/* * (C) Copyright IBM Corporation 2002, 2004 * 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 * THE AUTHORS 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. */ /** * \file dri_util.c * DRI utility functions. * * This module acts as glue between GLX and the actual hardware driver. A DRI * driver doesn't really \e have to use any of this - it's optional. But, some * useful stuff is done here that otherwise would have to be duplicated in most * drivers. * * Basically, these utility functions take care of some of the dirty details of * screen initialization, context creation, context binding, DRM setup, etc. * * These functions are compiled into each DRI driver so libGL.so knows nothing * about them. */ #include #include "dri_util.h" #include "utils.h" #include "util/xmlpool.h" #include "main/mtypes.h" #include "main/framebuffer.h" #include "main/version.h" #include "main/debug_output.h" #include "main/errors.h" #include "main/macros.h" const char __dri2ConfigOptions[] = DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_1) DRI_CONF_SECTION_END DRI_CONF_END; /*****************************************************************/ /** \name Screen handling functions */ /*****************************************************************/ /*@{*/ static void setupLoaderExtensions(__DRIscreen *psp, const __DRIextension **extensions) { int i; for (i = 0; extensions[i]; i++) { if (strcmp(extensions[i]->name, __DRI_DRI2_LOADER) == 0) psp->dri2.loader = (__DRIdri2LoaderExtension *) extensions[i]; if (strcmp(extensions[i]->name, __DRI_IMAGE_LOOKUP) == 0) psp->dri2.image = (__DRIimageLookupExtension *) extensions[i]; if (strcmp(extensions[i]->name, __DRI_USE_INVALIDATE) == 0) psp->dri2.useInvalidate = (__DRIuseInvalidateExtension *) extensions[i]; if (strcmp(extensions[i]->name, __DRI_BACKGROUND_CALLABLE) == 0) psp->dri2.backgroundCallable = (__DRIbackgroundCallableExtension *) extensions[i]; if (strcmp(extensions[i]->name, __DRI_SWRAST_LOADER) == 0) psp->swrast_loader = (__DRIswrastLoaderExtension *) extensions[i]; if (strcmp(extensions[i]->name, __DRI_IMAGE_LOADER) == 0) psp->image.loader = (__DRIimageLoaderExtension *) extensions[i]; } } /** * This pointer determines which driver API we'll use in the case of the * loader not passing us an explicit driver extensions list (that would, * itself, contain a pointer to a driver API.) * * A driver's driDriverGetExtensions_drivername() can update this pointer to * what it's returning, and a loader that is ignorant of createNewScreen2() * will get the correct driver screen created, as long as no other * driDriverGetExtensions() happened in between the first one and the * createNewScreen(). * * This allows the X Server to not require the significant dri_interface.h * updates for doing createNewScreen2(), which would discourage backporting of * the X Server patches to support the new loader interface. */ const struct __DriverAPIRec *globalDriverAPI = &driDriverAPI; /** * This is the first entrypoint in the driver called by the DRI driver loader * after dlopen()ing it. * * It's used to create global state for the driver across contexts on the same * Display. */ static __DRIscreen * driCreateNewScreen2(int scrn, int fd, const __DRIextension **extensions, const __DRIextension **driver_extensions, const __DRIconfig ***driver_configs, void *data) { static const __DRIextension *emptyExtensionList[] = { NULL }; __DRIscreen *psp; psp = calloc(1, sizeof(*psp)); if (!psp) return NULL; /* By default, use the global driDriverAPI symbol (non-megadrivers). */ psp->driver = globalDriverAPI; /* If the driver exposes its vtable through its extensions list * (megadrivers), use that instead. */ if (driver_extensions) { for (int i = 0; driver_extensions[i]; i++) { if (strcmp(driver_extensions[i]->name, __DRI_DRIVER_VTABLE) == 0) { psp->driver = ((__DRIDriverVtableExtension *)driver_extensions[i])->vtable; } } } setupLoaderExtensions(psp, extensions); psp->loaderPrivate = data; psp->extensions = emptyExtensionList; psp->fd = fd; psp->myNum = scrn; /* Option parsing before ->InitScreen(), as some options apply there. */ driParseOptionInfo(&psp->optionInfo, __dri2ConfigOptions); driParseConfigFiles(&psp->optionCache, &psp->optionInfo, psp->myNum, "dri2"); *driver_configs = psp->driver->InitScreen(psp); if (*driver_configs == NULL) { free(psp); return NULL; } struct gl_constants consts = { 0 }; gl_api api; unsigned version; api = API_OPENGLES2; if (_mesa_override_gl_version_contextless(&consts, &api, &version)) psp->max_gl_es2_version = version; api = API_OPENGL_COMPAT; if (_mesa_override_gl_version_contextless(&consts, &api, &version)) { psp->max_gl_core_version = version; if (api == API_OPENGL_COMPAT) psp->max_gl_compat_version = version; } psp->api_mask = 0; if (psp->max_gl_compat_version > 0) psp->api_mask |= (1 << __DRI_API_OPENGL); if (psp->max_gl_core_version > 0) psp->api_mask |= (1 << __DRI_API_OPENGL_CORE); if (psp->max_gl_es1_version > 0) psp->api_mask |= (1 << __DRI_API_GLES); if (psp->max_gl_es2_version > 0) psp->api_mask |= (1 << __DRI_API_GLES2); if (psp->max_gl_es2_version >= 30) psp->api_mask |= (1 << __DRI_API_GLES3); return psp; } static __DRIscreen * dri2CreateNewScreen(int scrn, int fd, const __DRIextension **extensions, const __DRIconfig ***driver_configs, void *data) { return driCreateNewScreen2(scrn, fd, extensions, NULL, driver_configs, data); } /** swrast driver createNewScreen entrypoint. */ static __DRIscreen * driSWRastCreateNewScreen(int scrn, const __DRIextension **extensions, const __DRIconfig ***driver_configs, void *data) { return driCreateNewScreen2(scrn, -1, extensions, NULL, driver_configs, data); } static __DRIscreen * driSWRastCreateNewScreen2(int scrn, const __DRIextension **extensions, const __DRIextension **driver_extensions, const __DRIconfig ***driver_configs, void *data) { return driCreateNewScreen2(scrn, -1, extensions, driver_extensions, driver_configs, data); } /** * Destroy the per-screen private information. * * \internal * This function calls __DriverAPIRec::DestroyScreen on \p screenPrivate, calls * drmClose(), and finally frees \p screenPrivate. */ static void driDestroyScreen(__DRIscreen *psp) { if (psp) { /* No interaction with the X-server is possible at this point. This * routine is called after XCloseDisplay, so there is no protocol * stream open to the X-server anymore. */ psp->driver->DestroyScreen(psp); driDestroyOptionCache(&psp->optionCache); driDestroyOptionInfo(&psp->optionInfo); free(psp); } } static const __DRIextension **driGetExtensions(__DRIscreen *psp) { return psp->extensions; } /*@}*/ static bool validate_context_version(__DRIscreen *screen, int mesa_api, unsigned major_version, unsigned minor_version, unsigned *dri_ctx_error) { unsigned req_version = 10 * major_version + minor_version; unsigned max_version = 0; switch (mesa_api) { case API_OPENGL_COMPAT: max_version = screen->max_gl_compat_version; break; case API_OPENGL_CORE: max_version = screen->max_gl_core_version; break; case API_OPENGLES: max_version = screen->max_gl_es1_version; break; case API_OPENGLES2: max_version = screen->max_gl_es2_version; break; default: