diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/opts/SkBlitRow_opts_arm.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gfx/skia/trunk/src/opts/SkBlitRow_opts_arm.cpp Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,394 @@ +/* + * Copyright 2012 The Android Open Source Project + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "SkBlitRow.h" +#include "SkColorPriv.h" +#include "SkDither.h" +#include "SkMathPriv.h" +#include "SkUtils.h" +#include "SkUtilsArm.h" + +#include "SkCachePreload_arm.h" + +// Define USE_NEON_CODE to indicate that we need to build NEON routines +#define USE_NEON_CODE (!SK_ARM_NEON_IS_NONE) + +// Define USE_ARM_CODE to indicate that we need to build ARM routines +#define USE_ARM_CODE (!SK_ARM_NEON_IS_ALWAYS) + +#if USE_NEON_CODE + #include "SkBlitRow_opts_arm_neon.h" +#endif + +#if USE_ARM_CODE + +static void S32A_D565_Opaque(uint16_t* SK_RESTRICT dst, + const SkPMColor* SK_RESTRICT src, int count, + U8CPU alpha, int /*x*/, int /*y*/) { + SkASSERT(255 == alpha); + + asm volatile ( + "1: \n\t" + "ldr r3, [%[src]], #4 \n\t" + "cmp r3, #0xff000000 \n\t" + "blo 2f \n\t" + "and r4, r3, #0x0000f8 \n\t" + "and r5, r3, #0x00fc00 \n\t" + "and r6, r3, #0xf80000 \n\t" +#ifdef SK_ARM_HAS_EDSP + "pld [r1, #32] \n\t" +#endif + "lsl r3, r4, #8 \n\t" + "orr r3, r3, r5, lsr #5 \n\t" + "orr r3, r3, r6, lsr #19 \n\t" + "subs %[count], %[count], #1 \n\t" + "strh r3, [%[dst]], #2 \n\t" + "bne 1b \n\t" + "b 4f \n\t" + "2: \n\t" + "lsrs r7, r3, #24 \n\t" + "beq 3f \n\t" + "ldrh r4, [%[dst]] \n\t" + "rsb r7, r7, #255 \n\t" + "and r6, r4, #0x001f \n\t" +#if SK_ARM_ARCH <= 6 + "lsl r5, r4, #21 \n\t" + "lsr r5, r5, #26 \n\t" +#else + "ubfx r5, r4, #5, #6 \n\t" +#endif +#ifdef SK_ARM_HAS_EDSP + "pld [r0, #16] \n\t" +#endif + "lsr r4, r4, #11 \n\t" +#ifdef SK_ARM_HAS_EDSP + "smulbb r6, r6, r7 \n\t" + "smulbb r5, r5, r7 \n\t" + "smulbb r4, r4, r7 \n\t" +#else + "mul r6, r6, r7 \n\t" + "mul r5, r5, r7 \n\t" + "mul r4, r4, r7 \n\t" +#endif +#if SK_ARM_ARCH >= 6 + "uxtb r7, r3, ROR #16 \n\t" + "uxtb ip, r3, ROR #8 \n\t" +#else + "mov ip, #0xff \n\t" + "and r7, ip, r3, ROR #16 \n\t" + "and ip, ip, r3, ROR #8 \n\t" +#endif + "and r3, r3, #0xff \n\t" + "add r6, r6, #16 \n\t" + "add r5, r5, #32 \n\t" + "add r4, r4, #16 \n\t" + "add r6, r6, r6, lsr #5 \n\t" + "add r5, r5, r5, lsr #6 \n\t" + "add r4, r4, r4, lsr #5 \n\t" + "add r6, r7, r6, lsr #5 \n\t" + "add r5, ip, r5, lsr #6 \n\t" + "add r4, r3, r4, lsr #5 \n\t" + "lsr r6, r6, #3 \n\t" + "and r5, r5, #0xfc \n\t" + "and r4, r4, #0xf8 \n\t" + "orr r6, r6, r5, lsl #3 \n\t" + "orr r4, r6, r4, lsl #8 \n\t" + "strh r4, [%[dst]], #2 \n\t" +#ifdef SK_ARM_HAS_EDSP + "pld [r1, #32] \n\t" +#endif + "subs %[count], %[count], #1 \n\t" + "bne 1b \n\t" + "b 4f \n\t" + "3: \n\t" + "subs %[count], %[count], #1 \n\t" + "add %[dst], %[dst], #2 \n\t" + "bne 1b \n\t" + "4: \n\t" + : [dst] "+r" (dst), [src] "+r" (src), [count] "+r" (count) + : + : "memory", "cc", "r3", "r4", "r5", "r6", "r7", "ip" + ); +} + +static void S32A_Opaque_BlitRow32_arm(SkPMColor* SK_RESTRICT dst, + const SkPMColor* SK_RESTRICT src, + int count, U8CPU alpha) { + + SkASSERT(255 == alpha); + + asm volatile ( + "cmp %[count], #0 \n\t" /* comparing count with 0 */ + "beq 3f \n\t" /* if zero exit */ + + "mov ip, #0xff \n\t" /* load the 0xff mask in ip */ + "orr ip, ip, ip, lsl #16 \n\t" /* convert it to 0xff00ff in ip */ + + "cmp %[count], #2 \n\t" /* compare count with 2 */ + "blt 2f \n\t" /* if less than 2 -> single loop */ + + /* Double Loop */ + "1: \n\t" /* */ + "ldm %[src]!, {r5,r6} \n\t" /* load the src(s) at r5-r6 */ + "ldm %[dst], {r7,r8} \n\t" /* loading dst(s) into r7-r8 */ + "lsr r4, r5, #24 \n\t" /* extracting the alpha from source and storing it to r4 */ + + /* ----------- */ + "and r9, ip, r7 \n\t" /* r9 = br masked by ip */ + "rsb r4, r4, #256 \n\t" /* subtracting the alpha from 256 -> r4=scale */ + "and r10, ip, r7, lsr #8 \n\t" /* r10 = ag masked by ip */ + + "mul r9, r9, r4 \n\t" /* br = br * scale */ + "mul r10, r10, r4 \n\t" /* ag = ag * scale */ + "and r9, ip, r9, lsr #8 \n\t" /* lsr br by 8 and mask it */ + + "and r10, r10, ip, lsl #8 \n\t" /* mask ag with reverse mask */ + "lsr r4, r6, #24 \n\t" /* extracting the alpha from source and storing it to r4 */ + "orr r7, r9, r10 \n\t" /* br | ag*/ + + "add r7, r5, r7 \n\t" /* dst = src + calc dest(r7) */ + "rsb r4, r4, #256 \n\t" /* subtracting the alpha from 255 -> r4=scale */ + + /* ----------- */ + "and r9, ip, r8 \n\t" /* r9 = br masked by ip */ + + "and r10, ip, r8, lsr #8 \n\t" /* r10 = ag masked by ip */ + "mul r9, r9, r4 \n\t" /* br = br * scale */ + "sub %[count], %[count], #2 \n\t" + "mul r10, r10, r4 \n\t" /* ag = ag * scale */ + + "and r9, ip, r9, lsr #8 \n\t" /* lsr br by 8 and mask it */ + "and r10, r10, ip, lsl #8 \n\t" /* mask ag with reverse mask */ + "cmp %[count], #1 \n\t" /* comparing count with 1 */ + "orr r8, r9, r10 \n\t" /* br | ag */ + + "add r8, r6, r8 \n\t" /* dst = src + calc dest(r8) */ + + /* ----------------- */ + "stm %[dst]!, {r7,r8} \n\t" /* *dst = r7, increment dst by two (each times 4) */ + /* ----------------- */ + + "bgt 1b \n\t" /* if greater than 1 -> reloop */ + "blt 3f \n\t" /* if less than 1 -> exit */ + + /* Single Loop */ + "2: \n\t" /* */ + "ldr r5, [%[src]], #4 \n\t" /* load the src pointer into r5 r5=src */ + "ldr r7, [%[dst]] \n\t" /* loading dst into r7 */ + "lsr r4, r5, #24 \n\t" /* extracting the alpha from