| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifdef ANDROID |
| #include <machine/cpu-features.h> |
| #endif |
| |
| #include "SkBitmapProcState.h" |
| #include "SkColorPriv.h" |
| #include "SkUtils.h" |
| |
| #if __ARM_ARCH__ >= 6 && !defined(SK_CPU_BENDIAN) |
| void SI8_D16_nofilter_DX_arm( |
| const SkBitmapProcState& s, |
| const uint32_t* SK_RESTRICT xy, |
| int count, |
| uint16_t* SK_RESTRICT colors) __attribute__((optimize("O1"))); |
| |
| void SI8_D16_nofilter_DX_arm(const SkBitmapProcState& s, |
| const uint32_t* SK_RESTRICT xy, |
| int count, uint16_t* SK_RESTRICT colors) { |
| SkASSERT(count > 0 && colors != NULL); |
| SkASSERT(s.fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask)); |
| SkASSERT(s.fDoFilter == false); |
| |
| const uint16_t* SK_RESTRICT table = s.fBitmap->getColorTable()->lock16BitCache(); |
| const uint8_t* SK_RESTRICT srcAddr = (const uint8_t*)s.fBitmap->getPixels(); |
| |
| // buffer is y32, x16, x16, x16, x16, x16 |
| // bump srcAddr to the proper row, since we're told Y never changes |
| SkASSERT((unsigned)xy[0] < (unsigned)s.fBitmap->height()); |
| srcAddr = (const uint8_t*)((const char*)srcAddr + |
| xy[0] * s.fBitmap->rowBytes()); |
| |
| uint8_t src; |
| |
| if (1 == s.fBitmap->width()) { |
| src = srcAddr[0]; |
| uint16_t dstValue = table[src]; |
| sk_memset16(colors, dstValue, count); |
| } else { |
| int i; |
| int count8 = count >> 3; |
| const uint16_t* SK_RESTRICT xx = (const uint16_t*)(xy + 1); |
| |
| asm volatile ( |
| "cmp %[count8], #0 \n\t" // compare loop counter with 0 |
| "beq 2f \n\t" // if loop counter == 0, exit |
| "1: \n\t" |
| "ldmia %[xx]!, {r5, r7, r9, r11} \n\t" // load ptrs to pixels 0-7 |
| "subs %[count8], %[count8], #1 \n\t" // decrement loop counter |
| "uxth r4, r5 \n\t" // extract ptr 0 |
| "mov r5, r5, lsr #16 \n\t" // extract ptr 1 |
| "uxth r6, r7 \n\t" // extract ptr 2 |
| "mov r7, r7, lsr #16 \n\t" // extract ptr 3 |
| "ldrb r4, [%[srcAddr], r4] \n\t" // load pixel 0 from image |
| "uxth r8, r9 \n\t" // extract ptr 4 |
| "ldrb r5, [%[srcAddr], r5] \n\t" // load pixel 1 from image |
| "mov r9, r9, lsr #16 \n\t" // extract ptr 5 |
| "ldrb r6, [%[srcAddr], r6] \n\t" // load pixel 2 from image |
| "uxth r10, r11 \n\t" // extract ptr 6 |
| "ldrb r7, [%[srcAddr], r7] \n\t" // load pixel 3 from image |
| "mov r11, r11, lsr #16 \n\t" // extract ptr 7 |
| "ldrb r8, [%[srcAddr], r8] \n\t" // load pixel 4 from image |
| "add r4, r4, r4 \n\t" // double pixel 0 for RGB565 lookup |
| "ldrb r9, [%[srcAddr], r9] \n\t" // load pixel 5 from image |
| "add r5, r5, r5 \n\t" // double pixel 1 for RGB565 lookup |
| "ldrb r10, [%[srcAddr], r10] \n\t" // load pixel 6 from image |
| "add r6, r6, r6 \n\t" // double pixel 2 for RGB565 lookup |
| "ldrb r11, [%[srcAddr], r11] \n\t" // load pixel 7 from image |
| "add r7, r7, r7 \n\t" // double pixel 3 for RGB565 lookup |
| "ldrh r4, [%[table], r4] \n\t" // load pixel 0 RGB565 from colmap |
| "add r8, r8, r8 \n\t" // double pixel 4 for RGB565 lookup |
| "ldrh r5, [%[table], r5] \n\t" // load pixel 1 RGB565 from colmap |
| "add r9, r9, r9 \n\t" // double pixel 5 for RGB565 lookup |
