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gerrit-public.fairphone.software / platform / external / skia / 3cb969f27de56df0d9116c13f18bd31ee0715f1a / . / src / opts / SkBitmapProcState_opts_arm.cpp
blob: 20d62e14551d7bc370c2abaeb2761fdef1349c6a [file] [log] [blame]
epoger@google.comec3ed6a2011-07-28 14:26:00 +0000[diff] [blame]1
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]2/*
epoger@google.comec3ed6a2011-07-28 14:26:00 +0000[diff] [blame]3 * Copyright 2009 The Android Open Source Project
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]4 *
epoger@google.comec3ed6a2011-07-28 14:26:00 +0000[diff] [blame]5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]7 */
8
epoger@google.comec3ed6a2011-07-28 14:26:00 +0000[diff] [blame]9
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]10#include "SkBitmapProcState.h"
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]11#include "SkColorPriv.h"
12#include "SkUtils.h"
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]13
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]14#if __ARM_ARCH__ >= 6 && !defined(SK_CPU_BENDIAN)
vandebo@chromium.orgdb8b51c2011-05-03 02:23:11 +0000[diff] [blame]15void SI8_D16_nofilter_DX_arm(
16 const SkBitmapProcState& s,
17 const uint32_t* SK_RESTRICT xy,
18 int count,
19 uint16_t* SK_RESTRICT colors) __attribute__((optimize("O1")));
20
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]21void SI8_D16_nofilter_DX_arm(const SkBitmapProcState& s,
22 const uint32_t* SK_RESTRICT xy,
23 int count, uint16_t* SK_RESTRICT colors) {
24 SkASSERT(count > 0 && colors != NULL);
25 SkASSERT(s.fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask));
26 SkASSERT(s.fDoFilter == false);
27
28 const uint16_t* SK_RESTRICT table = s.fBitmap->getColorTable()->lock16BitCache();
29 const uint8_t* SK_RESTRICT srcAddr = (const uint8_t*)s.fBitmap->getPixels();
30
31 // buffer is y32, x16, x16, x16, x16, x16
32 // bump srcAddr to the proper row, since we're told Y never changes
33 SkASSERT((unsigned)xy[0] < (unsigned)s.fBitmap->height());
34 srcAddr = (const uint8_t*)((const char*)srcAddr +
35 xy[0] * s.fBitmap->rowBytes());
36
37 uint8_t src;
38
39 if (1 == s.fBitmap->width()) {
40 src = srcAddr[0];
41 uint16_t dstValue = table[src];
42 sk_memset16(colors, dstValue, count);
43 } else {
44 int i;
45 int count8 = count >> 3;
46 const uint16_t* SK_RESTRICT xx = (const uint16_t*)(xy + 1);
47
48 asm volatile (
49 "cmp %[count8], #0 \n\t" // compare loop counter with 0
50 "beq 2f \n\t" // if loop counter == 0, exit
51 "1: \n\t"
52 "ldmia %[xx]!, {r5, r7, r9, r11} \n\t" // load ptrs to pixels 0-7
53 "subs %[count8], %[count8], #1 \n\t" // decrement loop counter
54 "uxth r4, r5 \n\t" // extract ptr 0
55 "mov r5, r5, lsr #16 \n\t" // extract ptr 1
56 "uxth r6, r7 \n\t" // extract ptr 2
57 "mov r7, r7, lsr #16 \n\t" // extract ptr 3
58 "ldrb r4, [%[srcAddr], r4] \n\t" // load pixel 0 from image
59 "uxth r8, r9 \n\t" // extract ptr 4
60 "ldrb r5, [%[srcAddr], r5] \n\t" // load pixel 1 from image
61 "mov r9, r9, lsr #16 \n\t" // extract ptr 5
62 "ldrb r6, [%[srcAddr], r6] \n\t" // load pixel 2 from image
63 "uxth r10, r11 \n\t" // extract ptr 6
64 "ldrb r7, [%[srcAddr], r7] \n\t" // load pixel 3 from image
65 "mov r11, r11, lsr #16 \n\t" // extract ptr 7
66 "ldrb r8, [%[srcAddr], r8] \n\t" // load pixel 4 from image
67 "add r4, r4, r4 \n\t" // double pixel 0 for RGB565 lookup
68 "ldrb r9, [%[srcAddr], r9] \n\t" // load pixel 5 from image
69 "add r5, r5, r5 \n\t" // double pixel 1 for RGB565 lookup
70 "ldrb r10, [%[srcAddr], r10] \n\t" // load pixel 6 from image
71 "add r6, r6, r6 \n\t" // double pixel 2 for RGB565 lookup
72 "ldrb r11, [%[srcAddr], r11] \n\t" // load pixel 7 from image
73 "add r7, r7, r7 \n\t" // double pixel 3 for RGB565 lookup
74 "ldrh r4, [%[table], r4] \n\t" // load pixel 0 RGB565 from colmap
75 "add r8, r8, r8 \n\t" // double pixel 4 for RGB565 lookup