source and storing it to r4 */ + + /* ----------- */ + "and r9, ip, r7 \n\t" /* r9 = br masked by ip */ + "rsb r4, r4, #256 \n\t" /* subtracting the alpha from 256 -> r4=scale */ + + "and r10, ip, r7, lsr #8 \n\t" /* r10 = ag masked by ip */ + "mul r9, r9, r4 \n\t" /* br = br * scale */ + "mul r10, r10, r4 \n\t" /* ag = ag * scale */ + "and r9, ip, r9, lsr #8 \n\t" /* lsr br by 8 and mask it */ + + "and r10, r10, ip, lsl #8 \n\t" /* mask ag */ + "orr r7, r9, r10 \n\t" /* br | ag */ + + "add r7, r5, r7 \n\t" /* *dst = src + calc dest(r7) */ + + /* ----------------- */ + "str r7, [%[dst]], #4 \n\t" /* *dst = r7, increment dst by one (times 4) */ + /* ----------------- */ + + "3: \n\t" /* */ + : [dst] "+r" (dst), [src] "+r" (src), [count] "+r" (count) + : + : "cc", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "ip", "memory" + ); +} + +/* + * ARM asm version of S32A_Blend_BlitRow32 + */ +void S32A_Blend_BlitRow32_arm(SkPMColor* SK_RESTRICT dst, + const SkPMColor* SK_RESTRICT src, + int count, U8CPU alpha) { + asm volatile ( + "cmp %[count], #0 \n\t" /* comparing count with 0 */ + "beq 3f \n\t" /* if zero exit */ + + "mov r12, #0xff \n\t" /* load the 0xff mask in r12 */ + "orr r12, r12, r12, lsl #16 \n\t" /* convert it to 0xff00ff in r12 */ + + /* src1,2_scale */ + "add %[alpha], %[alpha], #1 \n\t" /* loading %[alpha]=src_scale=alpha+1 */ + + "cmp %[count], #2 \n\t" /* comparing count with 2 */ + "blt 2f \n\t" /* if less than 2 -> single loop */ + + /* Double Loop */ + "1: \n\t" /* */ + "ldm %[src]!, {r5, r6} \n\t" /* loading src pointers into r5 and r6 */ + "ldm %[dst], {r7, r8} \n\t" /* loading dst pointers into r7 and r8 */ + + /* dst1_scale and dst2_scale*/ + "lsr r9, r5, #24 \n\t" /* src >> 24 */ + "lsr r10, r6, #24 \n\t" /* src >> 24 */ +#ifdef SK_ARM_HAS_EDSP + "smulbb r9, r9, %[alpha] \n\t" /* r9 = SkMulS16 r9 with src_scale */ + "smulbb r10, r10, %[alpha] \n\t" /* r10 = SkMulS16 r10 with src_scale */ +#else + "mul r9, r9, %[alpha] \n\t" /* r9 = SkMulS16 r9 with src_scale */ + "mul r10, r10, %[alpha] \n\t" /* r10 = SkMulS16 r10 with src_scale */ +#endif + "lsr r9, r9, #8 \n\t" /* r9 >> 8 */ + "lsr r10, r10, #8 \n\t" /* r10 >> 8 */ + "rsb r9, r9, #256 \n\t" /* dst1_scale = r9 = 255 - r9 + 1 */ + "rsb r10, r10, #256 \n\t" /* dst2_scale = r10 = 255 - r10 + 1 */ + + /* ---------------------- */ + + /* src1, src1_scale */ + "and r11, r12, r5, lsr #8 \n\t" /* ag = r11 = r5 masked by r12 lsr by #8 */ + "and r4, r12, r5 \n\t" /* rb = r4 = r5 masked by r12 */ + "mul r11, r11, %[alpha] \n\t" /* ag = r11 times src_scale */ + "mul r4, r4, %[alpha] \n\t" /* rb = r4 times src_scale */ + "and r11, r11, r12, lsl #8 \n\t" /* ag masked by reverse mask (r12) */ + "and