mirror of https://github.com/axmolengine/axmol.git
905 lines
30 KiB
C++
905 lines
30 KiB
C++
/****************************************************************************
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Copyright (c) 2008 Apple Inc. All Rights Reserved.
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2013-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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/*
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* Support for RGBA_4_4_4_4 and RGBA_5_5_5_1 was copied from:
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* https://devforums.apple.com/message/37855#37855 by a1studmuffin
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*/
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#include "renderer/CCTexture2D.h"
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#include "platform/CCImage.h"
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#include "base/ccUtils.h"
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#include "platform/CCDevice.h"
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#include "base/ccConfig.h"
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#include "base/ccMacros.h"
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#include "base/ccUTF8.h"
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#include "base/CCConfiguration.h"
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#include "platform/CCPlatformMacros.h"
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#include "base/CCDirector.h"
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#include "base/CCNinePatchImageParser.h"
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#include "renderer/backend/Device.h"
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#include "renderer/backend/ProgramState.h"
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#include "renderer/ccShaders.h"
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#include "renderer/CCTextureUtils.h"
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#include "renderer/CCRenderer.h"
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#if CC_ENABLE_CACHE_TEXTURE_DATA
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#include "renderer/CCTextureCache.h"
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#endif
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NS_CC_BEGIN
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namespace {
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typedef Texture2D::PixelFormatInfoMap::value_type PixelFormatInfoMapValue;
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static const PixelFormatInfoMapValue TexturePixelFormatInfoTablesValue[] =
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{
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PixelFormatInfoMapValue(backend::PixelFormat::BGRA8888, Texture2D::PixelFormatInfo(32, false, true)),
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PixelFormatInfoMapValue(backend::PixelFormat::RGBA8888, Texture2D::PixelFormatInfo(32, false, true)),
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PixelFormatInfoMapValue(backend::PixelFormat::RGBA4444, Texture2D::PixelFormatInfo(16, false, true)),
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PixelFormatInfoMapValue(backend::PixelFormat::RGB5A1, Texture2D::PixelFormatInfo(16, false, true)),
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PixelFormatInfoMapValue(backend::PixelFormat::RGB565, Texture2D::PixelFormatInfo(16, false, false)),
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PixelFormatInfoMapValue(backend::PixelFormat::RGB888, Texture2D::PixelFormatInfo(24, false, false)),
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PixelFormatInfoMapValue(backend::PixelFormat::A8, Texture2D::PixelFormatInfo(8, false, false)),
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PixelFormatInfoMapValue(backend::PixelFormat::I8, Texture2D::PixelFormatInfo(8, false, false)),
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PixelFormatInfoMapValue(backend::PixelFormat::AI88, Texture2D::PixelFormatInfo(16, false, true)),
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#if defined( GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
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PixelFormatInfoMapValue(backend::PixelFormat::PVRTC2, Texture2D::PixelFormatInfo(2, true, false)),
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PixelFormatInfoMapValue(backend::PixelFormat::PVRTC2A, Texture2D::PixelFormatInfo(2, true, true)),
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PixelFormatInfoMapValue(backend::PixelFormat::PVRTC4, Texture2D::PixelFormatInfo(4, true, false)),
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PixelFormatInfoMapValue(backend::PixelFormat::PVRTC4A, Texture2D::PixelFormatInfo(4, true, true)),
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#endif
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#if defined(GL_ETC1_RGB8_OES) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
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PixelFormatInfoMapValue(backend::PixelFormat::ETC, Texture2D::PixelFormatInfo(4, true, false)),
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#endif
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#if defined(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) || (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)
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PixelFormatInfoMapValue(backend::PixelFormat::S3TC_DXT1, Texture2D::PixelFormatInfo(4, true, false)),
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#endif
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#if defined(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT) || (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)
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PixelFormatInfoMapValue(backend::PixelFormat::S3TC_DXT3, Texture2D::PixelFormatInfo(8, true, false)),
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#endif
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#if defined(GL_COMPRESSED_RGBA_S3TC_DXT5_EXT) || (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)
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PixelFormatInfoMapValue(backend::PixelFormat::S3TC_DXT5, Texture2D::PixelFormatInfo(8, true, false)),
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#endif
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#ifdef GL_ATC_RGB_AMD
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PixelFormatInfoMapValue(backend::PixelFormat::ATC_RGB, Texture2D::PixelFormatInfo(4, true, false)),
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#endif
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#ifdef GL_ATC_RGBA_EXPLICIT_ALPHA_AMD
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PixelFormatInfoMapValue(backend::PixelFormat::ATC_EXPLICIT_ALPHA, Texture2D::PixelFormatInfo(8, true, false)),
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#endif
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#ifdef GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD
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PixelFormatInfoMapValue(backend::PixelFormat::ATC_INTERPOLATED_ALPHA, Texture2D::PixelFormatInfo(8, true, false)),
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#endif
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//metal formats
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#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
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PixelFormatInfoMapValue(backend::PixelFormat::MTL_ABGR4, Texture2D::PixelFormatInfo(16, false, true)),
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PixelFormatInfoMapValue(backend::PixelFormat::MTL_B5G6R5, Texture2D::PixelFormatInfo(16, false, false)),
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PixelFormatInfoMapValue(backend::PixelFormat::MTL_BGR5A1, Texture2D::PixelFormatInfo(16, false, true)),
