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	backend/drm: add support for wlr_swapchain multi-GPU
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					 2 changed files with 15 additions and 16 deletions
				
			
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					@ -292,11 +292,12 @@ void drm_fb_clear(struct wlr_drm_fb *fb) {
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	fb->bo = NULL;
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						fb->bo = NULL;
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	if (fb->mgpu_bo) {
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						if (fb->mgpu_bo) {
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		// TODO
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							assert(fb->mgpu_surf);
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		/*assert(fb->mgpu_surf);
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							gbm_bo_destroy(fb->mgpu_bo);
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		gbm_surface_release_buffer(fb->mgpu_surf->gbm, fb->mgpu_bo);
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							wlr_buffer_unlock(fb->mgpu_wlr_buf);
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		fb->mgpu_bo = NULL;
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							fb->mgpu_bo = NULL;
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		fb->mgpu_surf = NULL;*/
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							fb->mgpu_wlr_buf = NULL;
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							fb->mgpu_surf = NULL;
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	}
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						}
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}
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					}
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					@ -430,18 +431,15 @@ struct gbm_bo *drm_fb_acquire(struct wlr_drm_fb *fb, struct wlr_drm_backend *drm
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	wlr_render_texture_with_matrix(renderer, tex, mat, 1.0f);
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						wlr_render_texture_with_matrix(renderer, tex, mat, 1.0f);
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	wlr_renderer_end(renderer);
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						wlr_renderer_end(renderer);
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	// TODO
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						struct wlr_drm_fb mgpu_fb = {
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	/*if (!wlr_egl_swap_buffers(&mgpu->renderer->egl, mgpu->egl, NULL)) {
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							.bo = fb->mgpu_bo,
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		wlr_log(WLR_ERROR, "Failed to swap buffers");
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							.wlr_buf = fb->mgpu_wlr_buf,
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		return NULL;
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						};
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						if (!drm_fb_lock_surface(&mgpu_fb, mgpu)) {
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							return false;
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	}
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						}
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						fb->mgpu_bo = mgpu_fb.bo;
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	fb->mgpu_bo = gbm_surface_lock_front_buffer(mgpu->gbm);
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						fb->mgpu_wlr_buf = mgpu_fb.wlr_buf;
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	if (!fb->mgpu_bo) {
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						fb->mgpu_surf = mgpu;
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		wlr_log(WLR_ERROR, "Failed to lock front buffer");
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		return NULL;
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	}
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	fb->mgpu_surf = mgpu;*/
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	return fb->mgpu_bo;
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						return fb->mgpu_bo;
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}
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					}
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					@ -39,6 +39,7 @@ struct wlr_drm_fb {
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	struct wlr_drm_surface *mgpu_surf;
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						struct wlr_drm_surface *mgpu_surf;
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	struct gbm_bo *mgpu_bo;
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						struct gbm_bo *mgpu_bo;
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						struct wlr_buffer *mgpu_wlr_buf;
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};
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					};
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bool init_drm_renderer(struct wlr_drm_backend *drm,
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					bool init_drm_renderer(struct wlr_drm_backend *drm,
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