void KMSDRM_DestroyWindow(_THIS, SDL_Window * window) { SDL_WindowData *data = (SDL_WindowData *) window->driverdata; if(data) { /* Wait for any pending page flips and unlock buffer */ KMSDRM_WaitPageFlip(_this, data, -1); if (data->crtc_bo != NULL) { KMSDRM_gbm_surface_release_buffer(data->gs, data->crtc_bo); data->crtc_bo = NULL; } if (data->next_bo != NULL) { KMSDRM_gbm_surface_release_buffer(data->gs, data->next_bo); data->next_bo = NULL; } if (data->current_bo != NULL) { KMSDRM_gbm_surface_release_buffer(data->gs, data->current_bo); data->current_bo = NULL; } #if SDL_VIDEO_OPENGL_EGL SDL_EGL_MakeCurrent(_this, EGL_NO_SURFACE, EGL_NO_CONTEXT); if (data->egl_surface != EGL_NO_SURFACE) { SDL_EGL_DestroySurface(_this, data->egl_surface); } #endif /* SDL_VIDEO_OPENGL_EGL */ if (data->gs != NULL) { KMSDRM_gbm_surface_destroy(data->gs); data->gs = NULL; } SDL_free(data); window->driverdata = NULL; } }
int KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window) { SDL_WindowData *wdata = ((SDL_WindowData *) window->driverdata); SDL_DisplayData *displaydata = (SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata; SDL_VideoData *vdata = ((SDL_VideoData *)_this->driverdata); KMSDRM_FBInfo *fb_info; int ret; /* Do we still need to wait for a flip? */ int timeout = 0; if (_this->egl_data->egl_swapinterval == 1) { timeout = -1; } if (!KMSDRM_WaitPageFlip(_this, wdata, timeout)) { return 0; } /* Release previously displayed buffer (which is now the backbuffer) and lock a new one */ if (wdata->next_bo != NULL) { KMSDRM_gbm_surface_release_buffer(wdata->gs, wdata->current_bo); /* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Released GBM surface %p", (void *)wdata->next_bo); */ wdata->current_bo = wdata->next_bo; wdata->next_bo = NULL; } if (!(_this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, wdata->egl_surface))) { SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "eglSwapBuffers failed."); return 0; } if (wdata->current_bo == NULL) { wdata->current_bo = KMSDRM_gbm_surface_lock_front_buffer(wdata->gs); if (wdata->current_bo == NULL) { return 0; } } wdata->next_bo = KMSDRM_gbm_surface_lock_front_buffer(wdata->gs); if (wdata->next_bo == NULL) { SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not lock GBM surface front buffer"); return 0; /* } else { SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Locked GBM surface %p", (void *)wdata->next_bo); */ } fb_info = KMSDRM_FBFromBO(_this, wdata->next_bo); if (fb_info == NULL) { return 0; } if (_this->egl_data->egl_swapinterval == 0) { /* Swap buffers instantly, possible tearing */ /* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "drmModeSetCrtc(%d, %u, %u, 0, 0, &%u, 1, &%ux%u@%u)", vdata->drm_fd, displaydata->crtc_id, fb_info->fb_id, vdata->saved_conn_id, displaydata->cur_mode.hdisplay, displaydata->cur_mode.vdisplay, displaydata->cur_mode.vrefresh); */ ret = KMSDRM_drmModeSetCrtc(vdata->drm_fd, displaydata->crtc_id, fb_info->fb_id, 0, 0, &vdata->saved_conn_id, 1, &displaydata->cur_mode); if(ret != 0) { SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not pageflip with drmModeSetCrtc: %d", ret); } } else { /* Queue page flip at vsync */ /* Have we already setup the CRTC to one of the GBM buffers? Do so if we have not, or FlipPage won't work in some cases. */ if (!wdata->crtc_ready) { if(!KMSDRM_GLES_SetupCrtc(_this, window)) { SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not set up CRTC for doing vsync-ed pageflips"); return 0; } } /* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "drmModePageFlip(%d, %u, %u, DRM_MODE_PAGE_FLIP_EVENT, &wdata->waiting_for_flip)", vdata->drm_fd, displaydata->crtc_id, fb_info->fb_id); */ ret = KMSDRM_drmModePageFlip(vdata->drm_fd, displaydata->crtc_id, fb_info->fb_id, DRM_MODE_PAGE_FLIP_EVENT, &wdata->waiting_for_flip); if (ret == 0) { wdata->waiting_for_flip = SDL_TRUE; } else { SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not queue pageflip: %d", ret); } } return 0; }