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add an engine info field (4 bits) for swap mode :) 

SVN revision: 77128
This commit is contained in:
Carsten Haitzler 2012-09-27 06:56:41 +00:00
parent 0951e8a9d1
commit 17cfe59433
2 changed files with 31 additions and 1 deletions
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13
legacy/evas/src/modules/engines/gl_x11/Evas_Engine_GL_X11.h
View File

@ -5,6 +5,18 @@
typedef struct _Evas_Engine_Info_GL_X11 Evas_Engine_Info_GL_X11;
/* have this feature */
#define EVAS_ENGINE_GL_X11_SWAP_MODE_EXISTS 1
typedef enum _Evas_Engine_Info_GL_X11_Swap_Mode
{
EVAS_ENGINE_GL_X11_SWAP_MODE_AUTO = 0,
EVAS_ENGINE_GL_X11_SWAP_MODE_FULL = 1,
EVAS_ENGINE_GL_X11_SWAP_MODE_COPY = 2,
EVAS_ENGINE_GL_X11_SWAP_MODE_DOUBLE = 3,
EVAS_ENGINE_GL_X11_SWAP_MODE_TRIPLE = 4
} Evas_Engine_Info_GL_X11_Swap_Mode;
struct _Evas_Engine_Info_GL_X11
{
/* PRIVATE - don't mess with this baby or evas will poke its tongue out */
@ -42,5 +54,6 @@ struct _Evas_Engine_Info_GL_X11
unsigned char vsync : 1; // does nothing right now
unsigned char indirect : 1; // use indirect rendering
unsigned char swap_mode : 4; // what swap mode to assume
};
#endif

19
legacy/evas/src/modules/engines/gl_x11/evas_engine.c
View File

@ -782,8 +782,25 @@ eng_setup(Evas *e, void *in)
// copy (though using those explicitly is more efficient). so let's play with
// triple buffer mdoe as a default and see.
// re->mode = MODE_TRIPLE;
// XXX: note - the abvoe seems to break on some older intel chipsets and
// XXX: note - the above seems to break on some older intel chipsets and
// drivers. it seems we CANT depend on backbuffer staying around. bugger!
switch (info->swap_mode)
{
case EVAS_ENGINE_GL_X11_SWAP_MODE_FULL:
re->mode = MODE_FULL;
break;
case EVAS_ENGINE_GL_X11_SWAP_MODE_COPY:
re->mode = MODE_COPY;
break;
case EVAS_ENGINE_GL_X11_SWAP_MODE_DOUBLE:
re->mode = MODE_DOUBLE;
break;
case EVAS_ENGINE_GL_X11_SWAP_MODE_TRIPLE:
re->mode = MODE_TRIPLE;
break;
default:
break;
}
}
if (!re->win)
{