static int pixman_renderer_surface_copy_content(struct weston_surface *surface, void *target, size_t size, int src_x, int src_y, int width, int height) { const pixman_format_code_t format = PIXMAN_a8b8g8r8; const size_t bytespp = 4; /* PIXMAN_a8b8g8r8 */ struct pixman_surface_state *ps = get_surface_state(surface); pixman_image_t *out_buf; if (!ps->image) return -1; out_buf = pixman_image_create_bits(format, width, height, target, width * bytespp); pixman_image_set_transform(ps->image, NULL); pixman_image_composite32(PIXMAN_OP_SRC, ps->image, /* src */ NULL, /* mask */ out_buf, /* dest */ src_x, src_y, /* src_x, src_y */ 0, 0, /* mask_x, mask_y */ 0, 0, /* dest_x, dest_y */ width, height); pixman_image_unref(out_buf); return 0; }
static void pixman_renderer_attach(struct weston_surface *es, struct weston_buffer *buffer) { struct pixman_surface_state *ps = get_surface_state(es); struct wl_shm_buffer *shm_buffer; pixman_format_code_t pixman_format; weston_buffer_reference(&ps->buffer_ref, buffer); if (ps->image) { pixman_image_unref(ps->image); ps->image = NULL; } if (!buffer) return; shm_buffer = wl_shm_buffer_get(buffer->resource); if (! shm_buffer) { weston_log("Pixman renderer supports only SHM buffers\n"); weston_buffer_reference(&ps->buffer_ref, NULL); return; } switch (wl_shm_buffer_get_format(shm_buffer)) { case WL_SHM_FORMAT_XRGB8888: pixman_format = PIXMAN_x8r8g8b8; break; case WL_SHM_FORMAT_ARGB8888: pixman_format = PIXMAN_a8r8g8b8; break; case WL_SHM_FORMAT_RGB565: pixman_format = PIXMAN_r5g6b5; break; default: weston_log("Unsupported SHM buffer format\n"); weston_buffer_reference(&ps->buffer_ref, NULL); return; break; } buffer->shm_buffer = shm_buffer; buffer->width = wl_shm_buffer_get_width(shm_buffer); buffer->height = wl_shm_buffer_get_height(shm_buffer); ps->image = pixman_image_create_bits(pixman_format, buffer->width, buffer->height, wl_shm_buffer_get_data(shm_buffer), wl_shm_buffer_get_stride(shm_buffer)); }
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 pixman_renderer_surface_get_content_size(struct weston_surface *surface, int *width, int *height) { struct pixman_surface_state *ps = get_surface_state(surface); if (ps->image) { *width = pixman_image_get_width(ps->image); *height = pixman_image_get_height(ps->image); } else { *width = 0; *height = 0; } }
static void draw_view(struct weston_view *ev, struct weston_output *output, pixman_region32_t *damage) /* in global coordinates */ { static int zoom_logged = 0; struct pixman_surface_state *ps = get_surface_state(ev->surface); /* repaint bounding region in global coordinates: */ pixman_region32_t repaint; /* 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 && !zoom_logged) { weston_log("pixman renderer does not support zoom\n"); zoom_logged = 1; } if (view_transformation_is_translation(ev)) { /* The simple case: The surface regions opaque, non-opaque, * etc. are convertible to global coordinate space. * There is no need to use a source clip region. * It is possible to paint opaque region as PIXMAN_OP_SRC. * Also the boundingbox is accurate rather than an * approximation. */ draw_view_translated(ev, output, &repaint); } else { /* The complex case: the view transformation does not allow * converting opaque etc. regions into global coordinate space. * Therefore we need source clipping to avoid sampling from * unwanted source image areas, unless the source image is * to be used whole. Source clipping does not work with * PIXMAN_OP_SRC. */ draw_view_source_clipped(ev, output, &repaint); } out: pixman_region32_fini(&repaint); }
