[cairo] New ARMv7-A (NEON) optimisations for Pixman

[Jeff Muizelaar]

On Fri, May 08, 2009 at 11:26:13AM +0000, Jonathan Morton wrote:
> +#ifdef USE_GCC_INLINE_ASM
> +    { PIXMAN_OP_SRC,  PIXMAN_r5g6b5,   PIXMAN_null,     PIXMAN_r5g6b5,   fbCompositeSrc_16x16neon,              0 },
> +    { PIXMAN_OP_SRC,  PIXMAN_b5g6r5,   PIXMAN_null,     PIXMAN_b5g6r5,   fbCompositeSrc_16x16neon,              0 },
> +    { PIXMAN_OP_OVER, PIXMAN_r5g6b5,   PIXMAN_null,     PIXMAN_r5g6b5,   fbCompositeSrc_16x16neon,              0 },
> +    { PIXMAN_OP_OVER, PIXMAN_b5g6r5,   PIXMAN_null,     PIXMAN_b5g6r5,   fbCompositeSrc_16x16neon,              0 },
> +    { PIXMAN_OP_SRC,  PIXMAN_a8r8g8b8, PIXMAN_null,     PIXMAN_r5g6b5,   fbCompositeSrc_24x16neon,              0 },
> +    { PIXMAN_OP_SRC,  PIXMAN_a8b8g8r8, PIXMAN_null,     PIXMAN_b5g6r5,   fbCompositeSrc_24x16neon,              0 },
> +    { PIXMAN_OP_SRC,  PIXMAN_x8r8g8b8, PIXMAN_null,     PIXMAN_r5g6b5,   fbCompositeSrc_24x16neon,              0 },
> +    { PIXMAN_OP_SRC,  PIXMAN_x8b8g8r8, PIXMAN_null,     PIXMAN_b5g6r5,   fbCompositeSrc_24x16neon,              0 },

Doesn't fbCompositeSrc_24x16neon implement the same operation as
fbCompositeSrc_x888x0565neon?

How does the performance of those two implementations compare?a

-Jeff