summaryrefslogtreecommitdiff
path: root/src/mesa/drivers/dri/r128/r128_context.c
blob: 73bd3bebd68193a097301cf8edb723d12e3a5a7b (plain)
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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
/* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_context.c,v 1.8 2002/10/30 12:51:38 alanh 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>
 *
 */

#include "glheader.h"
#include "context.h"
#include "simple_list.h"
#include "imports.h"
#include "matrix.h"
#include "extensions.h"

#include "swrast/swrast.h"
#include "swrast_setup/swrast_setup.h"
#include "array_cache/acache.h"

#include "tnl/tnl.h"
#include "tnl/t_pipeline.h"

#include "drivers/common/driverfuncs.h"

#include "r128_context.h"
#include "r128_ioctl.h"
#include "r128_dd.h"
#include "r128_state.h"
#include "r128_span.h"
#include "r128_tex.h"
#include "r128_tris.h"

#include "vblank.h"
#include "utils.h"
#include "texmem.h"
#include "xmlpool.h" /* for symbolic values of enum-type options */

#ifndef R128_DEBUG
int R128_DEBUG = 0;
#endif

#define need_GL_ARB_multisample
#define need_GL_ARB_texture_compression
#define need_GL_EXT_blend_minmax
#define need_GL_EXT_fog_coord
#define need_GL_EXT_secondary_color
#include "extension_helper.h"

const struct dri_extension card_extensions[] =
{
    { "GL_ARB_multisample",                GL_ARB_multisample_functions },
    { "GL_ARB_multitexture",               NULL },
    { "GL_ARB_texture_compression",        GL_ARB_texture_compression_functions },
    { "GL_ARB_texture_env_add",            NULL },
    { "GL_ARB_texture_mirrored_repeat",    NULL },
    { "GL_EXT_blend_subtract",             GL_EXT_blend_minmax_functions },
    { "GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
    { "GL_EXT_texture_edge_clamp",         NULL },
    { "GL_EXT_secondary_color",            GL_EXT_secondary_color_functions },
    { "GL_EXT_stencil_wrap",               NULL },
    { "GL_MESA_ycbcr_texture",             NULL },
    { "GL_NV_blend_square",                NULL },
    { "GL_SGIS_generate_mipmap",           NULL },
    { NULL,                                NULL }
};

static const struct dri_debug_control debug_control[] =
{
    { "ioctl", DEBUG_VERBOSE_IOCTL },
    { "verb",  DEBUG_VERBOSE_MSG },
    { "dri",   DEBUG_VERBOSE_DRI },
    { "2d",    DEBUG_VERBOSE_2D },
    { "sync",  DEBUG_ALWAYS_SYNC },
    { "api",   DEBUG_VERBOSE_API },
    { "fall",  DEBUG_VERBOSE_FALL },
    { NULL,    0 }
};

/* Create the device specific context.
 */
GLboolean r128CreateContext( const __GLcontextModes *glVisual,
			     __DRIcontextPrivate *driContextPriv,
                             void *sharedContextPrivate )
{
   GLcontext *ctx, *shareCtx;
   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
   struct dd_function_table functions;
   r128ContextPtr rmesa;
   r128ScreenPtr r128scrn;
   int i;

   /* Allocate the r128 context */
   rmesa = (r128ContextPtr) CALLOC( sizeof(*rmesa) );
   if ( !rmesa )
      return GL_FALSE;

   /* Init default driver functions then plug in our Radeon-specific functions
    * (the texture functions are especially important)
    */
   _mesa_init_driver_functions( &functions );
   r128InitDriverFuncs( &functions );
   r128InitIoctlFuncs( &functions );
   r128InitTextureFuncs( &functions );

