/* Return a new surface from a given frame#. */
AG_Surface *
AG_AnimFrameToSurface(AG_Anim *a, int f)
{
AG_Surface *su;
AG_AnimFrame *af;
AG_MutexLock(&a->lock);
if (f < 0 || f >= a->n) {
AG_SetError("No such frame#");
AG_MutexUnlock(&a->lock);
return (NULL);
}
af = &a->f[f];
if (a->format->Amask != 0) {
su = AG_SurfaceFromPixelsRGBA(af->pixels, a->w, a->h,
a->format->BitsPerPixel,
a->format->Rmask,
a->format->Gmask,
a->format->Bmask,
a->format->Amask);
} else {
su = AG_SurfaceFromPixelsRGB(af->pixels, a->w, a->h,
a->format->BitsPerPixel,
a->format->Rmask,
a->format->Gmask,
a->format->Bmask);
}
AG_MutexUnlock(&a->lock);
return (su);
}
static void
SDLGL_CaptureOutput(AG_DriverSDLGL *sgl)
{
char path[AG_PATHNAME_MAX];
AG_DriverSw *dsw = (AG_DriverSw *)sgl;
AG_Surface *s;
Snprintf(path, sizeof(path), sgl->outPath, sgl->outFrame);
glReadPixels(0, 0, dsw->w, dsw->h, GL_RGBA, GL_UNSIGNED_BYTE,
sgl->outBuf);
if (AG_PackedPixelFlip(sgl->outBuf, dsw->h, dsw->w*4) == -1) {
goto fail_disable;
}
s = AG_SurfaceFromPixelsRGBA(sgl->outBuf,
dsw->w, dsw->h, 32,
0x000000ff, 0x0000ff00, 0x00ff0000, 0);
if (s == NULL)
goto fail;
switch (sgl->outMode) {
case AG_SDLGL_OUT_JPEG:
if (AG_SurfaceExportJPEG(s, path) == -1) {
goto fail;
}
break;
case AG_SDLGL_OUT_PNG:
if (AG_SurfaceExportPNG(s, path) == -1) {
goto fail;
}
break;
}
if (++sgl->outFrame == sgl->outLast) {
Verbose("Reached last frame; terminating\n");
AG_Terminate(0);
}
AG_SurfaceFree(s);
return;
fail:
AG_SurfaceFree(s);
fail_disable:
AG_Verbose("%s; disabling capture\n", AG_GetError());
sgl->outMode = AG_SDLGL_OUT_NONE;
}
