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Diffstat (limited to 'source/Irrlicht/OpenGL/Driver.h')
| -rw-r--r-- | source/Irrlicht/OpenGL/Driver.h | 395 |
1 files changed, 395 insertions, 0 deletions
diff --git a/source/Irrlicht/OpenGL/Driver.h b/source/Irrlicht/OpenGL/Driver.h new file mode 100644 index 0000000..06907b7 --- /dev/null +++ b/source/Irrlicht/OpenGL/Driver.h @@ -0,0 +1,395 @@ +// Copyright (C) 2023 Vitaliy Lobachevskiy +// Copyright (C) 2014 Patryk Nadrowski +// Copyright (C) 2009-2010 Amundis +// This file is part of the "Irrlicht Engine". +// For conditions of distribution and use, see copyright notice in Irrlicht.h + +#pragma once + +#include "SIrrCreationParameters.h" + +#include "Common.h" +#include "CNullDriver.h" +#include "IMaterialRendererServices.h" +#include "EDriverFeatures.h" +#include "fast_atof.h" +#include "ExtensionHandler.h" +#include "IContextManager.h" + +namespace irr +{ +namespace video +{ + struct VertexType; + + class COpenGL3FixedPipelineRenderer; + class COpenGL3Renderer2D; + + class COpenGL3DriverBase : public CNullDriver, public IMaterialRendererServices, public COpenGL3ExtensionHandler + { + friend class COpenGLCoreTexture<COpenGL3DriverBase>; + + protected: + //! constructor (use createOpenGL3Driver instead) + COpenGL3DriverBase(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager); + + public: + + //! destructor + virtual ~COpenGL3DriverBase(); + + virtual bool beginScene(u16 clearFlag, SColor clearColor = SColor(255, 0, 0, 0), f32 clearDepth = 1.f, u8 clearStencil = 0, + const SExposedVideoData& videoData = SExposedVideoData(), core::rect<s32>* sourceRect = 0) override; + + bool endScene() override; + + //! sets transformation + void setTransform(E_TRANSFORMATION_STATE state, const core::matrix4& mat) override; + + struct SHWBufferLink_opengl : public SHWBufferLink + { + SHWBufferLink_opengl(const scene::IMeshBuffer *meshBuffer) + : SHWBufferLink(meshBuffer), vbo_verticesID(0), vbo_indicesID(0) + , vbo_verticesSize(0), vbo_indicesSize(0) + {} + + u32 vbo_verticesID; //tmp + u32 vbo_indicesID; //tmp + + u32 vbo_verticesSize; //tmp + u32 vbo_indicesSize; //tmp + }; + + bool updateVertexHardwareBuffer(SHWBufferLink_opengl *HWBuffer); + bool updateIndexHardwareBuffer(SHWBufferLink_opengl *HWBuffer); + + //! updates hardware buffer if needed + bool updateHardwareBuffer(SHWBufferLink *HWBuffer) override; + + //! Create hardware buffer from mesh + SHWBufferLink *createHardwareBuffer(const scene::IMeshBuffer* mb) override; + + //! Delete hardware buffer (only some drivers can) + void deleteHardwareBuffer(SHWBufferLink *HWBuffer) override; + + //! Draw hardware buffer + void drawHardwareBuffer(SHWBufferLink *HWBuffer) override; + + IRenderTarget* addRenderTarget() override; + + //! draws a vertex primitive list + virtual void drawVertexPrimitiveList(const void* vertices, u32 vertexCount, + const void* indexList, u32 primitiveCount, + E_VERTEX_TYPE vType, scene::E_PRIMITIVE_TYPE pType, E_INDEX_TYPE iType) override; + + //! queries the features of the driver, returns true if feature is available + bool queryFeature(E_VIDEO_DRIVER_FEATURE feature) const override + { + return FeatureEnabled[feature] && COpenGL3ExtensionHandler::queryFeature(feature); + } + + //! Sets a material. + void setMaterial(const SMaterial& material) override; + + virtual void draw2DImage(const video::ITexture* texture, + const core::position2d<s32>& destPos, + const core::rect<s32>& sourceRect, const core::rect<s32>* clipRect = 0, + SColor color = SColor(255, 255, 255, 255), bool useAlphaChannelOfTexture = false) override; + + virtual void draw2DImage(const video::ITexture* texture, const core::rect<s32>& destRect, + const core::rect<s32>& sourceRect, const