max_version = 0; break; } if (max_version == 0) { *dri_ctx_error = __DRI_CTX_ERROR_BAD_API; return false; } else if (req_version > max_version) { *dri_ctx_error = __DRI_CTX_ERROR_BAD_VERSION; return false; } return true; } /*****************************************************************/ /** \name Context handling functions */ /*****************************************************************/ /*@{*/ static __DRIcontext * driCreateContextAttribs(__DRIscreen *screen, int api, const __DRIconfig *config, __DRIcontext *shared, unsigned num_attribs, const uint32_t *attribs, unsigned *error, void *data) { __DRIcontext *context; const struct gl_config *modes = (config != NULL) ? &config->modes : NULL; void *shareCtx = (shared != NULL) ? shared->driverPrivate : NULL; gl_api mesa_api; struct __DriverContextConfig ctx_config; ctx_config.major_version = 1; ctx_config.minor_version = 0; ctx_config.flags = 0; ctx_config.attribute_mask = 0; ctx_config.priority = __DRI_CTX_PRIORITY_MEDIUM; assert((num_attribs == 0) || (attribs != NULL)); if (!(screen->api_mask & (1 << api))) { *error = __DRI_CTX_ERROR_BAD_API; return NULL; } switch (api) { case __DRI_API_OPENGL: mesa_api = API_OPENGL_COMPAT; break; case __DRI_API_GLES: mesa_api = API_OPENGLES; break; case __DRI_API_GLES2: case __DRI_API_GLES3: mesa_api = API_OPENGLES2; break; case __DRI_API_OPENGL_CORE: mesa_api = API_OPENGL_CORE; break; default: *error = __DRI_CTX_ERROR_BAD_API; return NULL; } for (unsigned i = 0; i < num_attribs; i++) { switch (attribs[i * 2]) { case __DRI_CTX_ATTRIB_MAJOR_VERSION: ctx_config.major_version = attribs[i * 2 + 1]; break; case __DRI_CTX_ATTRIB_MINOR_VERSION: ctx_config.minor_version = attribs[i * 2 + 1]; break; case __DRI_CTX_ATTRIB_FLAGS: ctx_config.flags = attribs[i * 2 + 1]; break; case __DRI_CTX_ATTRIB_RESET_STRATEGY: if (attribs[i * 2 + 1] != __DRI_CTX_RESET_NO_NOTIFICATION) { ctx_config.attribute_mask |= __DRIVER_CONTEXT_ATTRIB_RESET_STRATEGY; ctx_config.reset_strategy = attribs[i * 2 + 1]; } else { ctx_config.attribute_mask &= ~__DRIVER_CONTEXT_ATTRIB_RESET_STRATEGY; } break; case __DRI_CTX_ATTRIB_PRIORITY: ctx_config.attribute_mask |= __DRIVER_CONTEXT_ATTRIB_PRIORITY; ctx_config.priority = attribs[i * 2 + 1]; break; case __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR: if (attribs[i * 2 + 1] != __DRI_CTX_RELEASE_BEHAVIOR_FLUSH) { ctx_config.attribute_mask |= __DRIVER_CONTEXT_ATTRIB_RELEASE_BEHAVIOR; ctx_config.release_behavior = attribs[i * 2 + 1]; } else { ctx_config.attribute_mask &= ~__DRIVER_CONTEXT_ATTRIB_RELEASE_BEHAVIOR; } break; default: /* We can't create a context that satisfies the requirements of an * attribute that we don't understand. Return failure. */ assert(!"Should not get here."); *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE; return NULL; } } /* The specific Mesa driver may not support the GL_ARB_compatibilty * extension or the compatibility profile. In that case, we treat an * API_OPENGL_COMPAT 3.1 as API_OPENGL_CORE. We reject API_OPENGL_COMPAT * 3.2+ in any case. */ if (mesa_api == API_OPENGL_COMPAT && ctx_config.major_version == 3 && ctx_config.minor_version == 1 && screen->max_gl_compat_version < 31) mesa_api = API_OPENGL_CORE; /* The latest version of EGL_KHR_create_context spec says: * * "If the EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR flag bit is set in * EGL_CONTEXT_FLAGS_KHR, then a will be created. * [...] This bit is supported for OpenGL and OpenGL ES contexts. * * No other EGL_CONTEXT_OPENGL_*_BIT is legal for an ES context. * * However, Mesa's