| "ldrh r6, [%[table], r6] \n\t" // load pixel 2 RGB565 from colmap |
| "add r10, r10, r10 \n\t" // double pixel 6 for RGB565 lookup |
| "ldrh r7, [%[table], r7] \n\t" // load pixel 3 RGB565 from colmap |
| "add r11, r11, r11 \n\t" // double pixel 7 for RGB565 lookup |
| "ldrh r8, [%[table], r8] \n\t" // load pixel 4 RGB565 from colmap |
| "ldrh r9, [%[table], r9] \n\t" // load pixel 5 RGB565 from colmap |
| "ldrh r10, [%[table], r10] \n\t" // load pixel 6 RGB565 from colmap |
| "ldrh r11, [%[table], r11] \n\t" // load pixel 7 RGB565 from colmap |
| "pkhbt r5, r4, r5, lsl #16 \n\t" // pack pixels 0 and 1 |
| "pkhbt r6, r6, r7, lsl #16 \n\t" // pack pixels 2 and 3 |
| "pkhbt r8, r8, r9, lsl #16 \n\t" // pack pixels 4 and 5 |
| "pkhbt r10, r10, r11, lsl #16 \n\t" // pack pixels 6 and 7 |
| "stmia %[colors]!, {r5, r6, r8, r10} \n\t" // store last 8 pixels |
| "bgt 1b \n\t" // loop if counter > 0 |
| "2: \n\t" |
| : [xx] "+r" (xx), [count8] "+r" (count8), [colors] "+r" (colors) |
| : [table] "r" (table), [srcAddr] "r" (srcAddr) |
| : "memory", "cc", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11" |
| ); |
| |
| for (i = (count & 7); i > 0; --i) { |
| src = srcAddr[*xx++]; *colors++ = table[src]; |
| } |
| } |
| |
| s.fBitmap->getColorTable()->unlock16BitCache(); |
| } |
| |
| void SI8_opaque_D32_nofilter_DX_arm( |
| const SkBitmapProcState& s, |
| const uint32_t* SK_RESTRICT xy, |
| int count, |
| SkPMColor* SK_RESTRICT colors) __attribute__((optimize("O1"))); |
| |
| void SI8_opaque_D32_nofilter_DX_arm(const SkBitmapProcState& s, |
| const uint32_t* SK_RESTRICT xy, |
| int count, SkPMColor* SK_RESTRICT colors) { |
| SkASSERT(count > 0 && colors != NULL); |
| SkASSERT(s.fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask)); |
| SkASSERT(s.fDoFilter == false); |
| |
| const SkPMColor* SK_RESTRICT table = s.fBitmap->getColorTable()->lockColors(); |
| const uint8_t* SK_RESTRICT srcAddr = (const uint8_t*)s.fBitmap->getPixels(); |
| |
| // buffer is y32, x16, x16, x16, x16, x16 |
| // bump srcAddr to the proper row, since we're told Y never changes |
| SkASSERT((unsigned)xy[0] < (unsigned)s.fBitmap->height()); |
| srcAddr = (const uint8_t*)((const char*)srcAddr + xy[0] * s.fBitmap->rowBytes()); |
| |
| if (1 == s.fBitmap->width()) { |
| uint8_t src = srcAddr[0]; |
| SkPMColor dstValue = table[src]; |
| sk_memset32(colors, dstValue, count); |
| } else { |
| const uint16_t* xx = (const uint16_t*)(xy + 1); |
| |
| asm volatile ( |
| "subs %[count], %[count], #8 \n\t" // decrement count by 8, set flags |
| "blt 2f \n\t" // if count < 0, branch to singles |
| "1: \n\t" // eights loop |
| "ldmia %[xx]!, {r5, r7, r9, r11} \n\t" // load ptrs to pixels 0-7 |
| "uxth r4, r5 \n\t" // extract ptr 0 |
| "mov r5, r5, lsr #16 \n\t" // extract ptr 1 |
| "uxth r6, r7 \n\t" // extract ptr 2 |
| "mov r7, r7, lsr #16 \n\t" // extract ptr 3 |
| "ldrb r4, [%[srcAddr], r4] \n\t" // load pixel 0 from image |
| "uxth r8, r9 \n\t" // extract ptr 4 |
| "ldrb r5, [%[srcAddr], r5] \n\t" // load pixel 1 from image |
| "mov r9, r9, lsr #16 \n\t" // extract ptr 5 |
