mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-22 04:45:58 +01:00
screencopy-v1: use wlr_buffer APIs
Instead of using low-level wl_shm_buffer and wlr_dmabuf_v1_buffer APIs, use the unified wlr_buffer APIs. That way it doesn't matter what the exact wlr_buffer implementation is used, any which provides the necessary capabilities (data_ptr or dmabuf) would work. Simplifies the logic a bit, and will make the transition to wlr_shm easier.
This commit is contained in:
Simon Ser
Simon Zeni
parent
f03da48491
commit
c153ae3c5d
2 changed files with 88 additions and 114 deletions
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@ -45,10 +45,8 @@ struct wlr_screencopy_frame_v1 {
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bool with_damage;
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struct wl_shm_buffer *shm_buffer;
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struct wlr_dmabuf_v1_buffer *dma_buffer;
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struct wl_listener buffer_destroy;
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enum wlr_buffer_cap buffer_cap;
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struct wlr_buffer *buffer;
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struct wlr_output *output;
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struct wl_listener output_commit;
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@ -5,7 +5,6 @@
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#include <wlr/render/wlr_renderer.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_linux_dmabuf_v1.h>
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#include <wlr/types/wlr_screencopy_v1.h>
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#include <wlr/backend.h>
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#include <wlr/util/box.h>
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@ -138,8 +137,7 @@ static void frame_destroy(struct wlr_screencopy_frame_v1 *frame) {
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if (frame == NULL) {
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return;
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}
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if (frame->output != NULL &&
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(frame->shm_buffer != NULL || frame->dma_buffer != NULL)) {
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if (frame->output != NULL && frame->buffer != NULL) {
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wlr_output_lock_attach_render(frame->output, false);
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if (frame->cursor_locked) {
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wlr_output_lock_software_cursors(frame->output, false);
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@ -149,9 +147,9 @@ static void frame_destroy(struct wlr_screencopy_frame_v1 *frame) {
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wl_list_remove(&frame->output_commit.link);
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wl_list_remove(&frame->output_destroy.link);
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wl_list_remove(&frame->output_enable.link);
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wl_list_remove(&frame->buffer_destroy.link);
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// Make the frame resource inert
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wl_resource_set_user_data(frame->resource, NULL);
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wlr_buffer_unlock(frame->buffer);
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client_unref(frame->client);
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free(frame);
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}
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@ -193,44 +191,55 @@ static void frame_send_ready(struct wlr_screencopy_frame_v1 *frame,
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static bool frame_shm_copy(struct wlr_screencopy_frame_v1 *frame,
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struct wlr_buffer *src_buffer, uint32_t *flags) {
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struct wl_shm_buffer *shm_buffer = frame->shm_buffer;
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struct wlr_output *output = frame->output;
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struct wlr_renderer *renderer = output->renderer;
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assert(renderer);
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int x = frame->box.x;
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int y = frame->box.y;
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int width = frame->buffer->width;
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int height = frame->buffer->height;
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enum wl_shm_format wl_shm_format = wl_shm_buffer_get_format(shm_buffer);
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uint32_t drm_format = convert_wl_shm_format_to_drm(wl_shm_format);
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int32_t width = wl_shm_buffer_get_width(shm_buffer);
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int32_t height = wl_shm_buffer_get_height(shm_buffer);
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int32_t stride = wl_shm_buffer_get_stride(shm_buffer);
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void *data;
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uint32_t format;
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size_t stride;
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if (!wlr_buffer_begin_data_ptr_access(frame->buffer,
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WLR_BUFFER_DATA_PTR_ACCESS_WRITE, &data, &format, &stride)) {
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return false;
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}
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wl_shm_buffer_begin_access(shm_buffer);
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void *data = wl_shm_buffer_get_data(shm_buffer);
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uint32_t renderer_flags = 0;
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bool ok;
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ok = wlr_renderer_begin_with_buffer(renderer, src_buffer);
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ok = ok && wlr_renderer_read_pixels(renderer, drm_format,
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&renderer_flags, stride, width, height, x, y, 0, 0, data);
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ok = ok && wlr_renderer_read_pixels(renderer, format, &renderer_flags,
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stride, width, height, x, y, 0, 0, data);
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wlr_renderer_end(renderer);
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*flags = renderer_flags & WLR_RENDERER_READ_PIXELS_Y_INVERT ?
