81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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#include "texture.h"
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#include "viewerutil.h"
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using namespace viewer;
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Texture::Texture(int width, int height) : m_width(width), m_height(height)
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{
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glGenTextures(1, &m_name);
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glBindTexture(GL_TEXTURE_2D, m_name);
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// Set filtering mode so the texture gets sampled properly
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//
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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// Reserve storage for the texture
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//
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glTexStorage2D(GL_TEXTURE_2D, // target
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1, // levels
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GL_RGBA32F, // internalformat
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m_width, // width
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m_height); // height
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CheckOpenGLErrors();
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}
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Texture::Texture(Texture &&other)
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{
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*this = std::move(other);
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}
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Texture &Texture::operator=(Texture &&other)
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{
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if (this == &other)
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{
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return *this;
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}
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DeleteTexture();
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m_name = other.m_name;
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m_height = other.m_height;
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m_width = other.m_width;
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other.m_name = InvalidTextureName;
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other.m_height = 0;
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other.m_width = 0;
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return *this;
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}
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Texture::~Texture()
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{
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DeleteTexture();
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}
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void Texture::DeleteTexture()
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{
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glDeleteTextures(1, &m_name);
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}
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void Texture::Update(const BgraPixel *data)
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{
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glBindTexture(GL_TEXTURE_2D, m_name);
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glTexSubImage2D(GL_TEXTURE_2D, // target
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0, // level
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0, // xoffset
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0, // yoffset
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m_width, // width
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m_height, // height
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GL_BGRA, // format
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GL_UNSIGNED_BYTE, // type
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reinterpret_cast<const GLvoid *>(data)); // pixels
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CheckOpenGLErrors();
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}
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