summaryrefslogtreecommitdiff
path: root/src/mesa/drivers/dri/i810/i810screen.c
blob: e88f38841ee6bfcdaa98599a623cabf104caad00 (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
/**************************************************************************

Copyright 1998-1999 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 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 PRECISION INSIGHT 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.

**************************************************************************/
/* $XFree86: xc/lib/GL/mesa/src/drv/i810/i810screen.c,v 1.2 2002/10/30 12:51:33 alanh Exp $ */

/*
 * Authors:
 *   Keith Whitwell <keith@tungstengraphics.com>
 *
 */


#include "main/glheader.h"
#include "main/imports.h"
#include "main/context.h"
#include "main/framebuffer.h"
#include "main/fbobject.h"
#include "main/matrix.h"
#include "main/renderbuffer.h"
#include "main/simple_list.h"
#include "utils.h"

#include "i810screen.h"
#include "i810_dri.h"

#include "i810state.h"
#include "i810tex.h"
#include "i810span.h"
#include "i810tris.h"
#include "i810ioctl.h"

#include "GL/internal/dri_interface.h"

extern const struct dri_extension card_extensions[];

static const __DRIconfig **
i810FillInModes( __DRIscreenPrivate *psp,
		 unsigned pixel_bits, unsigned depth_bits,
		 unsigned stencil_bits, GLboolean have_back_buffer )
{
    __DRIconfig **configs;
    __GLcontextModes * m;
    unsigned depth_buffer_factor;
    unsigned back_buffer_factor;
    unsigned i;

    /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
     * enough to add support.  Basically, if a context is created with an
     * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
     * will never be used.
     */
    static const GLenum back_buffer_modes[] = {
	GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
    };

    uint8_t depth_bits_array[2];
    uint8_t stencil_bits_array[2];

    depth_bits_array[0] = depth_bits;
    depth_bits_array[1] = depth_bits;

    /* Just like with the accumulation buffer, always provide some modes
     * with a stencil buffer.  It will be a sw fallback, but some apps won't
     * care about that.
     */
    stencil_bits_array[0] = 0;
    stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;

    depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1;
    back_buffer_factor  = (have_back_buffer) ? 2 : 1;

    configs = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
			       depth_bits_array, stencil_bits_array,
			       depth_buffer_factor,
			       back_buffer_modes, back_buffer_factor);
    if (configs == NULL) {
	fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
		 __func__, __LINE__ );
	return NULL;
    }

    /* Mark the visual as slow if there are "fake" stencil bits.
     */
    for (i = 0; configs[i]; i++) {
	m = &configs[i]->modes;
	if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) {
	    m->visualRating = GLX_SLOW_CONFIG;
	}
    }

    return (const __DRIconfig **) configs;
}

     
/*  static int i810_malloc_proxy_buf(drmBufMapPtr buffers) */
/*  { */
/*     char *buffer; */
/*     drmBufPtr buf; */
/*     int i; */

/*     buffer = CALLOC(I810_DMA_BUF_SZ); */
/*     if(buffer == NULL) return -1; */
/*     for(i = 0; i < I810_DMA_BUF_NR; i++) { */
/*        buf = &(buffers->list[i]); */
/*        buf->address = (drmAddress)buffer; */
/*     } */
/*     return 0; */
/*  } */

static drmBufMapPtr i810_create_empty_buffers(void)
{
   drmBufMapPtr retval;

   retval = (drmBufMapPtr)ALIGN_MALLOC(sizeof(drmBufMap), 32);
   if(retval == NULL) return NULL;
   memset(retval, 0, sizeof(drmBufMap));
   retval->list = (drmBufPtr)ALIGN_MALLOC(sizeof(drmBuf) * I810_DMA_BUF_NR, 32);
   if(retval->list == NULL) {
      ALIGN_FREE(retval);
      return NULL;
   }
   memset(retval->list, 0, sizeof(drmBuf) * I810_DMA_BUF_NR);
   return retval;
}