76 "ldrh r5, [%[table], r5] \n\t" // load pixel 1 RGB565 from colmap
77 "add r9, r9, r9 \n\t" // double pixel 5 for RGB565 lookup
78 "ldrh r6, [%[table], r6] \n\t" // load pixel 2 RGB565 from colmap
79 "add r10, r10, r10 \n\t" // double pixel 6 for RGB565 lookup
80 "ldrh r7, [%[table], r7] \n\t" // load pixel 3 RGB565 from colmap
81 "add r11, r11, r11 \n\t" // double pixel 7 for RGB565 lookup
82 "ldrh r8, [%[table], r8] \n\t" // load pixel 4 RGB565 from colmap
83 "ldrh r9, [%[table], r9] \n\t" // load pixel 5 RGB565 from colmap
84 "ldrh r10, [%[table], r10] \n\t" // load pixel 6 RGB565 from colmap
85 "ldrh r11, [%[table], r11] \n\t" // load pixel 7 RGB565 from colmap
86 "pkhbt r5, r4, r5, lsl #16 \n\t" // pack pixels 0 and 1
87 "pkhbt r6, r6, r7, lsl #16 \n\t" // pack pixels 2 and 3
88 "pkhbt r8, r8, r9, lsl #16 \n\t" // pack pixels 4 and 5
89 "pkhbt r10, r10, r11, lsl #16 \n\t" // pack pixels 6 and 7
90 "stmia %[colors]!, {r5, r6, r8, r10} \n\t" // store last 8 pixels
91 "bgt 1b \n\t" // loop if counter > 0
92 "2: \n\t"
93 : [xx] "+r" (xx), [count8] "+r" (count8), [colors] "+r" (colors)
94 : [table] "r" (table), [srcAddr] "r" (srcAddr)
95 : "memory", "cc", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11"
96 );
97
98 for (i = (count & 7); i > 0; --i) {
99 src = srcAddr[*xx++]; *colors++ = table[src];
100 }
101 }
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]102
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]103 s.fBitmap->getColorTable()->unlock16BitCache();
104}
105
vandebo@chromium.orgdb8b51c2011-05-03 02:23:11 +0000[diff] [blame]106void SI8_opaque_D32_nofilter_DX_arm(
107 const SkBitmapProcState& s,
108 const uint32_t* SK_RESTRICT xy,
109 int count,
110 SkPMColor* SK_RESTRICT colors) __attribute__((optimize("O1")));
111
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]112void SI8_opaque_D32_nofilter_DX_arm(const SkBitmapProcState& s,
113 const uint32_t* SK_RESTRICT xy,
114 int count, SkPMColor* SK_RESTRICT colors) {
115 SkASSERT(count > 0 && colors != NULL);
116 SkASSERT(s.fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask));
117 SkASSERT(s.fDoFilter == false);
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]118
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]119 const SkPMColor* SK_RESTRICT table = s.fBitmap->getColorTable()->lockColors();
120 const uint8_t* SK_RESTRICT srcAddr = (const uint8_t*)s.fBitmap->getPixels();
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]121
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]122 // buffer is y32, x16, x16, x16, x16, x16
123 // bump srcAddr to the proper row, since we're told Y never changes
124 SkASSERT((unsigned)xy[0] < (unsigned)s.fBitmap->height());
125 srcAddr = (const uint8_t*)((const char*)srcAddr + xy[0] * s.fBitmap->rowBytes());
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]126
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]127 if (1 == s.fBitmap->width()) {
128 uint8_t src = srcAddr[0];
129 SkPMColor dstValue = table[src];
130 sk_memset32(colors, dstValue, count);
131 } else {
132 const uint16_t* xx = (const uint16_t*)(xy + 1);
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]133
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]134 asm volatile (
135 "subs %[count], %[count], #8 \n\t" // decrement count by 8, set flags
136 "blt 2f \n\t" // if count < 0, branch to singles
137 "1: \n\t" // eights loop
138 "ldmia %[xx]!, {r5, r7, r9, r11} \n\t" // load ptrs to pixels 0-7
139 "uxth r4, r5 \n\t" // extract ptr 0
140 "mov r5, r5, lsr #16 \n\t" // extract ptr 1
141 "uxth r6, r7 \n\t" // extract ptr 2
142 "mov r7, r7, lsr #16 \n\t" // extract ptr 3
143 "ldrb r4, [%[srcAddr], r4] \n\t" // load pixel 0 from image
144 "uxth r8, r9 \n\t" // extract ptr 4
145 "ldrb r5, [%[srcAddr], r5] \n\t" // load pixel 1 from image
146 "mov r9, r9, lsr #16 \n\t" // extract ptr 5
147 "ldrb r6, [%[srcAddr], r6] \n\t" // load pixel 2 from image
148 "uxth r10, r11 \n\t" // extract ptr 6
