File: pixman-interp.patch

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diff --git a/gfx/cairo/libpixman/src/pixman-private.h b/gfx/cairo/libpixman/src/pixman-private.h
--- a/gfx/cairo/libpixman/src/pixman-private.h
+++ b/gfx/cairo/libpixman/src/pixman-private.h
@@ -1,17 +1,26 @@
 #ifndef PIXMAN_PRIVATE_H
 #define PIXMAN_PRIVATE_H
 
 /*
  * The defines which are shared between C and assembly code
  */
 
-/* bilinear interpolation precision (must be < 8) */
+/* bilinear interpolation precision (must be <= 8) */
+#ifndef MOZILLA_VERSION
+#error "Need mozilla headers"
+#endif
+#ifdef MOZ_GFX_OPTIMIZE_MOBILE
+#define LOW_QUALITY_INTERPOLATION
+#define LOWER_QUALITY_INTERPOLATION
+#define BILINEAR_INTERPOLATION_BITS 4
+#else
 #define BILINEAR_INTERPOLATION_BITS 7
+#endif
 #define BILINEAR_INTERPOLATION_RANGE (1 << BILINEAR_INTERPOLATION_BITS)
 
 /*
  * C specific part
  */
 
 #ifndef __ASSEMBLER__