src/modules/engines/buffer/evas_engine.c

   1 #include "evas_common.h"
   2 #include "evas_private.h"
   3 #include "evas_engine.h"
   4 #include "Evas_Engine_Buffer.h"
   5
   6 /* function tables - filled in later (func and parent func) */
   7 static Evas_Func func, pfunc;
   8
   9 /* engine struct data */
  10 typedef struct _Render_Engine Render_Engine;
  11
  12 struct _Render_Engine
  13 {
  14    Tilebuf          *tb;
  15    Outbuf           *ob;
  16    Tilebuf_Rect     *rects;
  17    Evas_Object_List *cur_rect;
  18    int               end : 1;
  19 };
  20
  21 /* prototypes we will use here */
  22 static void *_output_setup(int w, int h, void *dest_buffer, int dest_buffer_row_bytes, int depth_type, int use_color_key, int alpha_threshold, int color_key_r, int color_key_g, int color_key_b, void *(*new_update_region) (int x, int y, int w, int h, int *row_bytes), void (*free_update_region) (int x, int y, int w, int h, void *data));
  23
  24 static void *eng_info(Evas *e);
  25 static void eng_info_free(Evas *e, void *info);
  26 static void eng_setup(Evas *e, void *info);
  27 static void eng_output_free(void *data);
  28 static void eng_output_resize(void *data, int w, int h);
  29 static void eng_output_tile_size_set(void *data, int w, int h);
  30 static void eng_output_redraws_rect_add(void *data, int x, int y, int w, int h);
  31 static void eng_output_redraws_rect_del(void *data, int x, int y, int w, int h);
  32 static void eng_output_redraws_clear(void *data);
  33 static void *eng_output_redraws_next_update_get(void *data, int *x, int *y, int *w, int *h, int *cx, int *cy, int *cw, int *ch);
  34 static void eng_output_redraws_next_update_push(void *data, void *surface, int x, int y, int w, int h);
  35 static void eng_output_flush(void *data);
  36 static void eng_output_idle_flush(void *data);
  37
  38 /* internal engine routines */
  39 static void *
  40 _output_setup(int w,
  41               int h,
  42               void *dest_buffer,
  43               int dest_buffer_row_bytes,
  44               int depth_type,
  45               int use_color_key,
  46               int alpha_threshold,
  47               int color_key_r,
  48               int color_key_g,
  49               int color_key_b,
  50               void *(*new_update_region) (int x, int y, int w, int h, int *row_bytes),
  51               void (*free_update_region) (int x, int y, int w, int h, void *data)
  52               )
  53 {
  54    Render_Engine *re;
  55
  56    re = calloc(1, sizeof(Render_Engine));
  57    /* if we haven't initialized - init (automatic abort if already done) */
  58    evas_common_cpu_init();
  59
  60    evas_common_blend_init();
  61    evas_common_image_init();
  62    evas_common_convert_init();
  63    evas_common_scale_init();
  64    evas_common_rectangle_init();
  65    evas_common_gradient_init();
  66    evas_common_polygon_init();
  67    evas_common_line_init();
  68    evas_common_font_init();
  69    evas_common_draw_init();
  70    evas_common_tilebuf_init();
  71
  72    evas_buffer_outbuf_buf_init();
  73
  74      {
  75         Outbuf_Depth dep;
  76         DATA32 color_key;
  77
  78         dep = OUTBUF_DEPTH_BGR_24BPP_888_888;
  79         if      (depth_type == EVAS_ENGINE_BUFFER_DEPTH_ARGB32)
  80           dep = OUTBUF_DEPTH_ARGB_32BPP_8888_8888;
  81         else if (depth_type == EVAS_ENGINE_BUFFER_DEPTH_RGB32)
  82           dep = OUTBUF_DEPTH_RGB_32BPP_888_8888;
  83         else if (depth_type == EVAS_ENGINE_BUFFER_DEPTH_BGRA32)
  84           dep = OUTBUF_DEPTH_BGRA_32BPP_8888_8888;
  85         else if (depth_type == EVAS_ENGINE_BUFFER_DEPTH_RGB24)
  86           dep = OUTBUF_DEPTH_RGB_24BPP_888_888;
  87         else if (depth_type == EVAS_ENGINE_BUFFER_DEPTH_BGR24)
  88           dep = OUTBUF_DEPTH_BGR_24BPP_888_888;
  89         R_VAL(&color_key) = color_key_r;
  90         G_VAL(&color_key) = color_key_g;
  91         B_VAL(&color_key) = color_key_b;
  92         A_VAL(&color_key) = 0;
  93         re->ob = evas_buffer_outbuf_buf_setup_fb(w,
  94                                                  h,
  95                                                  dep,
  96                                                  dest_buffer,