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#endif
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};
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}
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//CLASS IMPLEMENTATIONS:
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//The PixpelFormat corresponding information
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const Texture2D::PixelFormatInfoMap Texture2D::_pixelFormatInfoTables(TexturePixelFormatInfoTablesValue,
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TexturePixelFormatInfoTablesValue + sizeof(TexturePixelFormatInfoTablesValue) / sizeof(TexturePixelFormatInfoTablesValue[0]));
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// If the image has alpha, you can create RGBA8 (32-bit) or RGBA4 (16-bit) or RGB5A1 (16-bit)
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// Default is: RGBA8888 (32-bit textures)
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static backend::PixelFormat g_defaultAlphaPixelFormat = backend::PixelFormat::DEFAULT;
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Texture2D::Texture2D()
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: _pixelFormat(backend::PixelFormat::DEFAULT)
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, _pixelsWide(0)
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, _pixelsHigh(0)
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, _maxS(0.0)
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, _maxT(0.0)
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, _hasPremultipliedAlpha(false)
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, _hasMipmaps(false)
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, _antialiasEnabled(true)
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, _ninePatchInfo(nullptr)
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, _valid(true)
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, _alphaTexture(nullptr)
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{
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backend::TextureDescriptor textureDescriptor;
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textureDescriptor.textureFormat = PixelFormat::NONE;
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_texture = static_cast<backend::Texture2D*>(backend::Device::getInstance()->newTexture(textureDescriptor));
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}
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Texture2D::~Texture2D()
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{
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#if CC_ENABLE_CACHE_TEXTURE_DATA
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VolatileTextureMgr::removeTexture(this);
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#endif
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CC_SAFE_RELEASE_NULL(_alphaTexture); // ETC1 ALPHA support.
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CCLOGINFO("deallocing Texture2D: %p - id=%u", this, _name);
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CC_SAFE_DELETE(_ninePatchInfo);
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CC_SAFE_RELEASE(_texture);
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CC_SAFE_RELEASE(_programState);
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}
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backend::PixelFormat Texture2D::getPixelFormat() const
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{
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return _pixelFormat;
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}
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int Texture2D::getPixelsWide() const
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{
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return _pixelsWide;
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}
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int Texture2D::getPixelsHigh() const
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{
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return _pixelsHigh;
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}
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backend::Texture* Texture2D::getBackendTexture() const
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{
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return _texture;
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}
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bool Texture2D::getAlphaTextureName() const
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{
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return _alphaTexture == nullptr ? 0 : _alphaTexture->getBackendTexture();
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}
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Size Texture2D::getContentSize() const
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{
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Size ret;
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ret.width = _contentSize.width / CC_CONTENT_SCALE_FACTOR();
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ret.height = _contentSize.height / CC_CONTENT_SCALE_FACTOR();
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return ret;
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}
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const Size& Texture2D::getContentSizeInPixels()
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{
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return _contentSize;
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}
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GLfloat Texture2D::getMaxS() const
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{
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return _maxS;
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}
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void Texture2D::setMaxS(GLfloat maxS)
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{
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_maxS = maxS;
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}
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GLfloat Texture2D::getMaxT() const
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{
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return _maxT;
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}
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void Texture2D::setMaxT(GLfloat maxT)
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{
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_maxT = maxT;
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}
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bool Texture2D::hasPremultipliedAlpha() const
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{
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return _hasPremultipliedAlpha;
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}
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bool Texture2D::initWithData(const void *data, ssize_t dataLen, backend::PixelFormat pixelFormat, backend::PixelFormat renderFormat, int pixelsWide, int pixelsHigh, const Size& /*contentSize*/)
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{
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CCASSERT(dataLen>0 && pixelsWide>0 && pixelsHigh>0, "Invalid size");
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//if data has no mipmaps, we will consider it has only one mipmap
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MipmapInfo mipmap;
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mipmap.address = (unsigned char*)data;
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mipmap.len = static_cast<int>(dataLen);
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return initWithMipmaps(&mipmap, 1, pixelFormat, renderFormat, pixelsWide, pixelsHigh);
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}
