+/*
+winnie - an experimental window system
+
+Copyright (C) 2013 Eleni Maria Stea
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Author: Eleni Maria Stea <elene.mst@gmail.com>
+*/
+
#ifdef WINNIE_FBDEV
#include <errno.h>
#include <limits.h>
#include "gfx.h"
#include "shalloc.h"
+#include "winnie.h"
#define FRAMEBUFFER_SIZE(xsz, ysz, bpp) ((xsz) * (ysz) * (bpp) / CHAR_BIT)
static unsigned char *framebuffer;
static int dev_fd;
+static int rgb_order[3];
struct Graphics {
Rect screen_rect;
return false;
}
+ get_subsys()->graphics_offset = (int)((char*)gfx - (char*)get_pool());
+
dev_fd = -1;
if((dev_fd = open("/dev/fb0", O_RDWR)) == -1) {
gfx->screen_rect.height = sinfo.yres_virtual;
gfx->color_depth = sinfo.bits_per_pixel;
+ rgb_order[0] = sinfo.red.offset / 8;
+ rgb_order[1] = sinfo.green.offset / 8;
+ rgb_order[2] = sinfo.blue.offset / 8;
+
set_clipping_rect(gfx->screen_rect);
int sz = FRAMEBUFFER_SIZE(gfx->screen_rect.width, gfx->screen_rect.height, gfx->color_depth);
void destroy_gfx()
{
clear_screen(0, 0, 0);
- gfx_update();
+ gfx_update(gfx->screen_rect);
if(dev_fd != -1) {
close(dev_fd);
}
}
-void gfx_update()
+void gfx_update(const Rect &upd_rect)
{
- memcpy(framebuffer, gfx->pixmap->pixels, gfx->pixmap->width * gfx->pixmap->height * (gfx->color_depth / 8));
+ Rect rect = rect_intersection(upd_rect, gfx->screen_rect);
+ unsigned char *sptr = gfx->pixmap->pixels + (rect.y * gfx->screen_rect.width + rect.x) * 4;
+ unsigned char *dptr = framebuffer + (rect.y * gfx->screen_rect.width + rect.x) * 4;
+
+ for(int i=0; i<rect.height; i++) {
+ memcpy(dptr, sptr, rect.width * 4);
+ sptr += gfx->screen_rect.width * 4;
+ dptr += gfx->screen_rect.width * 4;
+ }
}
void wait_vsync()
}
}
+void get_rgb_order(int *r, int *g, int *b)
+{
+ *r = rgb_order[0];
+ *g = rgb_order[1];
+ *b = rgb_order[2];
+}
+
#endif // WINNIE_FBDEV