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#pragma once
#include <mbgl/gl/features.hpp>
#include <mbgl/gl/extension.hpp>
#include <mbgl/gl/gl.hpp>
#define GL_TEXTURE_MAX_ANISOTROPY 0x84FE
#define GL_MAX_TEXTURE_MAX_ANISOTROPY 0x84FF
namespace mbgl {
namespace gl {
namespace extension {
class TextureFilterAnisotropic {
public:
template <typename Fn>
TextureFilterAnisotropic(const Fn& loadExtension)
: available(loadExtension({ "GL_EXT_texture_filter_anisotropic" })),
maximum([this] {
float value = 1.0f;
if (available) {
MBGL_CHECK_ERROR(glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY, &value));
}
return value;
}()) {
}
const bool available;
const TextureAnisotropic maximum;
};
} // namespace extension
} // namespace gl
} // namespace mbgl
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