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bool Texture2D::initWithMipmaps(MipmapInfo* mipmaps, int mipmapsNum, backend::PixelFormat pixelFormat, backend::PixelFormat renderFormat, int pixelsWide, int pixelsHigh)
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{
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//the pixelFormat must be a certain value
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CCASSERT(pixelFormat != PixelFormat::NONE && pixelFormat != PixelFormat::AUTO, "the \"pixelFormat\" param must be a certain value!");
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CCASSERT(pixelsWide > 0 && pixelsHigh > 0, "Invalid size");
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if (mipmapsNum <= 0)
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{
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CCLOG("cocos2d: WARNING: mipmap number is less than 1");
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return false;
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}
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auto formatItr = _pixelFormatInfoTables.find(pixelFormat);
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if (formatItr == _pixelFormatInfoTables.end())
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{
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CCLOG("cocos2d: WARNING: unsupported pixelformat: %lx", (unsigned long)pixelFormat);
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#ifdef CC_USE_METAL
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CCASSERT(false, "pixeformat not found in _pixelFormatInfoTables, register required!");
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#endif
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return false;
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}
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const PixelFormatInfo& info = formatItr->second;
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if (info.compressed && !Configuration::getInstance()->supportsPVRTC()
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&& !Configuration::getInstance()->supportsETC()
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&& !Configuration::getInstance()->supportsS3TC()
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&& !Configuration::getInstance()->supportsATITC())
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{
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CCLOG("cocos2d: WARNING: PVRTC/ETC images are not supported");
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return false;
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}
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#if CC_ENABLE_CACHE_TEXTURE_DATA
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VolatileTextureMgr::findVolotileTexture(this);
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#endif
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backend::TextureDescriptor textureDescriptor;
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textureDescriptor.width = pixelsWide;
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textureDescriptor.height = pixelsHigh;
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textureDescriptor.samplerDescriptor.magFilter = (_antialiasEnabled) ? backend::SamplerFilter::LINEAR : backend::SamplerFilter::NEAREST;
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if (mipmapsNum == 1)
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{
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textureDescriptor.samplerDescriptor.minFilter = (_antialiasEnabled) ? backend::SamplerFilter::LINEAR : backend::SamplerFilter::NEAREST;
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}
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else
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{
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textureDescriptor.samplerDescriptor.minFilter = (_antialiasEnabled) ? backend::SamplerFilter::LINEAR_MIPMAP_NEAREST : backend::SamplerFilter::NEAREST_MIPMAP_NEAREST;
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}
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int width = pixelsWide;
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int height = pixelsHigh;
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backend::PixelFormat oriPixelFormat = pixelFormat;
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for (int i = 0; i < mipmapsNum; ++i)
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{
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unsigned char *data = mipmaps[i].address;
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size_t dataLen = mipmaps[i].len;
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unsigned char *outData = data;
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size_t outDataLen = dataLen;
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if(renderFormat != oriPixelFormat && !info.compressed) //need conversion
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{
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auto convertedFormat = backend::PixelFormatUtils::convertDataToFormat(data, dataLen, oriPixelFormat, renderFormat, &outData, &outDataLen);
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#ifdef CC_USE_METAL
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CCASSERT(convertedFormat == renderFormat, "PixelFormat convert failed!");
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#endif
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if(convertedFormat == renderFormat) pixelFormat = renderFormat;
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}
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textureDescriptor.textureFormat = pixelFormat;
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CCASSERT(textureDescriptor.textureFormat != backend::PixelFormat::NONE, "PixelFormat should not be NONE");
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if(_texture->getTextureFormat() != textureDescriptor.textureFormat)
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_texture->updateTextureDescriptor(textureDescriptor);
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if(info.compressed)
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{
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_texture->updateCompressedData(data, width, height, dataLen, i);
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}
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else
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{
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_texture->updateData(outData, width, height, i);
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}
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if(outData && outData != data && outDataLen > 0)
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{
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free(outData);
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outData = nullptr;
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outDataLen = 0;
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}
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if (i > 0 && (width != height || ccNextPOT(width) != width ))
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{
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CCLOG("cocos2d: Texture2D. WARNING. Mipmap level %u is not squared. Texture won't render correctly. width=%d != height=%d", i, width, height);
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}
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width = MAX(width >> 1, 1);
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height = MAX(height >> 1, 1);
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}
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_contentSize = Size((float)pixelsWide, (float)pixelsHigh);
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_pixelsWide = pixelsWide;
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_pixelsHigh = pixelsHigh;
