387 lines
12 KiB
C
387 lines
12 KiB
C
#include <assert.h>
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#include <stdlib.h>
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#include <wayland-server.h>
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#include <wlr/util/log.h>
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#include <wlr/egl.h>
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#include <wlr/render/interface.h>
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#include <wlr/types/wlr_surface.h>
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#include <wlr/render/matrix.h>
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static void surface_destroy(struct wl_client *client, struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static void surface_attach(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *buffer, int32_t sx, int32_t sy) {
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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surface->pending.invalid |= WLR_SURFACE_INVALID_BUFFER;
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surface->pending.buffer = buffer;
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}
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static void surface_damage(struct wl_client *client,
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struct wl_resource *resource,
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int32_t x, int32_t y, int32_t width, int32_t height) {
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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if (width < 0 || height < 0) {
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return;
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}
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surface->pending.invalid |= WLR_SURFACE_INVALID_SURFACE_DAMAGE;
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pixman_region32_union_rect(&surface->pending.surface_damage,
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&surface->pending.surface_damage,
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x, y, width, height);
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}
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static void destroy_frame_callback(struct wl_resource *resource) {
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struct wlr_frame_callback *cb = wl_resource_get_user_data(resource);
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wl_list_remove(&cb->link);
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free(cb);
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}
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static void surface_frame(struct wl_client *client,
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struct wl_resource *resource, uint32_t callback) {
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struct wlr_frame_callback *cb;
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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cb = malloc(sizeof(struct wlr_frame_callback));
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if (cb == NULL) {
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wl_resource_post_no_memory(resource);
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return;
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}
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cb->resource = wl_resource_create(client,
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&wl_callback_interface, 1, callback);
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if (cb->resource == NULL) {
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free(cb);
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wl_resource_post_no_memory(resource);
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return;
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}
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wl_resource_set_implementation(cb->resource,
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NULL, cb, destroy_frame_callback);
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wl_list_insert(surface->frame_callback_list.prev, &cb->link);
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}
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static void surface_set_opaque_region(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *region_resource) {
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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surface->pending.invalid |= WLR_SURFACE_INVALID_OPAQUE_REGION;
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if (region_resource) {
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pixman_region32_t *region = wl_resource_get_user_data(region_resource);
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pixman_region32_copy(&surface->pending.opaque, region);
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} else {
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pixman_region32_clear(&surface->pending.opaque);
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}
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}
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static void surface_set_input_region(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *region_resource) {
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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surface->pending.invalid |= WLR_SURFACE_INVALID_INPUT_REGION;
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if (region_resource) {
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pixman_region32_t *region = wl_resource_get_user_data(region_resource);
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pixman_region32_copy(&surface->pending.input, region);
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} else {
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pixman_region32_fini(&surface->pending.input);
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pixman_region32_init_rect(&surface->pending.input,
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INT32_MIN, INT32_MIN, UINT32_MAX, UINT32_MAX);
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}
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}
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static void wlr_surface_update_size(struct wlr_surface *surface) {
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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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wlr_texture_get_buffer_size(surface->texture, surface->current.buffer,
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&surface->current.buffer_width, &surface->current.buffer_height);
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int _width = surface->current.buffer_width / scale;
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int _height = surface->current.buffer_height / 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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surface->current.width = _width;
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surface->current.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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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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if (!dest_rects) {
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return;
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}
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for (i = 0; i < nrects; i++) {
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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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pixman_region32_init_rects(buffer_region, dest_rects, nrects);
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free(dest_rects);
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}
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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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int32_t oldw = surface->current.buffer_width;
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int32_t oldh = surface->current.buffer_height;
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wlr_surface_update_size(surface);
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surface->reupload_buffer = oldw != surface->current.buffer_width ||
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oldh != surface->current.buffer_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, surface->current.width,
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surface->current.height);
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pixman_region32_union(&surface->current.buffer_damage,
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&surface->current.buffer_damage,
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&surface->pending.buffer_damage);
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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, surface->current.width, surface->current.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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pixman_region32_intersect_rect(&surface->current.buffer_damage,
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&surface->current.buffer_damage, 0, 0,
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surface->current.buffer_width, surface->current.buffer_height);
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pixman_region32_clear(&surface->pending.surface_damage);
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pixman_region32_clear(&surface->pending.buffer_damage);
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}
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// TODO: Commit other changes
