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buffer: add format param to get_data_ptr
Allow wlr_buffer_impl.get_data_ptr to return a format. This allows the Pixman renderer to not care about get_dmabuf/get_shm, and only care about get_data_ptr. This will also help with [1], because client wl_shm buffers can't implement get_shm. [1]: https://github.com/swaywm/wlroots/pull/2892 References: https://github.com/swaywm/wlroots/issues/2864
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5 changed files with 12 additions and 20 deletions
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@ -2,14 +2,15 @@
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#define TYPES_WLR_BUFFER
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#define TYPES_WLR_BUFFER
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#include <wlr/types/wlr_buffer.h>
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#include <wlr/types/wlr_buffer.h>
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/**
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/**
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* Access a pointer to the allocated data from the underlying implementation,
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* Access a pointer to the allocated data from the underlying implementation,
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* and its stride.
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* its format and its stride.
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*
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*
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* The returned pointer should be pointing to a valid memory location for read
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* The returned pointer should be pointing to a valid memory location for read
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* and write operations.
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* and write operations.
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*/
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*/
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bool buffer_get_data_ptr(struct wlr_buffer *buffer, void **data,
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bool buffer_get_data_ptr(struct wlr_buffer *buffer, void **data,
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size_t *stride);
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uint32_t *format, size_t *stride);
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#endif
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#endif
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@ -27,7 +27,7 @@ struct wlr_buffer_impl {
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bool (*get_dmabuf)(struct wlr_buffer *buffer,
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bool (*get_dmabuf)(struct wlr_buffer *buffer,
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struct wlr_dmabuf_attributes *attribs);
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struct wlr_dmabuf_attributes *attribs);
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bool (*get_data_ptr)(struct wlr_buffer *buffer, void **data,
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bool (*get_data_ptr)(struct wlr_buffer *buffer, void **data,
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size_t *stride);
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uint32_t *format, size_t *stride);
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bool (*get_shm)(struct wlr_buffer *buffer,
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bool (*get_shm)(struct wlr_buffer *buffer,
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struct wlr_shm_attributes *attribs);
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struct wlr_shm_attributes *attribs);
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};
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};
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@ -83,26 +83,16 @@ static struct wlr_pixman_buffer *create_buffer(
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buffer->buffer = wlr_buffer;
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buffer->buffer = wlr_buffer;
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buffer->renderer = renderer;
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buffer->renderer = renderer;
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void *data = NULL;
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uint32_t drm_format;
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uint32_t drm_format;
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struct wlr_dmabuf_attributes dmabuf = {0};
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size_t stride;
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struct wlr_shm_attributes shm = {0};
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if (!buffer_get_data_ptr(wlr_buffer, &data, &drm_format, &stride)) {
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if (wlr_buffer_get_dmabuf(wlr_buffer, &dmabuf)) {
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wlr_log(WLR_ERROR, "Failed to get buffer data");
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drm_format = dmabuf.format;
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} else if (wlr_buffer_get_shm(wlr_buffer, &shm)) {
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drm_format = shm.format;
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} else {
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goto error_buffer;
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goto error_buffer;
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}
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}
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uint32_t format = get_pixman_format_from_drm(drm_format);
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uint32_t format = get_pixman_format_from_drm(drm_format);
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void *data = NULL;
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size_t stride;
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if (!buffer_get_data_ptr(wlr_buffer, &data, &stride)) {
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wlr_log(WLR_ERROR, "Failed to get buffer data");
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goto error_buffer;
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}
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buffer->image = pixman_image_create_bits(format, wlr_buffer->width,
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buffer->image = pixman_image_create_bits(format, wlr_buffer->width,
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wlr_buffer->height, data, stride);
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wlr_buffer->height, data, stride);
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if (!buffer->image) {
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if (!buffer->image) {
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@ -31,9 +31,10 @@ static bool buffer_get_shm(struct wlr_buffer *wlr_buffer,
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}
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}
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static bool buffer_get_data_ptr(struct wlr_buffer *wlr_buffer, void **data,
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static bool buffer_get_data_ptr(struct wlr_buffer *wlr_buffer, void **data,
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size_t *stride) {
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uint32_t *format, size_t *stride) {
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struct wlr_shm_buffer *buffer = shm_buffer_from_buffer(wlr_buffer);
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struct wlr_shm_buffer *buffer = shm_buffer_from_buffer(wlr_buffer);
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*data = buffer->data;
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*data = buffer->data;
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*format = buffer->shm.format;
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*stride = buffer->shm.stride;
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*stride = buffer->shm.stride;
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return true;
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return true;
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}
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}
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@ -67,11 +67,11 @@ bool wlr_buffer_get_dmabuf(struct wlr_buffer *buffer,
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}
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}
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bool buffer_get_data_ptr(struct wlr_buffer *buffer, void **data,
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bool buffer_get_data_ptr(struct wlr_buffer *buffer, void **data,
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size_t *size) {
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uint32_t *format, size_t *stride) {
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if (!buffer->impl->get_data_ptr) {
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if (!buffer->impl->get_data_ptr) {
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return false;
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return false;
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}
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}
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return buffer->impl->get_data_ptr(buffer, data, size);
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return buffer->impl->get_data_ptr(buffer, data, format, stride);
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}
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}
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bool wlr_buffer_get_shm(struct wlr_buffer *buffer,
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bool wlr_buffer_get_shm(struct wlr_buffer *buffer,
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