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_pixelFormat = pixelFormat;
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_maxS = 1;
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_maxT = 1;
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_hasPremultipliedAlpha = false;
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_hasMipmaps = mipmapsNum > 1;
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return true;
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}
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bool Texture2D::updateWithData(void *data,int offsetX,int offsetY,int width,int height)
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{
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if (_texture && width > 0 && height > 0)
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{
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uint8_t* textureData = static_cast<uint8_t*>(data);
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_texture->updateSubData(offsetX, offsetY, width, height, 0, textureData);
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return true;
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}
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return false;
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}
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// implementation Texture2D (Image)
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bool Texture2D::initWithImage(Image *image)
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{
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return initWithImage(image, g_defaultAlphaPixelFormat);
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}
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bool Texture2D::initWithImage(Image *image, backend::PixelFormat format)
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{
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if (image == nullptr)
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{
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CCLOG("cocos2d: Texture2D. Can't create Texture. UIImage is nil");
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return false;
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}
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int imageWidth = image->getWidth();
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int imageHeight = image->getHeight();
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this->_filePath = image->getFilePath();
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Configuration *conf = Configuration::getInstance();
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int maxTextureSize = conf->getMaxTextureSize();
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if (imageWidth > maxTextureSize || imageHeight > maxTextureSize)
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{
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CCLOG("cocos2d: WARNING: Image (%u x %u) is bigger than the supported %u x %u", imageWidth, imageHeight, maxTextureSize, maxTextureSize);
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return false;
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}
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unsigned char* tempData = image->getData();
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Size imageSize = Size((float)imageWidth, (float)imageHeight);
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backend::PixelFormat renderFormat = ((PixelFormat::NONE == format) || (PixelFormat::AUTO == format)) ? image->getPixelFormat() : format;
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backend::PixelFormat imagePixelFormat = image->getPixelFormat();
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size_t tempDataLen = image->getDataLen();
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#ifdef CC_USE_METAL
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//compressed format does not need conversion
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switch (imagePixelFormat) {
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case PixelFormat::PVRTC4A:
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case PixelFormat::PVRTC4:
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case PixelFormat::PVRTC2A:
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case PixelFormat::PVRTC2:
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case PixelFormat::A8:
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renderFormat = imagePixelFormat;
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default:
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break;
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}
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//override renderFormat, since some render format is not supported by metal
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switch (renderFormat)
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{
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#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
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//packed 16 bits pixels only available on iOS
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case PixelFormat::RGB565:
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renderFormat = PixelFormat::MTL_B5G6R5;
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break;
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case PixelFormat::RGBA4444:
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renderFormat = PixelFormat::MTL_ABGR4;
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break;
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case PixelFormat::RGB5A1:
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renderFormat = PixelFormat::MTL_BGR5A1;
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break;
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#else
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case PixelFormat::RGB565:
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case PixelFormat::RGB5A1:
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case PixelFormat::RGBA4444:
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#endif
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case PixelFormat::I8:
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case PixelFormat::AI88:
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//TODO: conversion RGBA8888 -> I8(AI88) -> RGBA8888 may happends
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renderFormat = PixelFormat::RGBA8888;
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break;
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default:
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break;
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}
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#endif
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if (image->getNumberOfMipmaps() > 1)
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{
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if (renderFormat != image->getPixelFormat())
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{
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CCLOG("cocos2d: WARNING: This image has more than 1 mipmaps and we will not convert the data format");
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}
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//pixel format of data is not converted, renderFormat can be different from pixelFormat
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//it will be done later
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initWithMipmaps(image->getMipmaps(), image->getNumberOfMipmaps(), image->getPixelFormat(), renderFormat, imageWidth, imageHeight);
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// set the premultiplied tag
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_hasPremultipliedAlpha = image->hasPremultipliedAlpha();