  97                                                  dest_buffer_row_bytes,
  98                                                  use_color_key,
  99                                                  color_key,
 100                                                  alpha_threshold,
 101                                                  new_update_region,
 102                                                  free_update_region);
 103      }
 104    re->tb = evas_common_tilebuf_new(w, h);
 105    evas_common_tilebuf_set_tile_size(re->tb, TILESIZE, TILESIZE);
 106    return re;
 107 }
 108
 109 /* engine api this module provides */
 110 static void *
 111 eng_info(Evas *e)
 112 {
 113    Evas_Engine_Info_Buffer *info;
 114
 115    info = calloc(1, sizeof(Evas_Engine_Info_Buffer));
 116    if (!info) return NULL;
 117    info->magic.magic = rand();
 118    return info;
 119    e = NULL;
 120 }
 121
 122 static void
 123 eng_info_free(Evas *e, void *info)
 124 {
 125    Evas_Engine_Info_Buffer *in;
 126
 127    in = (Evas_Engine_Info_Buffer *)info;
 128    free(in);
 129 }
 130
 131 static void
 132 eng_setup(Evas *e, void *in)
 133 {
 134    Render_Engine *re;
 135    Evas_Engine_Info_Buffer *info;
 136
 137    info = (Evas_Engine_Info_Buffer *)in;
 138    if (e->engine.data.output)
 139      eng_output_free(e->engine.data.output);
 140    re = _output_setup(e->output.w,
 141                       e->output.h,
 142                       info->info.dest_buffer,
 143                       info->info.dest_buffer_row_bytes,
 144                       info->info.depth_type,
 145                       info->info.use_color_key,
 146                       info->info.alpha_threshold,
 147                       info->info.color_key_r,
 148                       info->info.color_key_g,
 149                       info->info.color_key_b,
 150                       info->info.func.new_update_region,
 151                       info->info.func.free_update_region);
 152    e->engine.data.output = re;
 153    if (!e->engine.data.output) return;
 154    if (!e->engine.data.context)
 155      e->engine.data.context = e->engine.func->context_new(e->engine.data.output);
 156 }
 157
 158 static void
 159 eng_output_free(void *data)
 160 {
 161    Render_Engine *re;
 162
 163    re = (Render_Engine *)data;
 164    evas_buffer_outbuf_buf_free(re->ob);
 165    evas_common_tilebuf_free(re->tb);
 166    if (re->rects) evas_common_tilebuf_free_render_rects(re->rects);
 167    free(re);
 168
 169    evas_common_font_shutdown();
 170    evas_common_image_shutdown();
 171 }
 172
 173 static void
 174 eng_output_resize(void *data, int w, int h)
 175 {
 176    Render_Engine *re;
 177
 178    re = (Render_Engine *)data;
 179      {
 180         int      depth;
 181         void    *dest;
 182         int      dest_row_bytes;
 183         int      alpha_level;
 184         DATA32   color_key;
 185         char     use_color_key;
 186         void * (*new_update_region) (int x, int y, int w, int h, int *row_bytes);
 187         void   (*free_update_region) (int x, int y, int w, int h, void *data);
 188
 189         depth = re->ob->depth;
 190         dest = re->ob->dest;
 191         dest_row_bytes = re->ob->dest_row_bytes;
 192         alpha_level = re->ob->alpha_level;
 193         color_key = re->ob->color_key;
 194         use_color_key = re->ob->use_color_key;
 195         new_update_region = re->ob->func.new_update_region;
 196         free_update_region = re->ob->func.free_update_region;
 197         evas_buffer_outbuf_buf_free(re->ob);
 198         re->ob = evas_buffer_outbuf_buf_setup_fb(w,
 199                                                  h,
 200                                                  depth,
 201                                                  dest,
 202                                                  dest_row_bytes,
 203                                                  use_color_key,
 204                                                  color_key,
 205                                                  alpha_level,
 206                                                  new_update_region,
 207                                                  free_update_region);
 208      }
 209    evas_common_tilebuf_free(re->tb);
 210    re->tb = evas_common_tilebuf_new(w, h);
