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https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2025-11-03 09:01:40 -05:00
implement buffer transform
This commit is contained in:
Tony Crisci
parent
84c6dbd58d
commit
5b1ce84350
2 changed files with 98 additions and 11 deletions
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@ -23,7 +23,7 @@ struct wlr_surface_state {
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int32_t sx, sy;
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pixman_region32_t surface_damage, buffer_damage;
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pixman_region32_t opaque, input;
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uint32_t transform;
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enum wl_output_transform transform;
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int32_t scale;
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};
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@ -91,11 +91,33 @@ static void surface_set_input_region(struct wl_client *client,
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}
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}
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static void wlr_surface_get_effective_size(struct wlr_surface *surface,
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int swidth, int sheight, int *width, int *height) {
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int scale = surface->current.scale;
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enum wl_output_transform transform = surface->current.transform;
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int _width = swidth / scale;
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int _height = sheight / scale;
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if (transform == WL_OUTPUT_TRANSFORM_90 ||
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transform == WL_OUTPUT_TRANSFORM_270 ||
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transform == WL_OUTPUT_TRANSFORM_FLIPPED_90 ||
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transform == WL_OUTPUT_TRANSFORM_FLIPPED_270) {
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int tmp = _width;
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_width = _height;
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_height = tmp;
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}
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*width = _width;
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*height = _height;
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}
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static void wlr_surface_to_buffer_region(struct wlr_surface *surface,
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pixman_region32_t *surface_region, pixman_region32_t *buffer_region) {
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pixman_region32_t *surface_region, pixman_region32_t *buffer_region,
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int width, int height) {
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pixman_box32_t *src_rects, *dest_rects;
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int nrects, i;
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int scale = surface->current.scale;
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enum wl_output_transform transform = surface->current.transform;
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src_rects = pixman_region32_rectangles(surface_region, &nrects);
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dest_rects = malloc(nrects * sizeof(*dest_rects));
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@ -104,10 +126,66 @@ static void wlr_surface_to_buffer_region(struct wlr_surface *surface,
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}
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for (i = 0; i < nrects; i++) {
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dest_rects[i].x1 = src_rects[i].x1 * scale;
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dest_rects[i].y1 = src_rects[i].y1 * scale;
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dest_rects[i].x2 = src_rects[i].x2 * scale;
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dest_rects[i].y2 = src_rects[i].y2 * scale;
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switch (transform) {
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default:
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case WL_OUTPUT_TRANSFORM_NORMAL:
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dest_rects[i].x1 = src_rects[i].x1;
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dest_rects[i].y1 = src_rects[i].y1;
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dest_rects[i].x2 = src_rects[i].x2;
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dest_rects[i].y2 = src_rects[i].y2;
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break;
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case WL_OUTPUT_TRANSFORM_90:
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dest_rects[i].x1 = height - src_rects[i].y2;
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dest_rects[i].y1 = src_rects[i].x1;
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dest_rects[i].x2 = height - src_rects[i].y1;
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dest_rects[i].y2 = src_rects[i].x2;
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break;
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case WL_OUTPUT_TRANSFORM_180:
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dest_rects[i].x1 = width - src_rects[i].x2;
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dest_rects[i].y1 = height - src_rects[i].y2;
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dest_rects[i].x2 = width - src_rects[i].x1;
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dest_rects[i].y2 = height - src_rects[i].y1;
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break;
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case WL_OUTPUT_TRANSFORM_270:
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dest_rects[i].x1 = src_rects[i].y1;
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dest_rects[i].y1 = width - src_rects[i].x2;
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dest_rects[i].x2 = src_rects[i].y2;
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dest_rects[i].y2 = width - src_rects[i].x1;
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break;
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case WL_OUTPUT_TRANSFORM_FLIPPED:
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dest_rects[i].x1 = width - src_rects[i].x2;
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dest_rects[i].y1 = src_rects[i].y1;
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dest_rects[i].x2 = width - src_rects[i].x1;
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dest_rects[i].y2 = src_rects[i].y2;
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break;
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case WL_OUTPUT_TRANSFORM_FLIPPED_90:
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dest_rects[i].x1 = height - src_rects[i].y2;
