2 * Copyright 2000-2001 VA Linux Systems, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
27 * MGA screen and context initialization / creation code.
29 * \author Keith Whitwell <keith@tungstengraphics.com>
36 #include "mga_xmesa.h"
37 #include "main/context.h"
38 #include "main/simple_list.h"
39 #include "main/imports.h"
40 #include "main/framebuffer.h"
41 #include "main/renderbuffer.h"
43 #include "swrast/swrast.h"
44 #include "swrast_setup/swrast_setup.h"
48 #include "tnl/t_pipeline.h"
50 #include "drivers/common/driverfuncs.h"
60 #include "mga_xmesa.h"
66 #include "drirenderbuffer.h"
68 #include "GL/internal/dri_interface.h"
70 #define need_GL_ARB_vertex_program
71 #define need_GL_EXT_fog_coord
72 #define need_GL_EXT_gpu_program_parameters
73 #define need_GL_EXT_secondary_color
75 #define need_GL_EXT_paletted_texture
77 #define need_GL_APPLE_vertex_array_object
78 #define need_GL_NV_vertex_program
79 #include "main/remap_helper.h"
85 PUBLIC
const char __driConfigOptions
[] =
87 DRI_CONF_SECTION_PERFORMANCE
88 DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0
)
90 DRI_CONF_SECTION_QUALITY
91 DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB
)
92 DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER
)
94 DRI_CONF_SECTION_SOFTWARE
95 DRI_CONF_ARB_VERTEX_PROGRAM(true)
96 DRI_CONF_NV_VERTEX_PROGRAM(true)
98 DRI_CONF_SECTION_DEBUG
99 DRI_CONF_NO_RAST(false)
102 static const GLuint __driNConfigOptions
= 6;
108 static const __DRIconfig
**
109 mgaFillInModes( __DRIscreen
*psp
,
110 unsigned pixel_bits
, unsigned depth_bits
,
111 unsigned stencil_bits
, GLboolean have_back_buffer
)
113 __DRIconfig
**configs
;
114 __GLcontextModes
* m
;
115 unsigned depth_buffer_factor
;
116 unsigned back_buffer_factor
;
121 /* GLX_SWAP_COPY_OML is only supported because the MGA driver doesn't
122 * support pageflipping at all.
124 static const GLenum back_buffer_modes
[] = {
125 GLX_NONE
, GLX_SWAP_UNDEFINED_OML
, GLX_SWAP_COPY_OML
128 uint8_t depth_bits_array
[3];
129 uint8_t stencil_bits_array
[3];
130 uint8_t msaa_samples_array
[1];
133 depth_bits_array
[0] = 0;
134 depth_bits_array
[1] = depth_bits
;
135 depth_bits_array
[2] = depth_bits
;
137 /* Just like with the accumulation buffer, always provide some modes
138 * with a stencil buffer. It will be a sw fallback, but some apps won't
141 stencil_bits_array
[0] = 0;
142 stencil_bits_array
[1] = 0;
143 stencil_bits_array
[2] = (stencil_bits
== 0) ? 8 : stencil_bits
;
145 msaa_samples_array
[0] = 0;
147 depth_buffer_factor
= ((depth_bits
!= 0) || (stencil_bits
!= 0)) ? 3 : 1;
148 back_buffer_factor
= (have_back_buffer
) ? 2 : 1;
150 if ( pixel_bits
== 16 ) {
152 fb_type
= GL_UNSIGNED_SHORT_5_6_5
;
156 fb_type
= GL_UNSIGNED_INT_8_8_8_8_REV
;
159 configs
= driCreateConfigs(fb_format
, fb_type
,
160 depth_bits_array
, stencil_bits_array
,
162 back_buffer_modes
, back_buffer_factor
,
163 msaa_samples_array
, 1, GL_TRUE
);
164 if (configs
== NULL
) {
165 fprintf( stderr
, "[%s:%u] Error creating FBConfig!\n",
166 __func__
, __LINE__
);
170 /* Mark the visual as slow if there are "fake" stencil bits.
