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39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
#include "stdafx.h"
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#include "cubemap.h"
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gl::cubemap::cubemap()
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{
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glGenTextures(1, *this);
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glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
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}
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gl::cubemap::~cubemap()
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{
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glDeleteTextures(1, *this);
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}
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void gl::cubemap::alloc(GLint format, int width, int height, GLenum components, GLenum type)
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{
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glBindTexture(GL_TEXTURE_CUBE_MAP, *this);
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for (GLuint tgt = GL_TEXTURE_CUBE_MAP_POSITIVE_X; tgt <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z; tgt++)
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glTexImage2D(tgt, 0, format, width, height, 0, components, type, nullptr);
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glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
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}
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void gl::cubemap::bind(int unit)
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{
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glActiveTexture(unit);
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glBindTexture(GL_TEXTURE_CUBE_MAP, *this);
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}
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void gl::cubemap::generate_mipmaps()
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{
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glBindTexture(GL_TEXTURE_CUBE_MAP, *this);
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glGenerateMipmap(GL_TEXTURE_CUBE_MAP);
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glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
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}
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