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Clarify EGL_EXT_image_dma_buf_import / EXT_EGL_image_storage interact… #1

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Clarify EGL_EXT_image_dma_buf_import / EXT_EGL_image_storage interact… #1

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18 changes: 15 additions & 3 deletions extensions/EXT/EXT_EGL_image_storage.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -40,9 +40,9 @@ Dependencies

The EGL_KHR_gl_texture_2D_image, EGL_KHR_gl_texture_cubemap_image,
EGL_KHR_gl_texture_3D_image, EGL_KHR_gl_renderbuffer_image,
EGL_KHR_vg_parent_image, and EGL_ANDROID_get_native_client_buffer
extensions provide additional functionality layered on EGL_KHR_image_base
and related to this extension.
EGL_KHR_vg_parent_image, EGL_ANDROID_get_native_client_buffer, and
EXT_image_dma_buf_import extensions provide additional functionality
layered on EGL_KHR_image_base and related to this extension.

EXT_direct_state_access, ARB_direct_state_access, and OpenGL 4.5 affect
the definition of this extension.
Expand Down Expand Up @@ -140,6 +140,18 @@ Samplers)
eglImageOES, or <target> is GL_TEXTURE_2D but <image> contains a cube map),
the error INVALID_OPERATION is generated.

If the EGL image was created was created using EGL_EXT_image_dma_buf_import,
then the following applies:

- <target> must be GL_TEXTURE_2D or GL_TEXTURE_EXTERNAL_OES. Otherwise,
the error INVALID_OPERATION is generated.
- if <target> is GL_TEXTURE_2D, then the resultant texture must have
a sized internal format with the same component ordering as the
dma-buf. If the GL is unable to determine such a format, the error
INVALID_OPERATION is generated.
- if <target> is GL_TEXTURE_EXTERNAL_OES, the internal format of the
texture is implementation defined.

If <attrib_list> is neither NULL nor a pointer to the value GL_NONE, the
error INVALID_VALUE is generated.

Expand Down