   /* Allocate the Mesa context */
   if (sharedContextPrivate)
      shareCtx = ((r128ContextPtr) sharedContextPrivate)->glCtx;
   else 
      shareCtx = NULL;
   rmesa->glCtx = _mesa_create_context(glVisual, shareCtx,
                                       &functions, (void *) rmesa);
   if (!rmesa->glCtx) {
      FREE(rmesa);
      return GL_FALSE;
   }
   driContextPriv->driverPrivate = rmesa;
   ctx = rmesa->glCtx;

   rmesa->driContext = driContextPriv;
   rmesa->driScreen = sPriv;
   rmesa->driDrawable = NULL;
   rmesa->hHWContext = driContextPriv->hHWContext;
   rmesa->driHwLock = &sPriv->pSAREA->lock;
   rmesa->driFd = sPriv->fd;

   r128scrn = rmesa->r128Screen = (r128ScreenPtr)(sPriv->private);

   /* Parse configuration files */
   driParseConfigFiles (&rmesa->optionCache, &r128scrn->optionCache,
                        r128scrn->driScreen->myNum, "r128");

   rmesa->sarea = (drm_r128_sarea_t *)((char *)sPriv->pSAREA +
				     r128scrn->sarea_priv_offset);

   rmesa->CurrentTexObj[0] = NULL;
   rmesa->CurrentTexObj[1] = NULL;

   (void) memset( rmesa->texture_heaps, 0, sizeof( rmesa->texture_heaps ) );
   make_empty_list( & rmesa->swapped );

   rmesa->nr_heaps = r128scrn->numTexHeaps;
   for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) {
      rmesa->texture_heaps[i] = driCreateTextureHeap( i, rmesa,
	    r128scrn->texSize[i],
	    12,
	    R128_NR_TEX_REGIONS,
	    (drmTextureRegionPtr)rmesa->sarea->tex_list[i],
	    &rmesa->sarea->tex_age[i],
	    &rmesa->swapped,
	    sizeof( r128TexObj ),
	    (destroy_texture_object_t *) r128DestroyTexObj );

      driSetTextureSwapCounterLocation( rmesa->texture_heaps[i],
					& rmesa->c_textureSwaps );
   }
   rmesa->texture_depth = driQueryOptioni (&rmesa->optionCache,
					   "texture_depth");
   if (rmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
      rmesa->texture_depth = ( r128scrn->cpp == 4 ) ?
	 DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;


   rmesa->RenderIndex = -1;		/* Impossible value */
   rmesa->vert_buf = NULL;
   rmesa->num_verts = 0;
   rmesa->tnl_state = ~0;

   /* Set the maximum texture size small enough that we can guarentee that
    * all texture units can bind a maximal texture and have them both in
    * texturable memory at once.
    */

   ctx->Const.MaxTextureUnits = 2;
   ctx->Const.MaxTextureImageUnits = 2;
   ctx->Const.MaxTextureCoordUnits = 2;

   driCalculateMaxTextureLevels( rmesa->texture_heaps,
				 rmesa->nr_heaps,
				 & ctx->Const,
				 4,
				 10, /* max 2D texture size is 1024x1024 */
				 0,  /* 3D textures unsupported. */
				 0,  /* cube textures unsupported. */
				 0,  /* texture rectangles unsupported. */
				 11,
				 GL_FALSE );

   /* No wide points.
    */
   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSize = 1.0;
   ctx->Const.MaxPointSizeAA = 1.0;

   /* No wide lines.
    */
   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 1.0;
   ctx->Const.MaxLineWidthAA = 1.0;
   ctx->Const.LineWidthGranularity = 1.0;

#if ENABLE_PERF_BOXES
   rmesa->boxes = driQueryOptionb(&rmesa->optionCache, "performance_boxes");
#endif

   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext( ctx );
   _ac_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );

   /* Install the customized pipeline:
    */
/*     _tnl_destroy_pipeline( ctx ); */
/*     _tnl_install_pipeline( ctx, r128_pipeline ); */

