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main: allow external textures for BindImageTexture

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From issue 10 of the OES_EGL_image_external_essl3:

  A limited set of use-cases is enabled by making glBindImageTexture
  accept external textures. Shaders can access such external textures
  using the existing <image2D> sampler type.

Fixes: 02a6d901ee ("mesa: add OES_EGL_image_external_essl3 support")

Signed-off-by: Yevhenii Kolesnikov <yevhenii.kolesnikov@globallogic.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Yevhenii Kolesnikov
2020-01-02 15:06:48 +02:00
committed by Tapani Pälli
parent 803fad43c3
commit ed43dd62ac
1 changed files with 5 additions and 1 deletions
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src/mesa/main/shaderimage.c
+5 -1
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@@ -654,9 +654,13 @@ _mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
* However note that issue 7 of the GL_OES_texture_buffer spec * However note that issue 7 of the GL_OES_texture_buffer spec
* recognizes that there is no way to create immutable buffer textures, * recognizes that there is no way to create immutable buffer textures,
* so those are excluded from this requirement. * so those are excluded from this requirement.
*
* Additionally, issue 10 of the OES_EGL_image_external_essl3 spec
* states that glBindImageTexture must accept external textures.
*/ */
if (_mesa_is_gles(ctx) && !texObj->Immutable && if (_mesa_is_gles(ctx) && !texObj->Immutable &&
texObj->Target != GL_TEXTURE_BUFFER) { texObj->Target != GL_TEXTURE_BUFFER &&
texObj->Target != GL_TEXTURE_EXTERNAL_OES) {
_mesa_error(ctx, GL_INVALID_OPERATION, _mesa_error(ctx, GL_INVALID_OPERATION,
"glBindImageTexture(!immutable)"); "glBindImageTexture(!immutable)");
return; return;