172 for (i
= 0; configs
[i
]; i
++) {
173 m
= &configs
[i
]->modes
;
174 if ((m
->stencilBits
!= 0) && (m
->stencilBits
!= stencil_bits
)) {
175 m
->visualRating
= GLX_SLOW_CONFIG
;
179 return (const __DRIconfig
**) configs
;
182 const __DRIextension
*mgaScreenExtensions
[] = {
183 &driReadDrawableExtension
,
184 &driSwapControlExtension
.base
,
185 &driFrameTrackingExtension
.base
,
186 &driMediaStreamCounterExtension
.base
,
191 mgaInitDriver(__DRIscreen
*sPriv
)
193 mgaScreenPrivate
*mgaScreen
;
194 MGADRIPtr serverInfo
= (MGADRIPtr
)sPriv
->pDevPriv
;
196 if (sPriv
->devPrivSize
!= sizeof(MGADRIRec
)) {
197 fprintf(stderr
,"\nERROR! sizeof(MGADRIRec) does not match passed size from device driver\n");
201 /* Allocate the private area */
202 mgaScreen
= (mgaScreenPrivate
*)MALLOC(sizeof(mgaScreenPrivate
));
204 __driUtilMessage("Couldn't malloc screen struct");
208 mgaScreen
->sPriv
= sPriv
;
209 sPriv
->private = (void *)mgaScreen
;
211 if (sPriv
->drm_version
.minor
>= 1) {
213 drm_mga_getparam_t gp
;
215 gp
.param
= MGA_PARAM_IRQ_NR
;
216 gp
.value
= &mgaScreen
->irq
;
219 ret
= drmCommandWriteRead( sPriv
->fd
, DRM_MGA_GETPARAM
,
222 fprintf(stderr
, "drmMgaGetParam (MGA_PARAM_IRQ_NR): %d\n", ret
);
224 sPriv
->private = NULL
;
229 sPriv
->extensions
= mgaScreenExtensions
;
231 if (serverInfo
->chipset
!= MGA_CARD_TYPE_G200
&&
232 serverInfo
->chipset
!= MGA_CARD_TYPE_G400
) {
234 sPriv
->private = NULL
;
235 __driUtilMessage("Unrecognized chipset");
240 mgaScreen
->chipset
= serverInfo
->chipset
;
241 mgaScreen
->cpp
= serverInfo
->cpp
;
243 mgaScreen
->agpMode
= serverInfo
->agpMode
;
245 mgaScreen
->frontPitch
= serverInfo
->frontPitch
;
246 mgaScreen
->frontOffset
= serverInfo
->frontOffset
;
247 mgaScreen
->backOffset
= serverInfo
->backOffset
;
248 mgaScreen
->backPitch
= serverInfo
->backPitch
;
249 mgaScreen
->depthOffset
= serverInfo
->depthOffset
;
250 mgaScreen
->depthPitch
= serverInfo
->depthPitch
;
253 /* The only reason that the MMIO region needs to be accessable and the
254 * primary DMA region base address needs to be known is so that the driver
255 * can busy wait for certain DMA operations to complete (see
256 * mgaWaitForFrameCompletion in mgaioctl.c).
258 * Starting with MGA DRM version 3.2, these are completely unneeded as
259 * there is a new, in-kernel mechanism for handling the wait.
262 if (mgaScreen
->sPriv
->drm_version
.minor
< 2) {
263 mgaScreen
->mmio
.handle
= serverInfo
->registers
.handle
;
264 mgaScreen
->mmio
.size
= serverInfo
->registers
.size
;
265 if ( drmMap( sPriv
->fd
,
266 mgaScreen
->mmio
.handle
, mgaScreen
->mmio
.size
,
267 &mgaScreen
->mmio
.map
) < 0 ) {
269 sPriv
->private = NULL
;
270 __driUtilMessage( "Couldn't map MMIO registers" );
274 mgaScreen
->primary
.handle
= serverInfo
->primary
.handle
;
275 mgaScreen
->primary
.size
= serverInfo
->primary
.size
;
278 (void) memset( & mgaScreen
->primary
, 0, sizeof( mgaScreen
->primary
) );
279 (void) memset( & mgaScreen
->mmio
, 0, sizeof( mgaScreen
->mmio
) );
282 mgaScreen
->textureOffset
[MGA_CARD_HEAP
] = serverInfo
->textureOffset
;
283 mgaScreen
->textureOffset
[MGA_AGP_HEAP
] = (serverInfo
->agpTextureOffset
|
284 PDEA_pagpxfer_enable
| 1);
286 mgaScreen
->textureSize
[MGA_CARD_HEAP
] = serverInfo
->textureSize
;
287 mgaScreen
->textureSize
[MGA_AGP_HEAP
] = serverInfo
->agpTextureSize
;
290 /* The texVirtual array stores the base addresses in the CPU's address
291 * space of the texture memory pools. The base address of the on-card
292 * memory pool is calculated as an offset of the base of video memory. The
293 * AGP texture pool has to be mapped into the processes address space by
297 mgaScreen
->texVirtual
[MGA_CARD_HEAP
] = (char *)(mgaScreen
->sPriv
->pFB
+
298 serverInfo
->textureOffset
);
300 if ( serverInfo
->agpTextureSize
> 0 ) {
301 if (drmMap(sPriv
->fd
, serverInfo
->agpTextureOffset
,
302 serverInfo
->agpTextureSize
,
303 (drmAddress
*)&mgaScreen
->texVirtual
[MGA_AGP_HEAP
]) != 0) {
305 sPriv
->private = NULL
;
306 __driUtilMessage("Couldn't map agptexture region");
312 /* For calculating setupdma addresses.
