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egl: return corresponding offset of EGLImage instead of 0.

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The offset should not always be 0. For example, if EGLImage is
created from a 2D texture with EGL_GL_TEXTURE_LEVEL=1, then the
offset should be the actual start of miplevel 1 in bo.

v2: Add version check of __DRIimageExtension implementation
(Suggested by Axel Davy).

v3: Don't add version check of __DRIimageExtension implementation.
Set the offset only when queryImage() succeeds. (Suggested by Emil
Velikov)

Signed-off-by: Chuanbo Weng <chuanbo.weng@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
[Emil Velikov: coding style fixes]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
This commit is contained in:
Chuanbo Weng
2016-09-14 01:07:10 +08:00
committed by Emil Velikov
parent 1ceb775d57
commit 9e8de866f7
1 changed files with 9 additions and 2 deletions
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src/egl/drivers/dri2/egl_dri2.c
+9 -2
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@@ -2259,8 +2259,15 @@ dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *im
dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_STRIDE, strides);
if (offsets)
offsets[0] = 0;
if (offsets) {
int img_offset;
bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
if (ret)
offsets[0] = img_offset;
else
offsets[0] = 0;
}
return EGL_TRUE;
}