1 /**
2 * @file lv_draw_sdl.c
3 *
4 */
5
6 /*********************
7 * INCLUDES
8 *********************/
9
10
11 #include "../../lv_conf_internal.h"
12
13 #if LV_USE_GPU_SDL
14
15 #include "lv_draw_sdl.h"
16 #include "lv_draw_sdl_utils.h"
17 #include "lv_draw_sdl_texture_cache.h"
18 #include "lv_draw_sdl_layer.h"
19
20 /*********************
21 * DEFINES
22 *********************/
23 void lv_draw_sdl_draw_rect(lv_draw_ctx_t * draw_ctx, const lv_draw_rect_dsc_t * dsc, const lv_area_t * coords);
24
25 lv_res_t lv_draw_sdl_img_core(lv_draw_ctx_t * draw_ctx, const lv_draw_img_dsc_t * draw_dsc,
26 const lv_area_t * coords, const void * src);
27
28 void lv_draw_sdl_draw_letter(lv_draw_ctx_t * draw_ctx, const lv_draw_label_dsc_t * dsc, const lv_point_t * pos_p,
29 uint32_t letter);
30
31 void lv_draw_sdl_draw_line(lv_draw_ctx_t * draw_ctx, const lv_draw_line_dsc_t * dsc, const lv_point_t * point1,
32 const lv_point_t * point2);
33
34 void lv_draw_sdl_draw_arc(lv_draw_ctx_t * draw_ctx, const lv_draw_arc_dsc_t * dsc, const lv_point_t * center,
35 uint16_t radius, uint16_t start_angle, uint16_t end_angle);
36
37 void lv_draw_sdl_polygon(lv_draw_ctx_t * draw_ctx, const lv_draw_rect_dsc_t * draw_dsc, const lv_point_t * points,
38 uint16_t point_cnt);
39
40 void lv_draw_sdl_draw_bg(lv_draw_ctx_t * draw_ctx, const lv_draw_rect_dsc_t * dsc, const lv_area_t * coords);
41
42 /**********************
43 * TYPEDEFS
44 **********************/
45
46 /**********************
47 * STATIC PROTOTYPES
48 **********************/
49
50 /**********************
51 * STATIC VARIABLES
52 **********************/
53
54 /**********************
55 * MACROS
56 **********************/
57
58 /**********************
59 * GLOBAL FUNCTIONS
60 **********************/
61
lv_draw_sdl_init_ctx(lv_disp_drv_t * disp_drv,lv_draw_ctx_t * draw_ctx)62 void lv_draw_sdl_init_ctx(lv_disp_drv_t * disp_drv, lv_draw_ctx_t * draw_ctx)
63 {
64 _lv_draw_sdl_utils_init();
65 lv_memset_00(draw_ctx, sizeof(lv_draw_sdl_ctx_t));
66 draw_ctx->draw_rect = lv_draw_sdl_draw_rect;
67 draw_ctx->draw_img = lv_draw_sdl_img_core;
68 draw_ctx->draw_letter = lv_draw_sdl_draw_letter;
69 draw_ctx->draw_line = lv_draw_sdl_draw_line;
70 draw_ctx->draw_arc = lv_draw_sdl_draw_arc;
71 draw_ctx->draw_polygon = lv_draw_sdl_polygon;
72 draw_ctx->draw_bg = lv_draw_sdl_draw_bg;
73 draw_ctx->layer_init = lv_draw_sdl_layer_init;
74 draw_ctx->layer_blend = lv_draw_sdl_layer_blend;
75 draw_ctx->layer_destroy = lv_draw_sdl_layer_destroy;
76 draw_ctx->layer_instance_size = sizeof(lv_draw_sdl_layer_ctx_t);
77 lv_draw_sdl_ctx_t * draw_ctx_sdl = (lv_draw_sdl_ctx_t *) draw_ctx;
78 draw_ctx_sdl->renderer = ((lv_draw_sdl_drv_param_t *) disp_drv->user_data)->renderer;
79 draw_ctx_sdl->internals = lv_mem_alloc(sizeof(lv_draw_sdl_context_internals_t));
80 lv_memset_00(draw_ctx_sdl->internals, sizeof(lv_draw_sdl_context_internals_t));
81 lv_draw_sdl_texture_cache_init(draw_ctx_sdl);
82 }
83
lv_draw_sdl_deinit_ctx(lv_disp_drv_t * disp_drv,lv_draw_ctx_t * draw_ctx)84 void lv_draw_sdl_deinit_ctx(lv_disp_drv_t * disp_drv, lv_draw_ctx_t * draw_ctx)
85 {
86 lv_draw_sdl_ctx_t * draw_ctx_sdl = (lv_draw_sdl_ctx_t *) draw_ctx;
87 lv_draw_sdl_texture_cache_deinit(draw_ctx_sdl);
88 lv_mem_free(draw_ctx_sdl->internals);
89 _lv_draw_sdl_utils_deinit();
90 }
91
lv_draw_sdl_create_screen_texture(SDL_Renderer * renderer,lv_coord_t hor,lv_coord_t ver)92 SDL_Texture * lv_draw_sdl_create_screen_texture(SDL_Renderer * renderer, lv_coord_t hor, lv_coord_t ver)
93 {
94 SDL_Texture * texture = SDL_CreateTexture(renderer, LV_DRAW_SDL_TEXTURE_FORMAT, SDL_TEXTUREACCESS_TARGET, hor, ver);
95 SDL_SetTextureBlendMode(texture, SDL_BLENDMODE_BLEND);
96 return texture;
97 }
98
99 /**********************
100 * STATIC FUNCTIONS
101 **********************/
102
103 #endif /*LV_USE_GPU_SDL*/
104