315 mgaScreen
->bufs
= drmMapBufs(sPriv
->fd
);
316 if (!mgaScreen
->bufs
) {
318 sPriv
->private = NULL
;
319 __driUtilMessage("Couldn't map dma buffers");
322 mgaScreen
->sarea_priv_offset
= serverInfo
->sarea_priv_offset
;
324 /* parse information in __driConfigOptions */
325 driParseOptionInfo (&mgaScreen
->optionCache
,
326 __driConfigOptions
, __driNConfigOptions
);
333 mgaDestroyScreen(__DRIscreen
*sPriv
)
335 mgaScreenPrivate
*mgaScreen
= (mgaScreenPrivate
*) sPriv
->private;
337 if (MGA_DEBUG
&DEBUG_VERBOSE_DRI
)
338 fprintf(stderr
, "mgaDestroyScreen\n");
340 drmUnmapBufs(mgaScreen
->bufs
);
343 /* free all option information */
344 driDestroyOptionInfo (&mgaScreen
->optionCache
);
347 sPriv
->private = NULL
;
351 extern const struct tnl_pipeline_stage _mga_render_stage
;
353 static const struct tnl_pipeline_stage
*mga_pipeline
[] = {
354 &_tnl_vertex_transform_stage
,
355 &_tnl_normal_transform_stage
,
356 &_tnl_lighting_stage
,
357 &_tnl_fog_coordinate_stage
,
359 &_tnl_texture_transform_stage
,
360 &_tnl_vertex_program_stage
,
362 /* REMOVE: point attenuation stage */
364 &_mga_render_stage
, /* ADD: unclipped rastersetup-to-dma */
365 /* Need new ioctl for wacceptseq */
372 static const struct dri_extension g400_extensions
[] =
374 { "GL_ARB_multitexture", NULL
},
375 { "GL_ARB_texture_env_add", NULL
},
376 { "GL_ARB_texture_env_combine", NULL
},
377 { "GL_ARB_texture_env_crossbar", NULL
},
378 { "GL_EXT_texture_env_combine", NULL
},
379 { "GL_EXT_texture_edge_clamp", NULL
},
380 { "GL_ATI_texture_env_combine3", NULL
},
384 static const struct dri_extension card_extensions
[] =
386 { "GL_ARB_texture_rectangle", NULL
},
387 { "GL_EXT_blend_logic_op", NULL
},
388 { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions
},
389 /* paletted_textures currently doesn't work, but we could fix them later */
390 #if defined( need_GL_EXT_paletted_texture )
391 { "GL_EXT_shared_texture_palette", NULL
},
392 { "GL_EXT_paletted_texture", GL_EXT_paletted_texture_functions
},
394 { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions
},
395 { "GL_EXT_stencil_wrap", NULL
},
396 { "GL_APPLE_vertex_array_object", GL_APPLE_vertex_array_object_functions
},
397 { "GL_MESA_ycbcr_texture", NULL
},
398 { "GL_SGIS_generate_mipmap", NULL
},
402 static const struct dri_extension ARB_vp_extensions
[] = {
403 { "GL_ARB_vertex_program", GL_ARB_vertex_program_functions
},
404 { "GL_EXT_gpu_program_parameters", GL_EXT_gpu_program_parameters_functions
},
408 static const struct dri_extension NV_vp_extensions
[] = {
409 { "GL_NV_vertex_program", GL_NV_vertex_program_functions
},
410 { "GL_NV_vertex_program1_1", NULL
},
414 static const struct dri_debug_control debug_control
[] =
416 { "fall", DEBUG_VERBOSE_FALLBACK
},
417 { "tex", DEBUG_VERBOSE_TEXTURE
},
418 { "ioctl", DEBUG_VERBOSE_IOCTL
},
419 { "verb", DEBUG_VERBOSE_MSG
},
420 { "dri", DEBUG_VERBOSE_DRI
},
426 mgaCreateContext( const __GLcontextModes
*mesaVis
,
427 __DRIcontext
*driContextPriv
,
428 void *sharedContextPrivate
)
432 GLcontext
*ctx
, *shareCtx
;
434 __DRIscreen
*sPriv
= driContextPriv
