static GLboolean dri_create_buffer(__DRIscreen * sPriv, __DRIdrawable * dPriv, const struct gl_config * visual, GLboolean isPixmap) { struct dri_drawable *drawable = NULL; struct gl_framebuffer *fb; struct dri_swrast_renderbuffer *frontrb, *backrb; TRACE; (void) sPriv; (void) isPixmap; drawable = CALLOC_STRUCT(dri_drawable); if (drawable == NULL) goto drawable_fail; dPriv->driverPrivate = drawable; drawable->dPriv = dPriv; drawable->row = malloc(SWRAST_MAX_WIDTH * 4); if (drawable->row == NULL) goto drawable_fail; fb = &drawable->Base; /* basic framebuffer setup */ _mesa_initialize_window_framebuffer(fb, visual); /* add front renderbuffer */ frontrb = swrast_new_renderbuffer(visual, dPriv, GL_TRUE); _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontrb->Base.Base); /* add back renderbuffer */ if (visual->doubleBufferMode) { backrb = swrast_new_renderbuffer(visual, dPriv, GL_FALSE); _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backrb->Base.Base); } /* add software renderbuffers */ _swrast_add_soft_renderbuffers(fb, GL_FALSE, /* color */ visual->haveDepthBuffer, visual->haveStencilBuffer, visual->haveAccumBuffer, GL_FALSE, /* alpha */ GL_FALSE /* aux bufs */); return GL_TRUE; drawable_fail: if (drawable) free(drawable->row); free(drawable); return GL_FALSE; }
static GLboolean nouveau_create_buffer(__DRIscreen *dri_screen, __DRIdrawable *drawable, const struct gl_config *visual, GLboolean is_pixmap) { struct gl_renderbuffer *rb; struct gl_framebuffer *fb; GLenum color_format; if (is_pixmap) return GL_FALSE; /* not implemented */ if (visual->redBits == 5) color_format = GL_RGB5; else if (visual->alphaBits == 0) color_format = GL_RGB8; else color_format = GL_RGBA8; fb = nouveau_framebuffer_dri_new(visual); if (!fb) return GL_FALSE; /* Front buffer. */ rb = nouveau_renderbuffer_dri_new(color_format, drawable); _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, rb); /* Back buffer */ if (visual->doubleBufferMode) { rb = nouveau_renderbuffer_dri_new(color_format, drawable); _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, rb); } /* Depth/stencil buffer. */ if (visual->depthBits == 24 && visual->stencilBits == 8) { rb = nouveau_renderbuffer_dri_new(GL_DEPTH24_STENCIL8_EXT, drawable); _mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb); _mesa_add_renderbuffer(fb, BUFFER_STENCIL, rb); } else if (visual->depthBits == 24) { rb = nouveau_renderbuffer_dri_new(GL_DEPTH_COMPONENT24, drawable); _mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb); } else if (visual->depthBits == 16) { rb = nouveau_renderbuffer_dri_new(GL_DEPTH_COMPONENT16, drawable); _mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb); } /* Software renderbuffers. */ _swrast_add_soft_renderbuffers(fb, GL_FALSE, GL_FALSE, GL_FALSE, visual->accumRedBits > 0, GL_FALSE, GL_FALSE); drawable->driverPrivate = fb; return GL_TRUE; }
/** * This is called when we need to set up GL rendering to a new X window. */ static GLboolean intelCreateBuffer(__DRIscreen * driScrnPriv, __DRIdrawable * driDrawPriv, const struct gl_config * mesaVis, GLboolean isPixmap) { struct intel_renderbuffer *rb; struct intel_screen *screen = (struct intel_screen*) driScrnPriv->driverPrivate; gl_format rgbFormat; unsigned num_samples = intel_quantize_num_samples(screen, mesaVis->samples); struct gl_framebuffer *fb; if (isPixmap) return false; fb = CALLOC_STRUCT(gl_framebuffer); if (!fb) return false; _mesa_initialize_window_framebuffer(fb, mesaVis); if (mesaVis->redBits == 5) rgbFormat = MESA_FORMAT_RGB565; else if (mesaVis->sRGBCapable) rgbFormat = MESA_FORMAT_SARGB8; else if (mesaVis->alphaBits == 0) rgbFormat = MESA_FORMAT_XRGB8888; else rgbFormat = MESA_FORMAT_ARGB8888; /* setup the hardware-based renderbuffers */ rb = intel_create_renderbuffer(rgbFormat, num_samples); _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base.Base); if (mesaVis->doubleBufferMode) { rb = intel_create_renderbuffer(rgbFormat, num_samples); _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base.Base); } /* * Assert here that the gl_config has an expected depth/stencil bit * combination: one of d24/s8, d16/s0, d0/s0. (See intelInitScreen2(), * which constructs the advertised configs.) */ if (mesaVis->depthBits == 24) { assert(mesaVis->stencilBits == 8); if (screen->hw_has_separate_stencil) { rb = intel_create_private_renderbuffer(MESA_FORMAT_X8_Z24, num_samples); _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &rb->Base.Base); rb = intel_create_private_renderbuffer(MESA_FORMAT_S8, num_samples); _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &rb->Base.Base); } else { /* * Use combined depth/stencil. Note that the renderbuffer is * attached to two attachment points. */ rb = intel_create_private_renderbuffer(MESA_FORMAT_S8_Z24, num_samples); _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &rb->Base.Base); _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &rb->Base.Base); } } else if (mesaVis->depthBits == 16) { assert(mesaVis->stencilBits == 0); rb = intel_create_private_renderbuffer(MESA_FORMAT_Z16, num_samples); _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &rb->Base.Base); } else { assert(mesaVis->depthBits == 0); assert(mesaVis->stencilBits == 0); } /* now add any/all software-based renderbuffers we may need */ _swrast_add_soft_renderbuffers(fb, false, /* never sw color */ false, /* never sw depth */ false, /* never sw stencil */ mesaVis->accumRedBits > 0, false, /* never sw alpha */ false /* never sw aux */ ); driDrawPriv->driverPrivate = fb; return true; }
/** * New in Mesa 3.5 * * Create context and specify size of ancillary buffers. */ GLAPI OSMesaContext GLAPIENTRY OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits, GLint accumBits, OSMesaContext sharelist ) { OSMesaContext osmesa; struct dd_function_table functions; GLint rind, gind, bind, aind; GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0; rind = gind = bind = aind = 0; if (format==OSMESA_RGBA) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = CHAN_BITS; rind = 0; gind = 1; bind = 2; aind = 3; } else if (format==OSMESA_BGRA) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = CHAN_BITS; bind = 0; gind = 1; rind = 2; aind = 3; } else if (format==OSMESA_ARGB) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = CHAN_BITS; aind = 0; rind = 1; gind = 2; bind = 3; } else if (format==OSMESA_RGB) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = 0; rind = 0; gind = 1; bind = 2; } else if (format==OSMESA_BGR) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = 0; rind = 2; gind = 1; bind = 0; } #if CHAN_TYPE == GL_UNSIGNED_BYTE else if (format==OSMESA_RGB_565) { redBits = 5; greenBits = 6; blueBits = 5; alphaBits = 0; rind = 0; /* not used */ gind = 0; bind = 0; } #endif else { return