 211    if (re->tb)
 212      evas_common_tilebuf_set_tile_size(re->tb, TILESIZE, TILESIZE);
 213 }
 214
 215 static void
 216 eng_output_tile_size_set(void *data, int w, int h)
 217 {
 218    Render_Engine *re;
 219
 220    re = (Render_Engine *)data;
 221    evas_common_tilebuf_set_tile_size(re->tb, w, h);
 222 }
 223
 224 static void
 225 eng_output_redraws_rect_add(void *data, int x, int y, int w, int h)
 226 {
 227    Render_Engine *re;
 228
 229    re = (Render_Engine *)data;
 230    evas_common_tilebuf_add_redraw(re->tb, x, y, w, h);
 231 }
 232
 233 static void
 234 eng_output_redraws_rect_del(void *data, int x, int y, int w, int h)
 235 {
 236    Render_Engine *re;
 237
 238    re = (Render_Engine *)data;
 239    evas_common_tilebuf_del_redraw(re->tb, x, y, w, h);
 240 }
 241
 242 static void
 243 eng_output_redraws_clear(void *data)
 244 {
 245    Render_Engine *re;
 246
 247    re = (Render_Engine *)data;
 248    evas_common_tilebuf_clear(re->tb);
 249 }
 250
 251 static void *
 252 eng_output_redraws_next_update_get(void *data, int *x, int *y, int *w, int *h, int *cx, int *cy, int *cw, int *ch)
 253 {
 254    Render_Engine *re;
 255    RGBA_Image *surface;
 256    Tilebuf_Rect *rect;
 257    int ux, uy, uw, uh;
 258
 259    re = (Render_Engine *)data;
 260    if (re->end)
 261      {
 262         re->end = 0;
 263         return NULL;
 264      }
 265    if (!re->rects)
 266      {
 267         re->rects = evas_common_tilebuf_get_render_rects(re->tb);
 268         re->cur_rect = (Evas_Object_List *)re->rects;
 269      }
 270    if (!re->cur_rect) return NULL;
 271    rect = (Tilebuf_Rect *)re->cur_rect;
 272    ux = rect->x; uy = rect->y; uw = rect->w; uh = rect->h;
 273    re->cur_rect = re->cur_rect->next;
 274    if (!re->cur_rect)
 275      {
 276         evas_common_tilebuf_free_render_rects(re->rects);
 277         re->rects = NULL;
 278         re->end = 1;
 279      }
 280
 281    if ((ux + uw) > re->ob->w) uw = re->ob->w - ux;
 282    if ((uy + uh) > re->ob->h) uh = re->ob->h - uy;
 283    if ((uw <= 0) || (uh <= 0)) return NULL;
 284    surface = evas_buffer_outbuf_buf_new_region_for_update(re->ob,
 285                                                           ux, uy, uw, uh,
 286                                                           cx, cy, cw, ch);
 287    *x = ux; *y = uy; *w = uw; *h = uh;
 288    return surface;
 289 }
 290
 291 static void
 292 eng_output_redraws_next_update_push(void *data, void *surface, int x, int y, int w, int h)
 293 {
 294    Render_Engine *re;
 295
 296    re = (Render_Engine *)data;
 297    evas_common_pipe_begin(surface);
 298    evas_common_pipe_flush(surface);
 299    evas_buffer_outbuf_buf_push_updated_region(re->ob, surface, x, y, w, h);
 300    evas_buffer_outbuf_buf_free_region_for_update(re->ob, surface);
 301    evas_common_cpu_end_opt();
 302 }
 303
 304 static void
 305 eng_output_flush(void *data)
 306 {
 307    Render_Engine *re;
 308
 309    re = (Render_Engine *)data;
 310 }
 311
 312 static void
 313 eng_output_idle_flush(void *data)
 314 {
 315    Render_Engine *re;
 316
 317    re = (Render_Engine *)data;
 318 }
 319
 320 /* module advertising code */
 321 EAPI int
 322 module_open(Evas_Module *em)
 323 {
 324    if (!em) return 0;
 325    /* get whatever engine module we inherit from */
 326    if (!_evas_module_engine_inherit(&pfunc, "software_generic")) return 0;
 327    /* store it for later use */
 328    func = pfunc;
 329    /* now to override methods */
 330 #define ORD(f) EVAS_API_OVERRIDE(f, &func, eng_)
 331    ORD(info);
 332    ORD(info_free);
 333    ORD(setup);
 334    ORD(output_free);
 335    ORD(output_resize);
 336    ORD(output_tile_size_set);
 337    ORD(output_redraws_rect_add);
 338    ORD(output_redraws_rect_del);
 339    ORD(output_redraws_clear);
 340    ORD(output_redraws_next_update_get);
 341    ORD(output_redraws_next_update_push);
 342    ORD(output_flush);
 343    ORD(output_idle_flush);
 344    /* now advertise out own api */
 345    em->functions = (void *)(&func);
 346    return 1;
 347 }
 348
 349 EAPI void
 350 module_close(void)
 351 {
 352 }
 353
 354 EAPI Evas_Module_Api evas_modapi =
 355 {
 356    EVAS_MODULE_API_VERSION,
 357      EVAS_MODULE_TYPE_ENGINE,
 358      "buffer",
 359      "none"
 360 };