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surface->pending.invalid = 0;
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// TODO: add the invalid bitfield to this callback
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wl_signal_emit(&surface->signals.commit, surface);
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}
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void wlr_surface_flush_damage(struct wlr_surface *surface) {
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if (!surface->current.buffer) {
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if (surface->texture->valid) {
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// TODO: Detach buffers
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}
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return;
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}
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struct wl_shm_buffer *buffer = wl_shm_buffer_get(surface->current.buffer);
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if (!buffer) {
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if (wlr_renderer_buffer_is_drm(surface->renderer, surface->pending.buffer)) {
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wlr_texture_upload_drm(surface->texture, surface->pending.buffer);
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goto release;
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} else {
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wlr_log(L_INFO, "Unknown buffer handle attached");
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return;
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}
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}
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uint32_t format = wl_shm_buffer_get_format(buffer);
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if (surface->reupload_buffer) {
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wlr_texture_upload_shm(surface->texture, format, buffer);
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} else {
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pixman_region32_t damage = surface->current.buffer_damage;
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if (!pixman_region32_not_empty(&damage)) {
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goto release;
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}
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int n;
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pixman_box32_t *rects = pixman_region32_rectangles(&damage, &n);
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for (int i = 0; i < n; ++i) {
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pixman_box32_t rect = rects[i];
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if (!wlr_texture_update_shm(surface->texture, format,
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rect.x1, rect.y1,
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rect.x2 - rect.x1,
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rect.y2 - rect.y1,
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buffer)) {
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break;
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}
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}
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}
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release:
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pixman_region32_fini(&surface->current.surface_damage);
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pixman_region32_init(&surface->current.surface_damage);
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pixman_region32_fini(&surface->current.buffer_damage);
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pixman_region32_init(&surface->current.buffer_damage);
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wl_resource_post_event(surface->current.buffer, WL_BUFFER_RELEASE);
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surface->current.buffer = NULL;
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}
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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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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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struct wl_resource *resource,
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int32_t scale) {
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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surface->pending.scale = scale;
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}
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static void surface_damage_buffer(struct wl_client *client,
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struct wl_resource *resource,
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int32_t x, int32_t y, int32_t width,
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int32_t height) {
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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if (width < 0 || height < 0) {
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return;
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}
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surface->pending.invalid |= WLR_SURFACE_INVALID_SURFACE_DAMAGE;
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pixman_region32_union_rect(&surface->pending.buffer_damage,
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&surface->pending.buffer_damage,
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x, y, width, height);
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}
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const struct wl_surface_interface surface_interface = {
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surface_destroy,
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surface_attach,
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surface_damage,
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surface_frame,
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surface_set_opaque_region,
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surface_set_input_region,
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surface_commit,
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surface_set_buffer_transform,
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surface_set_buffer_scale,
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surface_damage_buffer
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};
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static void destroy_surface(struct wl_resource *resource) {
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struct wlr_surface *surface = wl_resource_get_user_data(resource);
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wlr_texture_destroy(surface->texture);
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struct wlr_frame_callback *cb, *next;
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wl_list_for_each_safe(cb, next, &surface->frame_callback_list, link) {
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wl_resource_destroy(cb->resource);
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}
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free(surface);
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}
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struct wlr_surface *wlr_surface_create(struct wl_resource *res,
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struct wlr_renderer *renderer) {
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struct wlr_surface *surface;
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if (!(surface = calloc(1, sizeof(struct wlr_surface)))) {
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wl_resource_post_no_memory(res);
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return NULL;
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}
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surface->renderer = renderer;
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surface->texture = wlr_render_texture_create(renderer);
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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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surface, destroy_surface);
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return surface;
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}
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void wlr_surface_get_matrix(struct wlr_surface *surface,
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float (*matrix)[16],
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const float (*projection)[16],
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const float (*transform)[16]) {
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int width = surface->texture->width / surface->current.scale;
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int height = surface->texture->height / surface->current.scale;
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float scale[16];
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wlr_matrix_identity(matrix);
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if (transform) {
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wlr_matrix_mul(matrix, transform, matrix);
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}
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wlr_matrix_scale(&scale, width, height, 1);
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wlr_matrix_mul(matrix, &scale, matrix);
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wlr_matrix_mul(projection, matrix, matrix);
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}
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