epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2011 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 8 | #include "SkBitmapProcState.h" |
| 9 | #include "SkColorPriv.h" |
| 10 | #include "SkFilterProc.h" |
| 11 | #include "SkPaint.h" |
| 12 | #include "SkShader.h" // for tilemodes |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 13 | #include "SkUtilsArm.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 14 | |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 15 | #if !SK_ARM_NEON_IS_NONE |
| 16 | // These are defined in src/opts/SkBitmapProcState_arm_neon.cpp |
| 17 | extern const SkBitmapProcState::SampleProc16 gSkBitmapProcStateSample16_neon[]; |
| 18 | extern const SkBitmapProcState::SampleProc32 gSkBitmapProcStateSample32_neon[]; |
| 19 | extern void S16_D16_filter_DX_neon(const SkBitmapProcState&, const uint32_t*, int, uint16_t*); |
| 20 | extern void Clamp_S16_D16_filter_DX_shaderproc_neon(const SkBitmapProcState&, int, int, uint16_t*, int); |
| 21 | extern void Repeat_S16_D16_filter_DX_shaderproc_neon(const SkBitmapProcState&, int, int, uint16_t*, int); |
| 22 | extern void SI8_opaque_D32_filter_DX_neon(const SkBitmapProcState&, const uint32_t*, int, SkPMColor*); |
| 23 | extern void SI8_opaque_D32_filter_DX_shaderproc_neon(const SkBitmapProcState&, int, int, uint32_t*, int); |
| 24 | extern void Clamp_SI8_opaque_D32_filter_DX_shaderproc_neon(const SkBitmapProcState&, int, int, uint32_t*, int); |
| 25 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 26 | |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 27 | #if !SK_ARM_NEON_IS_ALWAYS |
| 28 | #define NAME_WRAP(x) x |
| 29 | #include "SkBitmapProcState_filter.h" |
| 30 | #include "SkBitmapProcState_procs.h" |
| 31 | #endif |
reed@android.com | b577b41 | 2009-10-27 17:49:32 +0000 | [diff] [blame] | 32 | |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 33 | /////////////////////////////////////////////////////////////////////////////// |
| 34 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 35 | static bool valid_for_filtering(unsigned dimension) { |
| 36 | // for filtering, width and height must fit in 14bits, since we use steal |
| 37 | // 2 bits from each to store our 4bit subpixel data |
| 38 | return (dimension & ~0x3FFF) == 0; |
| 39 | } |
| 40 | |
| 41 | bool SkBitmapProcState::chooseProcs(const SkMatrix& inv, const SkPaint& paint) { |
| 42 | if (fOrigBitmap.width() == 0 || fOrigBitmap.height() == 0) { |
| 43 | return false; |
| 44 | } |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 45 | |
reed@android.com | 07d1f00 | 2009-08-13 19:35:48 +0000 | [diff] [blame] | 46 | const SkMatrix* m; |
| 47 | bool trivial_matrix = (inv.getType() & ~SkMatrix::kTranslate_Mask) == 0; |
| 48 | bool clamp_clamp = SkShader::kClamp_TileMode == fTileModeX && |
| 49 | SkShader::kClamp_TileMode == fTileModeY; |
| 50 | |
| 51 | if (clamp_clamp || trivial_matrix) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 52 | m = &inv; |
| 53 | } else { |
| 54 | fUnitInvMatrix = inv; |
| 55 | fUnitInvMatrix.postIDiv(fOrigBitmap.width(), fOrigBitmap.height()); |
| 56 | m = &fUnitInvMatrix; |
| 57 | } |
reed@android.com | 07d1f00 | 2009-08-13 19:35:48 +0000 | [diff] [blame] | 58 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 59 | fBitmap = &fOrigBitmap; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 60 | if (fOrigBitmap.hasMipMap()) { |
| 61 | int shift = fOrigBitmap.extractMipLevel(&fMipBitmap, |
| 62 | SkScalarToFixed(m->getScaleX()), |