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ZWLR_SCREENCOPY_FRAME_V1_FLAGS_Y_INVERT : 0;
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wl_shm_buffer_end_access(shm_buffer);
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wlr_buffer_end_data_ptr_access(frame->buffer);
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return ok;
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}
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static bool blit_dmabuf(struct wlr_renderer *renderer,
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struct wlr_dmabuf_v1_buffer *dst_dmabuf,
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static bool frame_dma_copy(struct wlr_screencopy_frame_v1 *frame,
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struct wlr_buffer *src_buffer) {
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struct wlr_buffer *dst_buffer = wlr_buffer_lock(&dst_dmabuf->base);
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struct wlr_buffer *dst_buffer = frame->buffer;
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struct wlr_output *output = frame->output;
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struct wlr_renderer *renderer = output->renderer;
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assert(renderer);
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// TODO: add support for copying regions with DMA-BUFs
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if (frame->box.x != 0 || frame->box.y != 0 ||
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src_buffer->width != frame->box.width ||
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src_buffer->height != frame->box.height) {
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return false;
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}
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struct wlr_texture *src_tex =
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wlr_texture_from_buffer(renderer, src_buffer);
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if (src_tex == NULL) {
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goto error_src_tex;
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return false;
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}
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float mat[9];
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@ -247,33 +256,13 @@ static bool blit_dmabuf(struct wlr_renderer *renderer,
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wlr_renderer_end(renderer);
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wlr_texture_destroy(src_tex);
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wlr_buffer_unlock(dst_buffer);
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return true;
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error_renderer_begin:
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wlr_texture_destroy(src_tex);
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error_src_tex:
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wlr_buffer_unlock(dst_buffer);
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return false;
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}
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static bool frame_dma_copy(struct wlr_screencopy_frame_v1 *frame,
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struct wlr_buffer *src_buffer) {
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struct wlr_dmabuf_v1_buffer *dst_buffer = frame->dma_buffer;
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struct wlr_output *output = frame->output;
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struct wlr_renderer *renderer = output->renderer;
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assert(renderer);
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// TODO: add support for copying regions with DMA-BUFs
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if (frame->box.x != 0 || frame->box.y != 0 ||
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src_buffer->width != frame->box.width ||
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src_buffer->height != frame->box.height) {
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return false;
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}
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return blit_dmabuf(renderer, dst_buffer, src_buffer);
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}
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static void frame_handle_output_commit(struct wl_listener *listener,
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void *data) {
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struct wlr_screencopy_frame_v1 *frame =
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@ -288,7 +277,7 @@ static void frame_handle_output_commit(struct wl_listener *listener,
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return;
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}
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if (!frame->shm_buffer && !frame->dma_buffer) {
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if (!frame->buffer) {
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return;
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}
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@ -303,10 +292,18 @@ static void frame_handle_output_commit(struct wl_listener *listener,
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wl_list_remove(&frame->output_commit.link);
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wl_list_init(&frame->output_commit.link);
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uint32_t flags = 0;
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bool ok = frame->shm_buffer ?
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frame_shm_copy(frame, buffer, &flags) : frame_dma_copy(frame, buffer);
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bool ok;
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switch (frame->buffer_cap) {
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case WLR_BUFFER_CAP_DMABUF:
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ok = frame_dma_copy(frame, buffer);
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break;
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case WLR_BUFFER_CAP_DATA_PTR:
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ok = frame_shm_copy(frame, buffer, &flags);
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break;
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default:
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abort(); // unreachable
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}
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if (!ok) {
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zwlr_screencopy_frame_v1_send_failed(frame->resource);
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frame_destroy(frame);
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@ -337,14 +334,6 @@ static void frame_handle_output_destroy(struct wl_listener *listener,
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frame_destroy(frame);
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}
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static void frame_handle_buffer_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_screencopy_frame_v1 *frame =
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wl_container_of(listener, frame, buffer_destroy);
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zwlr_screencopy_frame_v1_send_failed(frame->resource);
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frame_destroy(frame);
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}
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static void frame_handle_copy(struct wl_client *wl_client,
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struct wl_resource *frame_resource,
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struct wl_resource *buffer_resource) {
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@ -361,78 +350,69 @@ static void frame_handle_copy(struct wl_client *wl_client,
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return;
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}
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struct wlr_dmabuf_v1_buffer *dma_buffer = NULL;
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struct wl_shm_buffer *shm_buffer = wl_shm_buffer_get(buffer_resource);
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if (shm_buffer == NULL &&
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wlr_dmabuf_v1_resource_is_buffer(buffer_resource)) {
