gfx/skia/trunk/src/utils/SkMeshUtils.cpp@129ffea94266 (annotated)
gfx/skia/trunk/src/utils/SkMeshUtils.cpp
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | |
| michael@0 | 2 | /* |
| michael@0 | 3 | * Copyright 2011 Google Inc. |
| michael@0 | 4 | * |
| michael@0 | 5 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 6 | * found in the LICENSE file. |
| michael@0 | 7 | */ |
| michael@0 | 8 | #include "SkMeshUtils.h" |
| michael@0 | 9 | #include "SkCanvas.h" |
| michael@0 | 10 | #include "SkPaint.h" |
| michael@0 | 11 | |
| michael@0 | 12 | SkMeshIndices::SkMeshIndices() { |
| michael@0 | 13 | sk_bzero(this, sizeof(*this)); |
| michael@0 | 14 | } |
| michael@0 | 15 | |
| michael@0 | 16 | SkMeshIndices::~SkMeshIndices() { |
| michael@0 | 17 | sk_free(fStorage); |
| michael@0 | 18 | } |
| michael@0 | 19 | |
| michael@0 | 20 | bool SkMeshIndices::init(SkPoint tex[], uint16_t indices[], |
| michael@0 | 21 | int texW, int texH, int rows, int cols) { |
| michael@0 | 22 | if (rows < 2 || cols < 2) { |
| michael@0 | 23 | sk_free(fStorage); |
| michael@0 | 24 | fStorage = NULL; |
| michael@0 | 25 | fTex = NULL; |
| michael@0 | 26 | fIndices = NULL; |
| michael@0 | 27 | fTexCount = fIndexCount = 0; |
| michael@0 | 28 | return false; |
| michael@0 | 29 | } |
| michael@0 | 30 | |
| michael@0 | 31 | sk_free(fStorage); |
| michael@0 | 32 | fStorage = NULL; |
| michael@0 | 33 | |
| michael@0 | 34 | fTexCount = rows * cols; |
| michael@0 | 35 | rows -= 1; |
| michael@0 | 36 | cols -= 1; |
| michael@0 | 37 | fIndexCount = rows * cols * 6; |
| michael@0 | 38 | |
| michael@0 | 39 | if (tex) { |
| michael@0 | 40 | fTex = tex; |
| michael@0 | 41 | fIndices = indices; |
| michael@0 | 42 | } else { |
| michael@0 | 43 | fStorage = sk_malloc_throw(fTexCount * sizeof(SkPoint) + |
| michael@0 | 44 | fIndexCount * sizeof(uint16_t)); |
| michael@0 | 45 | fTex = (SkPoint*)fStorage; |
| michael@0 | 46 | fIndices = (uint16_t*)(fTex + fTexCount); |
| michael@0 | 47 | } |
| michael@0 | 48 | |
| michael@0 | 49 | // compute the indices |
| michael@0 | 50 | { |
| michael@0 | 51 | uint16_t* idx = fIndices; |
| michael@0 | 52 | int index = 0; |
| michael@0 | 53 | for (int y = 0; y < cols; y++) { |
| michael@0 | 54 | for (int x = 0; x < rows; x++) { |
| michael@0 | 55 | *idx++ = index; |
| michael@0 | 56 | *idx++ = index + rows + 1; |
| michael@0 | 57 | *idx++ = index + 1; |
| michael@0 | 58 | |
| michael@0 | 59 | *idx++ = index + 1; |
| michael@0 | 60 | *idx++ = index + rows + 1; |
| michael@0 | 61 | *idx++ = index + rows + 2; |
| michael@0 | 62 | |
| michael@0 | 63 | index += 1; |
| michael@0 | 64 | } |
| michael@0 | 65 | index += 1; |
| michael@0 | 66 | } |
| michael@0 | 67 | } |
| michael@0 | 68 | |
| michael@0 | 69 | // compute texture coordinates |
| michael@0 | 70 | { |
| michael@0 | 71 | SkPoint* tex = fTex; |
| michael@0 | 72 | const SkScalar dx = SkIntToScalar(texW) / rows; |
| michael@0 | 73 | const SkScalar dy = SkIntToScalar(texH) / cols; |
| michael@0 | 74 | for (int y = 0; y <= cols; y++) { |
| michael@0 | 75 | for (int x = 0; x <= rows; x++) { |
| michael@0 | 76 | tex->set(x*dx, y*dy); |
| michael@0 | 77 | tex += 1; |
| michael@0 | 78 | } |
| michael@0 | 79 | } |
| michael@0 | 80 | } |
| michael@0 | 81 | return true; |
| michael@0 | 82 | } |
| michael@0 | 83 | |
| michael@0 | 84 | /////////////////////////////////////////////////////////////////////////////// |
| michael@0 | 85 | |
| michael@0 | 86 | #include "SkShader.h" |
| michael@0 | 87 | |
| michael@0 | 88 | void SkMeshUtils::Draw(SkCanvas* canvas, const SkBitmap& bitmap, |
| michael@0 | 89 | int rows, int cols, const SkPoint verts[], |
| michael@0 | 90 | const SkColor colors[], const SkPaint& paint) { |
| michael@0 | 91 | SkMeshIndices idx; |
| michael@0 | 92 | |
| michael@0 | 93 | if (idx.init(bitmap.width(), bitmap.height(), rows, cols)) { |
| michael@0 | 94 | SkPaint p(paint); |
| michael@0 | 95 | p.setShader(SkShader::CreateBitmapShader(bitmap, |
| michael@0 | 96 | SkShader::kClamp_TileMode, |
| michael@0 | 97 | SkShader::kClamp_TileMode))->unref(); |
| michael@0 | 98 | canvas->drawVertices(SkCanvas::kTriangles_VertexMode, |
| michael@0 | 99 | rows * cols, verts, idx.tex(), colors, NULL, |
| michael@0 | 100 | idx.indices(), idx.indexCount(), p); |
| michael@0 | 101 | } |
| michael@0 | 102 | } |
