diff options
| author | Ben Avison <bavison@riscosopen.org> | 2014-08-04 16:10:31 +0100 |
|---|---|---|
| committer | Ben Avison <bavison@riscosopen.org> | 2015-10-15 15:04:05 +0100 |
| commit | 2cbd45c9e4ea46c3ba804667dee892ebd996e2c9 (patch) | |
| tree | 4f085346b2faa95d2358689c107f0bcb11fc3122 | |
| parent | 3a6ced6399c7b5497690f6ca7fe033a88933b25f (diff) | |
armv6: Add fetcher for r5g6b5 nearest-neighbour transformed images
This is related to the a8r8g8b8 nearest-scaled-cover fetcher. Below are
benchmarks for src_0565_8888, which uses it.
lowlevel-blt-bench -n :
Before After
Mean StdDev Mean StdDev Confidence Change
L1 9.0 0.0 34.4 0.3 100.0% +284.7%
L2 8.1 0.1 29.0 0.6 100.0% +258.7%
M 8.4 0.0 33.2 0.1 100.0% +297.6%
HT 5.8 0.0 16.5 0.3 100.0% +183.6%
VT 5.8 0.0 16.0 0.3 100.0% +175.6%
R 5.6 0.0 15.6 0.1 100.0% +175.5%
RT 3.0 0.0 6.0 0.2 100.0% +98.7%
affine-bench:
Before After
Mean StdDev Mean StdDev Confidence Change
0.5 11.2 0.0 52.0 0.1 100.0% +363.2%
0.75 10.9 0.0 41.3 0.1 100.0% +279.3%
1.0 10.6 0.0 33.4 0.1 100.0% +216.7%
1.5 10.0 0.0 32.3 0.1 100.0% +221.8%
2.0 9.4 0.0 31.7 0.0 100.0% +236.0%
| -rw-r--r-- | pixman/pixman-arm-simd-asm-scaled.S | 20 | ||||
| -rw-r--r-- | pixman/pixman-arm-simd.c | 2 |
2 files changed, 22 insertions, 0 deletions
diff --git a/pixman/pixman-arm-simd-asm-scaled.S b/pixman/pixman-arm-simd-asm-scaled.S index 2c7e091..44f565a 100644 --- a/pixman/pixman-arm-simd-asm-scaled.S +++ b/pixman/pixman-arm-simd-asm-scaled.S @@ -162,4 +162,24 @@ generate_nearest_scaled_cover_function \ pixman_get_scanline_nearest_scaled_cover_a8r8g8b8_asm_armv6, 32, \ 3, 3 /* prefetch distances */, nop_macro, nop_macro +.macro init_ge + msr CPSR_s, #0x50000 +.endm + +.macro convert_0565_8888, reg, tmp + bic tmp, reg, #0x07e0 @ 0000000000000000rrrrr000000bbbbb + and reg, reg, #0x07e0 @ 000000000000000000000gggggg00000 + mov tmp, tmp, lsl #3 @ 0000000000000rrrrr000000bbbbb000 + mov reg, reg, lsl #5 @ 0000000000000000gggggg0000000000 + orr tmp, tmp, tmp, lsr #5 @ 0000000000000rrrrrrrrrr0bbbbbbbb + orr reg, reg, reg, lsr #6 @ 000000000000000gggggggggggg00000 + pkhbt tmp, tmp, tmp, lsl #5 @ --------rrrrrrrr--------bbbbbbbb + sel reg, tmp, reg @ --------rrrrrrrrggggggggbbbbbbbb + orr reg, reg, #0xFF000000 @ 11111111rrrrrrrrggggggggbbbbbbbb +.endm + +generate_nearest_scaled_cover_function \ + pixman_get_scanline_nearest_scaled_cover_r5g6b5_asm_armv6, 16, \ + 2, 3 /* prefetch distances */, init_ge, convert_0565_8888 + /******************************************************************************/ diff --git a/pixman/pixman-arm-simd.c b/pixman/pixman-arm-simd.c index 579935d..60833ec 100644 --- a/pixman/pixman-arm-simd.c +++ b/pixman/pixman-arm-simd.c @@ -140,6 +140,7 @@ pixman_get_scanline_nearest_scaled_cover_##name##_asm_##cputype ( \ width, x, ux, dest, source, mask); PIXMAN_ARM_BIND_GET_SCANLINE_NEAREST_SCALED_COVER (armv6, a8r8g8b8, 8888, uint32_t) +PIXMAN_ARM_BIND_GET_SCANLINE_NEAREST_SCALED_COVER (armv6, r5g6b5, 0565, uint16_t) void pixman_composite_src_n_8888_asm_armv6 (int32_t w, @@ -375,6 +376,7 @@ static const pixman_iter_info_t arm_simd_iters[] = PIXMAN_ARM_UNTRANSFORMED_COVER_FETCHER (armv6, x8r8g8b8), PIXMAN_ARM_UNTRANSFORMED_COVER_FETCHER (armv6, r5g6b5), + PIXMAN_ARM_NEAREST_SCALED_COVER_FETCHER (armv6, r5g6b5), PIXMAN_ARM_WRITEBACK (armv6, r5g6b5), PIXMAN_ARM_UNTRANSFORMED_COVER_FETCHER (armv6, a1r5g5b5), |