| 0,0 → 1,161 |
|---|
| /************************************************************************** |
| * |
| * Copyright 2008 VMware, Inc. |
| * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com> |
| * Copyright 2010-2011 LunarG, 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 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| * |
| **************************************************************************/ |
| |
| |
| #ifndef EGLCONTEXT_INCLUDED |
| #define EGLCONTEXT_INCLUDED |
| |
| #include "c99_compat.h" |
| |
| #include "egltypedefs.h" |
| #include "egldisplay.h" |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * "Base" class for device driver contexts. |
| */ |
| struct _egl_context |
| { |
| /* A context is a display resource */ |
| _EGLResource Resource; |
| |
| /* The bound status of the context */ |
| _EGLThreadInfo *Binding; |
| _EGLSurface *DrawSurface; |
| _EGLSurface *ReadSurface; |
| |
| _EGLConfig *Config; |
| |
| EGLint ClientAPI; /**< EGL_OPENGL_ES_API, EGL_OPENGL_API, EGL_OPENVG_API */ |
| EGLint ClientMajorVersion; |
| EGLint ClientMinorVersion; |
| EGLint Flags; |
| EGLint Profile; |
| EGLint ResetNotificationStrategy; |
| |
| /* The real render buffer when a window surface is bound */ |
| EGLint WindowRenderBuffer; |
| }; |
| |
| |
| extern EGLBoolean |
| _eglInitContext(_EGLContext *ctx, _EGLDisplay *dpy, |
| _EGLConfig *config, const EGLint *attrib_list); |
| |
| |
| extern EGLBoolean |
| _eglQueryContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLint attribute, EGLint *value); |
| |
| |
| extern EGLBoolean |
| _eglBindContext(_EGLContext *ctx, _EGLSurface *draw, _EGLSurface *read, |
| _EGLContext **old_ctx, |
| _EGLSurface **old_draw, _EGLSurface **old_read); |
| |
| |
| /** |
| * Increment reference count for the context. |
| */ |
| static inline _EGLContext * |
| _eglGetContext(_EGLContext *ctx) |
| { |
| if (ctx) |
| _eglGetResource(&ctx->Resource); |
| return ctx; |
| } |
| |
| |
| /** |
| * Decrement reference count for the context. |
| */ |
| static inline EGLBoolean |
| _eglPutContext(_EGLContext *ctx) |
| { |
| return (ctx) ? _eglPutResource(&ctx->Resource) : EGL_FALSE; |
| } |
| |
| |
| /** |
| * Link a context to its display and return the handle of the link. |
| * The handle can be passed to client directly. |
| */ |
| static inline EGLContext |
| _eglLinkContext(_EGLContext *ctx) |
| { |
| _eglLinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT); |
| return (EGLContext) ctx; |
| } |
| |
| |
| /** |
| * Unlink a linked context from its display. |
| * Accessing an unlinked context should generate EGL_BAD_CONTEXT error. |
| */ |
| static inline void |
| _eglUnlinkContext(_EGLContext *ctx) |
| { |
| _eglUnlinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT); |
| } |
| |
| |
| /** |
| * Lookup a handle to find the linked context. |
| * Return NULL if the handle has no corresponding linked context. |
| */ |
| static inline _EGLContext * |
| _eglLookupContext(EGLContext context, _EGLDisplay *dpy) |
| { |
| _EGLContext *ctx = (_EGLContext *) context; |
| if (!dpy || !_eglCheckResource((void *) ctx, _EGL_RESOURCE_CONTEXT, dpy)) |
| ctx = NULL; |
| return ctx; |
| } |
| |
| |
| /** |
| * Return the handle of a linked context, or EGL_NO_CONTEXT. |
| */ |
| static inline EGLContext |
| _eglGetContextHandle(_EGLContext *ctx) |
| { |
| _EGLResource *res = (_EGLResource *) ctx; |
| return (res && _eglIsResourceLinked(res)) ? |
| (EGLContext) ctx : EGL_NO_CONTEXT; |
| } |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* EGLCONTEXT_INCLUDED */ |