diff options
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.1/src/egl/main/eglsurface.c')
| -rw-r--r-- | nx-X11/extras/Mesa_6.4.1/src/egl/main/eglsurface.c | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.1/src/egl/main/eglsurface.c b/nx-X11/extras/Mesa_6.4.1/src/egl/main/eglsurface.c new file mode 100644 index 000000000..94b86fa98 --- /dev/null +++ b/nx-X11/extras/Mesa_6.4.1/src/egl/main/eglsurface.c @@ -0,0 +1,323 @@ +/** + * Surface-related functions. + * + * See the eglcontext.c file for comments that also apply here. + */ + + +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include "eglcontext.h" +#include "eglconfig.h" +#include "eglsurface.h" +#include "eglglobals.h" +#include "eglhash.h" + + +void +_eglInitSurface(_EGLSurface *surf) +{ + /* XXX fix this up */ + memset(surf, 0, sizeof(_EGLSurface)); +} + + +void +_eglSaveSurface(_EGLSurface *surf) +{ + assert(surf); + surf->Handle = _eglHashGenKey(_eglGlobal.Contexts); + _eglHashInsert(_eglGlobal.Surfaces, surf->Handle, surf); +} + + +void +_eglRemoveSurface(_EGLSurface *surf) +{ + _eglHashRemove(_eglGlobal.Surfaces, surf->Handle); +} + + +_EGLSurface * +_eglLookupSurface(EGLSurface surf) +{ + _EGLSurface *c = (_EGLSurface *) _eglHashLookup(_eglGlobal.Surfaces, surf); + return c; +} + + +_EGLSurface * +_eglGetCurrentSurface(EGLint readdraw) +{ + _EGLContext *ctx = _eglGetCurrentContext(); + if (ctx) { + switch (readdraw) { + case EGL_DRAW: + return ctx->DrawSurface; + case EGL_READ: + return ctx->ReadSurface; + default: + return NULL; + } + } + return NULL; +} + + +EGLBoolean +_eglSwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw) +{ + /* Basically just do error checking */ + _EGLContext *context = _eglGetCurrentContext(); + _EGLSurface *surface = _eglLookupSurface(draw); + if (context && context->DrawSurface != surface) { + _eglError(EGL_BAD_SURFACE, "eglSwapBuffers"); + return EGL_FALSE; + } + if (surface == NULL) { + _eglError(EGL_BAD_SURFACE, "eglSwapBuffers"); + return EGL_FALSE; + } + return EGL_TRUE; +} + + +EGLBoolean +_eglCopyBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, NativePixmapType target) +{ + /* XXX unfinished */ + return EGL_FALSE; +} + + +EGLBoolean +_eglQuerySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf, EGLint attribute, EGLint *value) +{ + _EGLSurface *surface = _eglLookupSurface(surf); + if (surface == NULL) { + _eglError(EGL_BAD_SURFACE, "eglQuerySurface"); + return EGL_FALSE; + } + switch (attribute) { + case EGL_WIDTH: + *value = surface->Width; + return EGL_TRUE; + case EGL_HEIGHT: + *value = surface->Height; + return EGL_TRUE; + case EGL_CONFIG_ID: + *value = GET_CONFIG_ATTRIB(surface->Config, EGL_CONFIG_ID); + return EGL_TRUE; + case EGL_TEXTURE_FORMAT: + /* texture attributes: only for pbuffers, no error otherwise */ + if (surface->Type == EGL_PBUFFER_BIT) + *value = surface->TextureFormat; + return EGL_TRUE; + case EGL_TEXTURE_TARGET: + if (surface->Type == EGL_PBUFFER_BIT) + *value = surface->TextureTarget; + return EGL_TRUE; + case EGL_MIPMAP_TEXTURE: + if (surface->Type == EGL_PBUFFER_BIT) + *value = surface->MipmapTexture; + return EGL_TRUE; + case EGL_MIPMAP_LEVEL: + if (surface->Type == EGL_PBUFFER_BIT) + *value = surface->MipmapLevel; + return EGL_TRUE; + case EGL_SURFACE_TYPE: + *value = surface->Type; + return EGL_TRUE; + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface"); + return EGL_FALSE; + } +} + + +/** + * Default fallback routine - drivers should usually override this. + */ +EGLSurface +_eglCreateWindowSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list) +{ + /* nothing - just a placeholder */ + return EGL_NO_SURFACE; +} + + +/** + * Default fallback routine - drivers should usually override this. + */ +EGLSurface +_eglCreatePixmapSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list) +{ + /* nothing - just a placeholder */ + return EGL_NO_SURFACE; +} + + +/** + * Default fallback routine - drivers should usually override this. + */ +EGLSurface +_eglCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list) +{ + /* nothing - just a placeholder */ + return EGL_NO_SURFACE; +} + + +/** + * Default fallback routine - drivers should usually override this. + */ +EGLBoolean +_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface) +{ + _EGLSurface *surf = _eglLookupSurface(surface); + if (surf) { + _eglHashRemove(_eglGlobal.Surfaces, surface); + if (surf->IsBound) { + surf->DeletePending = EGL_TRUE; + } + else { + free(surf); + } + return EGL_TRUE; + } + else { + _eglError(EGL_BAD_SURFACE, "eglDestroySurface"); + return EGL_FALSE; + } +} + + +/** + * Default fallback routine - drivers might override this. + */ +EGLBoolean +_eglSurfaceAttrib(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf, EGLint attribute, EGLint value) +{ + _EGLSurface *surface = _eglLookupSurface(surf); + + if (surface == NULL) { + _eglError(EGL_BAD_SURFACE, "eglSurfaceAttrib"); + return EGL_FALSE; + } + + switch (attribute) { + case EGL_MIPMAP_LEVEL: + surface->MipmapLevel = value; + break; + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglSurfaceAttrib"); + return EGL_FALSE; + } + return EGL_TRUE; +} + + +EGLBoolean +_eglBindTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint buffer) +{ + /* XXX unfinished */ + return EGL_FALSE; +} + + +EGLBoolean +_eglReleaseTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint buffer) +{ + /* XXX unfinished */ + return EGL_FALSE; +} + + +EGLBoolean +_eglSwapInterval(_EGLDriver *drv, EGLDisplay dpy, EGLint interval) +{ + _EGLSurface *surf = _eglGetCurrentSurface(EGL_DRAW); + if (surf == NULL) { + _eglError(EGL_BAD_SURFACE, "eglSwapInterval"); + return EGL_FALSE; + } + surf->SwapInterval = interval; + return EGL_TRUE; +} + + + +/** + ** 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; +} |