static const __DRIconfig **
i810InitScreen(__DRIscreen *sPriv)
{
   static const __DRIversion ddx_expected = { 1, 0, 0 };
   static const __DRIversion dri_expected = { 4, 0, 0 };
   static const __DRIversion drm_expected = { 1, 2, 0 };
   i810ScreenPrivate *i810Screen;
   I810DRIPtr         gDRIPriv = (I810DRIPtr)sPriv->pDevPriv;

   if ( ! driCheckDriDdxDrmVersions2( "i810",
				      &sPriv->dri_version, & dri_expected,
				      &sPriv->ddx_version, & ddx_expected,
				      &sPriv->drm_version, & drm_expected ) ) {
      return NULL;
   }

   driInitExtensions( NULL, card_extensions, GL_TRUE );

   if (sPriv->devPrivSize != sizeof(I810DRIRec)) {
      fprintf(stderr,"\nERROR!  sizeof(I810DRIRec) does not match passed size from device driver\n");
      return GL_FALSE;
   }

   /* Allocate the private area */
   i810Screen = (i810ScreenPrivate *)CALLOC(sizeof(i810ScreenPrivate));
   if (!i810Screen) {
      __driUtilMessage("i810InitDriver: alloc i810ScreenPrivate struct failed");
      return GL_FALSE;
   }

   i810Screen->driScrnPriv = sPriv;
   sPriv->private = (void *)i810Screen;

   i810Screen->deviceID=gDRIPriv->deviceID;
   i810Screen->width=gDRIPriv->width;
   i810Screen->height=gDRIPriv->height;
   i810Screen->mem=gDRIPriv->mem;
   i810Screen->cpp=gDRIPriv->cpp;
   i810Screen->fbStride=gDRIPriv->fbStride;
   i810Screen->fbOffset=gDRIPriv->fbOffset;

   if (gDRIPriv->bitsPerPixel == 15)
      i810Screen->fbFormat = DV_PF_555;
   else
      i810Screen->fbFormat = DV_PF_565;

   i810Screen->backOffset=gDRIPriv->backOffset;
   i810Screen->depthOffset=gDRIPriv->depthOffset;
   i810Screen->backPitch = gDRIPriv->auxPitch;
   i810Screen->backPitchBits = gDRIPriv->auxPitchBits;
   i810Screen->textureOffset=gDRIPriv->textureOffset;
   i810Screen->textureSize=gDRIPriv->textureSize;
   i810Screen->logTextureGranularity = gDRIPriv->logTextureGranularity;

   i810Screen->bufs = i810_create_empty_buffers();
   if (i810Screen->bufs == NULL) {
      __driUtilMessage("i810InitDriver: i810_create_empty_buffers() failed");
      FREE(i810Screen);
      return GL_FALSE;
   }

   i810Screen->back.handle = gDRIPriv->backbuffer;
   i810Screen->back.size = gDRIPriv->backbufferSize;

   if (drmMap(sPriv->fd,
	      i810Screen->back.handle,
	      i810Screen->back.size,
	      (drmAddress *)&i810Screen->back.map) != 0) {
      FREE(i810Screen);
      sPriv->private = NULL;
      __driUtilMessage("i810InitDriver: drmMap failed");
      return GL_FALSE;
   }

   i810Screen->depth.handle = gDRIPriv->depthbuffer;
   i810Screen->depth.size = gDRIPriv->depthbufferSize;

   if (drmMap(sPriv->fd,
	      i810Screen->depth.handle,
	      i810Screen->depth.size,
	      (drmAddress *)&i810Screen->depth.map) != 0) {
      drmUnmap(i810Screen->back.map, i810Screen->back.size);
      FREE(i810Screen);
      sPriv->private = NULL;
      __driUtilMessage("i810InitDriver: drmMap (2) failed");
      return GL_FALSE;
   }

   i810Screen->tex.handle = gDRIPriv->textures;
   i810Screen->tex.size = gDRIPriv->textureSize;

