mirror of
https://github.com/thorvg/thorvg.git
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183 lines
8.2 KiB
C
183 lines
8.2 KiB
C
#ifndef __THORVG_CAPI_H__
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#define __THORVG_CAPI_H__
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#ifdef TVG_EXPORT
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#undef TVG_EXPORT
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#endif
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#ifdef TVG_BUILD
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#define TVG_EXPORT __attribute__ ((visibility ("default")))
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#else
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#define TVG_EXPORT
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct _Tvg_Canvas Tvg_Canvas;
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typedef struct _Tvg_Paint Tvg_Paint;
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typedef struct _Tvg_Gradient Tvg_Gradient;
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#define TVG_ENGINE_SW (1 << 1)
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#define TVG_ENGINE_GL (1 << 2)
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#define TVG_COLORSPACE_ABGR8888 0
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#define TVG_COLORSPACE_ARGB8888 1
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typedef enum {
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TVG_RESULT_SUCCESS = 0,
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TVG_RESULT_INVALID_ARGUMENT,
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TVG_RESULT_INSUFFICIENT_CONDITION,
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TVG_RESULT_FAILED_ALLOCATION,
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TVG_RESULT_MEMORY_CORRUPTION,
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TVG_RESULT_NOT_SUPPORTED,
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TVG_RESULT_UNKNOWN
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} Tvg_Result;
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typedef enum {
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TVG_PATH_COMMAND_CLOSE = 0,
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TVG_PATH_COMMAND_MOVE_TO,
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TVG_PATH_COMMAND_LINE_TO,
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TVG_PATH_COMMAND_CUBIC_TO
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} Tvg_Path_Command;
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typedef enum {
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TVG_STROKE_CAP_SQUARE = 0,
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TVG_STROKE_CAP_ROUND,
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TVG_STROKE_CAP_BUTT
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} Tvg_Stroke_Cap;
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typedef enum {
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TVG_STROKE_JOIN_BEVEL = 0,
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TVG_STROKE_JOIN_ROUND,
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TVG_STROKE_JOIN_MITER
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} Tvg_Stroke_Join;
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typedef enum {
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TVG_STROKE_FILL_PAD = 0,
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TVG_STROKE_FILL_REFLECT,
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TVG_STROKE_FILL_REPEAT
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} Tvg_Stroke_Fill;
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typedef struct
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{
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float x, y;
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} Tvg_Point;
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typedef struct
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{
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float e11, e12, e13;
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float e21, e22, e23;
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float e31, e32, e33;
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} Tvg_Matrix;
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typedef struct
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{
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float offset;
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uint8_t r, g, b, a;
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} Tvg_Color_Stop;
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/************************************************************************/
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/* Engine API */
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/************************************************************************/
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TVG_EXPORT Tvg_Result tvg_engine_init(unsigned engine_method, unsigned threads);
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TVG_EXPORT Tvg_Result tvg_engine_term(unsigned engine_method);
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/************************************************************************/
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/* SwCanvas API */
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/************************************************************************/
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TVG_EXPORT Tvg_Canvas* tvg_swcanvas_create();
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TVG_EXPORT Tvg_Result tvg_swcanvas_set_target(Tvg_Canvas* canvas, uint32_t* buffer, uint32_t stride, uint32_t w, uint32_t h, uint32_t cs);
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/************************************************************************/
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/* Common Canvas API */
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/************************************************************************/
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TVG_EXPORT Tvg_Result tvg_canvas_destroy(Tvg_Canvas* canvas);
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TVG_EXPORT Tvg_Result tvg_canvas_push(Tvg_Canvas* canvas, Tvg_Paint* paint);
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TVG_EXPORT Tvg_Result tvg_canvas_reserve(Tvg_Canvas* canvas, uint32_t n);
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TVG_EXPORT Tvg_Result tvg_canvas_clear(Tvg_Canvas* canvas);
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TVG_EXPORT Tvg_Result tvg_canvas_update(Tvg_Canvas* canvas);
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TVG_EXPORT Tvg_Result tvg_canvas_update_paint(Tvg_Canvas* canvas, Tvg_Paint* paint);
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TVG_EXPORT Tvg_Result tvg_canvas_draw(Tvg_Canvas* canvas);
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TVG_EXPORT Tvg_Result tvg_canvas_sync(Tvg_Canvas* canvas);
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/************************************************************************/
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/* Paint API */
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/************************************************************************/
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TVG_EXPORT Tvg_Result tvg_paint_del(Tvg_Paint* paint);
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TVG_EXPORT Tvg_Result tvg_paint_scale(Tvg_Paint* paint, float factor);
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TVG_EXPORT Tvg_Result tvg_paint_rotate(Tvg_Paint* paint, float degree);