149 "ldrb r7, [%[srcAddr], r7] \n\t" // load pixel 3 from image
150 "mov r11, r11, lsr #16 \n\t" // extract ptr 7
151 "ldrb r8, [%[srcAddr], r8] \n\t" // load pixel 4 from image
152 "ldrb r9, [%[srcAddr], r9] \n\t" // load pixel 5 from image
153 "ldrb r10, [%[srcAddr], r10] \n\t" // load pixel 6 from image
154 "ldrb r11, [%[srcAddr], r11] \n\t" // load pixel 7 from image
155 "ldr r4, [%[table], r4, lsl #2] \n\t" // load pixel 0 SkPMColor from colmap
156 "ldr r5, [%[table], r5, lsl #2] \n\t" // load pixel 1 SkPMColor from colmap
157 "ldr r6, [%[table], r6, lsl #2] \n\t" // load pixel 2 SkPMColor from colmap
158 "ldr r7, [%[table], r7, lsl #2] \n\t" // load pixel 3 SkPMColor from colmap
159 "ldr r8, [%[table], r8, lsl #2] \n\t" // load pixel 4 SkPMColor from colmap
160 "ldr r9, [%[table], r9, lsl #2] \n\t" // load pixel 5 SkPMColor from colmap
161 "ldr r10, [%[table], r10, lsl #2] \n\t" // load pixel 6 SkPMColor from colmap
162 "ldr r11, [%[table], r11, lsl #2] \n\t" // load pixel 7 SkPMColor from colmap
163 "subs %[count], %[count], #8 \n\t" // decrement loop counter
164 "stmia %[colors]!, {r4-r11} \n\t" // store 8 pixels
165 "bge 1b \n\t" // loop if counter >= 0
166 "2: \n\t"
167 "adds %[count], %[count], #8 \n\t" // fix up counter, set flags
168 "beq 4f \n\t" // if count == 0, branch to exit
169 "3: \n\t" // singles loop
170 "ldrh r4, [%[xx]], #2 \n\t" // load pixel ptr
171 "subs %[count], %[count], #1 \n\t" // decrement loop counter
172 "ldrb r5, [%[srcAddr], r4] \n\t" // load pixel from image
173 "ldr r6, [%[table], r5, lsl #2] \n\t" // load SkPMColor from colmap
174 "str r6, [%[colors]], #4 \n\t" // store pixel, update ptr
175 "bne 3b \n\t" // loop if counter != 0
176 "4: \n\t" // exit
177 : [xx] "+r" (xx), [count] "+r" (count), [colors] "+r" (colors)
178 : [table] "r" (table), [srcAddr] "r" (srcAddr)
179 : "memory", "cc", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11"
180 );
181 }
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]182
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]183 s.fBitmap->getColorTable()->unlockColors(false);
184}
185#endif //__ARM_ARCH__ >= 6 && !defined(SK_CPU_BENDIAN)
186
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]187///////////////////////////////////////////////////////////////////////////////
188
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]189/* If we replace a sampleproc, then we null-out the associated shaderproc,
190 otherwise the shader won't even look at the matrix/sampler
191 */
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]192void SkBitmapProcState::platformProcs() {
193 bool doFilter = fDoFilter;
194 bool isOpaque = 256 == fAlphaScale;
195 bool justDx = false;
196
197 if (fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask)) {
198 justDx = true;
199 }
200
201 switch (fBitmap->config()) {
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]202 case SkBitmap::kIndex8_Config:
203#if __ARM_ARCH__ >= 6 && !defined(SK_CPU_BENDIAN)
204 if (justDx && !doFilter) {
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]205#if 0 /* crashing on android device */
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]206 fSampleProc16 = SI8_D16_nofilter_DX_arm;
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]207 fShaderProc16 = NULL;
208#endif
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]209 if (isOpaque) {
reed@android.com152f7482009-08-07 19:14:34 +0000[diff] [blame]210 // this one is only very slighty faster than the C version
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]211 fSampleProc32 = SI8_opaque_D32_nofilter_DX_arm;
reed@android.com6123e472009-08-04 01:52:27 +0000[diff] [blame]212 fShaderProc32 = NULL;
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]213 }
214 }
215#endif
reed@android.com152f7482009-08-07 19:14:34 +0000[diff] [blame]216 break;
reed@android.coma0bd7f42009-08-03 17:22:46 +0000[diff] [blame]217 default:
218 break;
219 }
220}
221