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Diffstat (limited to 'src/utils/SkMeshUtils.cpp')
-rw-r--r-- | src/utils/SkMeshUtils.cpp | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/src/utils/SkMeshUtils.cpp b/src/utils/SkMeshUtils.cpp deleted file mode 100644 index 4c9c0d04c7..0000000000 --- a/src/utils/SkMeshUtils.cpp +++ /dev/null @@ -1,101 +0,0 @@ -/* - * Copyright 2011 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ -#include "SkMeshUtils.h" -#include "SkCanvas.h" -#include "SkPaint.h" - -SkMeshIndices::SkMeshIndices() { - sk_bzero(this, sizeof(*this)); -} - -SkMeshIndices::~SkMeshIndices() { - sk_free(fStorage); -} - -bool SkMeshIndices::init(SkPoint tex[], uint16_t indices[], - int texW, int texH, int rows, int cols) { - if (rows < 2 || cols < 2) { - sk_free(fStorage); - fStorage = nullptr; - fTex = nullptr; - fIndices = nullptr; - fTexCount = fIndexCount = 0; - return false; - } - - sk_free(fStorage); - fStorage = nullptr; - - fTexCount = rows * cols; - rows -= 1; - cols -= 1; - fIndexCount = rows * cols * 6; - - if (tex) { - fTex = tex; - fIndices = indices; - } else { - fStorage = sk_malloc_throw(fTexCount * sizeof(SkPoint) + - fIndexCount * sizeof(uint16_t)); - fTex = (SkPoint*)fStorage; - fIndices = (uint16_t*)(fTex + fTexCount); - } - - // compute the indices - { - uint16_t* idx = fIndices; - int index = 0; - for (int y = 0; y < cols; y++) { - for (int x = 0; x < rows; x++) { - *idx++ = index; - *idx++ = index + rows + 1; - *idx++ = index + 1; - - *idx++ = index + 1; - *idx++ = index + rows + 1; - *idx++ = index + rows + 2; - - index += 1; - } - index += 1; - } - } - - // compute texture coordinates - { - SkPoint* tex = fTex; - const SkScalar dx = SkIntToScalar(texW) / rows; - const SkScalar dy = SkIntToScalar(texH) / cols; - for (int y = 0; y <= cols; y++) { - for (int x = 0; x <= rows; x++) { - tex->set(x*dx, y*dy); - tex += 1; - } - } - } - return true; -} - -/////////////////////////////////////////////////////////////////////////////// - -#include "SkShader.h" - -void SkMeshUtils::Draw(SkCanvas* canvas, const SkBitmap& bitmap, - int rows, int cols, const SkPoint verts[], - const SkColor colors[], const SkPaint& paint) { - SkMeshIndices idx; - - if (idx.init(bitmap.width(), bitmap.height(), rows, cols)) { - SkPaint p(paint); - p.setShader(SkShader::MakeBitmapShader(bitmap, - SkShader::kClamp_TileMode, - SkShader::kClamp_TileMode)); - canvas->drawVertices(SkCanvas::kTriangles_VertexMode, - rows * cols, verts, idx.tex(), colors, SkBlendMode::kModulate, - idx.indices(), idx.indexCount(), p); - } -} |