EGL layer translates the context attribute * EGL_CONTEXT_OPENGL_ROBUST_ACCESS into the context flag * __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS. That attribute is legal for ES * (with EGL 1.5 or EGL_EXT_create_context_robustness) and GL (only with * EGL 1.5). * * From the EGL_EXT_create_context_robustness spec: * * This extension is written against the OpenGL ES 2.0 Specification * but can apply to OpenGL ES 1.1 and up. * * From the EGL 1.5 (2014.08.27) spec, p55: * * If the EGL_CONTEXT_OPENGL_ROBUST_ACCESS attribute is set to * EGL_TRUE, a context supporting robust buffer access will be created. * OpenGL contexts must support the GL_ARB_robustness extension, or * equivalent core API functional- ity. OpenGL ES contexts must support * the GL_EXT_robustness extension, or equivalent core API * functionality. */ if (mesa_api != API_OPENGL_COMPAT && mesa_api != API_OPENGL_CORE && (ctx_config.flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS | __DRI_CTX_FLAG_NO_ERROR))) { *error = __DRI_CTX_ERROR_BAD_FLAG; return NULL; } /* There are no forward-compatible contexts before OpenGL 3.0. The * GLX_ARB_create_context spec says: * * "Forward-compatible contexts are defined only for OpenGL versions * 3.0 and later." * * Forward-looking contexts are supported by silently converting the * requested API to API_OPENGL_CORE. * * In Mesa, a debug context is the same as a regular context. */ if ((ctx_config.flags & __DRI_CTX_FLAG_FORWARD_COMPATIBLE) != 0) { mesa_api = API_OPENGL_CORE; } const uint32_t allowed_flags = (__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_FORWARD_COMPATIBLE | __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS | __DRI_CTX_FLAG_NO_ERROR); if (ctx_config.flags & ~allowed_flags) { *error = __DRI_CTX_ERROR_UNKNOWN_FLAG; return NULL; } if (!validate_context_version(screen, mesa_api, ctx_config.major_version, ctx_config.minor_version, error)) return NULL; context = calloc(1, sizeof *context); if (!context) { *error = __DRI_CTX_ERROR_NO_MEMORY; return NULL; } context->loaderPrivate = data; context->driScreenPriv = screen; context->driDrawablePriv = NULL; context->driReadablePriv = NULL; if (!screen->driver->CreateContext(mesa_api, modes, context, &ctx_config, error, shareCtx)) { free(context); return NULL; } *error = __DRI_CTX_ERROR_SUCCESS; return context; } void driContextSetFlags(struct gl_context *ctx, uint32_t flags) { if ((flags & __DRI_CTX_FLAG_FORWARD_COMPATIBLE) != 0) ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT; if ((flags & __DRI_CTX_FLAG_DEBUG) != 0) { _mesa_set_debug_state_int(ctx, GL_DEBUG_OUTPUT, GL_TRUE); ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_DEBUG_BIT; } if ((flags & __DRI_CTX_FLAG_NO_ERROR) != 0) ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR; } static __DRIcontext * driCreateNewContextForAPI(__DRIscreen *screen, int api, const __DRIconfig *config, __DRIcontext *shared, void *data) { unsigned error; return driCreateContextAttribs(screen, api, config, shared, 0, NULL, &error, data); } static __DRIcontext * driCreateNewContext(__DRIscreen *screen, const __DRIconfig *config, __DRIcontext *shared, void *data) { return driCreateNewContextForAPI(screen, __DRI_API_OPENGL, config, shared, data); } /** * Destroy the per-context private information. * * \internal * This function calls __DriverAPIRec::DestroyContext on \p contextPrivate, calls * drmDestroyContext(), and finally frees \p contextPrivate. */ static void driDestroyContext(__DRIcontext *pcp) { if (pcp) { pcp->driScreenPriv->driver->DestroyContext(pcp); free(pcp); } } static