   if (drmMap(sPriv->fd,
	      i810Screen->tex.handle,
	      i810Screen->tex.size,
	      (drmAddress *)&i810Screen->tex.map) != 0) {
      drmUnmap(i810Screen->back.map, i810Screen->back.size);
      drmUnmap(i810Screen->depth.map, i810Screen->depth.size);
      FREE(i810Screen);
      sPriv->private = NULL;
      __driUtilMessage("i810InitDriver: drmMap (3) failed");
      return GL_FALSE;
   }

   i810Screen->sarea_priv_offset = gDRIPriv->sarea_priv_offset;

   return i810FillInModes(sPriv, 16, 16, 0, 1);
}

static void
i810DestroyScreen(__DRIscreenPrivate *sPriv)
{
   i810ScreenPrivate *i810Screen = (i810ScreenPrivate *)sPriv->private;

   /* Need to unmap all the bufs and maps here:
    */
   drmUnmap(i810Screen->back.map, i810Screen->back.size);
   drmUnmap(i810Screen->depth.map, i810Screen->depth.size);
   drmUnmap(i810Screen->tex.map, i810Screen->tex.size);

   FREE(i810Screen);
   sPriv->private = NULL;
}


/**
 * Create a buffer which corresponds to the window.
 */
static GLboolean
i810CreateBuffer( __DRIscreenPrivate *driScrnPriv,
                  __DRIdrawablePrivate *driDrawPriv,
                  const __GLcontextModes *mesaVis,
                  GLboolean isPixmap )
{
   i810ScreenPrivate *screen = (i810ScreenPrivate *) driScrnPriv->private;

   if (isPixmap) {
      return GL_FALSE; /* not implemented */
   }
   else {
      struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);

      {
         driRenderbuffer *frontRb
            = driNewRenderbuffer(GL_RGBA,
                                 driScrnPriv->pFB,
                                 screen->cpp,
                                 /*screen->frontOffset*/0, screen->backPitch,
                                 driDrawPriv);
         i810SetSpanFunctions(frontRb, mesaVis);
         _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
      }

      if (mesaVis->doubleBufferMode) {
         driRenderbuffer *backRb
            = driNewRenderbuffer(GL_RGBA,
                                 screen->back.map,
                                 screen->cpp,
                                 screen->backOffset, screen->backPitch,
                                 driDrawPriv);
         i810SetSpanFunctions(backRb, mesaVis);
         _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
      }

      if (mesaVis->depthBits == 16) {
         driRenderbuffer *depthRb
            = driNewRenderbuffer(GL_DEPTH_COMPONENT16,
                                 screen->depth.map,
                                 screen->cpp,
                                 screen->depthOffset, screen->backPitch,
                                 driDrawPriv);
         i810SetSpanFunctions(depthRb, mesaVis);
         _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
      }

      _mesa_add_soft_renderbuffers(fb,
                                   GL_FALSE, /* color */
                                   GL_FALSE, /* depth */
                                   mesaVis->stencilBits > 0,
                                   mesaVis->accumRedBits > 0,
                                   GL_FALSE, /* alpha */
                                   GL_FALSE /* aux */);
      driDrawPriv->driverPrivate = (void *) fb;

      return (driDrawPriv->driverPrivate != NULL);
   }
}


static void
i810DestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
    _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}

const struct __DriverAPIRec driDriverAPI = {
   .InitScreen      = i810InitScreen,
   .DestroyScreen   = i810DestroyScreen,
   .CreateContext   = i810CreateContext,
   .DestroyContext  = i810DestroyContext,
   .CreateBuffer    = i810CreateBuffer,
   .DestroyBuffer   = i810DestroyBuffer,
   .SwapBuffers     = i810SwapBuffers,
   .MakeCurrent     = i810MakeCurrent,
   .UnbindContext   = i810UnbindContext,
   .GetSwapInfo     = NULL,
   .GetDrawableMSC  = NULL,
   .WaitForMSC      = NULL,
   .WaitForSBC      = NULL,
   .SwapBuffersMSC  = NULL
};