NULL; } osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context); if (osmesa) { osmesa->gl_visual = _mesa_create_visual( GL_FALSE, /* double buffer */ GL_FALSE, /* stereo */ redBits, greenBits, blueBits, alphaBits, depthBits, stencilBits, accumBits, accumBits, accumBits, alphaBits ? accumBits : 0, 1 /* num samples */ ); if (!osmesa->gl_visual) { free(osmesa); return NULL; } /* Initialize device driver function table */ _mesa_init_driver_functions(&functions); /* override with our functions */ functions.GetString = get_string; functions.UpdateState = osmesa_update_state; functions.GetBufferSize = NULL; if (!_mesa_initialize_context(&osmesa->mesa, API_OPENGL_COMPAT, osmesa->gl_visual, sharelist ? &sharelist->mesa : (struct gl_context *) NULL, &functions)) { _mesa_destroy_visual( osmesa->gl_visual ); free(osmesa); return NULL; } _mesa_enable_sw_extensions(&(osmesa->mesa)); _mesa_enable_1_3_extensions(&(osmesa->mesa)); _mesa_enable_1_4_extensions(&(osmesa->mesa)); _mesa_enable_1_5_extensions(&(osmesa->mesa)); _mesa_enable_2_0_extensions(&(osmesa->mesa)); _mesa_enable_2_1_extensions(&(osmesa->mesa)); osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual); if (!osmesa->gl_buffer) { _mesa_destroy_visual( osmesa->gl_visual ); _mesa_free_context_data( &osmesa->mesa ); free(osmesa); return NULL; } /* Create depth/stencil/accum buffers. We'll create the color * buffer later in OSMesaMakeCurrent(). */ _swrast_add_soft_renderbuffers(osmesa->gl_buffer, GL_FALSE, /* color */ osmesa->gl_visual->haveDepthBuffer, osmesa->gl_visual->haveStencilBuffer, osmesa->gl_visual->haveAccumBuffer, GL_FALSE, /* alpha */ GL_FALSE /* aux */ ); osmesa->format = format; osmesa->userRowLength = 0; osmesa->yup = GL_TRUE; osmesa->rInd = rind; osmesa->gInd = gind; osmesa->bInd = bind; osmesa->aInd = aind; _mesa_meta_init(&osmesa->mesa); /* Initialize the software rasterizer and helper modules. */ { struct gl_context *ctx = &osmesa->mesa; SWcontext *swrast; TNLcontext *tnl; if (!_swrast_CreateContext( ctx ) || !_vbo_CreateContext( ctx ) || !_tnl_CreateContext( ctx ) || !_swsetup_CreateContext( ctx )) { _mesa_destroy_visual(osmesa->gl_visual); _mesa_free_context_data(ctx); free(osmesa); return NULL; } _swsetup_Wakeup( ctx ); /* use default TCL pipeline */ tnl = TNL_CONTEXT(ctx); tnl->Driver.RunPipeline = _tnl_run_pipeline; ctx->Driver.MapRenderbuffer = osmesa_MapRenderbuffer; ctx->Driver.UnmapRenderbuffer = osmesa_UnmapRenderbuffer; /* Extend the software rasterizer with our optimized line and triangle * drawing functions. */ swrast = SWRAST_CONTEXT( ctx ); swrast->choose_line = osmesa_choose_line; swrast->choose_triangle = osmesa_choose_triangle; } } return osmesa; }
/** * Create the Mesa framebuffer and renderbuffers for a given window/drawable. * * \todo This function (and its interface) will need to be updated to support * pbuffers. */ static GLboolean radeonCreateBuffer( __DRIscreen *driScrnPriv, __DRIdrawable *driDrawPriv, const struct gl_config *mesaVis, GLboolean isPixmap ) { radeonScreenPtr screen = (radeonScreenPtr) driScrnPriv->driverPrivate; const GLboolean swDepth = GL_FALSE; const GLboolean swAlpha = GL_FALSE; const GLboolean swAccum = mesaVis->accumRedBits > 0; const GLboolean swStencil = mesaVis->stencilBits > 0 && mesaVis->depthBits != 24; mesa_format rgbFormat; struct radeon_framebuffer *rfb; if (isPixmap) return GL_FALSE; /* not