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dma_buffer =
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wlr_dmabuf_v1_buffer_from_buffer_resource(buffer_resource);
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}
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if (shm_buffer == NULL && dma_buffer == NULL) {
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struct wlr_buffer *buffer = wlr_buffer_from_resource(buffer_resource);
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if (buffer == NULL) {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_INVALID_BUFFER,
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"unsupported buffer type");
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"invalid buffer");
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return;
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}
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int32_t width = 0;
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int32_t height = 0;
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if (shm_buffer) {
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uint32_t fmt =
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convert_wl_shm_format_to_drm(wl_shm_buffer_get_format(shm_buffer));
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if (fmt != frame->shm_format) {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_INVALID_BUFFER,
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"invalid buffer format");
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return;
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}
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int32_t stride = wl_shm_buffer_get_stride(shm_buffer);
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if (stride != frame->shm_stride) {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_INVALID_BUFFER,
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"invalid buffer stride");
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return;
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}
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width = wl_shm_buffer_get_width(shm_buffer);
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height = wl_shm_buffer_get_height(shm_buffer);
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} else if (dma_buffer) {
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uint32_t fmt = dma_buffer->attributes.format;
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if (fmt != frame->dmabuf_format) {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_INVALID_BUFFER,
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"invalid buffer format");
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return;
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}
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width = dma_buffer->attributes.width;
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height = dma_buffer->attributes.height;
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} else {
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abort();
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}
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if (width != frame->box.width || height != frame->box.height) {
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if (buffer->width != frame->box.width || buffer->height != frame->box.height) {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_INVALID_BUFFER,
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"invalid buffer dimensions");
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return;
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}
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if (frame->shm_buffer != NULL || frame->dma_buffer != NULL) {
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if (frame->buffer != NULL) {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_ALREADY_USED,
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"frame already used");
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return;
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}
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frame->shm_buffer = shm_buffer;
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frame->dma_buffer = dma_buffer;
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enum wlr_buffer_cap cap;
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struct wlr_dmabuf_attributes dmabuf;
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void *data;
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uint32_t format;
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size_t stride;
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if (wlr_buffer_get_dmabuf(buffer, &dmabuf)) {
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cap = WLR_BUFFER_CAP_DMABUF;
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if (dmabuf.format != frame->dmabuf_format) {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_INVALID_BUFFER,
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"invalid buffer format");
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return;
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}
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} else if (wlr_buffer_begin_data_ptr_access(buffer,
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WLR_BUFFER_DATA_PTR_ACCESS_WRITE, &data, &format, &stride)) {
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wlr_buffer_end_data_ptr_access(buffer);
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cap = WLR_BUFFER_CAP_DATA_PTR;
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if (format != frame->shm_format) {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_INVALID_BUFFER,
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"invalid buffer format");
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return;
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}
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if (stride != (size_t)frame->shm_stride) {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_INVALID_BUFFER,
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"invalid buffer stride");
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return;
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}
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} else {
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wl_resource_post_error(frame->resource,
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ZWLR_SCREENCOPY_FRAME_V1_ERROR_INVALID_BUFFER,
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"unsupported buffer type");
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return;
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}
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frame->buffer = buffer;
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frame->buffer_cap = cap;
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wl_signal_add(&output->events.commit, &frame->output_commit);
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frame->output_commit.notify = frame_handle_output_commit;
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@ -440,9 +420,6 @@ static void frame_handle_copy(struct wl_client *wl_client,
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wl_signal_add(&output->events.destroy, &frame->output_enable);
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frame->output_enable.notify = frame_handle_output_enable;
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wl_resource_add_destroy_listener(buffer_resource, &frame->buffer_destroy);
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frame->buffer_destroy.notify = frame_handle_buffer_destroy;
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// Schedule a buffer commit
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wlr_output_schedule_frame(output);
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@ -527,7 +504,6 @@ static void capture_output(struct wl_client *wl_client,
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wl_list_init(&frame->output_commit.link);
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wl_list_init(&frame->output_enable.link);
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wl_list_init(&frame->buffer_destroy.link);
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wl_signal_add(&output->events.destroy, &frame->output_destroy);
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frame->output_destroy.notify = frame_handle_output_destroy;
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