[Pixman] [PATCH 3/4] MIPS: DSPr2: Added fast-paths for OVER operation: - over_0565_n_0565 - over_0565_8_0565
Nemanja Lukic
nlukic at mips.com
Fri Sep 14 00:31:25 PDT 2012
From: Nemanja Lukic <nemanja.lukic at rt-rk.com>
Performance numbers before/after on MIPS-74kc @ 1GHz:
lowlevel-blt-bench results
Referent (before):
over_0565_n_0565 = L1: 7.56 L2: 7.24 M: 6.16 ( 16.38%) HT: 4.01 VT: 3.84 R: 3.79 RT: 1.66 ( 18Kops/s)
over_0565_8_0565 = L1: 7.43 L2: 7.05 M: 5.98 ( 23.85%) HT: 5.27 VT: 5.23 R: 5.09 RT: 3.14 ( 28Kops/s)
Optimized:
over_0565_n_0565 = L1: 15.47 L2: 14.52 M: 12.30 ( 32.65%) HT: 10.76 VT: 10.57 R: 10.27 RT: 6.63 ( 46Kops/s)
over_0565_8_0565 = L1: 15.47 L2: 14.61 M: 11.78 ( 46.92%) HT: 10.00 VT: 9.84 R: 9.40 RT: 5.81 ( 43Kops/s)
---
pixman/pixman-mips-dspr2-asm.S | 119 ++++++++++++++++++++++++++++++++++++++++
pixman/pixman-mips-dspr2.c | 8 +++
2 files changed, 127 insertions(+), 0 deletions(-)
diff --git a/pixman/pixman-mips-dspr2-asm.S b/pixman/pixman-mips-dspr2-asm.S
index dc44f9c..a4426f2 100644
--- a/pixman/pixman-mips-dspr2-asm.S
+++ b/pixman/pixman-mips-dspr2-asm.S
@@ -857,6 +857,65 @@ LEAF_MIPS_DSPR2(pixman_composite_over_8888_n_0565_asm_mips)
END(pixman_composite_over_8888_n_0565_asm_mips)
+LEAF_MIPS_DSPR2(pixman_composite_over_0565_n_0565_asm_mips)
+/*
+ * a0 - dst (r5g6b5)
+ * a1 - src (r5g6b5)
+ * a2 - mask (32bit constant)
+ * a3 - w
+ */
+
+ SAVE_REGS_ON_STACK 20, s0, s1, s2, s3, s4, s5
+ li t6, 0x00ff00ff
+ li t7, 0xf800f800
+ li t8, 0x07e007e0
+ li t9, 0x001F001F
+ beqz a3, 3f
+ nop
+ srl a2, a2, 24
+ addiu t1, a3, -1
+ beqz t1, 2f
+ nop
+1:
+ lhu t0, 0(a1) /* t0 = source (r5g6b5) */
+ lhu t1, 2(a1) /* t1 = source (r5g6b5) */
+ /* a2 = mask (32bit constant) */
+ lhu t2, 0(a0) /* t2 = destination (r5g6b5) */
+ lhu t3, 2(a0) /* t3 = destination (r5g6b5) */
+ addiu a1, a1, 4
+
+ CONVERT_2x0565_TO_2x8888 t0, t1, t4, t5, t8, t9, s0, s1, s2, s3
+ CONVERT_2x0565_TO_2x8888 t2, t3, s0, s1, t8, t9, s2, s3, s4, s5
+ OVER_2x8888_2x8_2x8888 t4, t5, a2, a2, s0, s1, \
+ t0, t1, t6, s2, s3, s4, s5, t4, t5
+ CONVERT_2x8888_TO_2x0565 t0, t1, s0, s1, t7, t8, t9, s2, s3
+
+ sh s0, 0(a0)
+ sh s1, 2(a0)
+ addiu a3, a3, -2
+ addiu t1, a3, -1
+ bgtz t1, 1b
+ addiu a0, a0, 4
+2:
+ beqz a3, 3f
+ nop
