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
|
/*
*
* GLX Hardware Device Driver for Sun Creator/Creator3D
* Copyright (C) 2000 David S. Miller
*
* 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 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
* DAVID MILLER, OR ANY OTHER CONTRIBUTORS 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.
*
*
* David S. Miller <davem@redhat.com>
*/
#include "main/mtypes.h"
#include "ffb_dd.h"
#include "ffb_span.h"
#include "ffb_context.h"
#include "ffb_stencil.h"
#include "ffb_lock.h"
#undef STENCIL_TRACE
static void FFBWriteStencilSpan( GLcontext *ctx,
struct gl_renderbuffer *rb,
GLuint n, GLint x, GLint y,
const void *values, const GLubyte mask[] )
{
const GLubyte *stencil = (const GLubyte *) values;
#ifdef STENCIL_TRACE
fprintf(stderr, "FFBWriteStencilSpan: n(%d) x(%d) y(%d)\n",
(int) n, x, y);
#endif
if (ctx->Depth.Mask) {
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
__DRIdrawable *dPriv = fmesa->driDrawable;
GLuint *zptr;
GLuint i;
if (!fmesa->hw_locked)
LOCK_HARDWARE(fmesa);
FFBFifo(fmesa, 2);
fmesa->regs->fbc = (FFB_FBC_WB_C | FFB_FBC_ZE_OFF |
FFB_FBC_YE_ON | FFB_FBC_RGBE_OFF);
fmesa->regs->ppc = FFB_PPC_YS_VAR;
FFBWait(fmesa, fmesa->regs);
y = (dPriv->h - y);
zptr = (GLuint *)
((char *)fmesa->sfb32 +
((dPriv->x + x) << 2) +
((dPriv->y + y) << 13));
for (i = 0; i < n; i++) {
if (mask[i])
*zptr = (stencil[i] & 0xf) << 28;
zptr++;
}
FFBFifo(fmesa, 2);
fmesa->regs->fbc = fmesa->fbc;
fmesa->regs->ppc = fmesa->ppc;
fmesa->ffbScreen->rp_active = 1;
if (!fmesa->hw_locked)
UNLOCK_HARDWARE(fmesa);
}
}
static void FFBWriteStencilPixels( GLcontext *ctx,
struct gl_renderbuffer *rb,
GLuint n,
const GLint x[], const GLint y[],
const void *values, const GLubyte mask[] )
{
const GLubyte *stencil = (const GLubyte *) values;
#ifdef STENCIL_TRACE
fprintf(stderr, "FFBWriteStencilPixels: n(%d)\n", (int) n);
#endif
if (ctx->Depth.Mask) {
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
__DRIdrawable *dPriv = fmesa->driDrawable;
char *zbase;
GLuint i;
if (!fmesa->hw_locked)
LOCK_HARDWARE(fmesa);
FFBFifo(fmesa, 2);
fmesa->regs->fbc = (FFB_FBC_WB_C | FFB_FBC_ZE_OFF |
FFB_FBC_YE_ON | FFB_FBC_RGBE_OFF);
fmesa->regs->ppc = FFB_PPC_YS_VAR;
fmesa->ffbScreen->rp_active = 1;
FFBWait(fmesa, fmesa->regs);
zbase = ((char *)fmesa->sfb32 +
(dPriv->x << 2) + (dPriv->y << 13));
for (i = 0; i < n; i++) {
GLint y1 = (dPriv->h - y[i]);
GLint x1 = x[i];
GLuint *zptr;
zptr = (GLuint *)
(zbase + (x1 << 2) + (y1 << 13));
if (mask[i])
*zptr = (stencil[i] & 0xf) << 28;
}
FFBFifo(fmesa, 2);
fmesa->regs->fbc = fmesa->fbc;
fmesa->regs->ppc = fmesa->ppc;
fmesa->ffbScreen->rp_active = 1;
if (!fmesa->hw_locked)
UNLOCK_HARDWARE(fmesa);
}
}
static void FFBReadStencilSpan( GLcontext *ctx,
struct gl_renderbuffer *rb,
GLuint n, GLint x, GLint y,
void *values)
{
GLubyte *stencil = (GLubyte *) values;
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
__DRIdrawable *dPriv = fmesa->driDrawable;
GLuint *zptr;
GLuint i;
#ifdef STENCIL_TRACE
fprintf(stderr, "FFBReadStencilSpan: n(%d) x(%d) y(%d)\n",
(int) n, x, y);
#endif
if (!fmesa->hw_locked)
LOCK_HARDWARE(fmesa);
FFBFifo(fmesa, 1);
fmesa->regs->fbc = FFB_FBC_RB_C;
fmesa->ffbScreen->rp_active = 1;
FFBWait(fmesa, fmesa->regs);
y = (dPriv->h - y);
zptr = (GLuint *)
((char *)fmesa->sfb32 +
((dPriv->x + x) << 2) +
((dPriv->y + y) << 13));
for (i = 0; i < n; i++) {
stencil[i] = (*zptr >> 28) & 0xf;
zptr++;
}
FFBFifo(fmesa, 1);
fmesa->regs->fbc = fmesa->fbc;
fmesa->ffbScreen->rp_active = 1;
if (!fmesa->hw_locked)
UNLOCK_HARDWARE(fmesa);
}
static void FFBReadStencilPixels( GLcontext *ctx,
struct gl_renderbuffer *rb,
GLuint n, const GLint x[], const GLint y[],
void *values )
{
GLubyte *stencil = (GLubyte *) values;
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
__DRIdrawable *dPriv = fmesa->driDrawable;
char *zbase;
GLuint i;
#ifdef STENCIL_TRACE
fprintf(stderr, "FFBReadStencilPixels: n(%d)\n", (int) n);
#endif
if (!fmesa->hw_locked)
LOCK_HARDWARE(fmesa);
FFBFifo(fmesa, 1);
fmesa->regs->fbc = FFB_FBC_RB_C;
fmesa->ffbScreen->rp_active = 1;
FFBWait(fmesa, fmesa->regs);
zbase = ((char *)fmesa->sfb32 +
(dPriv->x << 2) + (dPriv->y << 13));
for (i = 0; i < n; i++) {
GLint y1 = (dPriv->h - y[i]);
GLint x1 = x[i];
GLuint *zptr;
zptr = (GLuint *)
(zbase + (x1 << 2) + (y1 << 13));
stencil[i] = (*zptr >> 28) & 0xf;
}
FFBFifo(fmesa, 1);
fmesa->regs->fbc = fmesa->fbc;
fmesa->ffbScreen->rp_active = 1;
if (!fmesa->hw_locked)
UNLOCK_HARDWARE(fmesa);
}
/**
* Plug in the Get/Put routines for the given driRenderbuffer.
*/
void
ffbSetStencilFunctions(driRenderbuffer *drb, const GLvisual *vis)
{
assert(drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT);
drb->Base.GetRow = FFBReadStencilSpan;
drb->Base.GetValues = FFBReadStencilPixels;
drb->Base.PutRow = FFBWriteStencilSpan;
/*drb->Base.PutMonoRow = FFBWriteMonoStencilSpan;*/
drb->Base.PutValues = FFBWriteStencilPixels;
drb->Base.PutMonoValues = NULL;
}
|
