static int get_framebuffer(GGLSurface *fb)
{
int fd, index = 0;
void *bits;
fd = open("/dev/graphics/fb0", O_RDWR);
while (fd < 0 && index < 30) {
usleep(1000);
fd = open("/dev/graphics/fb0", O_RDWR);
index++;
}
if (fd < 0) {
perror("cannot open fb0\n");
return -1;
}
if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) {
perror("failed to get fb0 info");
close(fd);
return -1;
}
#if 0
fprintf(stderr, "Pixel format: %dx%d @ %dbpp\n", vi.xres, vi.yres, vi.bits_per_pixel);
vi.bits_per_pixel = PIXEL_SIZE * 8;
if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_BGRA_8888) {
fprintf(stderr, "Pixel format: BGRA_8888\n");
if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
vi.red.offset = 8;
vi.red.length = 8;
vi.green.offset = 16;
vi.green.length = 8;
vi.blue.offset = 24;
vi.blue.length = 8;
vi.transp.offset = 0;
vi.transp.length = 8;
} else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGBX_8888) {
fprintf(stderr, "Pixel format: RGBX_8888\n");
if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
vi.red.offset = 24;
vi.red.length = 8;
vi.green.offset = 16;
vi.green.length = 8;
vi.blue.offset = 8;
vi.blue.length = 8;
vi.transp.offset = 0;
vi.transp.length = 8;
} else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGB_565) {
#ifdef RECOVERY_RGB_565
fprintf(stderr, "Pixel format: RGB_565\n");
vi.blue.offset = 0;
vi.green.offset = 5;
vi.red.offset = 11;
#else
fprintf(stderr, "Pixel format: BGR_565\n");
vi.blue.offset = 11;
vi.green.offset = 5;
vi.red.offset = 0;
#endif
if (PIXEL_SIZE != 2) fprintf(stderr, "E: Pixel Size mismatch!\n");
vi.blue.length = 5;
vi.green.length = 6;
vi.red.length = 5;
vi.blue.msb_right = 0;
vi.green.msb_right = 0;
vi.red.msb_right = 0;
vi.transp.offset = 0;
vi.transp.length = 0;
}
else
{
perror("unknown pixel format");
close(fd);
return -1;
}
#endif
vi.vmode = FB_VMODE_NONINTERLACED;
vi.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE;
if (ioctl(fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
perror("failed to put fb0 info");
close(fd);
return -1;
}
if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
perror("failed to get fb0 info");
close(fd);
return -1;
}
#ifdef MSM_BSP
has_overlay = target_has_overlay(fi.id);
if (isTargetMdp5())
setDisplaySplit();
#else
has_overlay = false;
#endif
if (!has_overlay) {
printf("Not using qualcomm overlay, '%s'\n", fi.id);
bits = mmap(0, fi.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (bits == MAP_FAILED) {
perror("failed to mmap framebuffer");
close(fd);
return -1;
}
} else {
printf("Using qualcomm overlay\n");
}
#ifdef RECOVERY_GRAPHICS_USE_LINELENGTH
vi.xres_virtual = fi.line_length / PIXEL_SIZE;
#endif
fb->version = sizeof(*fb);
fb->width = vi.xres;
fb->height = vi.yres;
#ifdef BOARD_HAS_JANKY_BACKBUFFER
printf("setting JANKY BACKBUFFER\n");
fb->stride = fi.line_length/2;
#else
fb->stride = vi.xres_virtual;
#endif
fb->format = PIXEL_FORMAT;
if (!has_overlay) {
fb->data = bits;
memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE);
}
fb++;
#ifndef TW_DISABLE_DOUBLE_BUFFERING
/* check if we can use double buffering */
if (vi.yres * fi.line_length * 2 > fi.smem_len)
#else
printf("TW_DISABLE_DOUBLE_BUFFERING := true\n");
#endif
return fd;
double_buffering = 1;
fb->version = sizeof(*fb);