implemented */ rfb = CALLOC_STRUCT(radeon_framebuffer); if (!rfb) return GL_FALSE; _mesa_initialize_window_framebuffer(&rfb->base, mesaVis); if (mesaVis->redBits == 5) rgbFormat = _mesa_little_endian() ? MESA_FORMAT_B5G6R5_UNORM : MESA_FORMAT_R5G6B5_UNORM; else if (mesaVis->alphaBits == 0) rgbFormat = _mesa_little_endian() ? MESA_FORMAT_B8G8R8X8_UNORM : MESA_FORMAT_X8R8G8B8_UNORM; else rgbFormat = _mesa_little_endian() ? MESA_FORMAT_B8G8R8A8_UNORM : MESA_FORMAT_A8R8G8B8_UNORM; /* front color renderbuffer */ rfb->color_rb[0] = radeon_create_renderbuffer(rgbFormat, driDrawPriv); _mesa_add_renderbuffer(&rfb->base, BUFFER_FRONT_LEFT, &rfb->color_rb[0]->base.Base); rfb->color_rb[0]->has_surface = 1; /* back color renderbuffer */ if (mesaVis->doubleBufferMode) { rfb->color_rb[1] = radeon_create_renderbuffer(rgbFormat, driDrawPriv); _mesa_add_renderbuffer(&rfb->base, BUFFER_BACK_LEFT, &rfb->color_rb[1]->base.Base); rfb->color_rb[1]->has_surface = 1; } if (mesaVis->depthBits == 24) { if (mesaVis->stencilBits == 8) { struct radeon_renderbuffer *depthStencilRb = radeon_create_renderbuffer(MESA_FORMAT_Z24_UNORM_S8_UINT, driDrawPriv); _mesa_add_renderbuffer(&rfb->base, BUFFER_DEPTH, &depthStencilRb->base.Base); _mesa_add_renderbuffer(&rfb->base, BUFFER_STENCIL, &depthStencilRb->base.Base); depthStencilRb->has_surface = screen->depthHasSurface; } else { /* depth renderbuffer */ struct radeon_renderbuffer *depth = radeon_create_renderbuffer(MESA_FORMAT_Z24_UNORM_X8_UINT, driDrawPriv); _mesa_add_renderbuffer(&rfb->base, BUFFER_DEPTH, &depth->base.Base); depth->has_surface = screen->depthHasSurface; } } else if (mesaVis->depthBits == 16) { /* just 16-bit depth buffer, no hw stencil */ struct radeon_renderbuffer *depth = radeon_create_renderbuffer(MESA_FORMAT_Z_UNORM16, driDrawPriv); _mesa_add_renderbuffer(&rfb->base, BUFFER_DEPTH, &depth->base.Base); depth->has_surface = screen->depthHasSurface; } _swrast_add_soft_renderbuffers(&rfb->base, GL_FALSE, /* color */ swDepth, swStencil, swAccum, swAlpha, GL_FALSE /* aux */); driDrawPriv->driverPrivate = (void *) rfb; return (driDrawPriv->driverPrivate != NULL); }
/** * New in Mesa 11.2 * * Create context with attribute list. */ GLAPI OSMesaContext GLAPIENTRY OSMesaCreateContextAttribs(const int *attribList, OSMesaContext sharelist) { OSMesaContext osmesa; struct dd_function_table functions; GLint rind, gind, bind, aind; GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0; GLenum format = OSMESA_RGBA; GLint depthBits = 0, stencilBits = 0, accumBits = 0; int profile = OSMESA_COMPAT_PROFILE, version_major = 1, version_minor = 0; gl_api api_profile = API_OPENGL_COMPAT; int i; for (i = 0; attribList[i]; i += 2) { switch (attribList[i]) { case OSMESA_FORMAT: format = attribList[i+1]; switch (format) { case OSMESA_COLOR_INDEX: case OSMESA_RGBA: case OSMESA_BGRA: case OSMESA_ARGB: case OSMESA_RGB: case OSMESA_BGR: case OSMESA_RGB_565: /* legal */ break; default: return NULL; } break; case OSMESA_DEPTH_BITS: depthBits = attribList[i+1]; if (depthBits < 0) return NULL; break; case OSMESA_STENCIL_BITS: stencilBits = attribList[i+1]; if (stencilBits < 0) return NULL; break; case OSMESA_ACCUM_BITS: accumBits = attribList[i+1]; if (accumBits < 0) return NULL; break; case OSMESA_PROFILE: profile = attribList[i+1]; if (profile == OSMESA_COMPAT_PROFILE) api_profile = API_OPENGL_COMPAT; else if (profile == OSMESA_CORE_PROFILE) api_profile = API_OPENGL_CORE; else return NULL; break; case OSMESA_CONTEXT_MAJOR_VERSION: version_major = attribList[i+1]; if (version_major < 1) return NULL; break; case OSMESA_CONTEXT_MINOR_VERSION: version_minor = attribList[i+1]; if (version_minor < 0) return NULL; break; case 0: /* end of list */ break; default: fprintf(stderr, "Bad attribute in OSMesaCreateContextAttribs()\n"); return NULL; } } rind = gind = bind = aind = 0; if (format==OSMESA_RGBA) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = CHAN_BITS; rind = 0; gind = 1; bind = 2; aind = 3; } else if (format==OSMESA_BGRA) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = CHAN_BITS; bind = 0; gind = 1; rind = 2; aind = 3; } else if (format==OSMESA_ARGB) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = CHAN_BITS; aind = 0; rind = 1; gind = 2; bind = 3; } else if (format==OSMESA_RGB) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = 0; rind = 0; gind = 1; bind = 2; } else if (format==OSMESA_BGR) { redBits = CHAN_BITS; greenBits = CHAN_BITS; blueBits = CHAN_BITS; alphaBits = 0; rind = 2; gind = 1; bind = 0; } #if CHAN_TYPE == GL_UNSIGNED_BYTE else if (format==OSMESA_RGB_565) { redBits = 5; greenBits = 6; blueBits = 5; alphaBits = 0; rind = 0; /* not used */ gind = 0; bind = 0; } #endif else { return NULL; } osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context); if (osmesa) { osmesa->gl_visual = _mesa_create_visual( GL_FALSE, /* double buffer */ GL_FALSE, /* stereo */ redBits, greenBits, blueBits, alphaBits, depthBits, stencilBits, accumBits, accumBits, accumBits, alphaBits ? accumBits : 0, 1 /* num samples */ ); if (!osmesa->gl_visual) { free(osmesa); return NULL; } /* Initialize device driver function table */ _mesa_init_driver_functions(&functions); /* override with our functions */ functions.GetString = get_string; functions.UpdateState = osmesa_update_state_wrapper; if (!_mesa_initialize_context(&osmesa->mesa, api_profile, osmesa->gl_visual, sharelist ? &sharelist->mesa : (struct gl_context *) NULL, &functions)) { _mesa_destroy_visual( osmesa->gl_visual ); free(osmesa); return NULL; } _mesa_enable_sw_extensions(&(osmesa->mesa)); osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual); if (!osmesa->gl_buffer) { _mesa_destroy_visual( osmesa->gl_visual ); _mesa_free_context_data( &osmesa->mesa ); free(osmesa); return NULL; } /* Create depth/stencil/accum buffers. We'll create the color * buffer later in OSMesaMakeCurrent(). */ _swrast_add_soft_renderbuffers(osmesa->gl_buffer, GL_FALSE, /* color */ osmesa->gl_visual->haveDepthBuffer, osmesa->gl_visual->haveStencilBuffer, osmesa->gl_visual->haveAccumBuffer, GL_FALSE, /* alpha */ GL_FALSE /* aux */ ); osmesa->format = format; osmesa->userRowLength = 0; osmesa->yup = GL_TRUE; osmesa->rInd = rind; osmesa->gInd = gind; osmesa->bInd = bind; osmesa->aInd = aind; _mesa_meta_init(&osmesa->mesa); /* Initialize the software rasterizer and helper modules. */ { struct gl_context *ctx = &osmesa->mesa; SWcontext *swrast; TNLcontext *tnl; if (!_swrast_CreateContext( ctx ) || !_vbo_CreateContext( ctx ) || !_tnl_CreateContext( ctx ) || !