/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mga_xmesa.c,v 1.19 2003/03/26 20:43:49 tsi Exp $ */ /* * Copyright 2000-2001 VA Linux Systems, Inc. * 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 * VA LINUX SYSTEMS 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. * * Authors: * Keith Whitwell */ #include #include "drm.h" #include "mga_drm.h" #include "mga_xmesa.h" #include "context.h" #include "matrix.h" #include "simple_list.h" #include "imports.h" #include "swrast/swrast.h" #include "swrast_setup/swrast_setup.h" #include "tnl/tnl.h" #include "array_cache/acache.h" #include "tnl/t_pipeline.h" #include "drivers/common/driverfuncs.h" #include "mgadd.h" #include "mgastate.h" #include "mgatex.h" #include "mgaspan.h" #include "mgaioctl.h" #include "mgatris.h" #include "mgavb.h" #include "mgapixel.h" #include "mga_xmesa.h" #include "mga_dri.h" #include "utils.h" #include "vblank.h" #include "extensions.h" #include "GL/internal/dri_interface.h" /* MGA configuration */ #include "xmlpool.h" const char __driConfigOptions[] = DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0) DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB) DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER) DRI_CONF_SECTION_END DRI_CONF_SECTION_SOFTWARE DRI_CONF_ARB_VERTEX_PROGRAM(true) DRI_CONF_NV_VERTEX_PROGRAM(true) DRI_CONF_SECTION_END DRI_CONF_END; static const GLuint __driNConfigOptions = 5; #ifdef USE_NEW_INTERFACE static PFNGLXCREATECONTEXTMODES create_context_modes = NULL; #endif /* USE_NEW_INTERFACE */ #ifndef MGA_DEBUG int MGA_DEBUG = 0; #endif static int getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo ); #ifdef USE_NEW_INTERFACE static __GLcontextModes * mgaFillInModes( unsigned pixel_bits, unsigned depth_bits, unsigned stencil_bits, GLboolean have_back_buffer ) { __GLcontextModes * modes; __GLcontextModes * m; unsigned num_modes; unsigned depth_buffer_factor; unsigned back_buffer_factor; GLenum fb_format; GLenum fb_type; /* GLX_SWAP_COPY_OML is only supported because the MGA driver doesn't * support pageflipping at all. */ static const GLenum back_buffer_modes[] = { GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML }; uint8_t depth_bits_array[3]; uint8_t stencil_bits_array[3]; depth_bits_array[0] = 0; depth_bits_array[1] = depth_bits; depth_bits_array[2] = 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] = 0; stencil_bits_array[2] = (stencil_bits == 0) ? 8 : stencil_bits; depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 3 : 1; back_buffer_factor = (have_back_buffer) ? 2 : 1; num_modes = depth_buffer_factor * back_buffer_factor * 4; if ( pixel_bits == 16 ) { fb_format = GL_RGB; fb_type = GL_UNSIGNED_SHORT_5_6_5; } else { fb_format = GL_BGR; fb_type = GL_UNSIGNED_INT_8_8_8_8_REV; } modes = (*create_context_modes)( num_modes, sizeof( __GLcontextModes ) ); m = modes; if ( ! driFillInModes( & m, fb_format, fb_type, depth_bits_array, stencil_bits_array, depth_buffer_factor, back_buffer_modes, back_buffer_factor, GLX_TRUE_COLOR ) ) { fprintf( stderr, "[%s:%u] Error creating FBConfig!\n", __func__, __LINE__ ); return NULL; } if ( ! driFillInModes( & m, fb_format, fb_type, depth_bits_array, stencil_bits_array, depth_buffer_factor, back_buffer_modes, back_buffer_factor, GLX_DIRECT_COLOR ) ) { fprintf( stderr, "[%s:%u] Error creating FBConfig!