->driScreenPriv
;
435 mgaScreenPrivate
*mgaScreen
= (mgaScreenPrivate
*)sPriv
->private;
436 drm_mga_sarea_t
*saPriv
= (drm_mga_sarea_t
*)(((char*)sPriv
->pSAREA
)+
437 mgaScreen
->sarea_priv_offset
);
438 struct dd_function_table functions
;
440 if (MGA_DEBUG
&DEBUG_VERBOSE_DRI
)
441 fprintf(stderr
, "mgaCreateContext\n");
443 /* allocate mga context */
444 mmesa
= (mgaContextPtr
) CALLOC(sizeof(mgaContext
));
449 /* Init default driver functions then plug in our Radeon-specific functions
450 * (the texture functions are especially important)
452 _mesa_init_driver_functions( &functions
);
453 mgaInitDriverFuncs( &functions
);
454 mgaInitTextureFuncs( &functions
);
455 mgaInitIoctlFuncs( &functions
);
457 /* Allocate the Mesa context */
458 if (sharedContextPrivate
)
459 shareCtx
= ((mgaContextPtr
) sharedContextPrivate
)->glCtx
;
462 mmesa
->glCtx
= _mesa_create_context(mesaVis
, shareCtx
,
463 &functions
, (void *) mmesa
);
468 driContextPriv
->driverPrivate
= mmesa
;
471 mmesa
->hHWContext
= driContextPriv
->hHWContext
;
472 mmesa
->driFd
= sPriv
->fd
;
473 mmesa
->driHwLock
= &sPriv
->pSAREA
->lock
;
475 mmesa
->mgaScreen
= mgaScreen
;
476 mmesa
->driScreen
= sPriv
;
477 mmesa
->sarea
= (void *)saPriv
;
479 /* Parse configuration files */
480 driParseConfigFiles (&mmesa
->optionCache
, &mgaScreen
->optionCache
,
481 sPriv
->myNum
, "mga");
483 (void) memset( mmesa
->texture_heaps
, 0, sizeof( mmesa
->texture_heaps
) );
484 make_empty_list( & mmesa
->swapped
);
486 mmesa
->nr_heaps
= mgaScreen
->texVirtual
[MGA_AGP_HEAP
] ? 2 : 1;
487 for ( i
= 0 ; i
< mmesa
->nr_heaps
; i
++ ) {
488 mmesa
->texture_heaps
[i
] = driCreateTextureHeap( i
, mmesa
,
489 mgaScreen
->textureSize
[i
],
492 (drmTextureRegionPtr
)mmesa
->sarea
->texList
[i
],
493 &mmesa
->sarea
->texAge
[i
],
495 sizeof( mgaTextureObject_t
),
496 (destroy_texture_object_t
*) mgaDestroyTexObj
);
499 /* Set the maximum texture size small enough that we can guarentee
500 * that both texture units can bind a maximal texture and have them
501 * on the card at once.
504 if ( mgaScreen
->chipset
== MGA_CARD_TYPE_G200
) {
505 ctx
->Const
.MaxTextureUnits
= 1;
506 ctx
->Const
.MaxTextureImageUnits
= 1;
507 ctx
->Const
.MaxTextureCoordUnits
= 1;
508 maxlevels
= G200_TEX_MAXLEVELS
;
512 ctx
->Const
.MaxTextureUnits
= 2;
513 ctx
->Const
.MaxTextureImageUnits
= 2;
514 ctx
->Const
.MaxTextureCoordUnits
= 2;
515 maxlevels
= G400_TEX_MAXLEVELS
;
518 driCalculateMaxTextureLevels( mmesa
->texture_heaps
,
522 11, /* max 2D texture size is 2048x2048 */
523 0, /* 3D textures unsupported. */
524 0, /* cube textures unsupported. */
525 11, /* max texture rect size is 2048x2048 */
530 ctx
->Const
.MinLineWidth
= 1.0;
531 ctx
->Const
.MinLineWidthAA
= 1.0;
532 ctx
->Const
.MaxLineWidth
= 10.0;
533 ctx
->Const
.MaxLineWidthAA
= 10.0;
534 ctx
->Const
.LineWidthGranularity
= 1.0;
536 ctx
->Const
.MaxDrawBuffers
= 1;
538 mmesa
->texture_depth
= driQueryOptioni (&mmesa
->optionCache
,
540 if (mmesa
->texture_depth
== DRI_CONF_TEXTURE_DEPTH_FB
)
541 mmesa
->texture_depth
= ( mesaVis
->rgbBits
>= 24 ) ?