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return true;
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}
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else if (image->isCompressed())
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{
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if (renderFormat != image->getPixelFormat())
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{
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CCLOG("cocos2d: WARNING: This image is compressed and we can't convert it for now");
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}
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initWithData(tempData, tempDataLen, image->getPixelFormat(), imageWidth, imageHeight, imageSize);
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// set the premultiplied tag
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_hasPremultipliedAlpha = image->hasPremultipliedAlpha();
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return true;
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}
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else
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{
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//after conversion, renderFormat == pixelFormat of data
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initWithData(tempData, tempDataLen, imagePixelFormat, renderFormat, imageWidth, imageHeight, imageSize);
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// set the premultiplied tag
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_hasPremultipliedAlpha = image->hasPremultipliedAlpha();
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return true;
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}
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}
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// implementation Texture2D (Text)
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bool Texture2D::initWithString(const char *text, const std::string& fontName, float fontSize, const Size& dimensions/* = Size(0, 0)*/, TextHAlignment hAlignment/* = TextHAlignment::CENTER */, TextVAlignment vAlignment/* = TextVAlignment::TOP */, bool enableWrap /* = false */, int overflow /* = 0 */)
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{
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FontDefinition tempDef;
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tempDef._shadow._shadowEnabled = false;
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tempDef._stroke._strokeEnabled = false;
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tempDef._fontName = fontName;
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tempDef._fontSize = fontSize;
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tempDef._dimensions = dimensions;
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tempDef._alignment = hAlignment;
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tempDef._vertAlignment = vAlignment;
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tempDef._fontFillColor = Color3B::WHITE;
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tempDef._enableWrap = enableWrap;
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tempDef._overflow = overflow;
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return initWithString(text, tempDef);
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}
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bool Texture2D::initWithString(const char *text, const FontDefinition& textDefinition)
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{
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if(!text || 0 == strlen(text))
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{
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return false;
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}
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#if CC_ENABLE_CACHE_TEXTURE_DATA
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// cache the texture data
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VolatileTextureMgr::addStringTexture(this, text, textDefinition);
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#endif
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bool ret = false;
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Device::TextAlign align;
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if (TextVAlignment::TOP == textDefinition._vertAlignment)
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{
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align = (TextHAlignment::CENTER == textDefinition._alignment) ? Device::TextAlign::TOP
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: (TextHAlignment::LEFT == textDefinition._alignment) ? Device::TextAlign::TOP_LEFT : Device::TextAlign::TOP_RIGHT;
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}
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else if (TextVAlignment::CENTER == textDefinition._vertAlignment)
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{
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align = (TextHAlignment::CENTER == textDefinition._alignment) ? Device::TextAlign::CENTER
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: (TextHAlignment::LEFT == textDefinition._alignment) ? Device::TextAlign::LEFT : Device::TextAlign::RIGHT;
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}
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else if (TextVAlignment::BOTTOM == textDefinition._vertAlignment)
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{
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align = (TextHAlignment::CENTER == textDefinition._alignment) ? Device::TextAlign::BOTTOM
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: (TextHAlignment::LEFT == textDefinition._alignment) ? Device::TextAlign::BOTTOM_LEFT : Device::TextAlign::BOTTOM_RIGHT;
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}
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else
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{
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CCASSERT(false, "Not supported alignment format!");
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return false;
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}
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#if (CC_TARGET_PLATFORM != CC_PLATFORM_ANDROID) && (CC_TARGET_PLATFORM != CC_PLATFORM_IOS)
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CCASSERT(textDefinition._stroke._strokeEnabled == false, "Currently stroke only supported on iOS and Android!");
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#endif
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PixelFormat pixelFormat = g_defaultAlphaPixelFormat;
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unsigned char* outTempData = nullptr;
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size_t outTempDataLen = 0;
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int imageWidth;
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int imageHeight;
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auto textDef = textDefinition;
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auto contentScaleFactor = CC_CONTENT_SCALE_FACTOR();
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textDef._fontSize *= contentScaleFactor;
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textDef._dimensions.width *= contentScaleFactor;
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textDef._dimensions.height *= contentScaleFactor;
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textDef._stroke._strokeSize *= contentScaleFactor;
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textDef._shadow._shadowEnabled = false;
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bool hasPremultipliedAlpha;
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Data outData = Device::getTextureDataForText(text, textDef, align, imageWidth, imageHeight, hasPremultipliedAlpha);
