static void draw_view(struct weston_view *ev, struct weston_output *output, pixman_region32_t *damage) /* in global coordinates */ { struct pixman_surface_state *ps = get_surface_state(ev->surface); /* repaint bounding region in global coordinates: */ pixman_region32_t repaint; /* non-opaque region in surface coordinates: */ pixman_region32_t surface_blend; /* No buffer attached */ if (!ps->image) return; pixman_region32_init(&repaint); pixman_region32_intersect(&repaint, &ev->transform.boundingbox, damage); pixman_region32_subtract(&repaint, &repaint, &ev->clip); if (!pixman_region32_not_empty(&repaint)) goto out; if (output->zoom.active) { weston_log("pixman renderer does not support zoom\n"); goto out; } /* TODO: Implement repaint_region_complex() using pixman_composite_trapezoids() */ if (ev->transform.enabled && ev->transform.matrix.type != WESTON_MATRIX_TRANSFORM_TRANSLATE) { repaint_region(ev, output, &repaint, NULL, PIXMAN_OP_OVER); } else { /* blended region is whole surface minus opaque region: */ pixman_region32_init_rect(&surface_blend, 0, 0, ev->surface->width, ev->surface->height); pixman_region32_subtract(&surface_blend, &surface_blend, &ev->surface->opaque); if (pixman_region32_not_empty(&ev->surface->opaque)) { repaint_region(ev, output, &repaint, &ev->surface->opaque, PIXMAN_OP_SRC); } if (pixman_region32_not_empty(&surface_blend)) { repaint_region(ev, output, &repaint, &surface_blend, PIXMAN_OP_OVER); } pixman_region32_fini(&surface_blend); } out: pixman_region32_fini(&repaint); }
static void draw_view_source_clipped(struct weston_view *view, struct weston_output *output, pixman_region32_t *repaint_global) { struct weston_surface *surface = view->surface; pixman_region32_t surf_region; pixman_region32_t buffer_region; pixman_region32_t repaint_output; /* Do not bother separating the opaque region from non-opaque. * Source clipping requires PIXMAN_OP_OVER in all cases, so painting * opaque separately has no benefit. */ pixman_region32_init_rect(&surf_region, 0, 0, surface->width, surface->height); if (view->geometry.scissor_enabled) pixman_region32_intersect(&surf_region, &surf_region, &view->geometry.scissor); pixman_region32_init(&buffer_region); weston_surface_to_buffer_region(surface, &surf_region, &buffer_region); pixman_region32_init(&repaint_output); pixman_region32_copy(&repaint_output, repaint_global); region_global_to_output(output, &repaint_output); repaint_region(view, output, &repaint_output, &buffer_region, PIXMAN_OP_OVER); pixman_region32_fini(&repaint_output); pixman_region32_fini(&buffer_region); pixman_region32_fini(&surf_region); }
static void draw_view_translated(struct weston_view *view, struct weston_output *output, pixman_region32_t *repaint_global) { struct weston_surface *surface = view->surface; /* non-opaque region in surface coordinates: */ pixman_region32_t surface_blend; /* region to be painted in output coordinates: */ pixman_region32_t repaint_output; pixman_region32_init(&repaint_output); /* Blended region is whole surface minus opaque region, * unless surface alpha forces us to blend all. */ pixman_region32_init_rect(&surface_blend, 0, 0, surface->width, surface->height); if (!(view->alpha < 1.0)) { pixman_region32_subtract(&surface_blend, &surface_blend, &surface->opaque); if (pixman_region32_not_empty(&surface->opaque)) { region_intersect_only_translation(&repaint_output, repaint_global, &surface->opaque, view); region_global_to_output(output, &repaint_output); repaint_region(view, output, &repaint_output, NULL, PIXMAN_OP_SRC); } } if (pixman_region32_not_empty(&surface_blend)) { region_intersect_only_translation(&repaint_output, repaint_global, &surface_blend, view); region_global_to_output(output, &repaint_output); repaint_region(view, output, &repaint_output, NULL, PIXMAN_OP_OVER); } pixman_region32_fini(&surface_blend); pixman_region32_fini(&repaint_output); }