542 DRI_CONF_TEXTURE_DEPTH_32
: DRI_CONF_TEXTURE_DEPTH_16
;
543 mmesa
->hw_stencil
= mesaVis
->stencilBits
&& mesaVis
->depthBits
== 24;
545 switch (mesaVis
->depthBits
) {
547 mmesa
->depth_scale
= 1.0/(GLdouble
)0xffff;
548 mmesa
->depth_clear_mask
= ~0;
549 mmesa
->ClearDepth
= 0xffff;
552 mmesa
->depth_scale
= 1.0/(GLdouble
)0xffffff;
553 if (mmesa
->hw_stencil
) {
554 mmesa
->depth_clear_mask
= 0xffffff00;
555 mmesa
->stencil_clear_mask
= 0x000000ff;
557 mmesa
->depth_clear_mask
= ~0;
558 mmesa
->ClearDepth
= 0xffffff00;
561 mmesa
->depth_scale
= 1.0/(GLdouble
)0xffffffff;
562 mmesa
->depth_clear_mask
= ~0;
563 mmesa
->ClearDepth
= 0xffffffff;
567 mmesa
->haveHwStipple
= GL_FALSE
;
568 mmesa
->RenderIndex
= -1; /* impossible value */
570 mmesa
->vertex_format
= 0;
571 mmesa
->CurrentTexObj
[0] = 0;
572 mmesa
->CurrentTexObj
[1] = 0;
573 mmesa
->tmu_source
[0] = 0;
574 mmesa
->tmu_source
[1] = 1;
576 mmesa
->texAge
[0] = 0;
577 mmesa
->texAge
[1] = 0;
579 /* Initialize the software rasterizer and helper modules.
581 _swrast_CreateContext( ctx
);
582 _vbo_CreateContext( ctx
);
583 _tnl_CreateContext( ctx
);
585 _swsetup_CreateContext( ctx
);
587 /* Install the customized pipeline:
589 _tnl_destroy_pipeline( ctx
);
590 _tnl_install_pipeline( ctx
, mga_pipeline
);
592 /* Configure swrast and T&L to match hardware characteristics:
594 _swrast_allow_pixel_fog( ctx
, GL_FALSE
);
595 _swrast_allow_vertex_fog( ctx
, GL_TRUE
);
596 _tnl_allow_pixel_fog( ctx
, GL_FALSE
);
597 _tnl_allow_vertex_fog( ctx
, GL_TRUE
);
599 mmesa
->primary_offset
= mmesa
->mgaScreen
->primary
.handle
;
601 ctx
->DriverCtx
= (void *) mmesa
;
604 driInitExtensions( ctx
, card_extensions
, GL_FALSE
);
606 if (MGA_IS_G400(MGA_CONTEXT(ctx
))) {
607 driInitExtensions( ctx
, g400_extensions
, GL_FALSE
);
610 if ( driQueryOptionb( &mmesa
->optionCache
, "arb_vertex_program" ) ) {
611 driInitExtensions(ctx
, ARB_vp_extensions
, GL_FALSE
);
614 if ( driQueryOptionb( &mmesa
->optionCache
, "nv_vertex_program" ) ) {
615 driInitExtensions( ctx
, NV_vp_extensions
, GL_FALSE
);
619 /* XXX these should really go right after _mesa_init_driver_functions() */
620 mgaDDInitStateFuncs( ctx
);
621 mgaDDInitSpanFuncs( ctx
);
622 mgaDDInitPixelFuncs( ctx
);
623 mgaDDInitTriFuncs( ctx
);
626 mgaInitState( mmesa
);
628 driContextPriv
->driverPrivate
= (void *) mmesa
;
631 MGA_DEBUG
= driParseDebugString( getenv( "MGA_DEBUG" ),
635 (*sPriv
->systemTime
->getUST
)( & mmesa
->swap_ust
);
637 if (driQueryOptionb(&mmesa
->optionCache
, "no_rast")) {
638 fprintf(stderr
, "disabling 3D acceleration\n");
639 FALLBACK(mmesa
->glCtx
, MGA_FALLBACK_DISABLE
, 1);
646 mgaDestroyContext(__DRIcontext
*driContextPriv
)
648 mgaContextPtr mmesa
= (mgaContextPtr
) driContextPriv
->driverPrivate
;
650 if (MGA_DEBUG
&DEBUG_VERBOSE_DRI
)
651 fprintf( stderr
, "[%s:%d] mgaDestroyContext start\n",
652 __FILE__
, __LINE__