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if(outData.isNull())
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{
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return false;
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}
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Size imageSize = Size((float)imageWidth, (float)imageHeight);
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pixelFormat = backend::PixelFormatUtils::convertDataToFormat(outData.getBytes(), imageWidth*imageHeight*4, PixelFormat::RGBA8888, pixelFormat, &outTempData, &outTempDataLen);
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ret = initWithData(outTempData, outTempDataLen, pixelFormat, imageWidth, imageHeight, imageSize);
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if (outTempData != nullptr && outTempData != outData.getBytes())
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{
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free(outTempData);
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}
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_hasPremultipliedAlpha = hasPremultipliedAlpha;
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return ret;
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}
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bool Texture2D::initWithBackendTexture(backend::Texture *texture)
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{
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CC_SAFE_RETAIN(texture);
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CC_SAFE_RELEASE(_texture);
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_texture = dynamic_cast<backend::Texture2D*>(texture);
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CC_ASSERT(_texture);
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_pixelsWide = _contentSize.width = _texture->getWidth();
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_pixelsHigh = _contentSize.height = _texture->getHeight();
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return true;
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}
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bool Texture2D::hasMipmaps() const
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{
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return _texture->hasMipmaps();
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}
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void Texture2D::setAliasTexParameters()
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{
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if (! _antialiasEnabled)
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{
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return;
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}
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_antialiasEnabled = false;
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backend::SamplerDescriptor descriptor(
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backend::SamplerFilter::NEAREST, //magFilter
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(_texture->hasMipmaps()) ? backend::SamplerFilter::NEAREST_MIPMAP_NEAREST : backend::SamplerFilter::NEAREST, //minFilter
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backend::SamplerAddressMode::DONT_CARE, //sAddressMode
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backend::SamplerAddressMode::DONT_CARE//tAddressMode
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);
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_texture->updateSamplerDescriptor(descriptor);
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}
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void Texture2D::setAntiAliasTexParameters()
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{
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if ( _antialiasEnabled )
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{
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return;
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}
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_antialiasEnabled = true;
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backend::SamplerDescriptor descriptor(
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backend::SamplerFilter::LINEAR, //magFilter
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(_texture->hasMipmaps()) ? backend::SamplerFilter::LINEAR_MIPMAP_NEAREST : backend::SamplerFilter::LINEAR, //minFilter
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backend::SamplerAddressMode::DONT_CARE, //sAddressMode
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backend::SamplerAddressMode::DONT_CARE //tAddressMode
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);
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_texture->updateSamplerDescriptor(descriptor);
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}
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const char* Texture2D::getStringForFormat() const
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{
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switch (_pixelFormat)
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{
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case backend::PixelFormat::RGBA8888:
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return "RGBA8888";
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case backend::PixelFormat::RGB888:
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return "RGB888";
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case backend::PixelFormat::RGB565:
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return "RGB565";
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case backend::PixelFormat::RGBA4444:
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return "RGBA4444";
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case backend::PixelFormat::RGB5A1:
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return "RGB5A1";
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case backend::PixelFormat::AI88:
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return "AI88";
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case backend::PixelFormat::A8:
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return "A8";
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case backend::PixelFormat::I8:
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return "I8";
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case backend::PixelFormat::PVRTC4:
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return "PVRTC4";
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case backend::PixelFormat::PVRTC2:
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return "PVRTC2";
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case backend::PixelFormat::PVRTC2A:
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return "PVRTC2A";
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case backend::PixelFormat::PVRTC4A:
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return "PVRTC4A";
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case backend::PixelFormat::ETC:
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return "ETC";
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case backend::PixelFormat::S3TC_DXT1:
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return "S3TC_DXT1";
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case backend::PixelFormat::S3TC_DXT3:
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return "S3TC_DXT3";
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case backend::PixelFormat::S3TC_DXT5:
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return "S3TC_DXT5";
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case backend::PixelFormat::ATC_RGB:
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return "ATC_RGB";
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case backend::PixelFormat::ATC_EXPLICIT_ALPHA:
