buffer: introduce wlr_buffer_get_data_ptr
The function has been place in an internal header for API stability reasons.
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@ -0,0 +1,15 @@
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#ifndef 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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/**
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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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*
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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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*/
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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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#endif
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@ -19,6 +19,8 @@ struct wlr_buffer_impl {
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void (*destroy)(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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bool (*get_data_ptr)(struct wlr_buffer *buffer, void **data,
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size_t *stride);
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};
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/**
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@ -5,6 +5,7 @@
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#include <wlr/types/wlr_linux_dmabuf_v1.h>
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#include <wlr/util/log.h>
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#include "render/pixel_format.h"
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#include "types/wlr_buffer.h"
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#include "util/signal.h"
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void wlr_buffer_init(struct wlr_buffer *buffer,
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@ -65,6 +66,13 @@ bool wlr_buffer_get_dmabuf(struct wlr_buffer *buffer,
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return buffer->impl->get_dmabuf(buffer, attribs);
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}
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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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if (!buffer->impl->get_data_ptr) {
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return false;
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}
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return buffer->impl->get_data_ptr(buffer, data, size);
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}
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bool wlr_resource_is_buffer(struct wl_resource *resource) {
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return strcmp(wl_resource_get_class(resource), wl_buffer_interface.name) == 0;
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