);
654 assert(mmesa
); /* should never be null */
656 GLboolean release_texture_heaps
;
659 release_texture_heaps
= (mmesa
->glCtx
->Shared
->RefCount
== 1);
660 _swsetup_DestroyContext( mmesa
->glCtx
);
661 _tnl_DestroyContext( mmesa
->glCtx
);
662 _vbo_DestroyContext( mmesa
->glCtx
);
663 _swrast_DestroyContext( mmesa
->glCtx
);
665 mgaFreeVB( mmesa
->glCtx
);
667 /* free the Mesa context */
668 mmesa
->glCtx
->DriverCtx
= NULL
;
669 _mesa_destroy_context(mmesa
->glCtx
);
671 if ( release_texture_heaps
) {
672 /* This share group is about to go away, free our private
673 * texture object data.
677 for ( i
= 0 ; i
< mmesa
->nr_heaps
; i
++ ) {
678 driDestroyTextureHeap( mmesa
->texture_heaps
[ i
] );
679 mmesa
->texture_heaps
[ i
] = NULL
;
682 assert( is_empty_list( & mmesa
->swapped
) );
685 /* free the option cache */
686 driDestroyOptionCache (&mmesa
->optionCache
);
691 if (MGA_DEBUG
&DEBUG_VERBOSE_DRI
)
692 fprintf( stderr
, "[%s:%d] mgaDestroyContext done\n",
693 __FILE__
, __LINE__
);
698 mgaCreateBuffer( __DRIscreen
*driScrnPriv
,
699 __DRIdrawable
*driDrawPriv
,
700 const __GLcontextModes
*mesaVis
,
703 mgaScreenPrivate
*screen
= (mgaScreenPrivate
*) driScrnPriv
->private;
706 return GL_FALSE
; /* not implemented */
709 GLboolean swStencil
= (mesaVis
->stencilBits
> 0 &&
710 mesaVis
->depthBits
!= 24);
713 driDrawPriv
->driverPrivate
= (void *)
714 _mesa_create_framebuffer(mesaVis
,
715 GL_FALSE
, /* software depth buffer? */
717 mesaVis
->accumRedBits
> 0,
718 mesaVis
->alphaBits
> 0 );
720 struct gl_framebuffer
*fb
= _mesa_create_framebuffer(mesaVis
);
723 driRenderbuffer
*frontRb
724 = driNewRenderbuffer(MESA_FORMAT_ARGB8888
,
727 screen
->frontOffset
, screen
->frontPitch
,
729 mgaSetSpanFunctions(frontRb
, mesaVis
);
730 _mesa_add_renderbuffer(fb
, BUFFER_FRONT_LEFT
, &frontRb
->Base
);
733 if (mesaVis
->doubleBufferMode
) {
734 driRenderbuffer
*backRb
735 = driNewRenderbuffer(MESA_FORMAT_ARGB8888
,
738 screen
->backOffset
, screen
->backPitch
,
740 mgaSetSpanFunctions(backRb
, mesaVis
);
741 _mesa_add_renderbuffer(fb
, BUFFER_BACK_LEFT
, &backRb
->Base
);
744 if (mesaVis
->depthBits
== 16) {
745 driRenderbuffer
*depthRb
746 = driNewRenderbuffer(MESA_FORMAT_Z16
,
749 screen
->depthOffset
, screen
->depthPitch
,
751 mgaSetSpanFunctions(depthRb
, mesaVis
);
752 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &depthRb
->Base
);
754 else if (mesaVis
->depthBits
== 24) {
755 /* XXX is this right? */
756 if (mesaVis
->stencilBits
) {
757 driRenderbuffer
*depthRb
758 = driNewRenderbuffer(MESA_FORMAT_Z24_S8
,
761 screen
->depthOffset
, screen
->depthPitch
,
763 mgaSetSpanFunctions(depthRb
, mesaVis
);
764 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &depthRb
->Base
);
767 driRenderbuffer
*depthRb
768 = driNewRenderbuffer(MESA_FORMAT_Z32
,
771 screen
->depthOffset
, screen
->depthPitch
,
773 mgaSetSpanFunctions(depthRb
