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efl/legacy/evas/src/modules/engines/buffer/evas_engine.c

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#include "evas_common.h"
#include "evas_private.h"
#include "evas_engine.h"
#include "Evas_Engine_Buffer.h"
/* domain for eina_log */
/* the log macros are defined in evas_common.h */
/* theirs names are EVAS_ERR, EVAS_DBG, EVAS_CRIT, EVAS_WRN and EVAS_INF */
/* although we can use the EVAS_ERROR, etc... macros it will not work
when the -fvisibility=hidden option is passed to gcc */
int _evas_engine_buffer_log_dom = -1;
/* function tables - filled in later (func and parent func) */
static Evas_Func func, pfunc;
/* engine struct data */
typedef struct _Render_Engine Render_Engine;
struct _Render_Engine
{
Tilebuf *tb;
Outbuf *ob;
Tilebuf_Rect *rects;
Eina_Inlist *cur_rect;
Eina_Inarray previous_rects;
int end : 1;
};
/* prototypes we will use here */
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), void *(*switch_buffer) (void *data, void *dest_buffer), void *switch_data);
static void *eng_info(Evas *e __UNUSED__);
static void eng_info_free(Evas *e __UNUSED__, void *info);
static int eng_setup(Evas *e, void *info);
static void eng_output_free(void *data);
static void eng_output_resize(void *data, int w, int h);
static void eng_output_tile_size_set(void *data, int w, int h);
static void eng_output_redraws_rect_add(void *data, int x, int y, int w, int h);
static void eng_output_redraws_rect_del(void *data, int x, int y, int w, int h);
static void eng_output_redraws_clear(void *data);
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);
static void eng_output_redraws_next_update_push(void *data, void *surface, int x, int y, int w, int h);
static void eng_output_flush(void *data);
static void eng_output_idle_flush(void *data);
/* internal engine routines */
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),
void *(*switch_buffer) (void *data, void *dest_buffer),
void *switch_data
)
{
Render_Engine *re;
re = calloc(1, sizeof(Render_Engine));
if (!re)
return NULL;
/* if we haven't initialized - init (automatic abort if already done) */
evas_common_cpu_init();
evas_common_blend_init();
evas_common_image_init();
evas_common_convert_init();
evas_common_scale_init();
evas_common_rectangle_init();
evas_common_polygon_init();
evas_common_line_init();
evas_common_font_init();
evas_common_draw_init();
evas_common_tilebuf_init();
evas_buffer_outbuf_buf_init();
{
Outbuf_Depth dep;
DATA32 color_key = 0;
dep = OUTBUF_DEPTH_BGR_24BPP_888_888;
if (depth_type == EVAS_ENGINE_BUFFER_DEPTH_ARGB32)
dep = OUTBUF_DEPTH_ARGB_32BPP_8888_8888;
else if (depth_type == EVAS_ENGINE_BUFFER_DEPTH_RGB32)
dep = OUTBUF_DEPTH_RGB_32BPP_888_8888;
else if (depth_type == EVAS_ENGINE_BUFFER_DEPTH_BGRA32)
dep = OUTBUF_DEPTH_BGRA_32BPP_8888_8888;
else if (depth_type == EVAS_ENGINE_BUFFER_DEPTH_RGB24)
dep = OUTBUF_DEPTH_RGB_24BPP_888_888;
else if (depth_type == EVAS_ENGINE_BUFFER_DEPTH_BGR24)
dep = OUTBUF_DEPTH_BGR_24BPP_888_888;
R_VAL(&color_key) = color_key_r;
G_VAL(&color_key) = color_key_g;
B_VAL(&color_key) = color_key_b;
A_VAL(&color_key) = 0;
re->ob = evas_buffer_outbuf_buf_setup_fb(w,
h,
dep,
dest_buffer,
dest_buffer_row_bytes,
use_color_key,
color_key,
alpha_threshold,
new_update_region,
free_update_region,
switch_buffer,
switch_data);
}
re->tb = evas_common_tilebuf_new(w, h);
evas_common_tilebuf_set_tile_size(re->tb, TILESIZE, TILESIZE);
eina_inarray_step_set(&re->previous_rects, sizeof (Eina_Inarray), sizeof (Eina_Rectangle), 8);
return re;
}