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dest_rects[i].y1 = width - src_rects[i].x2;
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dest_rects[i].x2 = height - src_rects[i].y1;
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dest_rects[i].y2 = width - src_rects[i].x1;
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break;
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case WL_OUTPUT_TRANSFORM_FLIPPED_180:
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dest_rects[i].x1 = src_rects[i].x1;
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dest_rects[i].y1 = height - src_rects[i].y2;
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dest_rects[i].x2 = src_rects[i].x2;
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dest_rects[i].y2 = height - src_rects[i].y1;
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break;
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case WL_OUTPUT_TRANSFORM_FLIPPED_270:
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dest_rects[i].x1 = src_rects[i].y1;
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dest_rects[i].y1 = src_rects[i].x1;
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dest_rects[i].x2 = src_rects[i].y2;
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dest_rects[i].y2 = src_rects[i].x2;
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break;
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}
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}
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if (scale != 1) {
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for (i = 0; i < nrects; i++) {
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dest_rects[i].x1 *= scale;
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dest_rects[i].x2 *= scale;
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dest_rects[i].y1 *= scale;
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dest_rects[i].y2 *= scale;
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}
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}
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pixman_region32_fini(buffer_region);
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@ -119,20 +197,26 @@ static void surface_commit(struct wl_client *client,
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struct wl_resource *resource) {
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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surface->current.scale = surface->pending.scale;
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surface->current.transform = surface->pending.transform;
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if ((surface->pending.invalid & WLR_SURFACE_INVALID_BUFFER)) {
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surface->current.buffer = surface->pending.buffer;
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}
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if ((surface->pending.invalid & WLR_SURFACE_INVALID_SURFACE_DAMAGE)) {
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int width, height;
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wlr_texture_get_buffer_size(surface->texture, surface->current.buffer, &width, &height);
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wlr_texture_get_buffer_size(surface->texture, surface->current.buffer,
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&width, &height);
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int surface_width, surface_height;
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wlr_surface_get_effective_size(surface, width, height, &surface_width,
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&surface_height);
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pixman_region32_union(&surface->current.surface_damage,
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&surface->current.surface_damage,
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&surface->pending.surface_damage);
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pixman_region32_intersect_rect(&surface->current.surface_damage,
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&surface->current.surface_damage, 0, 0, width /
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surface->current.scale, height / surface->current.scale);
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&surface->current.surface_damage, 0, 0, surface_width,
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surface_height);
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pixman_region32_union(&surface->current.buffer_damage,
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&surface->current.buffer_damage,
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@ -141,7 +225,7 @@ static void surface_commit(struct wl_client *client,
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pixman_region32_t buffer_damage;
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pixman_region32_init(&buffer_damage);
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wlr_surface_to_buffer_region(surface, &surface->current.surface_damage,
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&buffer_damage);
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&buffer_damage, surface_width, surface_height);
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pixman_region32_union(&surface->current.buffer_damage,
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&surface->current.buffer_damage, &buffer_damage);
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@ -203,7 +287,8 @@ release:
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static void surface_set_buffer_transform(struct wl_client *client,
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struct wl_resource *resource, int transform) {
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wlr_log(L_DEBUG, "TODO: surface surface buffer transform");
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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surface->pending.transform = transform;
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}
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static void surface_set_buffer_scale(struct wl_client *client,
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@ -260,6 +345,8 @@ struct wlr_surface *wlr_surface_create(struct wl_resource *res,
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surface->resource = res;
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surface->current.scale = 1;
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surface->pending.scale = 1;
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surface->current.transform = WL_OUTPUT_TRANSFORM_NORMAL;
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surface->pending.transform = WL_OUTPUT_TRANSFORM_NORMAL;
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wl_signal_init(&surface->signals.commit);
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wl_list_init(&surface->frame_callback_list);
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wl_resource_set_implementation(res, &surface_interface,
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