, mesaVis
);
774 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &depthRb
->Base
);
777 else if (mesaVis
->depthBits
== 32) {
778 driRenderbuffer
*depthRb
779 = driNewRenderbuffer(MESA_FORMAT_Z32
,
782 screen
->depthOffset
, screen
->depthPitch
,
784 mgaSetSpanFunctions(depthRb
, mesaVis
);
785 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &depthRb
->Base
);
788 if (mesaVis
->stencilBits
> 0 && !swStencil
) {
789 driRenderbuffer
*stencilRb
790 = driNewRenderbuffer(MESA_FORMAT_S8
,
793 screen
->depthOffset
, screen
->depthPitch
,
795 mgaSetSpanFunctions(stencilRb
, mesaVis
);
796 _mesa_add_renderbuffer(fb
, BUFFER_STENCIL
, &stencilRb
->Base
);
799 _mesa_add_soft_renderbuffers(fb
,
800 GL_FALSE
, /* color */
801 GL_FALSE
, /* depth */
803 mesaVis
->accumRedBits
> 0,
804 GL_FALSE
, /* alpha */
806 driDrawPriv
->driverPrivate
= (void *) fb
;
809 return (driDrawPriv
->driverPrivate
!= NULL
);
815 mgaDestroyBuffer(__DRIdrawable
*driDrawPriv
)
817 _mesa_reference_framebuffer((GLframebuffer
**)(&(driDrawPriv
->driverPrivate
)), NULL
);
821 mgaSwapBuffers(__DRIdrawable
*dPriv
)
823 if (dPriv
->driContextPriv
&& dPriv
->driContextPriv
->driverPrivate
) {
826 mmesa
= (mgaContextPtr
) dPriv
->driContextPriv
->driverPrivate
;
829 if (ctx
->Visual
.doubleBufferMode
) {
830 _mesa_notifySwapBuffers( ctx
);
831 mgaCopyBuffer( dPriv
);
834 /* XXX this shouldn't be an error but we can't handle it for now */
835 _mesa_problem(NULL
, "%s: drawable has no context!\n", __FUNCTION__
);
840 mgaUnbindContext(__DRIcontext
*driContextPriv
)
842 mgaContextPtr mmesa
= (mgaContextPtr
) driContextPriv
->driverPrivate
;
849 /* This looks buggy to me - the 'b' variable isn't used anywhere...
850 * Hmm - It seems that the drawable is already hooked in to
853 * But why are we doing context initialization here???
856 mgaMakeCurrent(__DRIcontext
*driContextPriv
,
857 __DRIdrawable
*driDrawPriv
,
858 __DRIdrawable
*driReadPriv
)
860 if (driContextPriv
) {
861 mgaContextPtr mmesa
= (mgaContextPtr
) driContextPriv
->driverPrivate
;
863 if (mmesa
->driDrawable
!= driDrawPriv
) {
864 if (driDrawPriv
->swap_interval
== (unsigned)-1) {
865 driDrawPriv
->vblFlags
= (mmesa
->mgaScreen
->irq
== 0)
867 : driGetDefaultVBlankFlags(&mmesa
->optionCache
);
869 driDrawableInitVBlank( driDrawPriv
);
872 mmesa
->driDrawable
= driDrawPriv
;
874 mmesa
->dirty_cliprects
= (MGA_FRONT
|MGA_BACK
);
877 mmesa
->driReadable
= driReadPriv
;
879 _mesa_make_current(mmesa
->glCtx
,
880 (GLframebuffer
*) driDrawPriv
->driverPrivate
,
881 (GLframebuffer
*) driReadPriv
->driverPrivate
);
884 _mesa_make_current(NULL
, NULL
, NULL
);
891 void mgaGetLock( mgaContextPtr mmesa
, GLuint flags
)
893 __DRIdrawable
*dPriv
= mmesa
->driDrawable
;
894 drm_mga_sarea_t
*sarea
= mmesa
->sarea
;
895 int me
= mmesa
->hHWContext
;
898 drmGetLock(mmesa
->driFd
, mmesa
->hHWContext
, flags
);
900 DRI_VALIDATE_DRAWABLE_INFO( mmesa
