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/**
* 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;
}
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