core::rect<s32>* clipRect = 0, + const video::SColor* const colors = 0, bool useAlphaChannelOfTexture = false) override; + + // internally used + virtual void draw2DImage(const video::ITexture* texture, u32 layer, bool flip); + + void draw2DImageBatch(const video::ITexture* texture, + const core::array<core::position2d<s32> >& positions, + const core::array<core::rect<s32> >& sourceRects, + const core::rect<s32>* clipRect, + SColor color, + bool useAlphaChannelOfTexture) override; + + //! draw an 2d rectangle + virtual void draw2DRectangle(SColor color, const core::rect<s32>& pos, + const core::rect<s32>* clip = 0) override; + + //!Draws an 2d rectangle with a gradient. + virtual void draw2DRectangle(const core::rect<s32>& pos, + SColor colorLeftUp, SColor colorRightUp, SColor colorLeftDown, SColor colorRightDown, + const core::rect<s32>* clip = 0) override; + + //! Draws a 2d line. + virtual void draw2DLine(const core::position2d<s32>& start, + const core::position2d<s32>& end, + SColor color = SColor(255, 255, 255, 255)) override; + + //! Draws a single pixel + void drawPixel(u32 x, u32 y, const SColor & color) override; + + //! Draws a 3d line. + virtual void draw3DLine(const core::vector3df& start, + const core::vector3df& end, + SColor color = SColor(255, 255, 255, 255)) override; + + //! Draws a pixel +// virtual void drawPixel(u32 x, u32 y, const SColor & color); + + //! Returns the name of the video driver. + const wchar_t* getName() const override; + + //! Returns the maximum texture size supported. + core::dimension2du getMaxTextureSize() const override; + + //! sets a viewport + void setViewPort(const core::rect<s32>& area) override; + + //! Only used internally by the engine + void OnResize(const core::dimension2d<u32>& size) override; + + //! Returns type of video driver + E_DRIVER_TYPE getDriverType() const override; + + //! get color format of the current color buffer + ECOLOR_FORMAT getColorFormat() const override; + + //! Returns the transformation set by setTransform + const core::matrix4& getTransform(E_TRANSFORMATION_STATE state) const override; + + //! Can be called by an IMaterialRenderer to make its work easier. + void setBasicRenderStates(const SMaterial& material, const SMaterial& lastmaterial, bool resetAllRenderstates) override; + + //! Compare in SMaterial doesn't check texture parameters, so we should call this on each OnRender call. + void setTextureRenderStates(const SMaterial& material, bool resetAllRenderstates); + + //! Get a vertex shader constant index. + s32 getVertexShaderConstantID(const c8* name) override; + + //! Get a pixel shader constant index. + s32 getPixelShaderConstantID(const c8* name) override; + + //! Sets a vertex shader constant. + void setVertexShaderConstant(const f32* data, s32 startRegister, s32 constantAmount = 1) override; + + //! Sets a pixel shader constant. + void setPixelShaderConstant(const f32* data, s32 startRegister, s32 constantAmount = 1) override; + + //! Sets a constant for the vertex shader based on an index. + bool setVertexShaderConstant(s32 index, const f32* floats, int count) override; + + //! Int interface for the above. + bool setVertexShaderConstant(s32 index, const s32* ints, int count) override; + + //! Uint interface for the above. + bool setVertexShaderConstant(s32 index, const u32* ints, int count) override; + + //! Sets a constant for the pixel shader based on an index. + bool setPixelShaderConstant(s32 index, const f32* floats, int count) override; + + //! Int interface for the above. + bool setPixelShaderConstant(s32 index, const s32* ints, int count) override; + + //! Uint interface for the above. + bool setPixelShaderConstant(s32 index, const u32* ints, int