70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
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/**
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* @file lv_draw_sw_blend.h
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*
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*/
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#ifndef LV_DRAW_SW_BLEND_H
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#define LV_DRAW_SW_BLEND_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#include "../../misc/lv_color.h"
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#include "../../misc/lv_area.h"
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#include "../../misc/lv_style.h"
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#include "../lv_draw_mask.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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typedef struct {
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const lv_area_t * blend_area; /**< The area with absolute coordinates to draw on `draw_ctx->buf`
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* will be clipped to `draw_ctx->clip_area` */
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const lv_color_t * src_buf; /**< Pointer to an image to blend. If set `fill_color` is ignored */
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lv_color_t color; /**< Fill color*/
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lv_opa_t * mask_buf; /**< NULL if ignored, or an alpha mask to apply on `blend_area`*/
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lv_draw_mask_res_t mask_res; /**< The result of the previous mask operation */
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const lv_area_t * mask_area; /**< The area of `mask_buf` with absolute coordinates*/
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lv_opa_t opa; /**< The overall opacity*/
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lv_blend_mode_t blend_mode; /**< E.g. LV_BLEND_MODE_ADDITIVE*/
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} lv_draw_sw_blend_dsc_t;
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struct _lv_draw_ctx_t;
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* Call the blend function of the `draw_ctx`.
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* @param draw_ctx pointer to a draw context
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* @param dsc pointer to an initialized blend descriptor
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*/
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void lv_draw_sw_blend(struct _lv_draw_ctx_t * draw_ctx, const lv_draw_sw_blend_dsc_t * dsc);
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/**
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* The basic blend function used with software rendering.
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* @param draw_ctx pointer to a draw context
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* @param dsc pointer to an initialized blend descriptor
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*/
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LV_ATTRIBUTE_FAST_MEM void lv_draw_sw_blend_basic(struct _lv_draw_ctx_t * draw_ctx, const lv_draw_sw_blend_dsc_t * dsc);
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/**********************
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* MACROS
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**********************/
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#ifdef __cplusplus
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} /*extern "C"*/
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#endif
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#endif /*LV_DRAW_SW_BLEND_H*/
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