+ lhu t0, 0(a1) /* t0 = source (r5g6b5) */
+ /* a2 = mask (32bit constant) */
+ lhu t1, 0(a0) /* t1 = destination (r5g6b5) */
+
+ CONVERT_1x0565_TO_1x8888 t0, t2, t4, t5
+ CONVERT_1x0565_TO_1x8888 t1, t3, t4, t5
+ OVER_8888_8_8888 t2, a2, t3, t0, t6, t1, t4, t5, t7
+ CONVERT_1x8888_TO_1x0565 t0, t3, t4, t5
+
+ sh t3, 0(a0)
+3:
+ RESTORE_REGS_FROM_STACK 20, s0, s1, s2, s3, s4, s5
+ j ra
+ nop
+
+END(pixman_composite_over_0565_n_0565_asm_mips)
+
LEAF_MIPS_DSPR2(pixman_composite_over_8888_8_8888_asm_mips)
/*
* a0 - dst (a8r8g8b8)
@@ -966,6 +1025,66 @@ LEAF_MIPS_DSPR2(pixman_composite_over_8888_8_0565_asm_mips)
END(pixman_composite_over_8888_8_0565_asm_mips)
+LEAF_MIPS_DSPR2(pixman_composite_over_0565_8_0565_asm_mips)
+/*
+ * a0 - dst (r5g6b5)
+ * a1 - src (r5g6b5)
+ * a2 - mask (a8)
+ * a3 - w
+ */
+
+ SAVE_REGS_ON_STACK 20, s0, s1, s2, s3, s4, s5
+ li t4, 0xf800f800
+ li t5, 0x07e007e0
+ li t6, 0x001F001F
+ li t7, 0x00ff00ff
+ beqz a3, 3f
+ nop
+ addiu t1, a3, -1
+ beqz t1, 2f
+ nop
+1:
+ lhu t0, 0(a1) /* t0 = source (r5g6b5) */
+ lhu t1, 2(a1) /* t1 = source (r5g6b5) */
+ lbu t2, 0(a2) /* t2 = mask (a8) */
+ lbu t3, 1(a2) /* t3 = mask (a8) */
+ lhu t8, 0(a0) /* t8 = destination (r5g6b5) */
+ lhu t9, 2(a0) /* t9 = destination (r5g6b5) */
+ addiu a1, a1, 4
+ addiu a2, a2, 2
+
+ CONVERT_2x0565_TO_2x8888 t0, t1, s0, s1, t5, t6, s2, s3, s4, s5
+ CONVERT_2x0565_TO_2x8888 t8, t9, s2, s3, t5, t6, s4, s5, t0, t1
+ OVER_2x8888_2x8_2x8888 s0, s1, t2, t3, s2, s3, \
+ t0, t1, t7, s4, s5, t8, t9, s0, s1
+ CONVERT_2x8888_TO_2x0565 t0, t1, s0, s1, t4, t5, t6, s2, s3
+
+ sh s0, 0(a0)
+ sh s1, 2(a0)
+ addiu a3, a3, -2
+ addiu t1, a3, -1
+ bgtz t1, 1b
+ addiu a0, a0, 4
+2:
+ beqz a3, 3f
+ nop
+ lhu t0, 0(a1) /* t0 = source (r5g6b5) */
+ lbu t1, 0(a2) /* t1 = mask (a8) */
+ lhu t2, 0(a0) /* t2 = destination (r5g6b5) */
+
+ CONVERT_1x0565_TO_1x8888 t0, t3, t4, t5
+ CONVERT_1x0565_TO_1x8888 t2, t4, t5, t6
+ OVER_8888_8_8888 t3, t1, t4, t0, t7, t2, t5, t6, t8
+ CONVERT_1x8888_TO_1x0565 t0, t3, t4, t5
+
+ sh t3, 0(a0)
+3:
+ RESTORE_REGS_FROM_STACK 20, s0, s1, s2, s3, s4, s5
+ j ra
+ nop
+
+END(pixman_composite_over_0565_8_0565_asm_mips)
+
LEAF_MIPS_DSPR2(pixman_scaled_bilinear_scanline_8888_8888_SRC_asm_mips)
/*
* a0 - *dst