| 63 | SkScalarToFixed(m->getSkewY())); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 64 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 65 | if (shift > 0) { |
| 66 | if (m != &fUnitInvMatrix) { |
| 67 | fUnitInvMatrix = *m; |
| 68 | m = &fUnitInvMatrix; |
| 69 | } |
| 70 | |
| 71 | SkScalar scale = SkFixedToScalar(SK_Fixed1 >> shift); |
| 72 | fUnitInvMatrix.postScale(scale, scale); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 73 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 74 | // now point here instead of fOrigBitmap |
| 75 | fBitmap = &fMipBitmap; |
| 76 | } |
| 77 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 78 | |
| 79 | fInvMatrix = m; |
| 80 | fInvProc = m->getMapXYProc(); |
| 81 | fInvType = m->getType(); |
| 82 | fInvSx = SkScalarToFixed(m->getScaleX()); |
reed@google.com | 4bc0a9d | 2012-03-07 21:47:41 +0000 | [diff] [blame] | 83 | fInvSxFractionalInt = SkScalarToFractionalInt(m->getScaleX()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 84 | fInvKy = SkScalarToFixed(m->getSkewY()); |
reed@google.com | 411215a | 2012-03-08 20:13:46 +0000 | [diff] [blame] | 85 | fInvKyFractionalInt = SkScalarToFractionalInt(m->getSkewY()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 86 | |
| 87 | fAlphaScale = SkAlpha255To256(paint.getAlpha()); |
| 88 | |
| 89 | // pick-up filtering from the paint, but only if the matrix is |
| 90 | // more complex than identity/translate (i.e. no need to pay the cost |
| 91 | // of filtering if we're not scaled etc.). |
| 92 | // note: we explicitly check inv, since m might be scaled due to unitinv |
| 93 | // trickery, but we don't want to see that for this test |
| 94 | fDoFilter = paint.isFilterBitmap() && |
| 95 | (inv.getType() > SkMatrix::kTranslate_Mask && |
| 96 | valid_for_filtering(fBitmap->width() | fBitmap->height())); |
| 97 | |
reed@android.com | 7a99eb1 | 2009-07-16 01:13:14 +0000 | [diff] [blame] | 98 | fShaderProc32 = NULL; |
| 99 | fShaderProc16 = NULL; |
| 100 | fSampleProc32 = NULL; |
| 101 | fSampleProc16 = NULL; |
reed@android.com | 48534f9 | 2009-07-16 20:53:26 +0000 | [diff] [blame] | 102 | |
reed@android.com | 07d1f00 | 2009-08-13 19:35:48 +0000 | [diff] [blame] | 103 | fMatrixProc = this->chooseMatrixProc(trivial_matrix); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 104 | if (NULL == fMatrixProc) { |
| 105 | return false; |
| 106 | } |
| 107 | |
| 108 | /////////////////////////////////////////////////////////////////////// |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 109 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 110 | int index = 0; |
| 111 | if (fAlphaScale < 256) { // note: this distinction is not used for D16 |
| 112 | index |= 1; |
| 113 | } |
| 114 | if (fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask)) { |
| 115 | index |= 2; |
| 116 | } |
| 117 | if (fDoFilter) { |
| 118 | index |= 4; |
| 119 | } |
| 120 | // bits 3,4,5 encoding the source bitmap format |
| 121 | switch (fBitmap->config()) { |
| 122 | case SkBitmap::kARGB_8888_Config: |
| 123 | index |= 0; |
| 124 | break; |
| 125 | case SkBitmap::kRGB_565_Config: |
| 126 | index |= 8; |
| 127 | break; |
| 128 | case SkBitmap::kIndex8_Config: |
| 129 | index |= 16; |
| 130 | break; |
| 131 | case SkBitmap::kARGB_4444_Config: |
| 132 | index |= 24; |
| 133 | break; |
| 134 | case SkBitmap::kA8_Config: |
| 135 | index |= 32; |
| 136 | fPaintPMColor = SkPreMultiplyColor(paint.getColor()); |
reed@android.com | 3469c76 | 2009-02-24 19:03:20 +0000 | [diff] [blame] | 137 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 138 | default: |
