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backend: update present interface for partial updates

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Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2019-07-25 20:44:35 +01:00
parent bc3ca92e04
commit f86d6b7cbd
4 changed files with 8 additions and 8 deletions
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10
src/backend/backend.h
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@@ -114,8 +114,7 @@ struct backend_operations {
void (*prepare)(backend_t *backend_data, const region_t *reg_damage);
/**
* Paint the content of an image onto the (possibly buffered)
* target picture.
* Paint the content of an image onto the back buffer
*
* @param backend_data the backend data
* @param image_data the image to paint
@@ -134,10 +133,11 @@ struct backend_operations {
const region_t *reg_blur, const region_t *reg_visible)
attr_nonnull(1, 3, 4, 5);
/// Present the back buffer onto the screen.
/// Present part of the back buffer onto the screen.
///
/// Optional if the screen is not buffered
void (*present)(backend_t *backend_data) attr_nonnull(1);
/// @param region part of the screen that should be updated. if NULL, update the
/// whole screen
void (*present)(backend_t *backend_data, const region_t *region) attr_nonnull(1);
/**
* Bind a X pixmap to the backend's internal image data structure.