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return "ATC_EXPLICIT_ALPHA";
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case backend::PixelFormat::ATC_INTERPOLATED_ALPHA:
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return "ATC_INTERPOLATED_ALPHA";
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case backend::PixelFormat::MTL_ABGR4:
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return "MTL_ABGR4";
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case backend::PixelFormat::MTL_B5G6R5:
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return "MTL_RGB565";
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case backend::PixelFormat::MTL_BGR5A1:
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return "MTL_BGR5A1";
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default:
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CCASSERT(false , "unrecognized pixel format");
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CCLOG("stringForFormat: %ld, cannot give useful result", (long)_pixelFormat);
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break;
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}
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return nullptr;
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}
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//
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// Texture options for images that contains alpha
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//
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// implementation Texture2D (PixelFormat)
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void Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat format)
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{
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g_defaultAlphaPixelFormat = format;
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}
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backend::PixelFormat Texture2D::getDefaultAlphaPixelFormat()
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{
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return g_defaultAlphaPixelFormat;
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}
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unsigned int Texture2D::getBitsPerPixelForFormat(backend::PixelFormat format) const
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{
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if (format == PixelFormat::NONE || format == PixelFormat::DEFAULT)
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{
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return 0;
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}
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return _pixelFormatInfoTables.at(format).bpp;
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}
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unsigned int Texture2D::getBitsPerPixelForFormat() const
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{
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return this->getBitsPerPixelForFormat(_pixelFormat);
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}
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const Texture2D::PixelFormatInfoMap& Texture2D::getPixelFormatInfoMap()
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{
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return _pixelFormatInfoTables;
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}
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void Texture2D::addSpriteFrameCapInset(SpriteFrame* spritframe, const Rect& capInsets)
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{
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if(nullptr == _ninePatchInfo)
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{
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_ninePatchInfo = new (std::nothrow) NinePatchInfo;
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}
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if(nullptr == spritframe)
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{
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_ninePatchInfo->capInsetSize = capInsets;
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}
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else
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{
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_ninePatchInfo->capInsetMap[spritframe] = capInsets;
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}
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}
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bool Texture2D::isContain9PatchInfo()const
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{
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return nullptr != _ninePatchInfo;
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}
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const Rect& Texture2D::getSpriteFrameCapInset( cocos2d::SpriteFrame *spriteFrame )const
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{
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CCASSERT(_ninePatchInfo != nullptr,
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"Can't get the sprite frame capInset when the texture contains no 9-patch info.");
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if(nullptr == spriteFrame)
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{
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return this->_ninePatchInfo->capInsetSize;
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}
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else
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{
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auto &capInsetMap = this->_ninePatchInfo->capInsetMap;
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if(capInsetMap.find(spriteFrame) != capInsetMap.end())
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{
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return capInsetMap.at(spriteFrame);
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}
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else
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{
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return this->_ninePatchInfo->capInsetSize;
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}
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}
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}
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void Texture2D::removeSpriteFrameCapInset(SpriteFrame* spriteFrame)
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{
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if(nullptr != this->_ninePatchInfo)
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{
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auto capInsetMap = this->_ninePatchInfo->capInsetMap;
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if(capInsetMap.find(spriteFrame) != capInsetMap.end())
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{
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capInsetMap.erase(spriteFrame);
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}
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}
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}
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/// halx99 spec, ANDROID ETC1 ALPHA supports.
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void Texture2D::setAlphaTexture(Texture2D* alphaTexture)
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{
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if (alphaTexture != nullptr) {
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alphaTexture->retain();
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CC_SAFE_RELEASE(_alphaTexture);
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_alphaTexture = alphaTexture;
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_hasPremultipliedAlpha = true; // PremultipliedAlpha should be true.