r4, r12, r4, lsr #8 \n\t" /* rb masked by mask (r12) */ + "orr r5, r11, r4 \n\t" /* r5 = (src1, src_scale) */ + + /* dst1, dst1_scale */ + "and r11, r12, r7, lsr #8 \n\t" /* ag = r11 = r7 masked by r12 lsr by #8 */ + "and r4, r12, r7 \n\t" /* rb = r4 = r7 masked by r12 */ + "mul r11, r11, r9 \n\t" /* ag = r11 times dst_scale (r9) */ + "mul r4, r4, r9 \n\t" /* rb = r4 times dst_scale (r9) */ + "and r11, r11, r12, lsl #8 \n\t" /* ag masked by reverse mask (r12) */ + "and r4, r12, r4, lsr #8 \n\t" /* rb masked by mask (r12) */ + "orr r9, r11, r4 \n\t" /* r9 = (dst1, dst_scale) */ + + /* ---------------------- */ + "add r9, r5, r9 \n\t" /* *dst = src plus dst both scaled */ + /* ---------------------- */ + + /* ====================== */ + + /* src2, src2_scale */ + "and r11, r12, r6, lsr #8 \n\t" /* ag = r11 = r6 masked by r12 lsr by #8 */ + "and r4, r12, r6 \n\t" /* rb = r4 = r6 masked by r12 */ + "mul r11, r11, %[alpha] \n\t" /* ag = r11 times src_scale */ + "mul r4, r4, %[alpha] \n\t" /* rb = r4 times src_scale */ + "and r11, r11, r12, lsl #8 \n\t" /* ag masked by reverse mask (r12) */ + "and r4, r12, r4, lsr #8 \n\t" /* rb masked by mask (r12) */ + "orr r6, r11, r4 \n\t" /* r6 = (src2, src_scale) */ + + /* dst2, dst2_scale */ + "and r11, r12, r8, lsr #8 \n\t" /* ag = r11 = r8 masked by r12 lsr by #8 */ + "and r4, r12, r8 \n\t" /* rb = r4 = r8 masked by r12 */ + "mul r11, r11, r10 \n\t" /* ag = r11 times dst_scale (r10) */ + "mul r4, r4, r10 \n\t" /* rb = r4 times dst_scale (r6) */ + "and r11, r11, r12, lsl #8 \n\t" /* ag masked by reverse mask (r12) */ + "and r4, r12, r4, lsr #8 \n\t" /* rb masked by mask (r12) */ + "orr r10, r11, r4 \n\t" /* r10 = (dst2, dst_scale) */ + + "sub %[count], %[count], #2 \n\t" /* decrease count by 2 */ + /* ---------------------- */ + "add r10, r6, r10 \n\t" /* *dst = src plus dst both scaled */ + /* ---------------------- */ + "cmp %[count], #1 \n\t" /* compare count with 1 */ + /* ----------------- */ + "stm %[dst]!, {r9, r10} \n\t" /* copy r9 and r10 to r7 and r8 respectively */ + /* ----------------- */ + + "bgt 1b \n\t" /* if %[count] greater than 1 reloop */ + "blt 3f \n\t" /* if %[count] less than 1 exit */ + /* else get into the single loop */ + /* Single Loop */ + "2: \n\t" /* */ + "ldr r5, [%[src]], #4 \n\t" /* loading src pointer into r5: r5=src */ + "ldr r7, [%[dst]] \n\t" /* loading dst pointer into r7: r7=dst */ + + "lsr r6, r5, #24 \n\t" /* src >> 24 */ + "and r8, r12, r5, lsr #8 \n\t" /* ag = r8 = r5 masked by r12 lsr by #8 */ +#ifdef SK_ARM_HAS_EDSP + "smulbb r6, r6, %[alpha] \n\t" /* r6 = SkMulS16 with src_scale */ +#else + "mul r6, r6, %[alpha] \n\t" /* r6 = SkMulS16 with src_scale */ +#endif + "and r9, r12, r5 \n\t" /* rb = r9 = r5 masked by r12 */ + "lsr r6, r6, #8 \n\t" /* r6 >> 8 */ + "mul r8, r8, %[alpha] \n\t" /* ag = r8 times scale */ + "rsb r6, r6, #256 \n\t" /* r6 = 255 - r6 + 1 */ + + /* src, src_scale */ + "mul r9, r9, %[alpha] \n\t" /* rb = r9 times scale */ + "and r8, r8, r12, lsl #8 \n\t" /* ag masked by reverse mask (r12) */ + "and r9, r12, r9, lsr #8 \n\t" /* rb masked by mask (r12) */ + "orr r10, r8, r9 \n\t" /* r10 = (scr, src_scale) */ + + /* dst, dst_scale */ + "and r8, r12, r7, lsr #8 \n\t" /* ag = r8 = r7 masked by r12 lsr by #8 */ + "and r9, r12, r7 \n\t" /* rb = r9 = r7 masked by r12 */ + "mul r8, r8, r6 \n\t" /* ag = r8 times scale (r6) */ + "mul r9, r9, r6 \n\t" /* rb = r9 times scale (r6) */ + "and r8, r8, r12, lsl #8 \n\t" /* ag masked by reverse mask (r12) */ + "and r9, r12, r9, lsr #8 \n\t" /* rb masked by mask (r12) */ + "orr r7, r8, r9 \n\t" /* r7 = (dst, dst_scale) */ + + "add r10, r7, r10 \n\t" /* *dst = src plus dst both scaled */ + + /* ----------------- */ + "str r10, [%[dst]], #4 \n\t" /* *dst = r10, postincrement dst by one (times 4) */ + /* ----------------- */ + + "3: \n\t" /* */ + : [dst] "+r" (dst), [src] "+r" (src), [count] "+r" (count), [alpha] "+r" (alpha) + : + : "cc", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "memory" + ); + +} + +/////////////////////////////////////////////////////////////////////////////// + +static const SkBlitRow::Proc sk_blitrow_platform_565_procs_arm[] = { + // no dither + // NOTE: For the functions below, we don't have a special version + // that assumes that each source pixel is opaque. But our S32A is + // still faster than the default, so use it. + S32A_D565_Opaque, // S32_D565_Opaque + NULL, // S32_D565_Blend + S32A_D565_Opaque, // S32A_D565_Opaque + NULL, // S32A_D565_Blend + + // dither + NULL, // S32_D565_Opaque_Dither + NULL, // S32_D565_Blend_Dither + NULL, // S32A_D565_Opaque_Dither + NULL, // S32A_D565_Blend_Dither +}; + +static const SkBlitRow::Proc32 sk_blitrow_platform_32_procs_arm[] = { + NULL, // S32_Opaque, + NULL, // S32_Blend, + S32A_Opaque_BlitRow32_arm, // S32A_Opaque, + S32A_Blend_BlitRow32_arm // S32A_Blend +}; + +#endif // USE_ARM_CODE + +SkBlitRow::Proc SkBlitRow::PlatformProcs565(unsigned flags) { + return SK_ARM_NEON_WRAP(sk_blitrow_platform_565_procs_arm)[flags]; +} + +SkBlitRow::Proc32 SkBlitRow::PlatformProcs32(unsigned flags) { + return SK_ARM_NEON_WRAP(sk_blitrow_platform_32_procs_arm)[flags]; +} + +/////////////////////////////////////////////////////////////////////////////// +#define Color32_arm NULL +SkBlitRow::ColorProc SkBlitRow::PlatformColorProc() { + return SK_ARM_NEON_WRAP(Color32_arm); +} + +SkBlitRow::ColorRectProc PlatformColorRectProcFactory() { + return NULL; +}