fb->width = vi.xres;
fb->height = vi.yres;
#ifdef BOARD_HAS_JANKY_BACKBUFFER
fb->stride = fi.line_length/2;
fb->data = (GGLubyte*) (((unsigned long) bits) + vi.yres * fi.line_length);
#else
fb->stride = vi.xres_virtual;
fb->data = (GGLubyte*) (((unsigned long) bits) + vi.yres * fb->stride * PIXEL_SIZE);
#endif
fb->format = PIXEL_FORMAT;
if (!has_overlay) {
memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE);
}
#ifdef PRINT_SCREENINFO
print_fb_var_screeninfo();
#endif
return fd;
}
static int get_framebuffer(GGLSurface *fb)
{
int fd;
void *bits;
fd = open("/dev/graphics/fb0", O_RDWR);
if (fd < 0) {
perror("cannot open fb0");
return -1;
}
if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) {
perror("failed to get fb0 info");
close(fd);
return -1;
}
fprintf(stderr, "Pixel format: %dx%d @ %dbpp\n", vi.xres, vi.yres, vi.bits_per_pixel);
vi.bits_per_pixel = PIXEL_SIZE * 8;
if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_BGRA_8888) {
fprintf(stderr, "Pixel format: BGRA_8888\n");
if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
vi.red.offset = 8;
vi.red.length = 8;
vi.green.offset = 16;
vi.green.length = 8;
vi.blue.offset = 24;
vi.blue.length = 8;
vi.transp.offset = 0;
vi.transp.length = 8;
} else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGBX_8888) {
fprintf(stderr, "Pixel format: RGBX_8888\n");
if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
vi.red.offset = 24;
vi.red.length = 8;
vi.green.offset = 16;
vi.green.length = 8;
vi.blue.offset = 8;
vi.blue.length = 8;
vi.transp.offset = 0;
vi.transp.length = 8;
} else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGB_565) {
#ifdef RECOVERY_RGB_565
fprintf(stderr, "Pixel format: RGB_565\n");
vi.blue.offset = 0;
vi.green.offset = 5;
vi.red.offset = 11;
#else
fprintf(stderr, "Pixel format: BGR_565\n");
vi.blue.offset = 11;
vi.green.offset = 5;
vi.red.offset = 0;
#endif
if (PIXEL_SIZE != 2) fprintf(stderr, "E: Pixel Size mismatch!\n");
vi.blue.length = 5;
vi.green.length = 6;
vi.red.length = 5;
vi.blue.msb_right = 0;
vi.green.msb_right = 0;
vi.red.msb_right = 0;
vi.transp.offset = 0;
vi.transp.length = 0;
}
else
{
perror("unknown pixel format");
close(fd);
return -1;
}
vi.vmode = FB_VMODE_NONINTERLACED;
vi.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE;
if (ioctl(fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
perror("failed to put fb0 info");
close(fd);
return -1;
}
if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
perror("failed to get fb0 info");
close(fd);
return -1;
}
bits = mmap(0, fi.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (bits == MAP_FAILED) {
perror("failed to mmap framebuffer");
close(fd);
return -1;
}
#ifdef RECOVERY_GRAPHICS_USE_LINELENGTH
vi.xres_virtual = fi.line_length / PIXEL_SIZE;
#endif
fb->version = sizeof(*fb);
fb->width = vi.xres;
fb->height = vi.yres;
#ifdef BOARD_HAS_JANKY_BACKBUFFER
printf("setting JANKY BACKBUFFER\n");
fb->stride = fi.line_length/2;
#else
fb->stride = vi.xres_virtual;
#endif
fb->data = bits;
fb->format = PIXEL_FORMAT;
memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE);
fb++;
/* check if we can use double buffering */
if (vi.yres * fi.line_length * 2 > fi.smem_len)
return fd;
double_buffering = 1;
fb->version = sizeof(*fb);
