diff options
| -rw-r--r-- | src/egl/main/eglsurface.c | 74 | ||||
| -rw-r--r-- | src/egl/main/eglsurface.h | 4 |
2 files changed, 78 insertions, 0 deletions
diff --git a/src/egl/main/eglsurface.c b/src/egl/main/eglsurface.c index 41d091735a4..94b86fa9827 100644 --- a/src/egl/main/eglsurface.c +++ b/src/egl/main/eglsurface.c @@ -247,3 +247,77 @@ _eglSwapInterval(_EGLDriver *drv, EGLDisplay dpy, EGLint interval) } + +/** + ** EGL Surface Utility Functions. This could be handy for device drivers. + **/ + + +/** + * Initialize the fields of the given _EGLSurface object from the other + * parameters. Do error checking too. Allocate EGLSurface handle and + * insert into hash table. + * \return EGLSurface handle or EGL_NO_SURFACE if any error + */ +EGLSurface +_eglInitPbufferSurface(_EGLSurface *surface, _EGLDriver *drv, EGLDisplay dpy, + EGLConfig config, const EGLint *attrib_list) +{ + _EGLConfig *conf; + EGLint width = 0, height = 0, largest = 0; + EGLint texFormat = 0, texTarget = 0, mipmapTex = 0; + EGLint i; + + conf = _eglLookupConfig(drv, dpy, config); + if (!conf) { + _eglError(EGL_BAD_CONFIG, "eglCreatePbufferSurface"); + return EGL_NO_SURFACE; + } + + for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) { + switch (attrib_list[i]) { + case EGL_WIDTH: + width = attrib_list[++i]; + break; + case EGL_HEIGHT: + height = attrib_list[++i]; + break; + case EGL_LARGEST_PBUFFER: + largest = attrib_list[++i]; + break; + case EGL_TEXTURE_FORMAT: + texFormat = attrib_list[++i]; + break; + case EGL_TEXTURE_TARGET: + texTarget = attrib_list[++i]; + break; + case EGL_MIPMAP_TEXTURE: + mipmapTex = attrib_list[++i]; + break; + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglCreatePbufferSurface"); + return EGL_NO_SURFACE; + } + } + + if (width <= 0 || height <= 0) { + _eglError(EGL_BAD_ATTRIBUTE, "eglCreatePbufferSurface(width or height)"); + return EGL_NO_SURFACE; + } + + surface->Config = conf; + surface->Type = EGL_PBUFFER_BIT; + surface->Width = width; + surface->Height = height; + surface->TextureFormat = texFormat; + surface->TextureTarget = texTarget; + surface->MipmapTexture = mipmapTex; + surface->MipmapLevel = 0; + surface->SwapInterval = 0; + + /* insert into hash table */ + _eglSaveSurface(surface); + assert(surface->Handle); + + return surface->Handle; +} diff --git a/src/egl/main/eglsurface.h b/src/egl/main/eglsurface.h index 2f0e07c53cc..4853edfcd1e 100644 --- a/src/egl/main/eglsurface.h +++ b/src/egl/main/eglsurface.h @@ -93,4 +93,8 @@ _eglSwapInterval(_EGLDriver *drv, EGLDisplay dpy, EGLint interval); +extern EGLSurface +_eglInitPbufferSurface(_EGLSurface *surface, _EGLDriver *drv, EGLDisplay dpy, + EGLConfig config, const EGLint *attrib_list); + #endif /* EGLSURFACE_INCLUDED */ |