[Pixman] [PATCH 2/3] MIPS: DSPr2: Added more fast-paths for SRC operation:
Nemanja Lukic
nlukic at mips.com
Sun Nov 4 13:58:20 PST 2012
From: Nemanja Lukic <nemanja.lukic at rt-rk.com>
Performance numbers before/after on MIPS-74kc @ 1GHz:
lowlevel-blt-bench results
Referent (before):
src_n_8_8888 = L1: 13.79 L2: 22.47 M: 17.55 ( 58.28%) HT: 6.95 VT: 6.46 R: 6.34 RT: 2.07 ( 20Kops/s)
src_n_8_8 = L1: 20.22 L2: 20.21 M: 18.20 ( 24.17%) HT: 6.65 VT: 6.22 R: 6.11 RT: 2.03 ( 20Kops/s)
Optimized:
src_n_8_8888 = L1: 58.31 L2: 53.34 M: 25.69 ( 85.29%) HT: 22.55 VT: 21.44 R: 19.91 RT: 10.34 ( 48Kops/s)
src_n_8_8 = L1: 102.60 L2: 89.43 M: 65.01 ( 86.32%) HT: 37.87 VT: 37.02 R: 32.43 RT: 12.41 ( 51Kops/s)
---
pixman/pixman-mips-dspr2-asm.S | 133 ++++++++++++++++++++++++++++++++++++++++
pixman/pixman-mips-dspr2.c | 9 +++
2 files changed, 142 insertions(+), 0 deletions(-)
diff --git a/pixman/pixman-mips-dspr2-asm.S b/pixman/pixman-mips-dspr2-asm.S
index 9b9b449..d2482e0 100644
--- a/pixman/pixman-mips-dspr2-asm.S
+++ b/pixman/pixman-mips-dspr2-asm.S
@@ -310,6 +310,139 @@ LEAF_MIPS_DSPR2(pixman_composite_src_x888_8888_asm_mips)
END(pixman_composite_src_x888_8888_asm_mips)
+LEAF_MIPS_DSPR2(pixman_composite_src_n_8_8888_asm_mips)
+/*
+ * a0 - dst (a8r8g8b8)
+ * a1 - src (32bit constant)
+ * a2 - mask (a8)
+ * a3 - w
+ */
+
+
+ SAVE_REGS_ON_STACK 0, v0
+ li v0, 0x00ff00ff
+
+ beqz a3, 3f
+ nop
+ addiu t1, a3, -1
+ beqz t1, 2f
+ nop
+
+1:
+ /* a1 = source (32bit constant) */
+ lbu t0, 0(a2) /* t2 = mask (a8) */
+ lbu t1, 1(a2) /* t3 = mask (a8) */
+ addiu a2, a2, 2
+
+ MIPS_2xUN8x4_MUL_2xUN8 a1, a1, t0, t1, t2, t3, v0, t4, t5, t6, t7, t8, t9
+
+ sw t2, 0(a0)
+ sw t3, 4(a0)
+ addiu a3, a3, -2
+ addiu t2, a3, -1
+ bgtz t2, 1b
+ addiu a0, a0, 8
+
+ beqz a3, 3f
+ nop
+
+2:
+ lbu t0, 0(a2)
+ addiu a2, a2, 1
+
+ MIPS_UN8x4_MUL_UN8 a1, t0, t1, v0, t3, t4, t5
+
+ sw t1, 0(a0)
+ addiu a3, a3, -1
+ addiu a0, a0, 4
+
+3:
+ RESTORE_REGS_FROM_STACK 0, v0
+ j ra
+ nop
+
+END(pixman_composite_src_n_8_8888_asm_mips)
+
+LEAF_MIPS_DSPR2(pixman_composite_src_n_8_8_asm_mips)
+/*
+ * a0 - dst (a8)
+ * a1 - src (32bit constant)
+ * a2 - mask (a8)
+ * a3 - w
+ */
+
+ li t9, 0x00ff00ff
+ beqz a3, 3f
+ nop
+ srl t7, a3, 2 /* t7 = how many multiples of 4 dst pixels */
+ beqz t7, 1f /* branch if less than 4 src pixels */
+ nop
+
+ srl t8, a1, 24
+ replv.ph t8, t8
+
+0:
+ beqz t7, 1f
+ addiu t7, t7, -1
+ lbu t0, 0(a2)
+ lbu t1, 1(a2)
+ lbu t2, 2(a2)
+ lbu t3, 3(a2)
+
+ addiu a2, a2, 4
+