static void pixman_renderer_surface_set_color(struct weston_surface *es, float red, float green, float blue, float alpha) { struct pixman_surface_state *ps = get_surface_state(es); pixman_color_t color; color.red = red * 0xffff; color.green = green * 0xffff; color.blue = blue * 0xffff; color.alpha = alpha * 0xffff; if (ps->image) { pixman_image_unref(ps->image); ps->image = NULL; } ps->image = pixman_image_create_solid_fill(&color); }
static void repaint_region(struct weston_view *ev, struct weston_output *output, pixman_region32_t *region, pixman_region32_t *surf_region, pixman_op_t pixman_op) { struct pixman_renderer *pr = (struct pixman_renderer *) output->compositor->renderer; struct pixman_surface_state *ps = get_surface_state(ev->surface); struct pixman_output_state *po = get_output_state(output); pixman_region32_t final_region; float view_x, view_y; pixman_transform_t transform; pixman_fixed_t fw, fh; /* The final region to be painted is the intersection of * 'region' and 'surf_region'. However, 'region' is in the global * coordinates, and 'surf_region' is in the surface-local * coordinates */ pixman_region32_init(&final_region); if (surf_region) { pixman_region32_copy(&final_region, surf_region); /* Convert from surface to global coordinates */ if (!ev->transform.enabled) { pixman_region32_translate(&final_region, ev->geometry.x, ev->geometry.y); } else { weston_view_to_global_float(ev, 0, 0, &view_x, &view_y); pixman_region32_translate(&final_region, (int)view_x, (int)view_y); } /* We need to paint the intersection */ pixman_region32_intersect(&final_region, &final_region, region); } else { /* If there is no surface region, just use the global region */ pixman_region32_copy(&final_region, region); } /* Convert from global to output coord */ region_global_to_output(output, &final_region); /* And clip to it */ pixman_image_set_clip_region32 (po->shadow_image, &final_region); /* Set up the source transformation based on the surface position, the output position/transform/scale and the client specified buffer transform/scale */ pixman_transform_init_identity(&transform); pixman_transform_scale(&transform, NULL, pixman_double_to_fixed ((double)1.0/output->current_scale), pixman_double_to_fixed ((double)1.0/output->current_scale)); fw = pixman_int_to_fixed(output->width); fh = pixman_int_to_fixed(output->height); switch (output->transform) { default: case WL_OUTPUT_TRANSFORM_NORMAL: case WL_OUTPUT_TRANSFORM_FLIPPED: break; case WL_OUTPUT_TRANSFORM_90: case WL_OUTPUT_TRANSFORM_FLIPPED_90: pixman_transform_rotate(&transform, NULL, 0, -pixman_fixed_1); pixman_transform_translate(&transform, NULL, 0, fh); break; case WL_OUTPUT_TRANSFORM_180: case WL_OUTPUT_TRANSFORM_FLIPPED_180: pixman_transform_rotate(&transform, NULL, -pixman_fixed_1, 0); pixman_transform_translate(&transform, NULL, fw, fh); break; case WL_OUTPUT_TRANSFORM_270: case WL_OUTPUT_TRANSFORM_FLIPPED_270: pixman_transform_rotate(&transform, NULL, 0, pixman_fixed_1); pixman_transform_translate(&transform, NULL, fw, 0); break; } switch (output->transform) { case WL_OUTPUT_TRANSFORM_FLIPPED: case WL_OUTPUT_TRANSFORM_FLIPPED_90: case WL_OUTPUT_TRANSFORM_FLIPPED_180: case WL_OUTPUT_TRANSFORM_FLIPPED_270: pixman_transform_scale(&transform, NULL, pixman_int_to_fixed (-1), pixman_int_to_fixed (1)); pixman_transform_translate(&transform, NULL, fw, 0); break; } pixman_transform_translate(&transform, NULL, pixman_double_to_fixed (output->x), pixman_double_to_fixed (output->y)); if (ev->transform.enabled) { /* Pixman supports only 2D transform matrix, but Weston uses 3D, * so we're omitting Z coordinate here */ pixman_transform_t surface_transform = {{ { D2F(ev->transform.matrix.d[0]), D2F(ev->transform.matrix.d[4]), D2F(ev->transform.matrix.d[12]), }, { D2F(ev->transform.matrix.d[1]), D2F(ev->transform.matrix.d[5]), D2F(ev->transform.matrix.d[13]), }, { D2F(ev->transform.matrix.d[3]), D2F(ev->transform.matrix.d[7]), D2F(ev->transform.matrix.d[15]), } }}; pixman_transform_invert(&surface_transform, &surface_transform); pixman_transform_multiply (&transform, &surface_transform, &transform); } else { pixman_transform_translate(&transform, NULL, pixman_double_to_fixed ((double)-ev->geometry.x), pixman_double_to_fixed ((double)-ev->geometry.y)); } if (ev->surface->buffer_viewport.scaler_set) { double scaler_x, scaler_y, scaler_width, scaler_height; double ratio_x, ratio_y; scaler_x = wl_fixed_to_double(ev->surface->buffer_viewport.src_x); scaler_y = wl_fixed_to_double(ev->surface->buffer_viewport.src_y); scaler_width = wl_fixed_to_double(ev->surface->buffer_viewport.src_width); scaler_height = wl_fixed_to_double(ev->surface->buffer_viewport.src_height); ratio_x = scaler_width / ev->surface->buffer_viewport.dst_width; ratio_y = scaler_height / ev->surface->buffer_viewport.dst_height; pixman_transform_scale(&transform, NULL, pixman_double_to_fixed(ratio_x), pixman_double_to_fixed(ratio_y)); pixman_transform_translate(&transform, NULL, pixman_double_to_fixed(scaler_x), pixman_double_to_fixed(scaler_y)); } pixman_transform_scale(&transform, NULL, pixman_double_to_fixed(ev->surface->buffer_viewport.scale), pixman_double_to_fixed(ev->surface->buffer_viewport.scale)); fw = pixman_int_to_fixed(pixman_image_get_width(ps->image)); fh = pixman_int_to_fixed(pixman_image_get_height(ps->image)); switch (ev->surface->buffer_viewport.transform) { case WL_OUTPUT_TRANSFORM_FLIPPED: case WL_OUTPUT_TRANSFORM_FLIPPED_90: case WL_OUTPUT_TRANSFORM_FLIPPED_180: case WL_OUTPUT_TRANSFORM_FLIPPED_270: pixman_transform_scale(&transform, NULL, pixman_int_to_fixed (-1), pixman_int_to_fixed (1)); pixman_transform_translate(&transform, NULL, fw, 0); break; } switch (ev->surface->buffer_viewport.transform) { default: case WL_OUTPUT_TRANSFORM_NORMAL: case WL_OUTPUT_TRANSFORM_FLIPPED: break; case WL_OUTPUT_TRANSFORM_90: case WL_OUTPUT_TRANSFORM_FLIPPED_90: pixman_transform_rotate(&transform, NULL, 0, pixman_fixed_1); pixman_transform_translate(&transform, NULL, fh, 0); break; case WL_OUTPUT_TRANSFORM_180: case WL_OUTPUT_TRANSFORM_FLIPPED_180: pixman_transform_rotate(&transform, NULL, -pixman_fixed_1, 0); pixman_transform_translate(&transform, NULL, fw, fh); break; case WL_OUTPUT_TRANSFORM_270: case WL_OUTPUT_TRANSFORM_FLIPPED_270: pixman_transform_rotate(&transform, NULL, 0, -pixman_fixed_1); pixman_transform_translate(&transform, NULL, 0, fw); break; } pixman_image_set_transform(ps->image, &transform); if (ev->transform.enabled || output->current_scale != ev->surface->buffer_viewport.scale) pixman_image_set_filter(ps->image, PIXMAN_FILTER_BILINEAR, NULL, 0); else pixman_image_set_filter(ps->image, PIXMAN_FILTER_NEAREST, NULL, 0); if (ps->buffer_ref.buffer) wl_shm_buffer_begin_access(ps->buffer_ref.buffer->shm_buffer); pixman_image_composite32(pixman_op, ps->image, /* src */ NULL /* mask */, po->shadow_image, /* dest */ 0, 0, /* src_x, src_y */ 0, 0, /* mask_x, mask_y */ 0, 0, /* dest_x, dest_y */ pixman_image_get_width (po->shadow_image), /* width */ pixman_image_get_height (po->shadow_image) /* height */); if (ps->buffer_ref.buffer) wl_shm_buffer_end_access(ps->buffer_ref.buffer->shm_buffer); if (pr->repaint_debug) pixman_image_composite32(PIXMAN_OP_OVER, pr->debug_color, /* src */ NULL /* mask */, po->shadow_image, /* dest */ 0, 0, /* src_x, src_y */ 0, 0, /* mask_x, mask_y */ 0, 0, /* dest_x, dest_y */ pixman_image_get_width (po->shadow_image), /* width */ pixman_image_get_height (po->shadow_image) /* height */); pixman_image_set_clip_region32 (po->shadow_image, NULL); pixman_region32_fini(&final_region); }
/** Paint an intersected region * * \param ev The view to be painted. * \param output The output being painted. * \param repaint_output The region to be painted in output coordinates. * \param source_clip The region of the source image to use, in source image * coordinates. If NULL, use the whole source image. * \param pixman_op Compositing operator, either SRC or OVER. */ static void repaint_region(struct weston_view *ev, struct weston_output *output, pixman_region32_t *repaint_output, pixman_region32_t *source_clip, pixman_op_t pixman_op) { struct pixman_renderer *pr = (struct pixman_renderer *) output->compositor->renderer; struct pixman_surface_state *ps = get_surface_state(ev->surface); struct pixman_output_state *po = get_output_state(output); struct weston_buffer_viewport *vp = &ev->surface->buffer_viewport; pixman_transform_t transform; pixman_filter_t filter; pixman_image_t *mask_image; pixman_color_t mask = { 0, }; /* Clip rendering to the damaged output region */ pixman_image_set_clip_region32(po->shadow_image, repaint_output); pixman_renderer_compute_transform(&transform, ev, output); if (ev->transform.enabled || output->current_scale != vp->buffer.scale) filter = PIXMAN_FILTER_BILINEAR; else filter = PIXMAN_FILTER_NEAREST; if (ps->buffer_ref.buffer) wl_shm_buffer_begin_access(ps->buffer_ref.buffer->shm_buffer); if (ev->alpha < 1.0) { mask.alpha = 0xffff * ev->alpha; mask_image = pixman_image_create_solid_fill(&mask); } else { mask_image = NULL; } if (source_clip) composite_clipped(ps->image, mask_image, po->shadow_image, &transform, filter, source_clip); else composite_whole(pixman_op, ps->image, mask_image, po->shadow_image, &transform, filter); if (mask_image) pixman_image_unref(mask_image); if (ps->buffer_ref.buffer) wl_shm_buffer_end_access(ps->buffer_ref.buffer->shm_buffer); if (pr->repaint_debug) pixman_image_composite32(PIXMAN_OP_OVER, pr->debug_color, /* src */ NULL /* mask */, po->shadow_image, /* dest */ 0, 0, /* src_x, src_y */ 0, 0, /* mask_x, mask_y */ 0, 0, /* dest_x, dest_y */ pixman_image_get_width (po->shadow_image), /* width */ pixman_image_get_height (po->shadow_image) /* height */); pixman_image_set_clip_region32 (po->shadow_image, NULL); }