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-rw-r--r--src/mesa/drivers/dri/intel/intel_fbo.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c
index c37075c6be9..45a682727e4 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.c
+++ b/src/mesa/drivers/dri/intel/intel_fbo.c
@@ -804,6 +804,15 @@ intel_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
if (stencil_mt->format != MESA_FORMAT_S8)
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+ if (intel->gen < 7 && depth_mt->hiz_mt == NULL) {
+ /* Before Gen7, separate depth and stencil buffers can be used
+ * only if HiZ is enabled. From the Sandybridge PRM, Volume 2,
+ * Part 1, Bit 3DSTATE_DEPTH_BUFFER.SeparateStencilBufferEnable:
+ * [DevSNB]: This field must be set to the same value (enabled
+ * or disabled) as Hierarchical Depth Buffer Enable.
+ */
+ fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
+ }
}
}