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#pragma once
#include "glconstants.hpp"
#include "pointers.hpp"
#include "drape_global.hpp"
#include "std/cstdint.hpp"
namespace dp
{
class HWTextureAllocator;
class HWTexture
{
public:
HWTexture();
virtual ~HWTexture() {}
struct Params
{
Params()
: m_filter(gl_const::GLLinear)
, m_wrapSMode(gl_const::GLClampToEdge)
, m_wrapTMode(gl_const::GLClampToEdge)
, m_format(UNSPECIFIED)
{
}
uint32_t m_width;
uint32_t m_height;
glConst m_filter;
glConst m_wrapSMode;
glConst m_wrapTMode;
TextureFormat m_format;
ref_ptr<HWTextureAllocator> m_allocator;
};
void Create(Params const & params);
virtual void Create(Params const & params, ref_ptr<void> data) = 0;
virtual void UploadData(uint32_t x, uint32_t y, uint32_t width, uint32_t height, ref_ptr<void> data) = 0;
void Bind() const;
// Texture must be bound before calling this method.
void SetFilter(glConst filter);
TextureFormat GetFormat() const;
uint32_t GetWidth() const;
uint32_t GetHeight() const;
float GetS(uint32_t x) const;
float GetT(uint32_t y) const;
protected:
void UnpackFormat(TextureFormat format, glConst & layout, glConst & pixelType);
int32_t GetID() const;
uint32_t m_width;
uint32_t m_height;
TextureFormat m_format;
int32_t m_textureID;
glConst m_filter;
};
class HWTextureAllocator
{
public:
virtual ~HWTextureAllocator() {}
virtual drape_ptr<HWTexture> CreateTexture() = 0;
virtual void Flush() = 0;
};
class OpenGLHWTexture : public HWTexture
{
using TBase = HWTexture;
public:
~OpenGLHWTexture();
void Create(Params const & params, ref_ptr<void> data) override;
void UploadData(uint32_t x, uint32_t y, uint32_t width, uint32_t height, ref_ptr<void> data) override;
};
class OpenGLHWTextureAllocator : public HWTextureAllocator
{
public:
drape_ptr<HWTexture> CreateTexture() override;
void Flush() override {}
};
ref_ptr<HWTextureAllocator> GetDefaultAllocator();
drape_ptr<HWTextureAllocator> CreateAllocator();
}
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