bool initTexture()
{
gli::texture2d Texture(gli::load(getDataDirectory() + TEXTURE_DIFFUSE));
if(Texture.empty())
return 0;
gli::gl GL(gli::gl::PROFILE_GL33);
gli::gl::format const Format = GL.translate(Texture.format(), Texture.swizzles());
GLenum const Target = GL.translate(Texture.target());
glm::tvec2<GLsizei> const Dimensions(Texture.extent());
glCreateTextures(GL_TEXTURE_2D, 1, &TextureName[texture::TEXTURE]);
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_BASE_LEVEL, 0);
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_MAX_LEVEL, static_cast<GLint>(Texture.levels() - 1));
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_SWIZZLE_R, Format.Swizzles[0]);
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_SWIZZLE_G, Format.Swizzles[1]);
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_SWIZZLE_B, Format.Swizzles[2]);
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_SWIZZLE_A, Format.Swizzles[3]);
glTextureStorage2D(TextureName[texture::TEXTURE],
static_cast<GLint>(Texture.levels()), Format.Internal,
Dimensions.x, Texture.target() == gli::TARGET_2D ? Dimensions.y : static_cast<GLsizei>(Texture.layers() * Texture.faces()));
for(gli::texture2d::size_type Level = 0; Level < Texture.levels(); ++Level)
{
glTextureSubImage2D(TextureName[texture::TEXTURE], static_cast<GLint>(Level),
0, 0,
static_cast<GLsizei>(Texture[Level].extent().x), static_cast<GLsizei>(Texture[Level].extent().y),
Format.External, Format.Type,
Texture[Level].data());
}
glCreateTextures(GL_TEXTURE_2D_MULTISAMPLE, 1, &TextureName[texture::MULTISAMPLE]);
glTextureParameteri(TextureName[texture::MULTISAMPLE], GL_TEXTURE_BASE_LEVEL, 0);
glTextureParameteri(TextureName[texture::MULTISAMPLE], GL_TEXTURE_MAX_LEVEL, 0);
glTextureStorage2DMultisample(TextureName[texture::MULTISAMPLE], 4, GL_RGBA8, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y, GL_FALSE);
glCreateTextures(GL_TEXTURE_2D, 1, &TextureName[texture::COLORBUFFER]);
glTextureParameteri(TextureName[texture::COLORBUFFER], GL_TEXTURE_BASE_LEVEL, 0);
glTextureParameteri(TextureName[texture::COLORBUFFER], GL_TEXTURE_MAX_LEVEL, 0);
glTextureStorage2D(TextureName[texture::COLORBUFFER], 1, GL_RGBA8, GLsizei(FRAMEBUFFER_SIZE.x), GLsizei(FRAMEBUFFER_SIZE.y));
return true;
}
GLuint glCreateTextureGTC(GLenum target, GLsizei layers, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLsizei samples, GLboolean fixedsamplelocations)
{
GLuint texture = 0;
glCreateTextures(target, 1, &texture);
glTextureParameteri(texture, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTextureParameteri(texture, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
switch (target)
{
case GL_TEXTURE_2D:
assert(layers == 1 && width >= 1 && height >= 1 && depth == 1 && samples == 1 && fixedsamplelocations == GL_TRUE);
glTextureStorage2D(texture, levels, internalformat, width, height);
break;
case GL_TEXTURE_2D_ARRAY:
assert(layers >= 1 && width >= 1 && height >= 1 && depth == 1 && samples == 1 && fixedsamplelocations == GL_TRUE);
glTextureStorage3D(texture, levels, internalformat, width, height, layers);
break;
case GL_TEXTURE_2D_MULTISAMPLE:
assert(layers == 1 && width >= 1 && height >= 1 && depth == 1 && samples >= 1);
glTextureStorage2DMultisample(texture, samples, internalformat, width, height, fixedsamplelocations);
break;
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
assert(layers >= 1 && width >= 1 && height >= 1 && depth == 1 && samples >= 1);
glTextureStorage3DMultisample(texture, samples, internalformat, width, height, layers, fixedsamplelocations);
break;
case GL_TEXTURE_3D:
assert(layers == 1 && width >= 1 && height >= 1 && depth >= 1 && samples == 1 && fixedsamplelocations == GL_TRUE);
glTextureStorage3D(texture, levels, internalformat, width, height, depth);
break;
case GL_TEXTURE_CUBE_MAP:
assert(layers == 1 && width >= 1 && height >= 1 && depth == 1 && samples == 1 && fixedsamplelocations == GL_TRUE);
glTextureStorage2D(texture, levels, internalformat, width, height);
break;
case GL_TEXTURE_CUBE_MAP_ARRAY:
assert(layers >= 1 && width >= 1 && height >= 1 && depth == 1 && samples == 1 && fixedsamplelocations == GL_TRUE);
glTextureStorage3D(texture, levels, internalformat, width, height, layers * 6);
break;
}
return texture;
}
bool initTexture()
{
gli::texture2d Texture(gli::load_dds((getDataDirectory() + TEXTURE_DIFFUSE).c_str()));
if(Texture.empty())
return false;
gli::gl GL;
gli::gl::format const Format = GL.translate(Texture.format());
glCreateTextures(GL_TEXTURE_2D, 1, &TextureName[texture::TEXTURE]);
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_BASE_LEVEL, 0);
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_MAX_LEVEL, static_cast<GLint>(Texture.levels() - 1));
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTextureParameteri(TextureName[texture::TEXTURE], GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTextureStorage2D(TextureName[texture::TEXTURE], GLint(Texture.levels()), Format.Internal, GLsizei(Texture[0].extent().x), GLsizei(Texture[0].extent().y));
for(std::size_t Level = 0; Level < Texture.levels(); ++Level)
{
glTextureSubImage2D(TextureName[texture::TEXTURE], GLint(Level),
0, 0,
GLsizei(Texture[Level].extent().x), GLsizei(Texture[Level].extent().y),
Format.External, Format.Type,
Texture[Level].data());
}
glCreateTextures(GL_TEXTURE_2D_MULTISAMPLE, 1, &TextureName[texture::MULTISAMPLE]);
glTextureParameteri(TextureName[texture::MULTISAMPLE], GL_TEXTURE_BASE_LEVEL, 0);
glTextureParameteri(TextureName[texture::MULTISAMPLE], GL_TEXTURE_MAX_LEVEL, 0);
glTextureStorage2DMultisample(TextureName[texture::MULTISAMPLE], 4, GL_RGBA8, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y, GL_FALSE);
glCreateTextures(GL_TEXTURE_2D, 1, &TextureName[texture::COLORBUFFER]);
glTextureParameteri(TextureName[texture::COLORBUFFER], GL_TEXTURE_BASE_LEVEL, 0);
glTextureParameteri(TextureName[texture::COLORBUFFER], GL_TEXTURE_MAX_LEVEL, 0);
glTextureStorage2D(TextureName[texture::COLORBUFFER], 1, GL_RGBA8, GLsizei(FRAMEBUFFER_SIZE.x), GLsizei(FRAMEBUFFER_SIZE.y));
return true;
}