_swsetup_CreateContext( ctx )) { _mesa_destroy_visual(osmesa->gl_visual); _mesa_free_context_data(ctx); free(osmesa); return NULL; } _swsetup_Wakeup( ctx ); /* use default TCL pipeline */ tnl = TNL_CONTEXT(ctx); tnl->Driver.RunPipeline = _tnl_run_pipeline; ctx->Driver.MapRenderbuffer = osmesa_MapRenderbuffer; ctx->Driver.UnmapRenderbuffer = osmesa_UnmapRenderbuffer; ctx->Driver.GenerateMipmap = _mesa_generate_mipmap; /* Extend the software rasterizer with our optimized line and triangle * drawing functions. */ swrast = SWRAST_CONTEXT( ctx ); swrast->choose_line = osmesa_choose_line; swrast->choose_triangle = osmesa_choose_triangle; _mesa_compute_version(ctx); if (ctx->Version < version_major * 10 + version_minor) { _mesa_destroy_visual(osmesa->gl_visual); _mesa_free_context_data(ctx); free(osmesa); return NULL; } /* Exec table initialization requires the version to be computed */ _mesa_initialize_dispatch_tables(ctx); _mesa_initialize_vbo_vtxfmt(ctx); } } return osmesa; }
/** * Allocate a new XMesaBuffer object which corresponds to the given drawable. * Note that XMesaBuffer is derived from struct gl_framebuffer. * The new XMesaBuffer will not have any size (Width=Height=0). * * \param d the corresponding X drawable (window or pixmap) * \param type either WINDOW, PIXMAP or PBUFFER, describing d * \param vis the buffer's visual * \param cmap the window's colormap, if known. * \return new XMesaBuffer or NULL if any problem */ static XMesaBuffer create_xmesa_buffer(XMesaDrawable d, BufferType type, XMesaVisual vis, XMesaColormap cmap) { XMesaBuffer b; ASSERT(type == WINDOW || type == PIXMAP || type == PBUFFER); b = (XMesaBuffer) CALLOC_STRUCT(xmesa_buffer); if (!b) return NULL; b->display = vis->display; b->xm_visual = vis; b->type = type; b->cmap = cmap; _mesa_initialize_window_framebuffer(&b->mesa_buffer, &vis->mesa_visual); b->mesa_buffer.Delete = xmesa_delete_framebuffer; /* * Front renderbuffer */ b->frontxrb = xmesa_new_renderbuffer(NULL, 0, vis, GL_FALSE); if (!b->frontxrb) { free(b); return NULL; } b->frontxrb->Parent = b; b->frontxrb->drawable = d; b->frontxrb->pixmap = (XMesaPixmap) d; _mesa_add_renderbuffer(&b->mesa_buffer, BUFFER_FRONT_LEFT, &b->frontxrb->Base.Base); /* * Back renderbuffer */ if (vis->mesa_visual.doubleBufferMode) { b->backxrb = xmesa_new_renderbuffer(NULL, 0, vis, GL_TRUE); if (!b->backxrb) { /* XXX free front xrb too */ free(b); return NULL; } b->backxrb->Parent = b; /* determine back buffer implementation */ b->db_mode = vis->ximage_flag ? BACK_XIMAGE : BACK_PIXMAP; _mesa_add_renderbuffer(&b->mesa_buffer, BUFFER_BACK_LEFT, &b->backxrb->Base.Base); } /* * Other renderbuffer (depth, stencil, etc) */ _swrast_add_soft_renderbuffers(&b->mesa_buffer, GL_FALSE, /* color */ vis->mesa_visual.haveDepthBuffer, vis->mesa_visual.haveStencilBuffer, vis->mesa_visual.haveAccumBuffer, GL_FALSE, /* software alpha buffer */ vis->mesa_visual.numAuxBuffers > 0 ); /* GLX_EXT_texture_from_pixmap */ b->TextureTarget = 0; b->TextureFormat = GLX_TEXTURE_FORMAT_NONE_EXT; b->TextureMipmap = 0; /* insert buffer into linked list */ b->Next = XMesaBufferList; XMesaBufferList = b; return b; }
