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	backend/drm: refactor wlr_drm_connector_set_cursor
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					 1 changed files with 43 additions and 51 deletions
				
			
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			@ -544,10 +544,10 @@ static bool wlr_drm_connector_set_cursor(struct wlr_output *output,
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	if (!crtc) {
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		return false;
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	}
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	struct wlr_drm_plane *plane = crtc->cursor;
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	// We don't have a real cursor plane, so we make a fake one
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	struct wlr_drm_plane *plane = crtc->cursor;
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	if (!plane) {
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		// We don't have a real cursor plane, so we make a fake one
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		plane = calloc(1, sizeof(*plane));
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		if (!plane) {
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			wlr_log_errno(L_ERROR, "Allocation failed");
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			@ -556,16 +556,6 @@ static bool wlr_drm_connector_set_cursor(struct wlr_output *output,
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		crtc->cursor = plane;
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	}
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	if (!buf && update_pixels) {
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		// Hide the cursor
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		plane->cursor_enabled = false;
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		if (!drm->session->active) {
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			return true;
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		}
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		return drm->iface->crtc_set_cursor(drm, crtc, NULL);
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	}
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	plane->cursor_enabled = true;
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	if (!plane->surf.gbm) {
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		int ret;
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		uint64_t w, h;
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			@ -607,10 +597,7 @@ static bool wlr_drm_connector_set_cursor(struct wlr_output *output,
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		}
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	}
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	struct wlr_box hotspot = {
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		.x = hotspot_x,
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		.y = hotspot_y,
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	};
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	struct wlr_box hotspot = { .x = hotspot_x, .y = hotspot_y };
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	enum wl_output_transform transform =
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		wlr_output_transform_invert(output->transform);
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	wlr_box_transform(&hotspot, transform,
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			@ -620,49 +607,54 @@ static bool wlr_drm_connector_set_cursor(struct wlr_output *output,
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	if (!update_pixels) {
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		// Only update the cursor hotspot
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		wlr_output_update_needs_swap(output);
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		return true;
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	}
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	struct gbm_bo *bo = plane->cursor_bo;
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	uint32_t bo_width = gbm_bo_get_width(bo);
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	uint32_t bo_height = gbm_bo_get_height(bo);
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	uint32_t bo_stride;
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	void *bo_data;
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	plane->cursor_enabled = buf != NULL;
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	if (!gbm_bo_map(bo, 0, 0, bo_width, bo_height,
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			GBM_BO_TRANSFER_WRITE, &bo_stride, &bo_data)) {
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		wlr_log_errno(L_ERROR, "Unable to map buffer");
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		return false;
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	if (buf != NULL) {
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		uint32_t bo_width = gbm_bo_get_width(plane->cursor_bo);
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		uint32_t bo_height = gbm_bo_get_height(plane->cursor_bo);
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		uint32_t bo_stride;
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		void *bo_data;
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		if (!gbm_bo_map(plane->cursor_bo, 0, 0, bo_width, bo_height,
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				GBM_BO_TRANSFER_WRITE, &bo_stride, &bo_data)) {
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			wlr_log_errno(L_ERROR, "Unable to map buffer");
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			return false;
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		}
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		wlr_drm_surface_make_current(&plane->surf, NULL);
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		wlr_texture_upload_pixels(plane->wlr_tex, WL_SHM_FORMAT_ARGB8888,
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			stride, width, height, buf);
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		glViewport(0, 0, plane->surf.width, plane->surf.height);
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		glClearColor(0.0, 0.0, 0.0, 0.0);
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		glClear(GL_COLOR_BUFFER_BIT);
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		float matrix[16];
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		wlr_texture_get_matrix(plane->wlr_tex, &matrix, &plane->matrix, 0, 0);
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		wlr_render_with_matrix(plane->surf.renderer->wlr_rend, plane->wlr_tex,
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			&matrix, 1.0f);
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		glFinish();
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		glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, bo_stride);
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		glReadPixels(0, 0, plane->surf.width, plane->surf.height, GL_BGRA_EXT,
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			GL_UNSIGNED_BYTE, bo_data);
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		glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0);
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		wlr_drm_surface_swap_buffers(&plane->surf, NULL);
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		gbm_bo_unmap(plane->cursor_bo, bo_data);
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	}
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	wlr_drm_surface_make_current(&plane->surf, NULL);
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	wlr_texture_upload_pixels(plane->wlr_tex, WL_SHM_FORMAT_ARGB8888,
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		stride, width, height, buf);
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	glViewport(0, 0, plane->surf.width, plane->surf.height);
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	glClearColor(0.0, 0.0, 0.0, 0.0);
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	glClear(GL_COLOR_BUFFER_BIT);
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	float matrix[16];
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	wlr_texture_get_matrix(plane->wlr_tex, &matrix, &plane->matrix, 0, 0);
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	wlr_render_with_matrix(plane->surf.renderer->wlr_rend, plane->wlr_tex,
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		&matrix, 1.0f);
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	glFinish();
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	glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, bo_stride);
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	glReadPixels(0, 0, plane->surf.width, plane->surf.height, GL_BGRA_EXT,
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		GL_UNSIGNED_BYTE, bo_data);
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	glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0);
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	wlr_drm_surface_swap_buffers(&plane->surf, NULL);
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	gbm_bo_unmap(bo, bo_data);
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	if (!drm->session->active) {
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		return true;
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		return true; // will be committed when session is resumed
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	}
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	struct gbm_bo *bo = plane->cursor_enabled ? plane->cursor_bo : NULL;
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	bool ok = drm->iface->crtc_set_cursor(drm, crtc, bo);
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	if (ok) {
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		wlr_output_update_needs_swap(output);
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			@ -697,7 +689,7 @@ static bool wlr_drm_connector_move_cursor(struct wlr_output *output,
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	conn->cursor_y = box.y;
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	if (!drm->session->active) {
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		return true;
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		return true; // will be committed when session is resumed
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	}
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	bool ok = drm->iface->crtc_move_cursor(drm, conn->crtc, box.x, box.y);
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