int driCopyContext(__DRIcontext *dest, __DRIcontext *src, unsigned long mask) { (void) dest; (void) src; (void) mask; return GL_FALSE; } /*@}*/ /*****************************************************************/ /** \name Context (un)binding functions */ /*****************************************************************/ /*@{*/ static void dri_get_drawable(__DRIdrawable *pdp); static void dri_put_drawable(__DRIdrawable *pdp); /** * This function takes both a read buffer and a draw buffer. This is needed * for \c glXMakeCurrentReadSGI or GLX 1.3's \c glXMakeContextCurrent * function. */ static int driBindContext(__DRIcontext *pcp, __DRIdrawable *pdp, __DRIdrawable *prp) { /* ** Assume error checking is done properly in glXMakeCurrent before ** calling driUnbindContext. */ if (!pcp) return GL_FALSE; /* Bind the drawable to the context */ pcp->driDrawablePriv = pdp; pcp->driReadablePriv = prp; if (pdp) { pdp->driContextPriv = pcp; dri_get_drawable(pdp); } if (prp && pdp != prp) { dri_get_drawable(prp); } return pcp->driScreenPriv->driver->MakeCurrent(pcp, pdp, prp); } /** * Unbind context. * * \param scrn the screen. * \param gc context. * * \return \c GL_TRUE on success, or \c GL_FALSE on failure. * * \internal * This function calls __DriverAPIRec::UnbindContext, and then decrements * __DRIdrawableRec::refcount which must be non-zero for a successful * return. * * While casting the opaque private pointers associated with the parameters * into their respective real types it also assures they are not \c NULL. */ static int driUnbindContext(__DRIcontext *pcp) { __DRIdrawable *pdp; __DRIdrawable *prp; /* ** Assume error checking is done properly in glXMakeCurrent before ** calling driUnbindContext. */ if (pcp == NULL) return GL_FALSE; /* ** Call driUnbindContext before checking for valid drawables ** to handle surfaceless contexts properly. */ pcp->driScreenPriv->driver->UnbindContext(pcp); pdp = pcp->driDrawablePriv; prp = pcp->driReadablePriv; /* already unbound */ if (!pdp && !prp) return GL_TRUE; assert(pdp); if (pdp->refcount == 0) { /* ERROR!!! */ return GL_FALSE; } dri_put_drawable(pdp); if (prp != pdp) { if (prp->refcount == 0) { /* ERROR!!! */ return GL_FALSE; } dri_put_drawable(prp); } pcp->driDrawablePriv = NULL; pcp->driReadablePriv = NULL; return GL_TRUE; } /*@}*/ static void dri_get_drawable(__DRIdrawable *pdp) { pdp->refcount++; } static void dri_put_drawable(__DRIdrawable *pdp) { if (pdp) { pdp->refcount--; if (pdp->refcount) return; pdp->driScreenPriv->driver->DestroyBuffer(pdp); free(pdp); } } static __DRIdrawable * driCreateNewDrawable(__DRIscreen *screen, const __DRIconfig *config, void *data) { __DRIdrawable *pdraw; assert(data != NULL); pdraw = malloc(sizeof *pdraw); if (!pdraw) return NULL; pdraw->loaderPrivate = data; pdraw->driScreenPriv = screen; pdraw->driContextPriv = NULL; pdraw->refcount = 0; pdraw->lastStamp = 0; pdraw->w = 0; pdraw->h = 0; dri_get_drawable(pdraw); if (!screen->driver->CreateBuffer(screen, pdraw, &config->modes, GL_FALSE)) { free(pdraw); return NULL; } pdraw->dri2.stamp = pdraw->lastStamp + 1; return pdraw; } static void driDestroyDrawable(__DRIdrawable *pdp) { /* * The loader's data structures are going away, even if pdp itself stays * around for the time being because it is currently bound. This happens * when a currently bound GLX pixmap is destroyed. * * Clear out the pointer back into the loader's data structures to avoid * accessing an outdated pointer. */ pdp->loaderPrivate = NULL; dri_put_drawable(pdp); } static __DRIbuffer * dri2AllocateBuffer(__DRIscreen *screen, unsigned int attachment, unsigned int format, int width, int height) { return screen->driver->AllocateBuffer(screen, attachment, format, width, height); } static void dri2ReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer) { screen->driver->ReleaseBuffer(screen, buffer); } static int dri2ConfigQueryb(__DRIscreen *screen, const char *var, unsigned char *val) { if (!driCheckOption(&screen->optionCache, var, DRI_BOOL)) return -1; *val = driQueryOptionb(&screen->optionCache, var); return 0; } static int dri2ConfigQueryi(__DRIscreen *screen, const char *var, int *val) { if (!driCheckOption(&screen->optionCache, var, DRI_INT) && !driCheckOption(&screen->optionCache, var, DRI_ENUM)) return -1; *val = driQueryOptioni(&screen->optionCache, var); return 0; } static int dri2ConfigQueryf(__DRIscreen *screen, const char *var, float *val) { if (!driCheckOption(&screen->optionCache, var, DRI_FLOAT)) return -1; *val = driQueryOptionf(&screen->optionCache, var); return 0; } static unsigned int driGetAPIMask(__DRIscreen *screen) { return screen->api_mask; } /** * swrast swapbuffers entrypoint. * * DRI2 implements this inside the loader with only flushes handled by the * driver. */ static void driSwapBuffers(__DRIdrawable *pdp) { assert(pdp->driScreenPriv->swrast_loader); pdp->driScreenPriv->driver->SwapBuffers(pdp); } /** Core interface */ const __DRIcoreExtension driCoreExtension = { .base = { __DRI_CORE, 2 }, .createNewScreen = NULL, .destroyScreen = driDestroyScreen, .getExtensions = driGetExtensions, .getConfigAttrib = driGetConfigAttrib, .indexConfigAttrib = driIndexConfigAttrib, .createNewDrawable = NULL, .destroyDrawable = driDestroyDrawable, .swapBuffers = driSwapBuffers, /* swrast */ .createNewContext = driCreateNewContext, /* swrast */ .copyContext = driCopyContext, .destroyContext = driDestroyContext, .bindContext = driBindContext, .unbindContext = driUnbindContext }; /** DRI2 interface */ const __DRIdri2Extension driDRI2Extension = { .base = { __DRI_DRI2, 4 }, .createNewScreen = dri2CreateNewScreen, .createNewDrawable = driCreateNewDrawable, .createNewContext = driCreateNewContext, .getAPIMask = driGetAPIMask, .createNewContextForAPI = driCreateNewContextForAPI, .allocateBuffer = dri2AllocateBuffer, .releaseBuffer = dri2ReleaseBuffer, .createContextAttribs = driCreateContextAttribs, .createNewScreen2 = driCreateNewScreen2, }; const __DRIswrastExtension driSWRastExtension = { .base = { __DRI_SWRAST, 4 }, .createNewScreen = driSWRastCreateNewScreen, .createNewDrawable = driCreateNewDrawable, .createNewContextForAPI = driCreateNewContextForAPI, .createContextAttribs = driCreateContextAttribs, .createNewScreen2 = driSWRastCreateNewScreen2, }; const __DRI2configQueryExtension dri2ConfigQueryExtension = { .base = { __DRI2_CONFIG_QUERY, 1 }, .configQueryb = dri2ConfigQueryb, .configQueryi = dri2ConfigQueryi, .configQueryf = dri2ConfigQueryf, }; const __DRI2flushControlExtension dri2FlushControlExtension = { .base = { __DRI2_FLUSH_CONTROL, 1 } }; void dri2InvalidateDrawable(__DRIdrawable *drawable) { drawable->dri2.stamp++; } /** * Check that the gl_framebuffer associated with dPriv is the right size. * Resize the gl_framebuffer if needed. * It's expected that the dPriv->driverPrivate member points to a * gl_framebuffer object. */ void driUpdateFramebufferSize(struct gl_context *ctx, const __DRIdrawable *dPriv) { struct gl_framebuffer *fb = (struct gl_framebuffer *) dPriv->driverPrivate; if (fb && (dPriv->w != fb->Width || dPriv->h != fb->Height)) { _mesa_resize_framebuffer(ctx, fb, dPriv->w, dPriv->h); /* if