diff --git a/pixman/pixman-mips-dspr2.c b/pixman/pixman-mips-dspr2.c
index d7b47aa..881d5fa 100644
--- a/pixman/pixman-mips-dspr2.c
+++ b/pixman/pixman-mips-dspr2.c
@@ -62,11 +62,15 @@ PIXMAN_MIPS_BIND_FAST_PATH_SRC_N_DST (SKIP_ZERO_MASK, over_8888_n_8888,
uint32_t, 1, uint32_t, 1)
PIXMAN_MIPS_BIND_FAST_PATH_SRC_N_DST (SKIP_ZERO_MASK, over_8888_n_0565,
uint32_t, 1, uint16_t, 1)
+PIXMAN_MIPS_BIND_FAST_PATH_SRC_N_DST (SKIP_ZERO_MASK, over_0565_n_0565,
+ uint16_t, 1, uint16_t, 1)
PIXMAN_MIPS_BIND_FAST_PATH_SRC_MASK_DST (over_8888_8_8888, uint32_t, 1,
uint8_t, 1, uint32_t, 1)
PIXMAN_MIPS_BIND_FAST_PATH_SRC_MASK_DST (over_8888_8_0565, uint32_t, 1,
uint8_t, 1, uint16_t, 1)
+PIXMAN_MIPS_BIND_FAST_PATH_SRC_MASK_DST (over_0565_8_0565, uint16_t, 1,
+ uint8_t, 1, uint16_t, 1)
PIXMAN_MIPS_BIND_SCALED_BILINEAR_SRC_DST (0, 8888_8888, SRC,
uint32_t, uint32_t)
@@ -246,12 +250,16 @@ static const pixman_fast_path_t mips_dspr2_fast_paths[] =
PIXMAN_STD_FAST_PATH (OVER, a8r8g8b8, solid, x8r8g8b8, mips_composite_over_8888_n_8888),
PIXMAN_STD_FAST_PATH (OVER, a8r8g8b8, solid, r5g6b5, mips_composite_over_8888_n_0565),
PIXMAN_STD_FAST_PATH (OVER, a8b8g8r8, solid, b5g6r5, mips_composite_over_8888_n_0565),
+ PIXMAN_STD_FAST_PATH (OVER, r5g6b5, solid, r5g6b5, mips_composite_over_0565_n_0565),
+ PIXMAN_STD_FAST_PATH (OVER, b5g6r5, solid, b5g6r5, mips_composite_over_0565_n_0565),
PIXMAN_STD_FAST_PATH (OVER, a8r8g8b8, a8, a8r8g8b8, mips_composite_over_8888_8_8888),
PIXMAN_STD_FAST_PATH (OVER, a8r8g8b8, a8, x8r8g8b8, mips_composite_over_8888_8_8888),
PIXMAN_STD_FAST_PATH (OVER, a8b8g8r8, a8, a8b8g8r8, mips_composite_over_8888_8_8888),
PIXMAN_STD_FAST_PATH (OVER, a8b8g8r8, a8, x8b8g8r8, mips_composite_over_8888_8_8888),
PIXMAN_STD_FAST_PATH (OVER, a8r8g8b8, a8, r5g6b5, mips_composite_over_8888_8_0565),
PIXMAN_STD_FAST_PATH (OVER, a8b8g8r8, a8, b5g6r5, mips_composite_over_8888_8_0565),
+ PIXMAN_STD_FAST_PATH (OVER, r5g6b5, a8, r5g6b5, mips_composite_over_0565_8_0565),
+ PIXMAN_STD_FAST_PATH (OVER, b5g6r5, a8, b5g6r5, mips_composite_over_0565_8_0565),
SIMPLE_BILINEAR_FAST_PATH (SRC, a8r8g8b8, a8r8g8b8, mips_8888_8888),
SIMPLE_BILINEAR_FAST_PATH (SRC, a8r8g8b8, x8r8g8b8, mips_8888_8888),
--
1.7.3
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