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#pragma once
#include "drape/drape_global.hpp"
#include "drape/pointers.hpp"
#include <string>
namespace dp
{
enum ClearBits : uint32_t
{
ColorBit = 1,
DepthBit = 1 << 1,
StencilBit = 1 << 2
};
uint32_t constexpr kClearBitsStoreAll = ClearBits::ColorBit | ClearBits::DepthBit | ClearBits::StencilBit;
enum class TestFunction : uint8_t
{
Never = 0,
Less,
Equal,
LessOrEqual,
Greater,
NotEqual,
GreaterOrEqual,
Always
};
enum class StencilFace : uint8_t
{
Front = 0,
Back,
FrontAndBack
};
enum class StencilAction : uint8_t
{
Keep = 0,
Zero,
Replace,
Increment,
IncrementWrap,
Decrement,
DecrementWrap,
Invert
};
class GraphicsContext
{
public:
virtual ~GraphicsContext() = default;
virtual bool BeginRendering() { return true; }
virtual void EndRendering() {}
virtual void Present() = 0;
virtual void MakeCurrent() = 0;
virtual void DoneCurrent() {}
// The value 'nullptr' means default(system) framebuffer.
virtual void SetFramebuffer(ref_ptr<BaseFramebuffer> framebuffer) = 0;
virtual void ApplyFramebuffer(std::string const & framebufferLabel) = 0;
// w, h - pixel size of render target (logical size * visual scale).
virtual void Resize(int /* w */, int /* h */) {}
virtual void SetRenderingEnabled(bool /* enabled */) {}
virtual void SetPresentAvailable(bool /* available */) {}
virtual bool Validate() { return true; }
virtual void CollectMemory() {}
virtual void Init(ApiVersion apiVersion) = 0;
virtual ApiVersion GetApiVersion() const = 0;
virtual std::string GetRendererName() const = 0;
virtual std::string GetRendererVersion() const = 0;
virtual void DebugSynchronizeWithCPU() {}
virtual void PushDebugLabel(std::string const & label) = 0;
virtual void PopDebugLabel() = 0;
virtual void SetClearColor(Color const & color) = 0;
virtual void Clear(uint32_t clearBits, uint32_t storeBits) = 0;
virtual void Flush() = 0;
virtual void SetViewport(uint32_t x, uint32_t y, uint32_t w, uint32_t h) = 0;
virtual void SetDepthTestEnabled(bool enabled) = 0;
virtual void SetDepthTestFunction(TestFunction depthFunction) = 0;
virtual void SetStencilTestEnabled(bool enabled) = 0;
virtual void SetStencilFunction(StencilFace face, TestFunction stencilFunction) = 0;
virtual void SetStencilActions(StencilFace face, StencilAction stencilFailAction,
StencilAction depthFailAction, StencilAction passAction) = 0;
virtual void SetStencilReferenceValue(uint32_t stencilReferenceValue) = 0;
};
} // namespace dp
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