| 139 | return false; |
| 140 | } |
| 141 | |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 142 | #if !SK_ARM_NEON_IS_ALWAYS |
| 143 | static const SampleProc32 gSkBitmapProcStateSample32[] = { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 144 | S32_opaque_D32_nofilter_DXDY, |
| 145 | S32_alpha_D32_nofilter_DXDY, |
| 146 | S32_opaque_D32_nofilter_DX, |
| 147 | S32_alpha_D32_nofilter_DX, |
| 148 | S32_opaque_D32_filter_DXDY, |
| 149 | S32_alpha_D32_filter_DXDY, |
| 150 | S32_opaque_D32_filter_DX, |
| 151 | S32_alpha_D32_filter_DX, |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 152 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 153 | S16_opaque_D32_nofilter_DXDY, |
| 154 | S16_alpha_D32_nofilter_DXDY, |
| 155 | S16_opaque_D32_nofilter_DX, |
| 156 | S16_alpha_D32_nofilter_DX, |
| 157 | S16_opaque_D32_filter_DXDY, |
| 158 | S16_alpha_D32_filter_DXDY, |
| 159 | S16_opaque_D32_filter_DX, |
| 160 | S16_alpha_D32_filter_DX, |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 161 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 162 | SI8_opaque_D32_nofilter_DXDY, |
| 163 | SI8_alpha_D32_nofilter_DXDY, |
| 164 | SI8_opaque_D32_nofilter_DX, |
| 165 | SI8_alpha_D32_nofilter_DX, |
| 166 | SI8_opaque_D32_filter_DXDY, |
| 167 | SI8_alpha_D32_filter_DXDY, |
| 168 | SI8_opaque_D32_filter_DX, |
| 169 | SI8_alpha_D32_filter_DX, |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 170 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 171 | S4444_opaque_D32_nofilter_DXDY, |
| 172 | S4444_alpha_D32_nofilter_DXDY, |
| 173 | S4444_opaque_D32_nofilter_DX, |
| 174 | S4444_alpha_D32_nofilter_DX, |
| 175 | S4444_opaque_D32_filter_DXDY, |
| 176 | S4444_alpha_D32_filter_DXDY, |
| 177 | S4444_opaque_D32_filter_DX, |
| 178 | S4444_alpha_D32_filter_DX, |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 179 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 180 | // A8 treats alpha/opauqe the same (equally efficient) |
| 181 | SA8_alpha_D32_nofilter_DXDY, |
| 182 | SA8_alpha_D32_nofilter_DXDY, |
| 183 | SA8_alpha_D32_nofilter_DX, |
| 184 | SA8_alpha_D32_nofilter_DX, |
| 185 | SA8_alpha_D32_filter_DXDY, |
| 186 | SA8_alpha_D32_filter_DXDY, |
| 187 | SA8_alpha_D32_filter_DX, |
| 188 | SA8_alpha_D32_filter_DX |
| 189 | }; |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 190 | |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 191 | static const SampleProc16 gSkBitmapProcStateSample16[] = { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 192 | S32_D16_nofilter_DXDY, |
| 193 | S32_D16_nofilter_DX, |
| 194 | S32_D16_filter_DXDY, |
| 195 | S32_D16_filter_DX, |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 196 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 197 | S16_D16_nofilter_DXDY, |
| 198 | S16_D16_nofilter_DX, |
| 199 | S16_D16_filter_DXDY, |
| 200 | S16_D16_filter_DX, |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 201 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 202 | SI8_D16_nofilter_DXDY, |
| 203 | SI8_D16_nofilter_DX, |
| 204 | SI8_D16_filter_DXDY, |
| 205 | SI8_D16_filter_DX, |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 206 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 207 | // Don't support 4444 -> 565 |
| 208 | NULL, NULL, NULL, NULL, |
| 209 | // Don't support A8 -> 565 |
| 210 | NULL, NULL, NULL, NULL |
| 211 | }; |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 212 | #endif |
