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Diffstat (limited to 'Source/WebCore/platform/graphics/android/ImageTexture.cpp')
-rw-r--r-- | Source/WebCore/platform/graphics/android/ImageTexture.cpp | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/android/ImageTexture.cpp b/Source/WebCore/platform/graphics/android/ImageTexture.cpp new file mode 100644 index 0000000..7e71740 --- /dev/null +++ b/Source/WebCore/platform/graphics/android/ImageTexture.cpp @@ -0,0 +1,128 @@ +/* + * Copyright 2011, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "ImageTexture.h" + +#include "SkDevice.h" +#include "TilesManager.h" + +#ifdef DEBUG + +#include <cutils/log.h> +#include <wtf/CurrentTime.h> +#include <wtf/text/CString.h> + +#undef XLOG +#define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "ImageTexture", __VA_ARGS__) + +#else + +#undef XLOG +#define XLOG(...) + +#endif // DEBUG + +namespace WebCore { + +ImageTexture::ImageTexture(SkBitmapRef* img) + : m_imageRef(img) + , m_image(0) + , m_textureId(0) + , m_refCount(0) +{ +#ifdef DEBUG_COUNT + ClassTracker::instance()->increment("ImageTexture"); +#endif + if (!m_imageRef) + return; + + SkBitmap* bitmap = &m_imageRef->bitmap(); + m_image = new SkBitmap(); + int w = bitmap->width(); + int h = bitmap->height(); + m_image->setConfig(SkBitmap::kARGB_8888_Config, w, h); + m_image->allocPixels(); + SkDevice* device = new SkDevice(NULL, *m_image, false); + SkCanvas canvas; + canvas.setDevice(device); + device->unref(); + SkRect dest; + dest.set(0, 0, w, h); + m_image->setIsOpaque(false); + m_image->eraseARGB(0, 0, 0, 0); + canvas.drawBitmapRect(*bitmap, 0, dest); +} + +ImageTexture::~ImageTexture() +{ +#ifdef DEBUG_COUNT + ClassTracker::instance()->decrement("ImageTexture"); +#endif + delete m_image; +} + +void ImageTexture::prepare() +{ + if (m_textureId) + return; + + glGenTextures(1, &m_textureId); + GLUtils::createTextureWithBitmap(m_textureId, *m_image); +} + +void ImageTexture::draw(LayerAndroid* layer) +{ + if (!layer) + return; + if (!m_textureId) + return; + if (!m_image) + return; + + SkRect rect; + rect.fLeft = 0; + rect.fTop = 0; + rect.fRight = layer->getSize().width(); + rect.fBottom = layer->getSize().height(); + TilesManager::instance()->shader()->drawLayerQuad(*layer->drawTransform(), + rect, m_textureId, + layer->drawOpacity(), true); +} + +void ImageTexture::release() +{ + if (m_refCount >= 1) + m_refCount--; + if (!m_refCount) + deleteTexture(); +} + +void ImageTexture::deleteTexture() +{ + glDeleteTextures(1, &m_textureId); +} + +} // namespace WebCore |