/* engine api this module provides */
static void *
eng_info(Evas *e __UNUSED__)
{
Evas_Engine_Info_Buffer *info;
info = calloc(1, sizeof(Evas_Engine_Info_Buffer));
if (!info) return NULL;
info->magic.magic = rand();
info->render_mode = EVAS_RENDER_MODE_BLOCKING;
return info;
}
static void
eng_info_free(Evas *e __UNUSED__, void *info)
{
Evas_Engine_Info_Buffer *in;
in = (Evas_Engine_Info_Buffer *)info;
free(in);
}
static int
eng_setup(Evas *e, void *in)
{
Render_Engine *re;
Evas_Engine_Info_Buffer *info;
info = (Evas_Engine_Info_Buffer *)in;
re = _output_setup(e->output.w,
e->output.h,
info->info.dest_buffer,
info->info.dest_buffer_row_bytes,
info->info.depth_type,
info->info.use_color_key,
info->info.alpha_threshold,
info->info.color_key_r,
info->info.color_key_g,
info->info.color_key_b,
info->info.func.new_update_region,
info->info.func.free_update_region,
info->info.func.switch_buffer,
info->info.switch_data);
if (e->engine.data.output)
eng_output_free(e->engine.data.output);
e->engine.data.output = re;
if (!e->engine.data.output) return 0;
if (!e->engine.data.context)
e->engine.data.context = e->engine.func->context_new(e->engine.data.output);
return 1;
}
static void
eng_output_free(void *data)
{
Render_Engine *re;
re = (Render_Engine *)data;
evas_buffer_outbuf_buf_free(re->ob);
evas_common_tilebuf_free(re->tb);
if (re->rects) evas_common_tilebuf_free_render_rects(re->rects);
free(re);
evas_common_font_shutdown();
evas_common_image_shutdown();
}
static void
eng_output_resize(void *data, int w, int h)
{
Render_Engine *re;
re = (Render_Engine *)data;
{
int depth;
void *dest;
int dest_row_bytes;
int alpha_level;
DATA32 color_key;
char use_color_key;
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);
void * (*switch_buffer) (void *switch_data, void *dest);
void *switch_data;
depth = re->ob->depth;
dest = re->ob->dest;
dest_row_bytes = re->ob->dest_row_bytes;
alpha_level = re->ob->alpha_level;
color_key = re->ob->color_key;
use_color_key = re->ob->use_color_key;
new_update_region = re->ob->func.new_update_region;
free_update_region = re->ob->func.free_update_region;
switch_buffer = re->ob->func.switch_buffer;
switch_data = re->ob->switch_data;
evas_buffer_outbuf_buf_free(re->ob);
re->ob = evas_buffer_outbuf_buf_setup_fb(w,
h,
depth,
dest,
dest_row_bytes,
use_color_key,
color_key,
alpha_level,
new_update_region,
free_update_region,
switch_buffer,
switch_data);
}
evas_common_tilebuf_free(re->tb);
re->tb = evas_common_tilebuf_new(w, h);
if (re->tb)
evas_common_tilebuf_set_tile_size(re->tb, TILESIZE, TILESIZE);
}
static void
eng_output_tile_size_set(void *data, int w, int h)
{
Render_Engine *re;
re = (Render_Engine *)data;
evas_common_tilebuf_set_tile_size(re->tb, w, h);
}
static void
eng_output_redraws_rect_add(void *data, int x, int y, int w, int h)
{
Render_Engine *re;
re = (Render_Engine *)data;
evas_common_tilebuf_add_redraw(re->tb, x, y, w, h);
}
static void
eng_output_redraws_rect_del(void *data, int x, int y, int w, int h)
{
Render_Engine *re;
re = (Render_Engine *)data;
evas_common_tilebuf_del_redraw(re->tb, x, y, w, h);
}
static void
eng_output_redraws_clear(void *data)
{
Render_Engine *re;
re = (Render_Engine *)data;
evas_common_tilebuf_clear(re->tb);
}
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)
{
Render_Engine *re;
RGBA_Image *surface;
Tilebuf_Rect *rect;
int ux, uy, uw, uh;
re = (Render_Engine *)data;
if (re->end)
{
re->end = 0;
return NULL;
}
if (!re->rects)
{
re->rects = evas_common_tilebuf_get_render_rects(re->tb);
/* handle double buffering */
if (re->ob->func.switch_buffer)
{