reed@android.com | 48534f9 | 2009-07-16 20:53:26 +0000 | [diff] [blame] | 213 | |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 214 | fSampleProc32 = SK_ARM_NEON_WRAP(gSkBitmapProcStateSample32)[index]; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 215 | index >>= 1; // shift away any opaque/alpha distinction |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 216 | fSampleProc16 = SK_ARM_NEON_WRAP(gSkBitmapProcStateSample16)[index]; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 217 | |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 218 | // our special-case shaderprocs |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 219 | if (SK_ARM_NEON_WRAP(S16_D16_filter_DX) == fSampleProc16) { |
reed@android.com | aa9152a | 2009-07-17 21:24:56 +0000 | [diff] [blame] | 220 | if (clamp_clamp) { |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 221 | fShaderProc16 = SK_ARM_NEON_WRAP(Clamp_S16_D16_filter_DX_shaderproc); |
reed@android.com | aa9152a | 2009-07-17 21:24:56 +0000 | [diff] [blame] | 222 | } else if (SkShader::kRepeat_TileMode == fTileModeX && |
| 223 | SkShader::kRepeat_TileMode == fTileModeY) { |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 224 | fShaderProc16 = SK_ARM_NEON_WRAP(Repeat_S16_D16_filter_DX_shaderproc); |
reed@android.com | aa9152a | 2009-07-17 21:24:56 +0000 | [diff] [blame] | 225 | } |
digit@google.com | 3ada0ef | 2012-08-13 14:06:34 +0000 | [diff] [blame] | 226 | } else if (SK_ARM_NEON_WRAP(SI8_opaque_D32_filter_DX) == fSampleProc32 && clamp_clamp) { |
| 227 | fShaderProc32 = SK_ARM_NEON_WRAP(Clamp_SI8_opaque_D32_filter_DX_shaderproc); |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 228 | } |
reed@android.com | c9a1d4b | 2009-08-03 15:05:55 +0000 | [diff] [blame] | 229 | |
reed@google.com | 9a4c746 | 2012-10-12 18:21:37 +0000 | [diff] [blame] | 230 | if (NULL == fShaderProc32) { |
| 231 | fShaderProc32 = this->chooseShaderProc32(); |
| 232 | } |
| 233 | |
reed@android.com | c9a1d4b | 2009-08-03 15:05:55 +0000 | [diff] [blame] | 234 | // see if our platform has any accelerated overrides |
| 235 | this->platformProcs(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 236 | return true; |
| 237 | } |
| 238 | |
reed@google.com | 9a4c746 | 2012-10-12 18:21:37 +0000 | [diff] [blame] | 239 | static void Clamp_S32_D32_nofilter_trans_shaderproc(const SkBitmapProcState& s, |
| 240 | int x, int y, |
| 241 | SkPMColor* SK_RESTRICT colors, |
| 242 | int count) { |
| 243 | SkASSERT(((s.fInvType & ~SkMatrix::kTranslate_Mask)) == 0); |
| 244 | SkASSERT(s.fInvKy == 0); |
| 245 | SkASSERT(count > 0 && colors != NULL); |
| 246 | SkASSERT(!s.fDoFilter); |
| 247 | |
| 248 | const int maxX = s.fBitmap->width() - 1; |
reed@google.com | f7698de | 2012-10-12 20:50:24 +0000 | [diff] [blame^] | 249 | const int maxY = s.fBitmap->height() - 1; |
| 250 | int ix = s.fFilterOneX + x; |
| 251 | int iy = SkClampMax(s.fFilterOneY + y, maxY); |
| 252 | #ifdef SK_DEBUG |
reed@google.com | 9a4c746 | 2012-10-12 18:21:37 +0000 | [diff] [blame] | 253 | { |
| 254 | SkPoint pt; |
| 255 | s.fInvProc(*s.fInvMatrix, SkIntToScalar(x) + SK_ScalarHalf, |
| 256 | SkIntToScalar(y) + SK_ScalarHalf, &pt); |
reed@google.com | f7698de | 2012-10-12 20:50:24 +0000 | [diff] [blame^] | 257 | int iy2 = SkClampMax(SkScalarFloorToInt(pt.fY), maxY); |
| 258 | int ix2 = SkScalarFloorToInt(pt.fX); |
| 259 | |
| 260 | SkASSERT(iy == iy2); |
| 261 | SkASSERT(ix == ix2); |
reed@google.com | 9a4c746 | 2012-10-12 18:21:37 +0000 | [diff] [blame] | 262 | } |
reed@google.com | f7698de | 2012-10-12 20:50:24 +0000 | [diff] [blame^] | 263 | #endif |
