diff options
| -rw-r--r-- | opengl/system/gralloc/gralloc.cpp | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/opengl/system/gralloc/gralloc.cpp b/opengl/system/gralloc/gralloc.cpp index a6f7d91..059bf12 100644 --- a/opengl/system/gralloc/gralloc.cpp +++ b/opengl/system/gralloc/gralloc.cpp @@ -136,15 +136,11 @@ static int gralloc_alloc(alloc_device_t* dev, } // - // Validate usage: buffer cannot be written both by s/w and h/w access. + // Note: in screen capture mode, both sw_write and hw_write will be on + // and this is a valid usage // bool sw_write = (0 != (usage & GRALLOC_USAGE_SW_WRITE_MASK)); bool hw_write = (usage & GRALLOC_USAGE_HW_RENDER); - if (hw_write && sw_write) { - ALOGE("gralloc_alloc: Mismatched usage flags: %d x %d, usage %x", - w, h, usage); - return -EINVAL; - } bool sw_read = (0 != (usage & GRALLOC_USAGE_SW_READ_MASK)); bool hw_cam_write = usage & GRALLOC_USAGE_HW_CAMERA_WRITE; bool hw_cam_read = usage & GRALLOC_USAGE_HW_CAMERA_READ; @@ -685,6 +681,15 @@ static int gralloc_lock(gralloc_module_t const* module, return -EBUSY; } + const bool sw_read = (cb->usage & GRALLOC_USAGE_SW_READ_MASK); + const bool hw_write = (cb->usage & GRALLOC_USAGE_HW_RENDER); + const bool screen_capture_mode = (sw_read && hw_write); + if (screen_capture_mode) { + D("gralloc_lock read back color buffer %d %d\n", cb->width, cb->height); + DEFINE_AND_VALIDATE_HOST_CONNECTION; + rcEnc->rcReadColorBuffer(rcEnc, cb->hostHandle, + 0, 0, cb->width, cb->height, GL_RGBA, GL_UNSIGNED_BYTE, cpu_addr); + } } // |