+ precr_sra.ph.w t1, t0, 0
+ precr_sra.ph.w t3, t2, 0
+ precr.qb.ph t0, t3, t1
+
+ muleu_s.ph.qbl t2, t0, t8
+ muleu_s.ph.qbr t3, t0, t8
+ shra_r.ph t4, t2, 8
+ shra_r.ph t5, t3, 8
+ and t4, t4, t9
+ and t5, t5, t9
+ addq.ph t2, t2, t4
+ addq.ph t3, t3, t5
+ shra_r.ph t2, t2, 8
+ shra_r.ph t3, t3, 8
+ precr.qb.ph t2, t2, t3
+
+ sb t2, 0(a0)
+ srl t2, t2, 8
+ sb t2, 1(a0)
+ srl t2, t2, 8
+ sb t2, 2(a0)
+ srl t2, t2, 8
+ sb t2, 3(a0)
+ addiu a3, a3, -4
+ b 0b
+ addiu a0, a0, 4
+
+1:
+ beqz a3, 3f
+ nop
+ srl t8, a1, 24
+2:
+ lbu t0, 0(a2)
+ addiu a2, a2, 1
+
+ mul t2, t0, t8
+ shra_r.ph t3, t2, 8
+ andi t3, t3, 0x00ff
+ addq.ph t2, t2, t3
+ shra_r.ph t2, t2, 8
+
+ sb t2, 0(a0)
+ addiu a3, a3, -1
+ bnez a3, 2b
+ addiu a0, a0, 1
+
+3:
+ j ra
+ nop
+
+END(pixman_composite_src_n_8_8_asm_mips)
+
LEAF_MIPS_DSPR2(pixman_composite_over_n_8888_8888_ca_asm_mips)
/*
* a0 - dst (a8r8g8b8)
diff --git a/pixman/pixman-mips-dspr2.c b/pixman/pixman-mips-dspr2.c
index bd828df..161377b 100644
--- a/pixman/pixman-mips-dspr2.c
+++ b/pixman/pixman-mips-dspr2.c
@@ -55,6 +55,10 @@ PIXMAN_MIPS_BIND_FAST_PATH_SRC_DST (0, add_8_8,
PIXMAN_MIPS_BIND_FAST_PATH_SRC_DST (0, add_8888_8888,
uint32_t, 1, uint32_t, 1)
+PIXMAN_MIPS_BIND_FAST_PATH_N_MASK_DST (0, src_n_8_8888,
+ uint8_t, 1, uint32_t, 1)
+PIXMAN_MIPS_BIND_FAST_PATH_N_MASK_DST (0, src_n_8_8,
+ uint8_t, 1, uint8_t, 1)
PIXMAN_MIPS_BIND_FAST_PATH_N_MASK_DST (SKIP_ZERO_SRC, over_n_8888_8888_ca,
uint32_t, 1, uint32_t, 1)
PIXMAN_MIPS_BIND_FAST_PATH_N_MASK_DST (SKIP_ZERO_SRC, over_n_8888_0565_ca,
@@ -261,6 +265,11 @@ static const pixman_fast_path_t mips_dspr2_fast_paths[] =
PIXMAN_STD_FAST_PATH (SRC, x8r8g8b8, null, a8r8g8b8, mips_composite_src_x888_8888),
PIXMAN_STD_FAST_PATH (SRC, x8b8g8r8, null, a8b8g8r8, mips_composite_src_x888_8888),
PIXMAN_STD_FAST_PATH (SRC, r8g8b8, null, r8g8b8, mips_composite_src_0888_0888),
+ PIXMAN_STD_FAST_PATH (SRC, solid, a8, a8r8g8b8, mips_composite_src_n_8_8888),
+ PIXMAN_STD_FAST_PATH (SRC, solid, a8, x8r8g8b8, mips_composite_src_n_8_8888),
+ PIXMAN_STD_FAST_PATH (SRC, solid, a8, a8b8g8r8, mips_composite_src_n_8_8888),
+ PIXMAN_STD_FAST_PATH (SRC, solid, a8, x8b8g8r8, mips_composite_src_n_8_8888),
+ PIXMAN_STD_FAST_PATH (SRC, solid, a8, a8, mips_composite_src_n_8_8),
PIXMAN_STD_FAST_PATH_CA (OVER, solid, a8r8g8b8, a8r8g8b8, mips_composite_over_n_8888_8888_ca),
PIXMAN_STD_FAST_PATH_CA (OVER, solid, a8r8g8b8, x8r8g8b8, mips_composite_over_n_8888_8888_ca),
--
1.7.3
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