fb->width = vi.xres;
fb->height = vi.yres;
#ifdef BOARD_HAS_JANKY_BACKBUFFER
fb->stride = fi.line_length/2;
fb->data = (void*) (((unsigned) bits) + vi.yres * fi.line_length);
#else
fb->stride = vi.xres_virtual;
fb->data = (void*) (((unsigned) bits) + vi.yres * fb->stride * PIXEL_SIZE);
#endif
fb->format = PIXEL_FORMAT;
memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE);
#ifdef PRINT_SCREENINFO
print_fb_var_screeninfo();
#endif
return fd;
}
static int get_framebuffer(GGLSurface *fb)
{
int fd;
int fb_size;
struct fb_fix_screeninfo fi;
void *bits;
fd = open("/dev/graphics/fb0", O_RDWR);
if (fd < 0) {
perror("cannot open fb0");
return -1;
}
if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
perror("failed to get fb0 info");
close(fd);
return -1;
}
//fprintf(stderr, "Pixel format: %dx%d @ %dbpp\n", vi.xres, vi.yres, vi.bits_per_pixel);
/*vi.bits_per_pixel = PIXEL_SIZE * 8;
if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_BGRA_8888) {
fprintf(stderr, "Pixel format: BGRA_8888\n");
if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
vi.red.offset = 8;
vi.red.length = 8;
vi.green.offset = 16;
vi.green.length = 8;
vi.blue.offset = 24;
vi.blue.length = 8;
vi.transp.offset = 0;
vi.transp.length = 8;
} else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGBX_8888) {
fprintf(stderr, "Pixel format: RGBX_8888\n");
if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
vi.red.offset = 24;
vi.red.length = 8;
vi.green.offset = 16;
vi.green.length = 8;
vi.blue.offset = 8;
vi.blue.length = 8;
vi.transp.offset = 0;
vi.transp.length = 8;
} else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGB_565) {
#ifdef RECOVERY_RGB_565
fprintf(stderr, "Pixel format: RGB_565\n");
vi.blue.offset = 0;
vi.green.offset = 5;
vi.red.offset = 11;
#else
fprintf(stderr, "Pixel format: BGR_565\n");
vi.blue.offset = 11;
vi.green.offset = 5;
vi.red.offset = 0;
#endif
if (PIXEL_SIZE != 2) fprintf(stderr, "E: Pixel Size mismatch!\n");
vi.blue.length = 5;
vi.green.length = 6;
vi.red.length = 5;
vi.blue.msb_right = 0;
vi.green.msb_right = 0;
vi.red.msb_right = 0;
vi.transp.offset = 0;
vi.transp.length = 0;
}
else
{
perror("unknown pixel format");
close(fd);
return -1;
}
vi.vmode = FB_VMODE_NONINTERLACED;
vi.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE;
if (ioctl(fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
perror("failed to put fb0 info");
close(fd);
return -1;
}*/
if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) {
perror("failed to get fb0 info");
close(fd);
return -1;
}
bits = mmap(0, fi.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (bits == MAP_FAILED) {
perror("failed to mmap framebuffer");
close(fd);
return -1;
}
fprintf(stderr, "framebuffer bits:%d\n", vi.bits_per_pixel);
fb->version = sizeof(*fb);
fb->width = vi.xres;
fb->height = vi.yres;
fb->stride = vi.xres;
fb->data = bits;
fb_size = PAGE_ALIGN(vi.yres * vi.xres * 4);
fb->format = GGL_PIXEL_FORMAT_RGBA_8888;
memset(fb->data, 0, fb_size);
fb++;
fb->version = sizeof(*fb);
fb->width = vi.xres;
fb->height = vi.yres;
fb->stride = vi.xres;
fb->data = (void*) (((unsigned) bits) + fb_size);
fb->format = GGL_PIXEL_FORMAT_RGBA_8888;
memset(fb->data, 0, fb_size);
#ifdef PRINT_SCREENINFO
print_fb_var_screeninfo();
#endif
return fd;
}