\n", __func__, __LINE__ ); return NULL; } /* Mark the visual as slow if there are "fake" stencil bits. */ for ( m = modes ; m != NULL ; m = m->next ) { if ( (m->stencilBits != 0) && (m->stencilBits != stencil_bits) ) { m->visualRating = GLX_SLOW_CONFIG; } } return modes; } #endif /* USE_NEW_INTERFACE */ static GLboolean mgaInitDriver(__DRIscreenPrivate *sPriv) { mgaScreenPrivate *mgaScreen; MGADRIPtr serverInfo = (MGADRIPtr)sPriv->pDevPriv; /* Allocate the private area */ mgaScreen = (mgaScreenPrivate *)MALLOC(sizeof(mgaScreenPrivate)); if (!mgaScreen) { __driUtilMessage("Couldn't malloc screen struct"); return GL_FALSE; } mgaScreen->sPriv = sPriv; sPriv->private = (void *)mgaScreen; if (sPriv->drmMinor >= 1) { int ret; drm_mga_getparam_t gp; gp.param = MGA_PARAM_IRQ_NR; gp.value = &mgaScreen->irq; mgaScreen->irq = 0; ret = drmCommandWriteRead( sPriv->fd, DRM_MGA_GETPARAM, &gp, sizeof(gp)); if (ret) { fprintf(stderr, "drmMgaGetParam (MGA_PARAM_IRQ_NR): %d\n", ret); FREE(mgaScreen); sPriv->private = NULL; return GL_FALSE; } } mgaScreen->linecomp_sane = (sPriv->ddxMajor > 1) || (sPriv->ddxMinor > 1) || ((sPriv->ddxMinor == 1) && (sPriv->ddxPatch > 0)); if ( driCompareGLXAPIVersion( 20030813 ) >= 0 ) { PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension = (PFNGLXSCRENABLEEXTENSIONPROC) glXGetProcAddress( (const GLubyte *) "__glXScrEnableExtension" ); void * const psc = sPriv->psc->screenConfigs; if ( glx_enable_extension != NULL ) { if ( mgaScreen->linecomp_sane ) { (*glx_enable_extension)( psc, "GLX_SGI_swap_control" ); (*glx_enable_extension)( psc, "GLX_SGI_video_sync" ); (*glx_enable_extension)( psc, "GLX_MESA_swap_control" ); } (*glx_enable_extension)( psc, "GLX_SGI_make_current_read" ); (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" ); if ( driCompareGLXAPIVersion( 20030915 ) >= 0 ) { (*glx_enable_extension)( psc, "GLX_SGIX_fbconfig" ); (*glx_enable_extension)( psc, "GLX_OML_swap_method" ); } } } if (serverInfo->chipset != MGA_CARD_TYPE_G200 && serverInfo->chipset != MGA_CARD_TYPE_G400) { FREE(mgaScreen); sPriv->private = NULL; __driUtilMessage("Unrecognized chipset"); return GL_FALSE; } mgaScreen->chipset = serverInfo->chipset; mgaScreen->width = serverInfo->width; mgaScreen->height = serverInfo->height; mgaScreen->mem = serverInfo->mem; mgaScreen->cpp = serverInfo->cpp; mgaScreen->agpMode = serverInfo->agpMode; mgaScreen->frontPitch = serverInfo->frontPitch; mgaScreen->frontOffset = serverInfo->frontOffset; mgaScreen->backOffset = serverInfo->backOffset; mgaScreen->backPitch = serverInfo->backPitch; mgaScreen->depthOffset = serverInfo->depthOffset; mgaScreen->depthPitch = serverInfo->depthPitch; mgaScreen->mmio.handle = serverInfo->registers.handle; mgaScreen->mmio.size = serverInfo->registers.size; if ( drmMap( sPriv->fd, mgaScreen->mmio.handle, mgaScreen->mmio.size, &mgaScreen->mmio.map ) < 0 ) { FREE( mgaScreen ); sPriv->private = NULL; __driUtilMessage( "Couldn't map MMIO registers" ); return GL_FALSE; } mgaScreen->primary.handle = serverInfo->primary.handle; mgaScreen->primary.size = serverInfo->primary.size; mgaScreen->buffers.handle = serverInfo->buffers.handle; mgaScreen->buffers.size = serverInfo->buffers.size; #if 0 mgaScreen->agp.handle = serverInfo->agp; mgaScreen->agp.size = serverInfo->agpSize; if (drmMap(sPriv->fd, mgaScreen->agp.handle, mgaScreen->agp.size, (drmAddress *)&mgaScreen->agp.map) != 0) { Xfree(mgaScreen); sPriv->private = NULL; __driUtilMessage("Couldn't map agp region"); return GL_FALSE; } #endif mgaScreen->textureOffset[MGA_CARD_HEAP] = serverInfo->textureOffset; mgaScreen->textureOffset[MGA_AGP_HEAP] = (serverInfo->agpTextureOffset | PDEA_pagpxfer_enable | 1); mgaScreen->textureSize[MGA_CARD_HEAP] = serverInfo->textureSize; mgaScreen->textureSize[MGA_AGP_HEAP] = serverInfo->agpTextureSize; mgaScreen->logTextureGranularity[MGA_CARD_HEAP] = serverInfo->logTextureGranularity; mgaScreen->logTextureGranularity[MGA_AGP_HEAP] = serverInfo->logAgpTextureGranularity; mgaScreen->texVirtual[MGA_CARD_HEAP] = (char *)(mgaScreen->sPriv->pFB + serverInfo->textureOffset); if (drmMap(sPriv->fd, serverInfo->agpTextureOffset, serverInfo->agpTextureSize, (drmAddress *)&mgaScreen->texVirtual[MGA_AGP_HEAP]) != 0) { FREE(mgaScreen); sPriv->private = NULL; __driUtilMessage("Couldn't map agptexture region"); return GL_FALSE; } #if 0 mgaScreen->texVirtual[MGA_AGP_HEAP] = (mgaScreen->agp.map + serverInfo->agpTextureOffset); #endif mgaScreen->mAccess = serverInfo->mAccess; /* For calculating setupdma addresses. */ mgaScreen->dmaOffset = serverInfo->buffers.handle; mgaScreen->bufs = drmMapBufs(sPriv->fd); if (!mgaScreen->bufs) { /*drmUnmap(mgaScreen->agp_tex.map, mgaScreen->agp_tex.size);*/ FREE(mgaScreen); sPriv->private = NULL; __driUtilMessage("Couldn't map dma buffers"); return GL_FALSE; } mgaScreen->sarea_priv_offset = serverInfo->sarea_priv_offset; /* parse information in __driConfigOptions */ driParseOptionInfo (&mgaScreen->optionCache, __driConfigOptions, __driNConfigOptions); return GL_TRUE; } static void mgaDestroyScreen(__DRIscreenPrivate *sPriv) { mgaScreenPrivate *mgaScreen = (mgaScreenPrivate *) sPriv->private; if (MGA_DEBUG&DEBUG_VERBOSE_DRI) fprintf(stderr, "mgaDestroyScreen\n"); drmUnmapBufs(mgaScreen->bufs); /*drmUnmap(mgaScreen->agp_tex.map, mgaScreen->agp_tex.size);*/ /* free all option information */ driDestroyOptionInfo (&mgaScreen->optionCache); FREE(mgaScreen); sPriv->private = NULL; } extern const struct tnl_pipeline_stage _mga_render_stage; static const struct tnl_pipeline_stage *mga_pipeline[] = { &_tnl_vertex_transform_stage, &_tnl_normal_transform_stage, &_tnl_lighting_stage, &_tnl_fog_coordinate_stage, &_tnl_texgen_stage, &_tnl_texture_transform_stage, &_tnl_vertex_program_stage, /* REMOVE: point attenuation stage */ #if 0 &_mga_render_stage, /* ADD: unclipped rastersetup-to-dma */ /* Need new ioctl for wacceptseq */ #endif &_tnl_render_stage, 0, }; static const char * const g400_extensions[] = { "GL_ARB_multitexture", "GL_ARB_texture_env_add", "GL_ARB_texture_env_combine", "GL_ARB_texture_env_crossbar", "GL_EXT_texture_env_combine", "GL_EXT_texture_edge_clamp", "GL_ATI_texture_env_combine3", #if defined (MESA_packed_depth_stencil) "GL_MESA_packed_depth_stencil", #endif NULL }; static const char * const card_extensions[] = { "GL_ARB_multisample", "GL_ARB_texture_compression", "GL_ARB_texture_rectangle", "GL_EXT_blend_logic_op", "GL_EXT_fog_coord", "GL_EXT_multi_draw_arrays", /* paletted_textures currently doesn't work, but we could fix them later */ #if 0 "GL_EXT_shared_texture_palette", "GL_EXT_paletted_texture", #endif "GL_EXT_secondary_color", "GL_EXT_stencil_wrap", "GL_MESA_ycbcr_texture", "GL_SGIS_generate_mipmap", NULL }; static const struct dri_debug_control debug_control[] = { { "fall", DEBUG_VERBOSE_FALLBACK }, { "tex", DEBUG_VERBOSE_TEXTURE }, { "ioctl", DEBUG_VERBOSE_IOCTL }, { "verb", DEBUG_VERBOSE_MSG }, { "dri", DEBUG_VERBOSE_DRI }, { NULL, 0 } }; static int get_ust_nop( int64_t * ust ) { *ust = 1; return 0; } static GLboolean mgaCreateContext( const __GLcontextModes *mesaVis, __DRIcontextPrivate *driContextPriv, void *sharedContextPrivate ) { int i; unsigned maxlevels; GLcontext *ctx, *shareCtx; mgaContextPtr mmesa; __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv; mgaScreenPrivate *mgaScreen = (mgaScreenPrivate *)sPriv->private; drm_mga_sarea_t *saPriv = (drm_mga_sarea_t *)(((char*)sPriv->pSAREA)+ mgaScreen->sarea_priv_offset); struct dd_function_table functions; if (MGA_DEBUG&DEBUG_VERBOSE_DRI) fprintf(stderr, "mgaCreateContext\n"); /* allocate mga context */ mmesa = (mgaContextPtr) CALLOC(sizeof(mgaContext)); if (!mmesa) { 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 ); mgaInitDriverFuncs( &functions ); mgaInitTextureFuncs( &functions ); mgaInitIoctlFuncs( &functions ); /* Allocate the Mesa context */ if (sharedContextPrivate) shareCtx = ((mgaContextPtr) sharedContextPrivate)->glCtx; else shareCtx = NULL; mmesa->glCtx = _mesa_create_context(mesaVis, shareCtx, &functions, (void *) mmesa); if (!mmesa->glCtx) { FREE(mmesa); return GL_FALSE; } driContextPriv->driverPrivate = mmesa; /* Init mga state */ mmesa->hHWContext = driContextPriv->hHWContext; mmesa->driFd = sPriv->fd; mmesa->driHwLock = &sPriv->pSAREA->lock; mmesa->mgaScreen = mgaScreen; mmesa->driScreen = sPriv; mmesa->sarea = (void *)saPriv; /* Parse configuration files */ driParseConfigFiles (&mmesa->optionCache, &mgaScreen->optionCache, sPriv->myNum, "mga"); (void) memset( mmesa->texture_heaps, 0, sizeof( mmesa->texture_heaps ) ); make_empty_list( & mmesa->swapped ); mmesa->nr_heaps = mgaScreen->texVirtual[MGA_AGP_HEAP] ? 2 : 1; for ( i = 0 ; i < mmesa->nr_heaps ; i++ ) { mmesa->texture_heaps[i] = driCreateTextureHeap( i, mmesa, mgaScreen->textureSize[i], 6, MGA_NR_TEX_REGIONS, (drmTextureRegionPtr)mmesa->sarea->texList[i], &mmesa->sarea->texAge[i], &mmesa->swapped, sizeof( mgaTextureObject_t ), (destroy_texture_object_t *) mgaDestroyTexObj ); } /* Set the maximum texture size small enough that we can guarentee * that both texture units can bind a maximal texture and have them * on the card at once. */ ctx = mmesa->glCtx; if ( mgaScreen->chipset == MGA_CARD_TYPE_G200 ) { ctx->Const.MaxTextureUnits = 1; ctx->Const.MaxTextureImageUnits = 1; ctx->Const.MaxTextureCoordUnits = 1; maxlevels = G200_TEX_MAXLEVELS; } else { ctx->Const.MaxTextureUnits = 2; ctx->Const.MaxTextureImageUnits = 2; ctx->Const.MaxTextureCoordUnits = 2; maxlevels = G400_TEX_MAXLEVELS; } driCalculateMaxTextureLevels( mmesa->texture_heaps, mmesa->nr_heaps, & ctx->Const, 4, 11, /* max 2D texture size is 2048x2048 */ 0, /* 3D textures unsupported. */ 0, /* cube textures unsupported. */ 11, /* max texture rect size is 2048x2048 */ maxlevels, GL_FALSE ); ctx->Const.MinLineWidth = 1.0; ctx->Const.MinLineWidthAA = 1.0; ctx->Const.MaxLineWidth = 10.0; ctx->Const.MaxLineWidthAA = 10.0; ctx->Const.LineWidthGranularity = 1.0; mmesa->texture_depth = driQueryOptioni (&mmesa->optionCache, "texture_depth"); if (mmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB) mmesa->texture_depth = ( mesaVis->rgbBits >= 24 ) ? DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16; mmesa->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; switch (mesaVis->depthBits) { case 16: mmesa->depth_scale = 1.0/(GLdouble)0xffff; mmesa->depth_clear_mask = ~0; mmesa->ClearDepth = 0xffff; break; case 24: mmesa->depth_scale = 1.0/(GLdouble)0xffffff; if (mmesa->hw_stencil) { mmesa->depth_clear_mask = 0xffffff00; mmesa->stencil_clear_mask = 0x000000ff; } else mmesa->depth_clear_mask = ~0; mmesa->ClearDepth = 0xffffff00; break; case 32: mmesa->depth_scale = 1.0/(GLdouble)0xffffffff; mmesa->depth_clear_mask = ~0; mmesa->ClearDepth = 0xffffffff; break; }; mmesa->haveHwStipple = GL_FALSE; mmesa->RenderIndex = -1; /* impossible value */ mmesa->dirty = ~0; mmesa->vertex_format = 0; mmesa->CurrentTexObj[0] = 0; mmesa->CurrentTexObj[1] = 0; mmesa->tmu_source[0] = 0; mmesa->tmu_source[1] = 1; mmesa->texAge[0] = 0; mmesa->texAge[1] = 0; /* 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, mga_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 ); mmesa->primary_offset = mmesa->mgaScreen->primary.handle; ctx->DriverCtx = (void *) mmesa; mmesa->glCtx = ctx; driInitExtensions( ctx, card_extensions, GL_FALSE ); if (MGA_IS_G400(MGA_CONTEXT(ctx))) { driInitExtensions( ctx, g400_extensions, GL_FALSE ); } if ( driQueryOptionb( &mmesa->optionCache, "arb_vertex_program" ) ) { _mesa_enable_extension( ctx, "GL_ARB_vertex_program" ); } if ( driQueryOptionb( &mmesa->optionCache, "nv_vertex_program" ) ) { _mesa_enable_extension( ctx, "GL_NV_vertex_program" ); _mesa_enable_extension( ctx, "GL_NV_vertex_program1_1" ); } /* XXX these should really go right after _mesa_init_driver_functions() */ mgaDDInitStateFuncs( ctx ); mgaDDInitSpanFuncs( ctx ); mgaDDInitPixelFuncs( ctx ); mgaDDInitTriFuncs( ctx ); mgaInitVB( ctx ); mgaInitState( mmesa ); driContextPriv->driverPrivate = (void *) mmesa; #if DO_DEBUG MGA_DEBUG = driParseDebugString( getenv( "MGA_DEBUG" ), debug_control ); #endif mmesa->vblank_flags = ((mmesa->mgaScreen->irq == 0) || !mmesa->mgaScreen->linecomp_sane) ? VBLANK_FLAG_NO_IRQ : driGetDefaultVBlankFlags(&mmesa->optionCache); mmesa->get_ust = (PFNGLXGETUSTPROC) glXGetProcAddress( (const GLubyte *) "__glXGetUST" ); if ( mmesa->get_ust == NULL ) { mmesa->get_ust = get_ust_nop; } (*mmesa->get_ust)( & mmesa->swap_ust ); return GL_TRUE; } static void mgaDestroyContext(__DRIcontextPrivate *driContextPriv) { mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate; if (MGA_DEBUG&DEBUG_VERBOSE_DRI) fprintf( stderr, "[%s:%d] mgaDestroyContext start\n", __FILE__, __LINE__ ); assert(mmesa); /* should never be null */ if (mmesa) { GLboolean release_texture_heaps; release_texture_heaps = (mmesa->glCtx->Shared->RefCount == 1); _swsetup_DestroyContext( mmesa->glCtx ); _tnl_DestroyContext( mmesa->glCtx ); _ac_DestroyContext( mmesa->glCtx ); _swrast_DestroyContext( mmesa->glCtx ); mgaFreeVB( mmesa->glCtx ); /* free the Mesa context */ mmesa->glCtx->DriverCtx = NULL; _mesa_destroy_context(mmesa->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 < mmesa->nr_heaps ; i++ ) { driDestroyTextureHeap( mmesa->texture_heaps[ i ] ); mmesa->texture_heaps[ i ] = NULL; } assert( is_empty_list( & mmesa->swapped ) ); } /* free the option cache */ driDestroyOptionCache (&mmesa->optionCache); FREE(mmesa); } if (MGA_DEBUG&DEBUG_VERBOSE_DRI) fprintf( stderr, "[%s:%d] mgaDestroyContext done\n", __FILE__, __LINE__ ); } static GLboolean mgaCreateBuffer( __DRIscreenPrivate *driScrnPriv, __DRIdrawablePrivate *driDrawPriv, const __GLcontextModes *mesaVis, GLboolean isPixmap ) { if (isPixmap) { return GL_FALSE; /* not implemented */ } else { GLboolean swStencil = (mesaVis->stencilBits > 0 && mesaVis->depthBits != 24); driDrawPriv->driverPrivate = (void *) _mesa_create_framebuffer(mesaVis, GL_FALSE, /* software depth buffer? */ swStencil, mesaVis->accumRedBits > 0, mesaVis->alphaBits > 0 ); return (driDrawPriv->driverPrivate != NULL); } } static void mgaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv) { _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate)); } static void mgaSwapBuffers(__DRIdrawablePrivate *dPriv) { if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { mgaContextPtr mmesa; GLcontext *ctx; mmesa = (mgaContextPtr) dPriv->driContextPriv->driverPrivate; ctx = mmesa->glCtx; if (ctx->Visual.doubleBufferMode) { _mesa_notifySwapBuffers( ctx ); mgaCopyBuffer( dPriv ); } } else { /* XXX this shouldn't be an error but we can't handle it for now */ _mesa_problem(NULL, "%s: drawable has no context!\n", __FUNCTION__); } } static GLboolean mgaUnbindContext(__DRIcontextPrivate *driContextPriv) { mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate; if (mmesa) mmesa->dirty = ~0; return GL_TRUE; } /* This looks buggy to me - the 'b' variable isn't used anywhere... * Hmm - It seems that the drawable is already hooked in to * driDrawablePriv. * * But why are we doing context initialization here??? */ static GLboolean mgaMakeCurrent(__DRIcontextPrivate *driContextPriv, __DRIdrawablePrivate *driDrawPriv, __DRIdrawablePrivate *driReadPriv) { if (driContextPriv) { mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate; if (mmesa->driDrawable != driDrawPriv) { driDrawableInitVBlank( driDrawPriv, mmesa->vblank_flags ); mmesa->driDrawable = driDrawPriv; mmesa->dirty = ~0; mmesa->dirty_cliprects = (MGA_FRONT|MGA_BACK); mmesa->mesa_drawable = driDrawPriv; } mmesa->driReadable = driReadPriv; _mesa_make_current2(mmesa->glCtx, (GLframebuffer *) driDrawPriv->driverPrivate, (GLframebuffer *) driReadPriv->driverPrivate); } else { _mesa_make_current(NULL, NULL); } return GL_TRUE; } void mgaGetLock( mgaContextPtr mmesa, GLuint flags ) { __DRIdrawablePrivate *dPriv = mmesa->driDrawable; drm_mga_sarea_t *sarea = mmesa->sarea; int me = mmesa->hHWContext; int i; drmGetLock(mmesa->driFd, mmesa->hHWContext, flags); if (*(dPriv->pStamp) != mmesa->lastStamp) { mmesa->lastStamp = *(dPriv->pStamp); mmesa->SetupNewInputs |= VERT_BIT_POS; mmesa->dirty_cliprects = (MGA_FRONT|MGA_BACK); mgaUpdateRects( mmesa, (MGA_FRONT|MGA_BACK) ); } mmesa->dirty |= MGA_UPLOAD_CONTEXT | MGA_UPLOAD_CLIPRECTS; mmesa->sarea->dirty |= MGA_UPLOAD_CONTEXT; if (sarea->ctxOwner != me) { mmesa->dirty |= (MGA_UPLOAD_CONTEXT | MGA_UPLOAD_TEX0 | MGA_UPLOAD_TEX1 | MGA_UPLOAD_PIPE); sarea->ctxOwner=me; } for ( i = 0 ; i < mmesa->nr_heaps ; i++ ) { DRI_AGE_TEXTURES( mmesa->texture_heaps[ i ] ); } sarea->last_quiescent = -1; /* just kill it for now */ } static const struct __DriverAPIRec mgaAPI = { .InitDriver = mgaInitDriver, .DestroyScreen = mgaDestroyScreen, .CreateContext = mgaCreateContext, .DestroyContext = mgaDestroyContext, .CreateBuffer = mgaCreateBuffer, .DestroyBuffer = mgaDestroyBuffer, .SwapBuffers = mgaSwapBuffers, .MakeCurrent = mgaMakeCurrent, .UnbindContext = mgaUnbindContext, .GetSwapInfo = getSwapInfo, .GetMSC = driGetMSC32, .WaitForMSC = driWaitForMSC32, .WaitForSBC = NULL, .SwapBuffersMSC = NULL }; /* * This is the bootstrap function for the driver. * The __driCreateScreen name is the symbol that libGL.so fetches. * Return: pointer to a __DRIscreenPrivate. */ #if !defined(DRI_NEW_INTERFACE_ONLY) void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc, int numConfigs, __GLXvisualConfig *config) { __DRIscreenPrivate *psp; psp = __driUtilCreateScreen(dpy, scrn, psc, numConfigs, config, &mgaAPI); return (void *) psp; } #endif /* !defined(DRI_NEW_INTERFACE_ONLY) */ /** * This is the bootstrap function for the driver. libGL supplies all of the * requisite information about the system, and the driver initializes itself. * This routine also fills in the linked list pointed to by \c driver_modes * with the \c __GLcontextModes that the driver can support for windows or * pbuffers. * * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on * failure. */ #ifdef USE_NEW_INTERFACE void * __driCreateNewScreen( __DRInativeDisplay *dpy, int scrn, __DRIscreen *psc, const __GLcontextModes * modes, const __DRIversion * ddx_version, const __DRIversion * dri_version, const __DRIversion * drm_version, const __DRIframebuffer * frame_buffer, drmAddress pSAREA, int fd, int internal_api_version, __GLcontextModes ** driver_modes ) { __DRIscreenPrivate *psp; static const __DRIversion ddx_expected = { 1, 0, 0 }; static const __DRIversion dri_expected = { 4, 0, 0 }; static const __DRIversion drm_expected = { 3, 0, 0 }; if ( ! driCheckDriDdxDrmVersions2( "MGA", dri_version, & dri_expected, ddx_version, & ddx_expected, drm_version, & drm_expected ) ) { return NULL; } psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL, ddx_version, dri_version, drm_version, frame_buffer, pSAREA, fd, internal_api_version, &mgaAPI); if ( psp != NULL ) { create_context_modes = (PFNGLXCREATECONTEXTMODES) glXGetProcAddress( (const GLubyte *) "__glXCreateContextModes" ); if ( create_context_modes != NULL ) { MGADRIPtr dri_priv = (MGADRIPtr) psp->pDevPriv; *driver_modes = mgaFillInModes( dri_priv->cpp * 8, (dri_priv->cpp == 2) ? 16 : 24, (dri_priv->cpp == 2) ? 0 : 8, (dri_priv->backOffset != dri_priv->depthOffset) ); } } return (void *) psp; } #endif /* USE_NEW_INTERFACE */ /** * Get information about previous buffer swaps. */ static int getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo ) { mgaContextPtr mmesa; if ( (dPriv == NULL) || (dPriv->driContextPriv == NULL) || (dPriv->driContextPriv->driverPrivate == NULL) || (sInfo == NULL) ) { return -1; } mmesa = (mgaContextPtr) dPriv->driContextPriv->driverPrivate; sInfo->swap_count = mmesa->swap_count; sInfo->swap_ust = mmesa->swap_ust; sInfo->swap_missed_count = mmesa->swap_missed_count; sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0) ? driCalculateSwapUsage( dPriv, 0, mmesa->swap_missed_ust ) : 0.0; return 0; }