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
224
225
|
/* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_xmesa.c,v 1.4 2000/12/12 17:17:08 dawes Exp $ */
/**************************************************************************
Copyright 1999, 2000 ATI Technologies Inc. and Precision Insight, 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
on 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
ATI, PRECISION INSIGHT AND/OR THEIR 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:
* Kevin E. Martin <martin@valinux.com>
* Gareth Hughes <gareth@valinux.com>
*
*/
#ifdef GLX_DIRECT_RENDERING
/* r128 Mesa driver includes */
#include "r128_context.h"
#include "r128_ioctl.h"
#include "r128_state.h"
#include "r128_tex.h"
/* Mesa src includes */
#include "context.h"
#include "simple_list.h"
#include "mmath.h"
extern void __driRegisterExtensions( void );
static r128ContextPtr r128Context = NULL;
/* Initialize the driver specific screen private data */
GLboolean XMesaInitDriver(__DRIscreenPrivate *sPriv)
{
sPriv->private = (void *)r128CreateScreen(sPriv);
if (!sPriv->private) {
r128DestroyScreen(sPriv);
return GL_FALSE;
}
return GL_TRUE;
}
/* Reset the driver specific screen private data */
void XMesaResetDriver(__DRIscreenPrivate *sPriv)
{
r128DestroyScreen(sPriv);
}
/* Create and initialize the Mesa and driver specific visual data */
GLvisual *XMesaCreateVisual(Display *dpy,
__DRIscreenPrivate *driScrnPriv,
const XVisualInfo *visinfo,
const __GLXvisualConfig *config)
{
/* Drivers may change the args to _mesa_create_visual() in order to
* setup special visuals.
*/
return _mesa_create_visual(config->rgba,
config->doubleBuffer,
config->stereo,
_mesa_bitcount(visinfo->red_mask),
_mesa_bitcount(visinfo->green_mask),
_mesa_bitcount(visinfo->blue_mask),
config->alphaSize,
0, /* index bits */
config->depthSize,
config->stencilSize,
config->accumRedSize,
config->accumGreenSize,
config->accumBlueSize,
config->accumAlphaSize,
0 /* num samples */);
}
/* Create and initialize the Mesa and driver specific context data */
GLboolean XMesaCreateContext(Display *dpy, GLvisual *mesaVis,
__DRIcontextPrivate *driContextPriv)
{
return r128CreateContext(dpy, mesaVis, driContextPriv);
}
/* Destroy the Mesa and driver specific context data */
void XMesaDestroyContext(__DRIcontextPrivate *driContextPriv)
{
r128ContextPtr r128ctx = (r128ContextPtr)driContextPriv->driverPrivate;
if (r128ctx == (void *)r128Context) r128Context = NULL;
r128DestroyContext(r128ctx);
}
/* Create and initialize the Mesa and driver specific pixmap buffer data */
GLframebuffer *XMesaCreateWindowBuffer(Display *dpy,
__DRIscreenPrivate *driScrnPriv,
__DRIdrawablePrivate *driDrawPriv,
GLvisual *mesaVis)
{
return gl_create_framebuffer(mesaVis,
GL_FALSE, /* software depth buffer? */
mesaVis->StencilBits > 0,
mesaVis->AccumRedBits > 0,
mesaVis->AlphaBits > 0
);
}
/* Create and initialize the Mesa and driver specific pixmap buffer data */
GLframebuffer *XMesaCreatePixmapBuffer( Display *dpy,
__DRIscreenPrivate *driScrnPriv,
__DRIdrawablePrivate *driDrawPriv,
GLvisual *mesaVis)
{
#if 0
/* Different drivers may have different combinations of hardware and
* software ancillary buffers.
*/
return gl_create_framebuffer(mesaVis,
GL_FALSE, /* software depth buffer? */
mesaVis->StencilBits > 0,
mesaVis->AccumRedBits > 0,
mesaVis->AlphaBits > 0);
#else
return NULL; /* not implemented yet */
#endif
}
/* Copy the back color buffer to the front color buffer */
void XMesaSwapBuffers(__DRIdrawablePrivate *driDrawPriv)
{
/* FIXME: This assumes buffer is currently bound to a context. This
needs to be able to swap buffers when not currently bound. Also,
this needs to swap according to buffer, and NOT according to
context! */
if (r128Context == NULL) return;
/* Only swap buffers when a back buffer exists */
if (R128_MESACTX(r128Context)->Visual->DBflag) {
FLUSH_VB(R128_MESACTX(r128Context), "swap buffers");
r128SwapBuffers(r128Context);
}
}
/* Force the context `c' to be the current context and associate with it
buffer `b' */
GLboolean XMesaMakeCurrent(__DRIcontextPrivate *driContextPriv,
__DRIdrawablePrivate *driDrawPriv,
__DRIdrawablePrivate *driReadPriv)
{
if (driContextPriv) {
r128ContextPtr r128ctx = (r128ContextPtr)driContextPriv->driverPrivate;
r128Context = r128MakeCurrent(r128Context, r128ctx, driDrawPriv);
gl_make_current2(R128_MESACTX(r128Context),
driDrawPriv->mesaBuffer, driReadPriv->mesaBuffer);
if (r128Context->driDrawable != driDrawPriv) {
r128Context->driDrawable = driDrawPriv;
r128Context->dirty = R128_UPLOAD_ALL;
}
/* GH: We need this to correctly calculate the window offset
* and aux scissor rects.
*/
r128Context->new_state = R128_NEW_WINDOW | R128_NEW_CLIP;
if (!R128_MESACTX(r128Context)->Viewport.Width) {
gl_Viewport(R128_MESACTX(r128Context), 0, 0,
driDrawPriv->w, driDrawPriv->h);
}
} else {
gl_make_current(0,0);
r128Context = NULL;
}
return GL_TRUE;
}
/* Force the context `c' to be unbound from its buffer */
GLboolean XMesaUnbindContext(__DRIcontextPrivate *driContextPriv)
{
return GL_TRUE;
}
/* This function is called by libGL.so as soon as libGL.so is loaded.
* This is where we'd register new extension functions with the dispatcher.
*/
void __driRegisterExtensions( void )
{
}
GLboolean
XMesaOpenFullScreen(__DRIcontextPrivate *driContextPriv)
{
return GL_TRUE;
}
GLboolean
XMesaCloseFullScreen(__DRIcontextPrivate *driContextPriv)
{
return GL_TRUE;
}
#endif
|
