[Pixman] [PATCH 06/10] ARM: NEON optimization for scaled over_8888_8888 with nearest filter

[Siarhei Siamashka]

From: Siarhei Siamashka <siarhei.siamashka at nokia.com>

Benchmark from ARM Cortex-A8 @720MHz:
    == before ==
    op=3, src_fmt=20028888, dst_fmt=20028888, speed=12.73 MPix/s

    == after ==
    op=3, src_fmt=20028888, dst_fmt=20028888, speed=28.75 MPix/s

    == unscaled ==
    op=3, src_fmt=20028888, dst_fmt=20028888, speed=53.03 MPix/s
---
 pixman/pixman-arm-neon-asm.S |   12 ++++++++++++
 pixman/pixman-arm-neon.c     |    8 ++++++++
 2 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/pixman/pixman-arm-neon-asm.S b/pixman/pixman-arm-neon-asm.S
index 029709b..b009578 100644
--- a/pixman/pixman-arm-neon-asm.S
+++ b/pixman/pixman-arm-neon-asm.S
@@ -1973,3 +1973,15 @@ generate_composite_function \
     10, /* dst_r_basereg */ \
     15, /* src_basereg   */ \
     0   /* mask_basereg  */
+
+/******************************************************************************/
+
+generate_composite_function_nearest_scanline \
+    pixman_scaled_nearest_scanline_8888_8888_OVER_asm_neon, 32, 0, 32, \
+    FLAG_DST_READWRITE | FLAG_DEINTERLEAVE_32BPP, \
+    8, /* number of pixels, processed in a single block */ \
+    default_init, \
+    default_cleanup, \
+    pixman_composite_over_8888_8888_process_pixblock_head, \
+    pixman_composite_over_8888_8888_process_pixblock_tail, \
+    pixman_composite_over_8888_8888_process_pixblock_tail_head
diff --git a/pixman/pixman-arm-neon.c b/pixman/pixman-arm-neon.c
index be5d403..9c2838f 100644
--- a/pixman/pixman-arm-neon.c
+++ b/pixman/pixman-arm-neon.c
@@ -97,6 +97,9 @@ PIXMAN_ARM_BIND_FAST_PATH_SRC_MASK_DST (neon, over_8888_8_0565,
 PIXMAN_ARM_BIND_FAST_PATH_SRC_MASK_DST (neon, over_0565_8_0565,
                                         uint16_t, 1, uint8_t, 1, uint16_t, 1)
 
+PIXMAN_ARM_BIND_SCALED_NEAREST_SRC_DST (neon, 8888_8888, OVER,
+                                        uint32_t, uint32_t)
+
 void
 pixman_composite_src_n_8_asm_neon (int32_t   w,
                                    int32_t   h,
@@ -271,6 +274,11 @@ static const pixman_fast_path_t arm_neon_fast_paths[] =
     PIXMAN_STD_FAST_PATH (OUT_REVERSE,  a8,    null, r5g6b5,   neon_composite_out_reverse_8_0565),
     PIXMAN_STD_FAST_PATH (OUT_REVERSE,  a8,    null, b5g6r5,   neon_composite_out_reverse_8_0565),
 
+    PIXMAN_ARM_SIMPLE_NEAREST_FAST_PATH (OVER, a8r8g8b8, a8r8g8b8, neon_8888_8888),
+    PIXMAN_ARM_SIMPLE_NEAREST_FAST_PATH (OVER, a8b8g8r8, a8b8g8r8, neon_8888_8888),
+    PIXMAN_ARM_SIMPLE_NEAREST_FAST_PATH (OVER, a8r8g8b8, x8r8g8b8, neon_8888_8888),
+    PIXMAN_ARM_SIMPLE_NEAREST_FAST_PATH (OVER, a8b8g8r8, x8b8g8r8, neon_8888_8888),
+
     { PIXMAN_OP_NONE },
 };
 
-- 
1.7.2.2