| "ldrb r6, [%[srcAddr], r6] \n\t" // load pixel 2 from image |
| "uxth r10, r11 \n\t" // extract ptr 6 |
| "ldrb r7, [%[srcAddr], r7] \n\t" // load pixel 3 from image |
| "mov r11, r11, lsr #16 \n\t" // extract ptr 7 |
| "ldrb r8, [%[srcAddr], r8] \n\t" // load pixel 4 from image |
| "ldrb r9, [%[srcAddr], r9] \n\t" // load pixel 5 from image |
| "ldrb r10, [%[srcAddr], r10] \n\t" // load pixel 6 from image |
| "ldrb r11, [%[srcAddr], r11] \n\t" // load pixel 7 from image |
| "ldr r4, [%[table], r4, lsl #2] \n\t" // load pixel 0 SkPMColor from colmap |
| "ldr r5, [%[table], r5, lsl #2] \n\t" // load pixel 1 SkPMColor from colmap |
| "ldr r6, [%[table], r6, lsl #2] \n\t" // load pixel 2 SkPMColor from colmap |
| "ldr r7, [%[table], r7, lsl #2] \n\t" // load pixel 3 SkPMColor from colmap |
| "ldr r8, [%[table], r8, lsl #2] \n\t" // load pixel 4 SkPMColor from colmap |
| "ldr r9, [%[table], r9, lsl #2] \n\t" // load pixel 5 SkPMColor from colmap |
| "ldr r10, [%[table], r10, lsl #2] \n\t" // load pixel 6 SkPMColor from colmap |
| "ldr r11, [%[table], r11, lsl #2] \n\t" // load pixel 7 SkPMColor from colmap |
| "subs %[count], %[count], #8 \n\t" // decrement loop counter |
| "stmia %[colors]!, {r4-r11} \n\t" // store 8 pixels |
| "bge 1b \n\t" // loop if counter >= 0 |
| "2: \n\t" |
| "adds %[count], %[count], #8 \n\t" // fix up counter, set flags |
| "beq 4f \n\t" // if count == 0, branch to exit |
| "3: \n\t" // singles loop |
| "ldrh r4, [%[xx]], #2 \n\t" // load pixel ptr |
| "subs %[count], %[count], #1 \n\t" // decrement loop counter |
| "ldrb r5, [%[srcAddr], r4] \n\t" // load pixel from image |
| "ldr r6, [%[table], r5, lsl #2] \n\t" // load SkPMColor from colmap |
| "str r6, [%[colors]], #4 \n\t" // store pixel, update ptr |
| "bne 3b \n\t" // loop if counter != 0 |
| "4: \n\t" // exit |
| : [xx] "+r" (xx), [count] "+r" (count), [colors] "+r" (colors) |
| : [table] "r" (table), [srcAddr] "r" (srcAddr) |
| : "memory", "cc", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11" |
| ); |
| } |
| |
| s.fBitmap->getColorTable()->unlockColors(false); |
| } |
| #endif //__ARM_ARCH__ >= 6 && !defined(SK_CPU_BENDIAN) |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| /* If we replace a sampleproc, then we null-out the associated shaderproc, |
| otherwise the shader won't even look at the matrix/sampler |
| */ |
| void SkBitmapProcState::platformProcs() { |
| bool doFilter = fDoFilter; |
| bool isOpaque = 256 == fAlphaScale; |
| bool justDx = false; |
| |
| if (fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask)) { |
| justDx = true; |
| } |
| |
| switch (fBitmap->config()) { |
| case SkBitmap::kIndex8_Config: |
| #if __ARM_ARCH__ >= 6 && !defined(SK_CPU_BENDIAN) |
| if (justDx && !doFilter) { |
| #if 0 /* crashing on android device */ |
| fSampleProc16 = SI8_D16_nofilter_DX_arm; |
| fShaderProc16 = NULL; |
| #endif |
| if (isOpaque) { |
| // this one is only very slighty faster than the C version |
| fSampleProc32 = SI8_opaque_D32_nofilter_DX_arm; |
| fShaderProc32 = NULL; |
| } |
| } |
| #endif |
| break; |
| default: |
| break; |
| } |
| } |
| |