BOOL sw_SetPixelFormat(HDC hdc, struct wgl_dc_data* dc_data, INT format) { struct sw_framebuffer* fb; BOOL doubleBuffered; assert(dc_data->sw_data == NULL); /* So, someone is crazy enough to ask for sw implementation. Announce it. */ TRACE("OpenGL software implementation START!\n"); /* allocate our structure */ fb = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, FIELD_OFFSET(struct sw_framebuffer, bmi.bmiColors[3])); if(!fb) { ERR("HeapAlloc FAILED!\n"); return FALSE; } /* Get the format index */ fb->format_index = index_from_format(dc_data, format, &doubleBuffered); TRACE("Using format %u - double buffered: %x.\n", fb->format_index, doubleBuffered); fb->flags = doubleBuffered ? SW_FB_DOUBLEBUFFERED : 0; /* Set the bitmap info describing the framebuffer */ fb->bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); fb->bmi.bmiHeader.biPlanes = 1; fb->bmi.bmiHeader.biBitCount = pixel_formats[fb->format_index].color_bits; fb->bmi.bmiHeader.biCompression = pixel_formats[fb->format_index].bmp_compression; fb->bmi.bmiHeader.biSizeImage = 0; fb->bmi.bmiHeader.biXPelsPerMeter = 0; fb->bmi.bmiHeader.biYPelsPerMeter = 0; fb->bmi.bmiHeader.biClrUsed = 0; fb->bmi.bmiHeader.biClrImportant = 0; *((DWORD*)&fb->bmi.bmiColors[0]) = pixel_formats[fb->format_index].red_mask; *((DWORD*)&fb->bmi.bmiColors[1]) = pixel_formats[fb->format_index].green_mask; *((DWORD*)&fb->bmi.bmiColors[2]) = pixel_formats[fb->format_index].blue_mask; /* Save the HDC */ fb->hdc = hdc; /* Allocate the visual structure describing the format */ fb->gl_visual = _mesa_create_visual( !!(fb->flags & SW_FB_DOUBLEBUFFERED), GL_FALSE, /* No stereoscopic support */ pixel_formats[fb->format_index].red_bits, pixel_formats[fb->format_index].green_bits, pixel_formats[fb->format_index].blue_bits, pixel_formats[fb->format_index].alpha_bits, pixel_formats[fb->format_index].depth_bits, pixel_formats[fb->format_index].stencil_bits, pixel_formats[fb->format_index].accum_bits, pixel_formats[fb->format_index].accum_bits, pixel_formats[fb->format_index].accum_bits, pixel_formats[fb->format_index].alpha_bits ? pixel_formats[fb->format_index].accum_bits : 0); if(!fb->gl_visual) { ERR("Failed to allocate a GL visual.\n"); HeapFree(GetProcessHeap(), 0, fb); return FALSE; } /* Allocate the framebuffer structure */ fb->gl_buffer = _mesa_create_framebuffer(fb->gl_visual); if (!fb->gl_buffer) { ERR("Failed to allocate the mesa framebuffer structure.\n"); _mesa_destroy_visual( fb->gl_visual ); HeapFree(GetProcessHeap(), 0, fb); return FALSE; } /* Add the depth/stencil/accum buffers */ _swrast_add_soft_renderbuffers(fb->gl_buffer, GL_FALSE, /* color */ fb->gl_visual->haveDepthBuffer, fb->gl_visual->haveStencilBuffer, fb->gl_visual->haveAccumBuffer, GL_FALSE, /* alpha */ GL_FALSE /* aux */ ); /* Initialize our render buffers */ sw_init_renderbuffers(fb); /* Everything went fine */ dc_data->sw_data = fb; return TRUE; }
MesaSoftwareRenderer::MesaSoftwareRenderer(BGLView* view, ulong options, BGLDispatcher* dispatcher) : BGLRenderer(view, options, dispatcher), fBitmap(NULL), fDirectModeEnabled(false), fInfo(NULL), fInfoLocker("info locker"), fContext(NULL), fVisual(NULL), fFrameBuffer(NULL), fFrontRenderBuffer(NULL), fBackRenderBuffer(NULL), fColorSpace(B_NO_COLOR_SPACE) { CALLED(); fClearColor[BE_RCOMP] = 0; fClearColor[BE_GCOMP] = 0; fClearColor[BE_BCOMP] = 0; fClearColor[BE_ACOMP] = 0; fClearIndex = 0; fColorSpace = BScreen(GLView()->Window()).ColorSpace(); // We force single buffering for the time being options &= ~BGL_DOUBLE; const GLboolean rgbFlag = ((options & BGL_INDEX) == 0); const GLboolean alphaFlag = ((options & BGL_ALPHA) == BGL_ALPHA); const GLboolean dblFlag = ((options & BGL_DOUBLE) == BGL_DOUBLE); const GLboolean stereoFlag = false; const GLint depth = (options & BGL_DEPTH) ? 16 : 0; const GLint stencil = (options & BGL_STENCIL) ? 