axmol/cocos/renderer/backend/opengl/TextureGL.h

101 lines
3.9 KiB
C++

/****************************************************************************
Copyright (c) 2018-2019 Xiamen Yaji Software Co., Ltd.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#pragma once
#include "../Texture.h"
#include "platform/CCGL.h"
#include "base/CCEventListenerCustom.h"
CC_BACKEND_BEGIN
struct TextureInfoGL
{
void applySamplerDescriptor(const SamplerDescriptor &desc, bool isPow2, bool hasMipmaps);
GLint magFilterGL = GL_LINEAR;
GLint minFilterGL = GL_LINEAR;
GLint sAddressModeGL = GL_REPEAT;
GLint tAddressModeGL = GL_REPEAT;
// Used in glTexImage2D().
GLint internalFormat = GL_RGBA;
GLenum format = GL_RGBA;
GLenum type = GL_UNSIGNED_BYTE;
GLuint texture = 0;
};
class Texture2DGL : public backend::Texture2DBackend
{
public:
Texture2DGL(const TextureDescriptor& descriptor);
~Texture2DGL();
virtual void updateData(uint8_t* data, uint32_t width , uint32_t height, uint32_t level) override;
virtual void updateCompressedData(uint8_t* data, uint32_t width , uint32_t height, uint32_t dataLen, uint32_t level) override;
virtual void updateSubData(uint32_t xoffset, uint32_t yoffset, uint32_t width, uint32_t height, uint32_t level, uint8_t* data) override;
virtual void updateCompressedSubData(uint32_t xoffset, uint32_t yoffset, uint32_t width, uint32_t height, uint32_t dataLen, uint32_t level, uint8_t* data) override;
virtual void updateSamplerDescriptor(const SamplerDescriptor &sampler) override;
virtual void getBytes(int x, int y, int width, int height, bool flipImage, std::function<void(const unsigned char*, int, int)> callback) override;
virtual void generateMipmaps() override;
virtual void updateTextureDescriptor(const TextureDescriptor& descriptor) override;
inline GLuint getHandler() const { return _textureInfo.texture; }
void apply(int index) const;
private:
void initWithZeros();
SamplerDescriptor _samplerDescriptor;
TextureInfoGL _textureInfo;
EventListener* _backToForegroundListener = nullptr;
};
class TextureCubeGL: public backend::TextureCubemapBackend
{
public:
TextureCubeGL(const TextureDescriptor& descriptor);
~TextureCubeGL();
virtual void updateSamplerDescriptor(const SamplerDescriptor &sampler) override;
virtual void updateFaceData(TextureCubeFace side, void *data) override;
virtual void getBytes(int x, int y, int width, int height, bool flipImage, std::function<void(const unsigned char*, int, int)> callback) override;
virtual void generateMipmaps() override;
virtual void updateTextureDescriptor(const TextureDescriptor& descriptor) override ;
inline GLuint getHandler() const { return _textureInfo.texture; }
void apply(int index) const;
private:
void setTexParameters();
TextureInfoGL _textureInfo;
EventListener* _backToForegroundListener = nullptr;
};
CC_BACKEND_END