Eina_Rectangle *pushing;
if (re->ob->first_frame && !re->previous_rects.len)
{
evas_common_tilebuf_add_redraw(re->tb, 0, 0, re->ob->w, re->ob->h);
re->ob->first_frame = 0;
}
/* push previous frame */
EINA_INARRAY_FOREACH(&re->previous_rects, pushing)
evas_common_tilebuf_add_redraw(re->tb, pushing->x, pushing->y, pushing->w, pushing->h);
eina_inarray_flush(&re->previous_rects);
/* save current list of damage */
EINA_INLIST_FOREACH(re->rects, rect)
{
Eina_Rectangle local;
EINA_RECTANGLE_SET(&local, rect->x, rect->y, rect->w, rect->h);
eina_inarray_push(&re->previous_rects, &local);
}
/* and regenerate the damage list by tacking into account the damage over two frames */
evas_common_tilebuf_free_render_rects(re->rects);
re->rects = evas_common_tilebuf_get_render_rects(re->tb);
}
re->cur_rect = EINA_INLIST_GET(re->rects);
}
if (!re->cur_rect) return NULL;
rect = (Tilebuf_Rect *)re->cur_rect;
ux = rect->x; uy = rect->y; uw = rect->w; uh = rect->h;
re->cur_rect = re->cur_rect->next;
if (!re->cur_rect)
{
evas_common_tilebuf_free_render_rects(re->rects);
re->rects = NULL;
re->end = 1;
}
if ((ux + uw) > re->ob->w) uw = re->ob->w - ux;
if ((uy + uh) > re->ob->h) uh = re->ob->h - uy;
if ((uw <= 0) || (uh <= 0)) return NULL;
surface = evas_buffer_outbuf_buf_new_region_for_update(re->ob,
ux, uy, uw, uh,
cx, cy, cw, ch);
*x = ux; *y = uy; *w = uw; *h = uh;
return surface;
}
static void
eng_output_redraws_next_update_push(void *data, void *surface, int x, int y, int w, int h)
{
Render_Engine *re;
re = (Render_Engine *)data;
#ifdef BUILD_PIPE_RENDER
evas_common_pipe_map_begin(surface);
#endif
evas_buffer_outbuf_buf_push_updated_region(re->ob, surface, x, y, w, h);
evas_buffer_outbuf_buf_free_region_for_update(re->ob, surface);
evas_common_cpu_end_opt();
}
static void
eng_output_flush(void *data)
{
Render_Engine *re = (Render_Engine *)data;
evas_buffer_outbuf_buf_switch_buffer(re->ob);
}
static void
eng_output_idle_flush(void *data __UNUSED__)
{
}
static Eina_Bool
eng_canvas_alpha_get(void *data, void *context __UNUSED__)
{
Render_Engine *re;
re = (Render_Engine *)data;
if (re->ob->priv.back_buf)
return re->ob->priv.back_buf->cache_entry.flags.alpha;
return EINA_TRUE;
}
/* module advertising code */
static int
module_open(Evas_Module *em)
{
if (!em) return 0;
/* get whatever engine module we inherit from */
if (!_evas_module_engine_inherit(&pfunc, "software_generic")) return 0;
_evas_engine_buffer_log_dom = eina_log_domain_register
("evas-buffer", EINA_COLOR_BLUE);
if (_evas_engine_buffer_log_dom < 0)
{
EINA_LOG_ERR("Can not create a module log domain.");
return 0;
}
/* store it for later use */
func = pfunc;
/* now to override methods */
#define ORD(f) EVAS_API_OVERRIDE(f, &func, eng_)
ORD(info);
ORD(info_free);
ORD(setup);
ORD(canvas_alpha_get);
ORD(output_free);
ORD(output_resize);
ORD(output_tile_size_set);
ORD(output_redraws_rect_add);
ORD(output_redraws_rect_del);
ORD(output_redraws_clear);
ORD(output_redraws_next_update_get);
ORD(output_redraws_next_update_push);
ORD(output_flush);
ORD(output_idle_flush);
/* now advertise out own api */
em->functions = (void *)(&func);
return 1;
}
static void
module_close(Evas_Module *em __UNUSED__)
{
eina_log_domain_unregister(_evas_engine_buffer_log_dom);
}
static Evas_Module_Api evas_modapi =
{
EVAS_MODULE_API_VERSION,
"buffer",
"none",
{
module_open,
module_close
}
};
EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_ENGINE, engine, buffer);
#ifndef EVAS_STATIC_BUILD_BUFFER
EVAS_EINA_MODULE_DEFINE(engine, buffer);
#endif
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