the driver needs the hw lock for ResizeBuffers, the drawable might have changed again by now */ assert(fb->Width == dPriv->w); assert(fb->Height == dPriv->h); } } /* * Note: the first match is returned, which is important for formats like * __DRI_IMAGE_FORMAT_R8 which maps to both MESA_FORMAT_{R,L}_UNORM8 */ static const struct { uint32_t image_format; mesa_format mesa_format; } format_mapping[] = { { .image_format = __DRI_IMAGE_FORMAT_RGB565, .mesa_format = MESA_FORMAT_B5G6R5_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_ARGB1555, .mesa_format = MESA_FORMAT_B5G5R5A1_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_XRGB8888, .mesa_format = MESA_FORMAT_B8G8R8X8_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_ARGB2101010, .mesa_format = MESA_FORMAT_B10G10R10A2_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_XRGB2101010, .mesa_format = MESA_FORMAT_B10G10R10X2_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_ABGR2101010, .mesa_format = MESA_FORMAT_R10G10B10A2_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_XBGR2101010, .mesa_format = MESA_FORMAT_R10G10B10X2_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_ARGB8888, .mesa_format = MESA_FORMAT_B8G8R8A8_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_ABGR8888, .mesa_format = MESA_FORMAT_R8G8B8A8_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_XBGR8888, .mesa_format = MESA_FORMAT_R8G8B8X8_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_R8, .mesa_format = MESA_FORMAT_R_UNORM8, }, { .image_format = __DRI_IMAGE_FORMAT_R8, .mesa_format = MESA_FORMAT_L_UNORM8, }, { .image_format = __DRI_IMAGE_FORMAT_GR88, .mesa_format = MESA_FORMAT_R8G8_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_GR88, .mesa_format = MESA_FORMAT_L8A8_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_SABGR8, .mesa_format = MESA_FORMAT_R8G8B8A8_SRGB, }, { .image_format = __DRI_IMAGE_FORMAT_SARGB8, .mesa_format = MESA_FORMAT_B8G8R8A8_SRGB, }, { .image_format = __DRI_IMAGE_FORMAT_R16, .mesa_format = MESA_FORMAT_R_UNORM16, }, { .image_format = __DRI_IMAGE_FORMAT_R16, .mesa_format = MESA_FORMAT_L_UNORM16, }, { .image_format = __DRI_IMAGE_FORMAT_GR1616, .mesa_format = MESA_FORMAT_R16G16_UNORM, }, { .image_format = __DRI_IMAGE_FORMAT_GR1616, .mesa_format = MESA_FORMAT_L16A16_UNORM, }, }; uint32_t driGLFormatToImageFormat(mesa_format format) { for (size_t i = 0; i < ARRAY_SIZE(format_mapping); i++) if (format_mapping[i].mesa_format == format) return format_mapping[i].image_format; return __DRI_IMAGE_FORMAT_NONE; } mesa_format driImageFormatToGLFormat(uint32_t image_format) { for (size_t i = 0; i < ARRAY_SIZE(format_mapping); i++) if (format_mapping[i].image_format == image_format) return format_mapping[i].mesa_format; return MESA_FORMAT_NONE; } /** Image driver interface */ const __DRIimageDriverExtension driImageDriverExtension = { .base = { __DRI_IMAGE_DRIVER, 1 }, .createNewScreen2 = driCreateNewScreen2, .createNewDrawable = driCreateNewDrawable, .getAPIMask = driGetAPIMask, .createContextAttribs = driCreateContextAttribs, }; /* swrast copy sub buffer entrypoint. */ static void driCopySubBuffer(__DRIdrawable *pdp, int x, int y, int w, int h) { assert(pdp->driScreenPriv->swrast_loader); pdp->driScreenPriv->driver->CopySubBuffer(pdp, x, y, w, h); } /* for swrast only */ const __DRIcopySubBufferExtension driCopySubBufferExtension = { .base = { __DRI_COPY_SUB_BUFFER, 1 }, .copySubBuffer = driCopySubBuffer, }; const __DRInoErrorExtension dri2NoErrorExtension = { .base = { __DRI2_NO_ERROR, 1 }, };