8 : 0; const GLint accum = (options & BGL_ACCUM) ? 16 : 0; const GLint red = rgbFlag ? 8 : 0; const GLint green = rgbFlag ? 8 : 0; const GLint blue = rgbFlag ? 8 : 0; const GLint alpha = alphaFlag ? 8 : 0; fOptions = options; // | BGL_INDIRECT; struct dd_function_table functions; fVisual = _mesa_create_visual(dblFlag, stereoFlag, red, green, blue, alpha, depth, stencil, accum, accum, accum, alpha ? accum : 0, 1); // Initialize device driver function table _mesa_init_driver_functions(&functions); functions.GetString = _GetString; functions.UpdateState = _UpdateState; functions.GetBufferSize = NULL; functions.Error = _Error; functions.Viewport = _Viewport; functions.Flush = _Flush; // create core context #if HAIKU_MESA_VER <= 708 fContext = _mesa_create_context(fVisual, NULL, &functions, this); #else fContext = _mesa_create_context(API_OPENGL, fVisual, NULL, &functions, this); #endif if (!fContext) { ERROR("%s: Failed to create Mesa context!\n", __func__); _mesa_destroy_visual(fVisual); return; } /* Initialize the software rasterizer and helper modules. */ _swrast_CreateContext(fContext); _vbo_CreateContext(fContext); _tnl_CreateContext(fContext); _swsetup_CreateContext(fContext); _swsetup_Wakeup(fContext); // Use default TCL pipeline TNL_CONTEXT(fContext)->Driver.RunPipeline = _tnl_run_pipeline; _mesa_meta_init(fContext); _mesa_enable_sw_extensions(fContext); _mesa_enable_1_3_extensions(fContext); _mesa_enable_1_4_extensions(fContext); _mesa_enable_1_5_extensions(fContext); _mesa_enable_2_0_extensions(fContext); _mesa_enable_2_1_extensions(fContext); // create core framebuffer fFrameBuffer = (struct msr_framebuffer*)calloc(1, sizeof(*fFrameBuffer)); if (fFrameBuffer == NULL) { ERROR("%s: Unable to calloc GL FrameBuffer!\n", __func__); _mesa_destroy_visual(fVisual); return; } _mesa_initialize_window_framebuffer(&fFrameBuffer->base, fVisual); // Setup front render buffer fFrontRenderBuffer = _NewRenderBuffer(true); if (fFrontRenderBuffer == NULL) { ERROR("%s: FrontRenderBuffer is requested but unallocated!\n", __func__); _mesa_destroy_visual(fVisual); free(fFrameBuffer); return; } _mesa_add_renderbuffer(&fFrameBuffer->base, BUFFER_FRONT_LEFT, &fFrontRenderBuffer->base); // Setup back render buffer (if requested) if (fVisual->doubleBufferMode) { fBackRenderBuffer = _NewRenderBuffer(false); if (fBackRenderBuffer == NULL) { ERROR("%s: BackRenderBuffer is requested but unallocated!\n", __func__); _mesa_destroy_visual(fVisual); free(fFrameBuffer); return; } _mesa_add_renderbuffer(&fFrameBuffer->base, BUFFER_BACK_LEFT, &fBackRenderBuffer->base); } #if HAIKU_MESA_VER >= 709 // New Mesa _swrast_add_soft_renderbuffers(&fFrameBuffer->base, GL_FALSE, fVisual->haveDepthBuffer, fVisual->haveStencilBuffer, fVisual->haveAccumBuffer, alphaFlag, GL_FALSE); #else // Old Mesa _mesa_add_soft_renderbuffers(&fFrameBuffer->base, GL_FALSE, fVisual->haveDepthBuffer, fVisual->haveStencilBuffer, fVisual->haveAccumBuffer, alphaFlag, GL_FALSE); #endif BRect bounds = view->Bounds(); fWidth = fNewWidth = (GLint)bounds.Width(); fHeight = fNewHeight = (GLint)bounds.Height(); // some stupid applications (Quake2) don't even think about calling LockGL() // before using glGetString and its glGet*() friends... // so make sure there is at least a valid context. if (!_mesa_get_current_context()) { LockGL(); // not needed, we don't have a looper yet: UnlockLooper(); } }