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Added GenerateTexture, GenerateMipMapTexture and DeleteTexture to CommonFunctions

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This commit is contained in:
Teejoon
2016-02-28 16:16:22 +01:00
parent d3a245606a
commit 9cbc6f7755
11 changed files with 74 additions and 85 deletions
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src/Engine/Rendering/Util/CommonFunctions.cpp
+33
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@@ -17,3 +17,36 @@ Texture* CommonFunctions::LoadTexture(std::string path, bool threaded)
return img;
}
void CommonFunctions::GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filtering, glm::vec2 dimensions, GLint internalFormat, GLint format, GLenum type)
{
glDeleteTextures(1, texture);
glGenTextures(1, texture);
glBindTexture(GL_TEXTURE_2D, *texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapping);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapping);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering);
glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, dimensions.x, dimensions.y, 0, format, type, nullptr);
GLERROR("Texture initialization failed");
}
void CommonFunctions::GenerateMipMapTexture(GLuint* texture, GLenum wrapping, glm::vec2 dimensions, GLint format, GLenum type, GLint numMipMaps)
{
glGenTextures(1, texture);
glBindTexture(GL_TEXTURE_2D, *texture);
glTexStorage2D(GL_TEXTURE_2D, numMipMaps, GL_RGBA8, dimensions.x, dimensions.y);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, dimensions.x, dimensions.y, format, type, texture);
glGenerateMipmap(GL_TEXTURE_2D);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapping);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapping);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
GLERROR("MipMap Texture initialization failed");
}
void CommonFunctions::DeleteTexture(GLuint* texture)
{
glDeleteTextures(1, texture);
*texture = 0;
}