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87 lines
3.3 KiB
C
87 lines
3.3 KiB
C
#ifndef _LOTTIE_ANIMATION_CAPI_H_
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#define _LOTTIE_ANIMATION_CAPI_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <lottiecommon.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct Lottie_Animation_S Lottie_Animation;
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LOT_EXPORT Lottie_Animation *lottie_animation_from_file(const char *file);
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LOT_EXPORT Lottie_Animation *lottie_animation_from_data(const char *data, const char *key);
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LOT_EXPORT void lottie_animation_destroy(Lottie_Animation *animation);
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LOT_EXPORT void lottie_animation_get_size(const Lottie_Animation *animation, size_t *w, size_t *h);
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LOT_EXPORT double lottie_animation_get_duration(const Lottie_Animation *animation);
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LOT_EXPORT size_t lottie_animation_get_totalframe(const Lottie_Animation *animation);
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LOT_EXPORT double lottie_animation_get_framerate(const Lottie_Animation *animation);
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/*
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* Request to update the content of the frame $frame_number in to Animation object.
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* frame_number, the content of the animation in that frame number
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* width , width of the viewbox
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* height , height of the viewbox
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*
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* PS : user must call lottie_animation_get_node_count and lottie_animation_get_node
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* to get the renderlist.
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*/
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LOT_EXPORT size_t lottie_animation_prepare_frame(Lottie_Animation *animation,
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size_t frameNo,
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size_t w, size_t h);
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LOT_EXPORT size_t lottie_animation_get_node_count(const Lottie_Animation *animation);
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LOT_EXPORT const LOTNode* lottie_animation_get_node(Lottie_Animation *animation, size_t idx);
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/*
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* Get the render tree which contains the snapshot of the animation object at frame $frame_number
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* frame_number, the content of the animation in that frame number
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* width , width of the viewbox
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* height , height of the viewbox
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*
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* PS : user has to traverse the tree for rendering. @see LOTLayerNode and @see LOTNode
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*/
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LOT_EXPORT const LOTLayerNode * lottie_animation_render_tree(Lottie_Animation *animation,
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size_t frameNo,
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size_t w, size_t h);
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/*
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* Request to render the content of the frame $frame_number to buffer $buffer asynchronously.
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* frame_number, the frame number needs to be rendered.
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* buffer , surface buffer use for rendering
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* width , width of the surface
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* height , height of the surface
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* bytes_per_line, stride of the surface in bytes.
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*
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* PS : user must call lottie_animation_render_flush to make sure render is finished.
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*/
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LOT_EXPORT void
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lottie_animation_render_async(Lottie_Animation *animation,
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size_t frame_number,
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uint32_t *buffer,
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size_t width,
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size_t height,
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size_t bytes_per_line);
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/*
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* Request to finish the current asyn renderer job for this animation object.
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* if render is finished then this call returns immidiately
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* if not it waits till render job finish and then return.
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* user must use lottie_animation_render_async and lottie_animation_render_flush
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* together to get the benefit of async rendering.
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*/
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LOT_EXPORT void
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lottie_animation_render_flush(Lottie_Animation *animation);
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#ifdef __cplusplus
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}
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#endif
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#endif //_LOTTIE_ANIMATION_CAPI_H_
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