLevel = dstLevel - 1;
struct pipe_surface *srcSurf, *dstSurf;
const ubyte *srcData;
ubyte *dstData;
srcSurf = screen->get_tex_surface(screen, pt, face, srcLevel, zslice,
PIPE_BUFFER_USAGE_CPU_READ);
dstSurf = screen->get_tex_surface(screen, pt, face, dstLevel, zslice,
PIPE_BUFFER_USAGE_CPU_WRITE);
srcData = (ubyte *) pipe_buffer_map(pipe, srcSurf->buffer,
PIPE_BUFFER_USAGE_CPU_READ)
+ srcSurf->offset;
dstData = (ubyte *) pipe_buffer_map(pipe, dstSurf->buffer,
PIPE_BUFFER_USAGE_CPU_WRITE)
+ dstSurf->offset;
_mesa_generate_mipmap_level(target, datatype, comps,
0 /*border*/,
pt->width[srcLevel], pt->height[srcLevel], pt->depth[srcLevel],
srcSurf->pitch * srcSurf->cpp, /* stride in bytes */
srcData,
pt->width[dstLevel], pt->height[dstLevel], pt->depth[dstLevel],
dstSurf->pitch * dstSurf->cpp, /* stride in bytes */
dstData);
pipe_buffer_unmap(pipe, srcSurf->buffer);
pipe_buffer_unmap(pipe, dstSurf->buffer);
pipe_surface_reference(&srcSurf, NULL);
pipe_surface_reference(&dstSurf, NULL);
}
}
void
st_generate_mipmap(GLcontext *ctx, GLenum target,
struct gl_texture_object *texObj)
{
struct st_context *st = ctx->st;
struct pipe_texture *pt = st_get_texobj_texture(texObj);
const uint baseLevel = texObj->BaseLevel;
const uint lastLevel = pt->last_level;
uint dstLevel;
if (!st_render_mipmap(st, target, pt, baseLevel, lastLevel)) {
fallback_generate_mipmap(ctx, target, texObj);
}
/* Fill in the Mesa gl_texture_image fields */
for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
const uint srcLevel = dstLevel - 1;
const struct gl_texture_image *srcImage
= _mesa_get_tex_image(ctx, texObj, target, srcLevel);
struct gl_texture_image *dstImage;
struct st_texture_image *stImage;
uint dstWidth = pt->width[dstLevel];
uint dstHeight = pt->height[dstLevel];
uint dstDepth = pt->depth[dstLevel];
uint border = srcImage->Border;
dstImage = _mesa_get_tex_image(ctx, texObj, target, dstLevel);
if (!dstImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
return;
}
if (dstImage->ImageOffsets)
_mesa_free(dstImage->ImageOffsets);
/* Free old image data */
if (dstImage->Data)
ctx->Driver.FreeTexImageData(ctx, dstImage);
/* initialize new image */
_mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight,
dstDepth, border, srcImage->InternalFormat);
dstImage->TexFormat = srcImage->TexFormat;
stImage = (struct st_texture_image *) dstImage;
pipe_texture_reference(&stImage->pt, pt);
}
}
|
