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#include "evas_common.h"
#include "evas_engine.h"
static int _x_err = 0;
int
evas_software_16_x11_x_can_do_shm(Display *d)
{
static Display *cached_d = NULL;
static int cached_result = 0;
if (d == cached_d) return cached_result;
cached_d = d;
if (XShmQueryExtension(d))
{
X_Output_Buffer *xob;
xob = evas_software_16_x11_x_output_buffer_new
(d, DefaultVisual(d, DefaultScreen(d)),
DefaultDepth(d, DefaultScreen(d)), 16, 16, 2, NULL);
if (!xob)
{
cached_result = 0;
return 0;
}
evas_software_16_x11_x_output_buffer_free(xob, 1);
cached_result = 1;
return 1;
}
cached_result = 0;
return 0;
}
static void
x_output_tmp_x_err(Display * d __UNUSED__, XErrorEvent * ev __UNUSED__)
{
_x_err = 1;
return;
}
X_Output_Buffer *
evas_software_16_x11_x_output_buffer_new(Display *d, Visual *v, int depth, int w, int h, int try_shm, void *data)
{
X_Output_Buffer *xob;
xob = calloc(1, sizeof(X_Output_Buffer));
if (!xob) return NULL;
xob->display = d;
xob->xim = NULL;
xob->shm_info = NULL;
if (try_shm > 0)
{
xob->shm_info = malloc(sizeof(XShmSegmentInfo));
if (xob->shm_info)
{
xob->xim = XShmCreateImage(d, v, depth, ZPixmap, NULL,
xob->shm_info, w, h);
if (xob->xim)
{
xob->shm_info->shmid = shmget(IPC_PRIVATE,
xob->xim->bytes_per_line *
xob->xim->height,
IPC_CREAT | 0777);
if (xob->shm_info->shmid >= 0)
{
xob->shm_info->readOnly = False;
xob->shm_info->shmaddr = xob->xim->data =
shmat(xob->shm_info->shmid, 0, 0);
if (xob->shm_info->shmaddr)
{
XErrorHandler ph;
XSync(d, False);
_x_err = 0;
ph = XSetErrorHandler((XErrorHandler)
x_output_tmp_x_err);
XShmAttach(d, xob->shm_info);
XSync(d, False);
XSetErrorHandler((XErrorHandler)ph);
if (!_x_err)
{
xob->im = (Soft16_Image *) evas_cache_image_data(evas_common_soft16_image_cache_get(), w, h, (DATA32 *) xob->xim->data, 0, EVAS_COLORSPACE_RGB565_A5P);
if (xob->im)
xob->im->stride = xob->xim->bytes_per_line / sizeof(DATA16);
return xob;
}
}
shmdt(xob->shm_info->shmaddr);
shmctl(xob->shm_info->shmid, IPC_RMID, 0);
}
if (xob->xim) XDestroyImage(xob->xim);
xob->xim = NULL;
}
if (xob->shm_info) free(xob->shm_info);
xob->shm_info = NULL;
}
}
if (try_shm > 1) return NULL;
xob->xim = XCreateImage(d, v, depth, ZPixmap, 0, data, w, h, 32, 0);
if (!xob->xim)
{
free(xob);
return NULL;
}
xob->data = data;
if (!xob->xim->data)
{
xob->xim->data = malloc(xob->xim->bytes_per_line * xob->xim->height);
if (!xob->xim->data)
{
XDestroyImage(xob->xim);
free(xob);
return NULL;
}
}
if (xob->im)
evas_cache_image_drop(&xob->im->cache_entry);
xob->im = (Soft16_Image *) evas_cache_image_data(evas_common_soft16_image_cache_get(), w, h, (DATA32 *) xob->xim->data, 0, EVAS_COLORSPACE_RGB565_A5P);
if (xob->im)
xob->im->stride = xob->xim->bytes_per_line / sizeof(DATA16);
return xob;
}
void
evas_software_16_x11_x_output_buffer_free(X_Output_Buffer *xob, int sync)
{
if (xob->shm_info)
{
if (sync) XSync(xob->display, False);
XShmDetach(xob->display, xob->shm_info);
XDestroyImage(xob->xim);
shmdt(xob->shm_info->shmaddr);
shmctl(xob->shm_info->shmid, IPC_RMID, 0);
free(xob->shm_info);
}
else
{
if (xob->data) xob->xim->data = NULL;
XDestroyImage(xob->xim);
}
free(xob);
}
void
evas_software_16_x11_x_output_buffer_paste(X_Output_Buffer *xob, Drawable d, GC gc, int x, int y, int w, int h, int sync)
{
if (xob->shm_info)
{
XShmPutImage(xob->display, d, gc, xob->xim, 0, 0, x, y, w, h, False);
if (sync) XSync(xob->display, False);
}
else
XPutImage(xob->display, d, gc, xob->xim, 0, 0, x, y, w, h);
}
DATA8 *
evas_software_16_x11_x_output_buffer_data(X_Output_Buffer *xob, int *bytes_per_line_ret)
{
if (bytes_per_line_ret) *bytes_per_line_ret = xob->xim->bytes_per_line;
return (DATA8*) xob->xim->data;
}
int
evas_software_16_x11_x_output_buffer_depth(X_Output_Buffer *xob)
{
return xob->xim->bits_per_pixel;
}
int
evas_software_16_x11_x_output_buffer_byte_order(X_Output_Buffer *xob)
{
return xob->xim->byte_order;
}
int
evas_software_16_x11_x_output_buffer_bit_order(X_Output_Buffer *xob)
{
return xob->xim->bitmap_bit_order;
}
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