count) override; + + //! Adds a new material renderer to the VideoDriver + virtual s32 addShaderMaterial(const c8* vertexShaderProgram, const c8* pixelShaderProgram, + IShaderConstantSetCallBack* callback, E_MATERIAL_TYPE baseMaterial, s32 userData) override; + + //! Adds a new material renderer to the VideoDriver + virtual s32 addHighLevelShaderMaterial( + const c8* vertexShaderProgram, + const c8* vertexShaderEntryPointName = 0, + E_VERTEX_SHADER_TYPE vsCompileTarget = EVST_VS_1_1, + const c8* pixelShaderProgram = 0, + const c8* pixelShaderEntryPointName = 0, + E_PIXEL_SHADER_TYPE psCompileTarget = EPST_PS_1_1, + const c8* geometryShaderProgram = 0, + const c8* geometryShaderEntryPointName = "main", + E_GEOMETRY_SHADER_TYPE gsCompileTarget = EGST_GS_4_0, + scene::E_PRIMITIVE_TYPE inType = scene::EPT_TRIANGLES, + scene::E_PRIMITIVE_TYPE outType = scene::EPT_TRIANGLE_STRIP, + u32 verticesOut = 0, + IShaderConstantSetCallBack* callback = 0, + E_MATERIAL_TYPE baseMaterial = video::EMT_SOLID, + s32 userData=0) override; + + //! Returns pointer to the IGPUProgrammingServices interface. + IGPUProgrammingServices* getGPUProgrammingServices() override; + + //! Returns a pointer to the IVideoDriver interface. + IVideoDriver* getVideoDriver() override; + + //! Returns the maximum amount of primitives + u32 getMaximalPrimitiveCount() const override; + + virtual ITexture* addRenderTargetTexture(const core::dimension2d<u32>& size, + const io::path& name, const ECOLOR_FORMAT format = ECF_UNKNOWN) override; + + //! Creates a render target texture for a cubemap + ITexture* addRenderTargetTextureCubemap(const irr::u32 sideLen, + const io::path& name, const ECOLOR_FORMAT format) override; + + virtual bool setRenderTargetEx(IRenderTarget* target, u16 clearFlag, SColor clearColor = SColor(255, 0, 0, 0), + f32 clearDepth = 1.f, u8 clearStencil = 0) override; + + void clearBuffers(u16 flag, SColor color = SColor(255, 0, 0, 0), f32 depth = 1.f, u8 stencil = 0) override; + + //! Returns an image created from the last rendered frame. + IImage* createScreenShot(video::ECOLOR_FORMAT format=video::ECF_UNKNOWN, video::E_RENDER_TARGET target=video::ERT_FRAME_BUFFER) override; + + //! checks if an OpenGL error has happened and prints it (+ some internal code which is usually the line number) + bool testGLError(int code=0); + + //! checks if an OGLES1 error has happened and prints it + bool testEGLError(); + + //! Set/unset a clipping plane. + bool setClipPlane(u32 index, const core::plane3df& plane, bool enable = false) override; + + //! returns the current amount of user clip planes set. + u32 getClipPlaneCount() const; + + //! returns the 0 indexed Plane + const core::plane3df& getClipPlane(u32 index) const; + + //! Enable/disable a clipping plane. + void enableClipPlane(u32 index, bool enable) override; + + //! Returns the graphics card vendor name. + core::stringc getVendorInfo() override + { + return VendorName; + }; + + void removeTexture(ITexture* texture) override; + + //! Check if the driver supports creating textures with the given color format + bool queryTextureFormat(ECOLOR_FORMAT format) const override; + + //! Used by some SceneNodes to check if a material should be rendered in the transparent render pass + bool needsTransparentRenderPass(const irr::video::SMaterial& material) const override; + + //! Convert E_BLEND_FACTOR to OpenGL equivalent + GLenum getGLBlend(E_BLEND_FACTOR factor) const; + + virtual bool getColorFormatParameters(ECOLOR_FORMAT format, GLint& internalFormat, GLenum& pixelFormat, + GLenum& pixelType, void(**converter)(const void*, s32, void*)) const; + + //! Get current material. + const SMaterial& getCurrentMaterial() const; + + COpenGL3CacheHandler* getCacheHandler() const; + + protected: + //! inits the opengl-es driver + virtual bool genericDriverInit(const core::dimension2d<u32>& screenSize, bool stencilBuffer); + + void chooseMaterial2D(); + + ITexture* createDeviceDependentTexture(const io::path& name, IImage* image) override; + + ITexture* createDeviceDependentTextureCubemap(const io::path& name, const core::array<IImage*>& image) override; + + //! Map Irrlicht wrap mode to OpenGL enum + GLint getTextureWrapMode(u8 clamp) const; + + //! sets the needed renderstates + void setRenderStates3DMode(); + + //! sets the needed renderstates + void setRenderStates2DMode(bool alpha, bool texture, bool alphaChannel); + + //! Prevent setRenderStateMode calls to do anything. + // hack to allow drawing meshbuffers in 2D mode. + // Better solution would be passing this flag through meshbuffers, + // but the way this is currently implemented in Irrlicht makes this tricky to implement + void lockRenderStateMode() + { + LockRenderStateMode = true; + } + + //! Allow setRenderStateMode calls to work again + void unlockRenderStateMode() + { + LockRenderStateMode = false; + } + + void draw2D3DVertexPrimitiveList(const void* vertices, + u32 vertexCount, const void* indexList, u32 primitiveCount, + E_VERTEX_TYPE vType, scene::E_PRIMITIVE_TYPE pType, + E_INDEX_TYPE iType, bool is3D); + + void createMaterialRenderers(); + + void loadShaderData(const io::path& vertexShaderName, const io::path& fragmentShaderName, c8** vertexShaderData, c8** fragmentShaderData); + + bool setMaterialTexture(irr::u32 layerIdx, const irr::video::ITexture* texture); + + //! Same as `CacheHandler->setViewport`, but also sets `ViewPort` + virtual void setViewPortRaw(u32 width, u32 height); + + void drawQuad(const VertexType &vertexType, const S3DVertex (&vertices)[4]); + void drawArrays(GLenum primitiveType, const VertexType &vertexType, const void *vertices, int vertexCount); + void drawElements(GLenum primitiveType, const VertexType &vertexType, const void *vertices, const u16 *indices, int indexCount); + void drawElements(GLenum primitiveType, const VertexType &vertexType, uintptr_t vertices, uintptr_t indices, int indexCount); + + void beginDraw(const VertexType &vertexType, uintptr_t verticesBase); + void endDraw(const VertexType &vertexType); + + COpenGL3CacheHandler* CacheHandler; + core::stringw Name; + core::stringc VendorName; + SIrrlichtCreationParameters Params; + + //! bool to make all renderstates reset if set to true. + bool ResetRenderStates; + bool LockRenderStateMode; + u8 AntiAlias; + + struct SUserClipPlane + { + core::plane3df Plane; + bool Enabled; + }; + + core::array<SUserClipPlane> UserClipPlane; + + core::matrix4 TextureFlipMatrix; + +private: + + COpenGL3Renderer2D* MaterialRenderer2DActive; + COpenGL3Renderer2D* MaterialRenderer2DTexture; + COpenGL3Renderer2D* MaterialRenderer2DNoTexture; + + core::matrix4 Matrices[ETS_COUNT]; + + //! enumeration for rendering modes such as 2d and 3d for minimizing the switching of renderStates. + enum E_RENDER_MODE + { + ERM_NONE = 0, // no render state has been set yet. + ERM_2D, // 2d drawing rendermode + ERM_3D // 3d rendering mode + }; + + E_RENDER_MODE CurrentRenderMode; + bool Transformation3DChanged; + irr::io::path OGLES2ShaderPath; + + SMaterial Material, LastMaterial; + + //! Color buffer format + ECOLOR_FORMAT ColorFormat; + + IContextManager* ContextManager; + + std::vector<u16> QuadsIndices; + void initQuadsIndices(int max_vertex_count = 65536); + + void debugCb(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message); + static void APIENTRY debugCb(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const void *userParam); + }; + +} // end namespace video +} // end namespace irr |