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TVG_EXPORT Tvg_Result tvg_paint_translate(Tvg_Paint* paint, float x, float y);
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TVG_EXPORT Tvg_Result tvg_paint_transform(Tvg_Paint* paint, const Tvg_Matrix* m);
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TVG_EXPORT Tvg_Paint* tvg_paint_duplicate(Tvg_Paint* paint);
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/************************************************************************/
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/* Shape API */
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/************************************************************************/
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TVG_EXPORT Tvg_Paint* tvg_shape_new();
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TVG_EXPORT Tvg_Result tvg_shape_reset(Tvg_Paint* paint);
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TVG_EXPORT Tvg_Result tvg_shape_move_to(Tvg_Paint* paint, float x, float y);
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TVG_EXPORT Tvg_Result tvg_shape_line_to(Tvg_Paint* paint, float x, float y);
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TVG_EXPORT Tvg_Result tvg_shape_cubic_to(Tvg_Paint* paint, float cx1, float cy1, float cx2, float cy2, float x, float y);
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TVG_EXPORT Tvg_Result tvg_shape_close(Tvg_Paint* paint);
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TVG_EXPORT Tvg_Result tvg_shape_append_rect(Tvg_Paint* paint, float x, float y, float w, float h, float rx, float ry);
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TVG_EXPORT Tvg_Result tvg_shape_append_circle(Tvg_Paint* paint, float cx, float cy, float rx, float ry);
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TVG_EXPORT Tvg_Result tvg_shape_append_arc(Tvg_Paint* paint, float cx, float cy, float radius, float startAngle, float sweep, uint8_t pie);
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TVG_EXPORT Tvg_Result tvg_shape_append_path(Tvg_Paint* paint, const Tvg_Path_Command* cmds, uint32_t cmdCnt, const Tvg_Point* pts, uint32_t ptsCnt);
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TVG_EXPORT Tvg_Result tvg_shape_get_path_coords(const Tvg_Paint* paint, const Tvg_Point** pts, uint32_t* cnt);
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TVG_EXPORT Tvg_Result tvg_shape_get_path_commands(const Tvg_Paint* paint, const Tvg_Path_Command** cmds, uint32_t* cnt);
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TVG_EXPORT Tvg_Result tvg_shape_set_stroke_width(Tvg_Paint* paint, float width);
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TVG_EXPORT Tvg_Result tvg_shape_get_stroke_width(const Tvg_Paint* paint, float* width);
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TVG_EXPORT Tvg_Result tvg_shape_set_stroke_color(Tvg_Paint* paint, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
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TVG_EXPORT Tvg_Result tvg_shape_get_stroke_color(const Tvg_Paint* paint, uint8_t* r, uint8_t* g, uint8_t* b, uint8_t* a);
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TVG_EXPORT Tvg_Result tvg_shape_set_stroke_dash(Tvg_Paint* paint, const float* dashPattern, uint32_t cnt);
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TVG_EXPORT Tvg_Result tvg_shape_get_stroke_dash(const Tvg_Paint* paint, const float** dashPattern, uint32_t* cnt);
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TVG_EXPORT Tvg_Result tvg_shape_set_stroke_cap(Tvg_Paint* paint, Tvg_Stroke_Cap cap);
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TVG_EXPORT Tvg_Result tvg_shape_get_stroke_cap(const Tvg_Paint* paint, Tvg_Stroke_Cap* cap);
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TVG_EXPORT Tvg_Result tvg_shape_set_stroke_join(Tvg_Paint* paint, Tvg_Stroke_Join join);
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TVG_EXPORT Tvg_Result tvg_shape_get_stroke_join(const Tvg_Paint* paint, Tvg_Stroke_Join* join);
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TVG_EXPORT Tvg_Result tvg_shape_set_fill_color(Tvg_Paint* paint, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
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TVG_EXPORT Tvg_Result tvg_shape_get_fill_color(const Tvg_Paint* paint, uint8_t* r, uint8_t* g, uint8_t* b, uint8_t* a);
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TVG_EXPORT Tvg_Result tvg_shape_set_linear_gradient(Tvg_Paint* paint, Tvg_Gradient* grad);
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TVG_EXPORT Tvg_Result tvg_shape_set_radial_gradient(Tvg_Paint* paint, Tvg_Gradient* grad);
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TVG_EXPORT Tvg_Result tvg_shape_get_gradient(const Tvg_Paint* paint, Tvg_Gradient** grad);
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/************************************************************************/
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/* Gradient API */
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/************************************************************************/
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TVG_EXPORT Tvg_Gradient* tvg_linear_gradient_new();
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TVG_EXPORT Tvg_Gradient* tvg_radial_gradient_new();
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TVG_EXPORT Tvg_Result tvg_linear_gradient_set(Tvg_Gradient* grad, float x1, float y1, float x2, float y2);
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TVG_EXPORT Tvg_Result tvg_linear_gradient_get(Tvg_Gradient* grad, float* x1, float* y1, float* x2, float* y2);
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TVG_EXPORT Tvg_Result tvg_radial_gradient_set(Tvg_Gradient* grad, float cx, float cy, float radius);
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TVG_EXPORT Tvg_Result tvg_radial_gradient_get(Tvg_Gradient* grad, float* cx, float* cy, float* radius);
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TVG_EXPORT Tvg_Result tvg_gradient_set_color_stops(Tvg_Gradient* grad, const Tvg_Color_Stop* color_stop, uint32_t cnt);
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TVG_EXPORT Tvg_Result tvg_gradient_get_color_stops(Tvg_Gradient* grad, const Tvg_Color_Stop** color_stop, uint32_t* cnt);
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TVG_EXPORT Tvg_Result tvg_gradient_set_spread(Tvg_Gradient* grad, const Tvg_Stroke_Fill spread);
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TVG_EXPORT Tvg_Result tvg_gradient_get_spread(Tvg_Gradient* grad, Tvg_Stroke_Fill* spread);
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TVG_EXPORT Tvg_Result tvg_gradient_del(Tvg_Gradient* grad);
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/************************************************************************/
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/* Picture API */
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/************************************************************************/
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TVG_EXPORT Tvg_Paint* tvg_picture_new();
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TVG_EXPORT Tvg_Result tvg_picture_load(Tvg_Paint* paint, const char* path);
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TVG_EXPORT Tvg_Result tvg_picture_get_viewbox(const Tvg_Paint* paint, float* x, float* y, float* w, float* h);
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#ifdef __cplusplus
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}
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#endif
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#endif //_THORVG_CAPI_H_
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