62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
#include "GL/gl3w.h"
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#include "GL/gl.h"
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#include "TextureHelperOpenGL.hpp"
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void TSE::GLFW::TextureHelperOpenGL::Bind(const Texture *tex)
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{
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glBindTexture(GL_TEXTURE_2D, tex->GetTextureId());
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}
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void TSE::GLFW::TextureHelperOpenGL::UnBind(const Texture *tex)
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{
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glBindTexture(GL_TEXTURE_2D, 0);
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}
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void TSE::GLFW::TextureHelperOpenGL::Apply(Texture *tex)
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{
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glBindTexture(GL_TEXTURE_2D, tex->GetTextureId());
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if(tex->Chanels() == 1)
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{
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if (tex->bpp() == 8)
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glTexImage2D(GL_TEXTURE_2D, 0,GL_RGBA, tex->Width(), tex->Height(), 0, GL_RED, GL_UNSIGNED_BYTE, tex->GetImagePtr());
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}
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if(tex->Chanels() == 3)
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{
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if(tex->bpp() == 24)
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glTexImage2D(GL_TEXTURE_2D, 0,GL_RGBA, tex->Width(), tex->Height(), 0, GL_BGR, GL_UNSIGNED_BYTE, tex->GetImagePtr());
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}
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else if(tex->Chanels() == 4)
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{
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if(tex->bpp() == 32)
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glTexImage2D(GL_TEXTURE_2D, 0,GL_RGBA, tex->Width(), tex->Height(), 0, GL_BGRA, GL_UNSIGNED_BYTE, tex->GetImagePtr());
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if (tex->bpp() == 8) //need to decode it with bitwise operations in shader
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glTexImage2D(GL_TEXTURE_2D, 0,GL_RGBA, tex->Width(), tex->Height(), 0, GL_RED, GL_UNSIGNED_BYTE, tex->GetImagePtr());
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}
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glGenerateMipmap(GL_TEXTURE_2D);
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glBindTexture(GL_TEXTURE_2D, 0);
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}
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void TSE::GLFW::TextureHelperOpenGL::Regist(Texture *tex)
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{
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uint TextureID;
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glGenTextures(1, &TextureID);
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glBindTexture(GL_TEXTURE_2D, TextureID);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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tex->SetTextureId(TextureID);
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tex->Apply();
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}
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void TSE::GLFW::TextureHelperOpenGL::PlatromDestroy(Texture *tex)
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{
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uint id = tex->GetTextureId();
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glDeleteTextures(1, &id);
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}
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