| 264 | const SkPMColor* row = s.fBitmap->getAddr32(0, iy); |
reed@google.com | 9a4c746 | 2012-10-12 18:21:37 +0000 | [diff] [blame] | 265 | |
| 266 | // clamp to the left |
| 267 | if (ix < 0) { |
| 268 | int n = SkMin32(-ix, count); |
| 269 | sk_memset32(colors, row[0], n); |
| 270 | count -= n; |
| 271 | if (0 == count) { |
| 272 | return; |
| 273 | } |
| 274 | colors += n; |
| 275 | SkASSERT(-ix == n); |
| 276 | ix = 0; |
| 277 | } |
| 278 | // copy the middle |
| 279 | if (ix <= maxX) { |
| 280 | int n = SkMin32(maxX - ix + 1, count); |
| 281 | memcpy(colors, row + ix, n * sizeof(SkPMColor)); |
| 282 | count -= n; |
| 283 | if (0 == count) { |
| 284 | return; |
| 285 | } |
| 286 | colors += n; |
| 287 | } |
| 288 | SkASSERT(count > 0); |
| 289 | // clamp to the right |
| 290 | sk_memset32(colors, row[maxX], count); |
| 291 | } |
| 292 | |
| 293 | SkBitmapProcState::ShaderProc32 SkBitmapProcState::chooseShaderProc32() { |
| 294 | if (fAlphaScale < 256) { |
| 295 | return NULL; |
| 296 | } |
| 297 | if (fInvType > SkMatrix::kTranslate_Mask) { |
| 298 | return NULL; |
| 299 | } |
| 300 | if (fDoFilter) { |
| 301 | return NULL; |
| 302 | } |
| 303 | if (SkBitmap::kARGB_8888_Config != fBitmap->config()) { |
| 304 | return NULL; |
| 305 | } |
| 306 | |
| 307 | if (SkShader::kClamp_TileMode == fTileModeX && SkShader::kClamp_TileMode == fTileModeY) { |
reed@google.com | f7698de | 2012-10-12 20:50:24 +0000 | [diff] [blame^] | 308 | SkPoint pt; |
| 309 | fInvProc(*fInvMatrix, SK_ScalarHalf, SK_ScalarHalf, &pt); |
| 310 | // Since we know we're not filtered, we re-purpose these fields allow |
| 311 | // us to go from device -> src coordinates w/ just an integer add, |
| 312 | // rather than running through the inverse-matrix |
| 313 | fFilterOneX = SkScalarFloorToInt(pt.fX); |
| 314 | fFilterOneY = SkScalarFloorToInt(pt.fY); |
reed@google.com | 9a4c746 | 2012-10-12 18:21:37 +0000 | [diff] [blame] | 315 | return Clamp_S32_D32_nofilter_trans_shaderproc; |
| 316 | } |
| 317 | return NULL; |
| 318 | } |
| 319 | |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 320 | /////////////////////////////////////////////////////////////////////////////// |
reed@google.com | 9fe287b | 2012-03-27 15:54:28 +0000 | [diff] [blame] | 321 | |
| 322 | #ifdef SK_DEBUG |
| 323 | |
| 324 | static void check_scale_nofilter(uint32_t bitmapXY[], int count, |
| 325 | unsigned mx, unsigned my) { |
| 326 | unsigned y = *bitmapXY++; |
| 327 | SkASSERT(y < my); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 328 | |
reed@google.com | 9fe287b | 2012-03-27 15:54:28 +0000 | [diff] [blame] | 329 | const uint16_t* xptr = reinterpret_cast<const uint16_t*>(bitmapXY); |
| 330 | for (int i = 0; i < count; ++i) { |
| 331 | SkASSERT(xptr[i] < mx); |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | static void check_scale_filter(uint32_t bitmapXY[], int count, |
| 336 | unsigned mx, unsigned my) { |
| 337 | uint32_t YY = *bitmapXY++; |
| 338 | unsigned y0 = YY >> 18; |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 339 | unsigned y1 = YY & 0x3FFF; |
reed@google.com | 9fe287b | 2012-03-27 15:54:28 +0000 | [diff] [blame] | 340 | SkASSERT(y0 < my); |
| 341 | SkASSERT(y1 < my); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 342 | |
reed@google.com | 9fe287b | 2012-03-27 15:54:28 +0000 | [diff] [blame] | 343 | for (int i = 0; i < count; ++i) { |
| 344 | uint32_t XX = bitmapXY[i]; |
| 345 | unsigned x0 = XX >> 18; |
| 346 | unsigned x1 = XX & 0x3FFF; |
| 347 | SkASSERT(x0 < mx); |
