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% --- pixman/pixman-arm-simd-asm-scaled.S | 20 ++++++++++++++++++++ pixman/pixman-arm-simd.c | 9 +++++++++ 2 files changed, 29 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 0a4daa7..a9d8e7d 100644 --- a/pixman/pixman-arm-simd.c +++ b/pixman/pixman-arm-simd.c @@ -177,6 +177,7 @@ cputype##_get_scanline_nearest_scaled_cover_##name (pixman_iter_t *iter, \ } BIND_GET_SCANLINE_NEAREST_SCALED_COVER (armv6, a8r8g8b8, uint32_t) +BIND_GET_SCANLINE_NEAREST_SCALED_COVER (armv6, r5g6b5, uint16_t) void pixman_composite_src_n_8888_asm_armv6 (int32_t w, @@ -433,6 +434,14 @@ static const pixman_iter_info_t arm_simd_iters[] = armv6_write_back_r5g6b5 }, + { PIXMAN_r5g6b5, + PIXMAN_ARM_NEAREST_SCALED_COVER_FLAGS, + ITER_NARROW | ITER_SRC, + NULL, + armv6_get_scanline_nearest_scaled_cover_r5g6b5, + NULL + }, + { PIXMAN_a1r5g5b5, (FAST_PATH_STANDARD_FLAGS | FAST_PATH_ID_TRANSFORM | -- 1.7.5.4 _______________________________________________ Pixman mailing list Pixman@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/pixman