   /* Configure swrast and T&L to match hardware characteristics:
    */
   _swrast_allow_pixel_fog( ctx, GL_FALSE );
   _swrast_allow_vertex_fog( ctx, GL_TRUE );
   _tnl_allow_pixel_fog( ctx, GL_FALSE );
   _tnl_allow_vertex_fog( ctx, GL_TRUE );

   driInitExtensions( ctx, card_extensions, GL_TRUE );
   if (sPriv->drmMinor >= 4)
      _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );

   r128InitTriFuncs( ctx );
   r128DDInitStateFuncs( ctx );
   r128DDInitSpanFuncs( ctx );
   r128DDInitState( rmesa );

   rmesa->vblank_flags = (rmesa->r128Screen->irq != 0)
       ? driGetDefaultVBlankFlags(&rmesa->optionCache) : VBLANK_FLAG_NO_IRQ;

   driContextPriv->driverPrivate = (void *)rmesa;

#if DO_DEBUG
   R128_DEBUG = driParseDebugString( getenv( "R128_DEBUG" ),
				     debug_control );
#endif

   if (driQueryOptionb(&rmesa->optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D acceleration\n");
      FALLBACK(rmesa, R128_FALLBACK_DISABLE, 1);
   }

   return GL_TRUE;
}

/* Destroy the device specific context.
 */
void r128DestroyContext( __DRIcontextPrivate *driContextPriv  )
{
   r128ContextPtr rmesa = (r128ContextPtr) driContextPriv->driverPrivate;

   assert(rmesa);  /* should never be null */
   if ( rmesa ) {
      GLboolean   release_texture_heaps;


      release_texture_heaps = (rmesa->glCtx->Shared->RefCount == 1);

      _swsetup_DestroyContext( rmesa->glCtx );
      _tnl_DestroyContext( rmesa->glCtx );
      _ac_DestroyContext( rmesa->glCtx );
      _swrast_DestroyContext( rmesa->glCtx );

      /* free the Mesa context */
      rmesa->glCtx->DriverCtx = NULL;
      _mesa_destroy_context(rmesa->glCtx);

      if ( release_texture_heaps ) {
         /* This share group is about to go away, free our private
          * texture object data.
          */
         int i;

         for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) {
	    driDestroyTextureHeap( rmesa->texture_heaps[ i ] );
	    rmesa->texture_heaps[ i ] = NULL;
         }

	 assert( is_empty_list( & rmesa->swapped ) );
      }

      /* free the option cache */
      driDestroyOptionCache (&rmesa->optionCache);

      FREE( rmesa );
   }

#if 0
   /* Use this to force shared object profiling. */
   glx_fini_prof();
#endif
}


/* Force the context `c' to be the current context and associate with it
 * buffer `b'.
 */
GLboolean
r128MakeCurrent( __DRIcontextPrivate *driContextPriv,
                 __DRIdrawablePrivate *driDrawPriv,
                 __DRIdrawablePrivate *driReadPriv )
{
   if ( driContextPriv ) {
      GET_CURRENT_CONTEXT(ctx);
      r128ContextPtr oldR128Ctx = ctx ? R128_CONTEXT(ctx) : NULL;
      r128ContextPtr newR128Ctx = (r128ContextPtr) driContextPriv->driverPrivate;

      if ( newR128Ctx != oldR128Ctx ) {
	 newR128Ctx->new_state |= R128_NEW_CONTEXT;
	 newR128Ctx->dirty = R128_UPLOAD_ALL;
      }

      driDrawableInitVBlank( driDrawPriv, newR128Ctx->vblank_flags );
      newR128Ctx->driDrawable = driDrawPriv;

      _mesa_make_current( newR128Ctx->glCtx,
                          (GLframebuffer *) driDrawPriv->driverPrivate,
                          (GLframebuffer *) driReadPriv->driverPrivate );

      newR128Ctx->new_state |= R128_NEW_WINDOW | R128_NEW_CLIP;
   } else {
      _mesa_make_current( NULL, NULL, NULL );
   }

   return GL_TRUE;
}


/* Force the context `c' to be unbound from its buffer.
 */
GLboolean
r128UnbindContext( __DRIcontextPrivate *driContextPriv )
{
   return GL_TRUE;
}