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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
/*
* Copyright © 2009 Intel Corporation
*
* 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
* Zhigang Gong <zhigang.gong@linux.intel.com>
*
*/
#include "glamor_priv.h"
/** @file glamor_tile.c
*
* Implements the basic fill-with-a-tile support used by multiple GC ops.
*/
void
glamor_init_tile_shader(ScreenPtr screen)
{
glamor_screen_private *glamor_priv;
glamor_gl_dispatch *dispatch;
const char *tile_vs =
"attribute vec4 v_position;\n"
"attribute vec4 v_texcoord0;\n"
"varying vec2 tile_texture;\n"
"void main()\n"
"{\n"
" gl_Position = v_position;\n"
" tile_texture = v_texcoord0.xy;\n" "}\n";
const char *tile_fs =
GLAMOR_DEFAULT_PRECISION
"varying vec2 tile_texture;\n"
"uniform sampler2D sampler;\n"
"uniform vec2 wh;"
"void main()\n"
"{\n"
" vec2 rel_tex;"
" rel_tex = tile_texture * wh; \n"
" rel_tex = floor(rel_tex) + (fract(rel_tex) / wh); \n"
" gl_FragColor = texture2D(sampler, rel_tex);\n"
"}\n";
GLint fs_prog, vs_prog;
GLint sampler_uniform_location;
glamor_priv = glamor_get_screen_private(screen);
dispatch = glamor_get_dispatch(glamor_priv);
glamor_priv->tile_prog = dispatch->glCreateProgram();
vs_prog = glamor_compile_glsl_prog(dispatch, GL_VERTEX_SHADER, tile_vs);
fs_prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
tile_fs);
dispatch->glAttachShader(glamor_priv->tile_prog, vs_prog);
dispatch->glAttachShader(glamor_priv->tile_prog, fs_prog);
dispatch->glBindAttribLocation(glamor_priv->tile_prog,
GLAMOR_VERTEX_POS, "v_position");
dispatch->glBindAttribLocation(glamor_priv->tile_prog,
GLAMOR_VERTEX_SOURCE,
"v_texcoord0");
glamor_link_glsl_prog(dispatch, glamor_priv->tile_prog);
sampler_uniform_location =
dispatch->glGetUniformLocation(glamor_priv->tile_prog,
"sampler");
dispatch->glUseProgram(glamor_priv->tile_prog);
dispatch->glUniform1i(sampler_uniform_location, 0);
glamor_priv->tile_wh =
dispatch->glGetUniformLocation(glamor_priv->tile_prog,
"wh");
dispatch->glUseProgram(0);
glamor_put_dispatch(glamor_priv);
}
void
glamor_fini_tile_shader(ScreenPtr screen)
{
glamor_screen_private *glamor_priv;
glamor_gl_dispatch *dispatch;
glamor_priv = glamor_get_screen_private(screen);
dispatch = glamor_get_dispatch(glamor_priv);
dispatch->glDeleteProgram(glamor_priv->tile_prog);
glamor_put_dispatch(glamor_priv);
}
Bool
glamor_tile(PixmapPtr pixmap, PixmapPtr tile,
int x, int y, int width, int height,
unsigned char alu, unsigned long planemask,
int tile_x, int tile_y)
{
ScreenPtr screen = pixmap->drawable.pScreen;
glamor_screen_private *glamor_priv =
glamor_get_screen_private(screen);
glamor_gl_dispatch *dispatch;
int x1 = x;
int x2 = x + width;
int y1 = y;
int y2 = y + height;
int tile_x1 = tile_x;
int tile_x2 = tile_x + width;
int tile_y1 = tile_y;
int tile_y2 = tile_y + height;
float vertices[8];
float source_texcoords[8];
GLfloat dst_xscale, dst_yscale, src_xscale, src_yscale;
glamor_pixmap_private *src_pixmap_priv;
glamor_pixmap_private *dst_pixmap_priv;
float wh[2];
src_pixmap_priv = glamor_get_pixmap_private(tile);
dst_pixmap_priv = glamor_get_pixmap_private(pixmap);
if (src_pixmap_priv == NULL || dst_pixmap_priv == NULL)
goto fail;
if (glamor_priv->tile_prog == 0) {
glamor_fallback("Tiling unsupported\n");
goto fail;
}
if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dst_pixmap_priv)) {
glamor_fallback("dest has no fbo.\n");
goto fail;
}
if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(src_pixmap_priv)) {
/* XXX dynamic uploading candidate. */
glamor_fallback("Non-texture tile pixmap\n");
goto fail;
}
if (!glamor_set_planemask(pixmap, planemask)) {
glamor_fallback("unsupported planemask %lx\n", planemask);
goto fail;
}
glamor_set_destination_pixmap_priv_nc(dst_pixmap_priv);
pixmap_priv_get_dest_scale(dst_pixmap_priv, &dst_xscale, &dst_yscale);
dispatch = glamor_get_dispatch(glamor_priv);
if (!glamor_set_alu(dispatch, alu)) {
glamor_put_dispatch(glamor_priv);
goto fail;
}
pixmap_priv_get_scale(src_pixmap_priv, &src_xscale,
&src_yscale);
dispatch->glUseProgram(glamor_priv->tile_prog);
wh[0] = (float)src_pixmap_priv->fbo->width / tile->drawable.width;
wh[1] = (float)src_pixmap_priv->fbo->height / tile->drawable.height;
dispatch->glUniform2fv(glamor_priv->tile_wh, 1, wh);
dispatch->glActiveTexture(GL_TEXTURE0);
dispatch->glBindTexture(GL_TEXTURE_2D,
src_pixmap_priv->fbo->tex);
dispatch->glTexParameteri(GL_TEXTURE_2D,
GL_TEXTURE_MIN_FILTER,
GL_NEAREST);
dispatch->glTexParameteri(GL_TEXTURE_2D,
GL_TEXTURE_MAG_FILTER,
GL_NEAREST);
dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
GL_REPEAT);
dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
GL_REPEAT);
#ifndef GLAMOR_GLES2
dispatch->glEnable(GL_TEXTURE_2D);
#endif
glamor_set_normalize_tcoords(src_xscale, src_yscale,
tile_x1, tile_y1,
tile_x2, tile_y2,
glamor_priv->yInverted,
source_texcoords);
dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2,
GL_FLOAT, GL_FALSE,
2 * sizeof(float),
source_texcoords);
dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
glamor_set_normalize_vcoords(dst_xscale, dst_yscale,
x1, y1, x2, y2,
glamor_priv->yInverted, vertices);
dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
GL_FALSE, 2 * sizeof(float),
vertices);
dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
dispatch->glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
#ifndef GLAMOR_GLES2
dispatch->glDisable(GL_TEXTURE_2D);
#endif
dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
dispatch->glUseProgram(0);
glamor_set_alu(dispatch, GXcopy);
glamor_set_planemask(pixmap, ~0);
glamor_put_dispatch(glamor_priv);
return TRUE;
fail:
return FALSE;
}
|
