A33用mali OpenGL错误，有没有遇到过
测试代码如下：
egl_dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (egl_dpy == EGL_NO_DISPLAY)
egl_fatal("failed to get a display");
if (!eglInitialize(egl_dpy, &major, &minor))
egl_fatal("failed to initialize EGL");用默认显示器，eglGetDisplay可以过，eglInitialize会错误，返回EGL_NO_DISPLAY
eglGetDisplay(EGL_DEFAULT_DISPLAY);
-----------
char *fbdev = "/dev/fb0";
fd = open(fbdev, O_RDWR);
if (fd < 0)
egl_fatal("failed to open %s", fbdev);
egl_dpy = eglGetDisplay((EGLNativeDisplayType)fd);
if (egl_dpy == EGL_NO_DISPLAY)
egl_fatal("failed to get a display");
if (!eglInitialize(egl_dpy, &major, &minor))
egl_fatal("failed to initialize EGL");如果先打开/dev/fb0
则eglGetDisplay会错误，返回EGL_NO_DISPLAY
ls
egl*
[root@dragonboard /root]# ./egl
open /dev/fb0
UMP: ump_arch_open() failed to open UMP device driver
failed to initialize EGL
Aborted
[root@dragonboard /root]# insmod /lib/modules/3.4.39/ump.ko
[ 62.165246] UMP: UMP device driver loaded
[root@dragonboard /root]# ./egl
open /dev/fb0
failed to initialize EGL
Aborted
[root@dragonboard /root]# insmod /lib/modules/3.4.39/mali.ko
[ 84.345159] axp22_dcdc2: Failed to create debugfs directory
[ 84.351573] =========================================================
[ 84.358719] Mali GPU Information
[ 84.363970] voltage : 1140 mV
[ 84.368417] initial frequency : 408000000 MHz
[ 84.373469] frame buffer address: 0x58c00000 - 0x78c00000
[ 84.379466] frame buffer size : 512 MB
[ 84.383834] =========================================================
[ 84.393913] Mali: Mali device driver loaded
[root@dragonboard /root]# ./egl
open /dev/fb0
failed to initialize EGL
Aborted
[root@dragonboard /root]# 离线
这个是fb的参数，开启了双缓冲，测试双缓冲也正常
the framebuffer device was opended successfully.
id
smem_start 1488977920
smem_len 3072000
type 0
type_aux 0
visual 2
xpanstep 1
ypanstep 1
line_length 3200
mmio_start 0
mmio_len 0
accel 0
xres 800
yres 480
xres_virturl 800
yres_virtual 960
xoffset 0
yoffset 0
bits_per_pixel 32
grayscale 0
fb_bitfield red.offset 16
fb_bitfield .length 8
fb_bitfield .msb_right 0
fb_bitfield green.offset 8
fb_bitfield .length 8
fb_bitfield .msb_right 0
fb_bitfield blue.offset 0
fb_bitfield .length 8
fb_bitfield .msb_right 0
fb_bitfield transp.offset 24
fb_bitfield .length 8
fb_bitfield .msb_right 0
nonstd 0
activate 0
height 0
widht 0
accel_flags 0
pixclock 30303
left_margin 46
right_margin 209
upper_margin 18
lower_margin 22
hsync_len 0
vsync_len 5
sync 0
vmode 0
rotate 0
the framebuffer devices was mapped to memory successfully
bye the framebuffer最近编辑记录 xinxin (2020-11-23 11:59:42)
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通过eglGetError取到的错误是EGL_BAD_ALLOC
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你是用全志的库还是LIMA驱动？
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