mesa: In conditional rendering fallback, check the query status.
Otherwise, conditional rendering always takes the fallthrough "render it anyway" case unless the application had itself done a check or wait on the query. Fixes intel oglconform's conditional_render advanced.nofbo.readpixels. Reviewed-by: Brian Paul <brianp@vmware.com> NOTE: This is a candidate for the 8.0 branch.
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@ -139,6 +139,8 @@ _mesa_check_conditional_render(struct gl_context *ctx)
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case GL_QUERY_BY_REGION_NO_WAIT:
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/* fall-through */
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case GL_QUERY_NO_WAIT:
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if (!q->Ready)
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ctx->Driver.CheckQuery(ctx, q);
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return q->Ready ? (q->Result > 0) : GL_TRUE;
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default:
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_mesa_problem(ctx, "Bad cond render mode %s in "
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