| 348 | SkASSERT(x1 < mx); |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | static void check_affine_nofilter(uint32_t bitmapXY[], int count, |
| 353 | unsigned mx, unsigned my) { |
| 354 | for (int i = 0; i < count; ++i) { |
| 355 | uint32_t XY = bitmapXY[i]; |
| 356 | unsigned x = XY & 0xFFFF; |
| 357 | unsigned y = XY >> 16; |
| 358 | SkASSERT(x < mx); |
| 359 | SkASSERT(y < my); |
| 360 | } |
| 361 | } |
| 362 | |
| 363 | static void check_affine_filter(uint32_t bitmapXY[], int count, |
| 364 | unsigned mx, unsigned my) { |
| 365 | for (int i = 0; i < count; ++i) { |
| 366 | uint32_t YY = *bitmapXY++; |
| 367 | unsigned y0 = YY >> 18; |
| 368 | unsigned y1 = YY & 0x3FFF; |
| 369 | SkASSERT(y0 < my); |
| 370 | SkASSERT(y1 < my); |
| 371 | |
| 372 | uint32_t XX = *bitmapXY++; |
| 373 | unsigned x0 = XX >> 18; |
| 374 | unsigned x1 = XX & 0x3FFF; |
| 375 | SkASSERT(x0 < mx); |
| 376 | SkASSERT(x1 < mx); |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | void SkBitmapProcState::DebugMatrixProc(const SkBitmapProcState& state, |
| 381 | uint32_t bitmapXY[], int count, |
| 382 | int x, int y) { |
| 383 | SkASSERT(bitmapXY); |
| 384 | SkASSERT(count > 0); |
| 385 | |
| 386 | state.fMatrixProc(state, bitmapXY, count, x, y); |
| 387 | |
| 388 | void (*proc)(uint32_t bitmapXY[], int count, unsigned mx, unsigned my); |
| 389 | |
| 390 | // There are four formats possible: |
| 391 | // scale -vs- affine |
| 392 | // filter -vs- nofilter |
| 393 | if (state.fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask)) { |
| 394 | proc = state.fDoFilter ? check_scale_filter : check_scale_nofilter; |
| 395 | } else { |
| 396 | proc = state.fDoFilter ? check_affine_filter : check_affine_nofilter; |
| 397 | } |
| 398 | proc(bitmapXY, count, state.fBitmap->width(), state.fBitmap->height()); |
| 399 | } |
| 400 | |
| 401 | SkBitmapProcState::MatrixProc SkBitmapProcState::getMatrixProc() const { |
| 402 | return DebugMatrixProc; |
| 403 | } |
| 404 | |
| 405 | #endif |
| 406 | |
| 407 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 408 | /* |
| 409 | The storage requirements for the different matrix procs are as follows, |
| 410 | where each X or Y is 2 bytes, and N is the number of pixels/elements: |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 411 | |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 412 | scale/translate nofilter Y(4bytes) + N * X |
| 413 | affine/perspective nofilter N * (X Y) |
| 414 | scale/translate filter Y Y + N * (X X) |
| 415 | affine/perspective filter N * (Y Y X X) |
| 416 | */ |
| 417 | int SkBitmapProcState::maxCountForBufferSize(size_t bufferSize) const { |
| 418 | int32_t size = static_cast<int32_t>(bufferSize); |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 419 | |
| 420 | size &= ~3; // only care about 4-byte aligned chunks |
| 421 | if (fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask)) { |
| 422 | size -= 4; // the shared Y (or YY) coordinate |
| 423 | if (size < 0) { |
| 424 | size = 0; |
| 425 | } |
reed@android.com | 258cb22 | 2010-04-14 13:36:33 +0000 | [diff] [blame] | 426 | size >>= 1; |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 427 | } else { |
reed@android.com | 258cb22 | 2010-04-14 13:36:33 +0000 | [diff] [blame] | 428 | size >>= 2; |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 429 | } |
| 430 | |
reed@android.com | 258cb22 | 2010-04-14 13:36:33 +0000 | [diff] [blame] | 431 | if (fDoFilter) { |
| 432 | size >>= 1; |
| 433 | } |
| 434 | |
| 435 | return size; |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 436 | } |
| 437 | |