->driScreen
, dPriv
);
901 if (*(dPriv
->pStamp
) != mmesa
->lastStamp
) {
902 mmesa
->lastStamp
= *(dPriv
->pStamp
);
903 mmesa
->SetupNewInputs
|= VERT_BIT_POS
;
904 mmesa
->dirty_cliprects
= (MGA_FRONT
|MGA_BACK
);
905 mgaUpdateRects( mmesa
, (MGA_FRONT
|MGA_BACK
) );
906 driUpdateFramebufferSize(mmesa
->glCtx
, dPriv
);
909 mmesa
->dirty
|= MGA_UPLOAD_CONTEXT
| MGA_UPLOAD_CLIPRECTS
;
911 mmesa
->sarea
->dirty
|= MGA_UPLOAD_CONTEXT
;
913 if (sarea
->ctxOwner
!= me
) {
914 mmesa
->dirty
|= (MGA_UPLOAD_CONTEXT
| MGA_UPLOAD_TEX0
|
915 MGA_UPLOAD_TEX1
| MGA_UPLOAD_PIPE
);
919 for ( i
= 0 ; i
< mmesa
->nr_heaps
; i
++ ) {
920 DRI_AGE_TEXTURES( mmesa
->texture_heaps
[ i
] );
926 * This is the driver specific part of the createNewScreen entry point.
928 * \todo maybe fold this into intelInitDriver
930 * \return the __GLcontextModes supported by this driver
932 static const __DRIconfig
**mgaInitScreen(__DRIscreen
*psp
)
934 static const __DRIversion ddx_expected
= { 1, 2, 0 };
935 static const __DRIversion dri_expected
= { 4, 0, 0 };
936 static const __DRIversion drm_expected
= { 3, 0, 0 };
937 MGADRIPtr dri_priv
= (MGADRIPtr
) psp
->pDevPriv
;
939 if ( ! driCheckDriDdxDrmVersions2( "MGA",
940 &psp
->dri_version
, & dri_expected
,
941 &psp
->ddx_version
, & ddx_expected
,
942 &psp
->drm_version
, & drm_expected
) )
946 if (!mgaInitDriver(psp
))
949 return mgaFillInModes( psp
,
951 (dri_priv
->cpp
== 2) ? 16 : 24,
952 (dri_priv
->cpp
== 2) ? 0 : 8,
953 (dri_priv
->backOffset
!= dri_priv
->depthOffset
) );
958 * Get information about previous buffer swaps.
961 getSwapInfo( __DRIdrawable
*dPriv
, __DRIswapInfo
* sInfo
)
965 if ( (dPriv
== NULL
) || (dPriv
->driContextPriv
== NULL
)
966 || (dPriv
->driContextPriv
->driverPrivate
== NULL
)
967 || (sInfo
== NULL
) ) {
971 mmesa
= (mgaContextPtr
) dPriv
->driContextPriv
->driverPrivate
;
972 sInfo
->swap_count
= mmesa
->swap_count
;
973 sInfo
->swap_ust
= mmesa
->swap_ust
;
974 sInfo
->swap_missed_count
= mmesa
->swap_missed_count
;
976 sInfo
->swap_missed_usage
= (sInfo
->swap_missed_count
!= 0)
977 ? driCalculateSwapUsage( dPriv
, 0, mmesa
->swap_missed_ust
)
983 const struct __DriverAPIRec driDriverAPI
= {
984 .InitScreen
= mgaInitScreen
,
985 .DestroyScreen
= mgaDestroyScreen
,
986 .CreateContext
= mgaCreateContext
,
987 .DestroyContext
= mgaDestroyContext
,
988 .CreateBuffer
= mgaCreateBuffer
,
989 .DestroyBuffer
= mgaDestroyBuffer
,
990 .SwapBuffers
= mgaSwapBuffers
,
991 .MakeCurrent
= mgaMakeCurrent
,
992 .UnbindContext
= mgaUnbindContext
,
993 .GetSwapInfo
= getSwapInfo
,
994 .GetDrawableMSC
= driDrawableGetMSC32
,
995 .WaitForMSC
= driWaitForMSC32
,
997 .SwapBuffersMSC
= NULL
1000 /* This is the table of extensions that the loader will dlsym() for. */
1001 PUBLIC
const __DRIextension
*__driDriverExtensions
[] = {
1002 &driCoreExtension
.base
,
1003 &driLegacyExtension
.base
,