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}
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}
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Texture2D* Texture2D::getAlphaTexture() const
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{
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return _alphaTexture;
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}
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void Texture2D::setTexParameters(const Texture2D::TexParams &desc)
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{
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_texture->updateSamplerDescriptor(desc);
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}
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void Texture2D::generateMipmap()
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{
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CCASSERT(_pixelsWide == ccNextPOT(_pixelsWide) && _pixelsHigh == ccNextPOT(_pixelsHigh), "Mipmap texture only works in POT textures");
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_texture->generateMipmaps();
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}
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void Texture2D::initProgram()
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{
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if(_programState != nullptr)
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return;
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auto& pipelineDescriptor = _customCommand.getPipelineDescriptor();
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//create program state
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_programState = new (std::nothrow) cocos2d::backend::ProgramState(
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positionTexture_vert, positionTexture_frag);
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_mvpMatrixLocation = _programState->getUniformLocation("u_MVPMatrix");
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_textureLocation = _programState->getUniformLocation("u_texture");
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pipelineDescriptor.programState = _programState;
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//setup vertex layout
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auto& vertexLayout = pipelineDescriptor.vertexLayout;
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auto& attributes = _programState->getProgram()->getActiveAttributes();
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auto iter = attributes.find("a_position");
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if(iter != attributes.end())
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vertexLayout.setAttribute("a_position", iter->second.location, backend::VertexFormat::FLOAT2, 0, false);
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iter = attributes.find("a_texCoord");
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if(iter != attributes.end())
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vertexLayout.setAttribute("a_texCoord", iter->second.location, backend::VertexFormat::FLOAT2, 2 * sizeof(float), false);
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vertexLayout.setLayout(4 * sizeof(float), backend::VertexStepMode::VERTEX);
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//create vertex buffer
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_customCommand.setDrawType(CustomCommand::DrawType::ARRAY);
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_customCommand.setPrimitiveType(CustomCommand::PrimitiveType::TRIANGLE_STRIP);
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_customCommand.createVertexBuffer(4 * sizeof(float), 4, CustomCommand::BufferUsage::DYNAMIC);
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//setup blend state
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BlendFunc blendFunc;
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if(hasPremultipliedAlpha())
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{
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blendFunc = BlendFunc::ALPHA_PREMULTIPLIED;
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}
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else
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{
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blendFunc = BlendFunc::ALPHA_NON_PREMULTIPLIED;
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}
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auto& blendDescriptor = pipelineDescriptor.blendDescriptor;
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blendDescriptor.blendEnabled = true;
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blendDescriptor.sourceRGBBlendFactor = blendDescriptor.sourceAlphaBlendFactor = blendFunc.src;
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blendDescriptor.destinationRGBBlendFactor = blendDescriptor.destinationAlphaBlendFactor = blendFunc.dst;
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_programState->setTexture(_textureLocation, 0, _texture);
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}
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void Texture2D::drawAtPoint(const Vec2 &point, float globalZOrder)
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{
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float width = (float)_pixelsWide * _maxS;
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float height = (float)_pixelsHigh * _maxT;
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Rect rect = { point.x, point.y, width, height };
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drawInRect(rect, globalZOrder);
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}
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void Texture2D::drawInRect(const Rect& rect, float globalZOrder)
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{
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initProgram();
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_customCommand.init(globalZOrder);
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auto director = Director::getInstance();
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const auto& modelView = director->getMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
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const auto& projection = director->getMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
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Mat4 matrixMVP = projection * modelView;
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float vertexData[] = {
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rect.origin.x, rect.origin.y, 0.0f, _maxT,
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rect.size.width + rect.origin.x, rect.origin.y, _maxS, _maxT,
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rect.origin.x, rect.size.height + rect.origin.y, 0.0f, 0.0f,
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rect.size.width + rect.origin.x, rect.size.height + rect.origin.y, _maxS, 0.0f };
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_programState->setUniform(_mvpMatrixLocation, matrixMVP.m, sizeof(matrixMVP.m));
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_customCommand.updateVertexBuffer(vertexData, sizeof(vertexData));
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Director::getInstance()->getRenderer()->addCommand(&_customCommand);
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}
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NS_CC_END
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