mirror of https://github.com/minetest/irrlicht.git
399 lines
16 KiB
C++
399 lines
16 KiB
C++
// Copyright (C) 2002-20014 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in Irrlicht.h
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#ifndef __C_OGLES1_DRIVER_H_INCLUDED__
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#define __C_OGLES1_DRIVER_H_INCLUDED__
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#include "IrrCompileConfig.h"
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#include "SIrrCreationParameters.h"
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#ifdef _IRR_COMPILE_WITH_OGLES1_
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#include "CNullDriver.h"
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#include "IMaterialRendererServices.h"
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#include "EDriverFeatures.h"
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#include "fast_atof.h"
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#include "COGLESExtensionHandler.h"
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#include "IContextManager.h"
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#if defined(_IRR_WINDOWS_API_)
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// include windows headers for HWND
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#endif
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namespace irr
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{
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namespace video
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{
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class COGLES1Driver : public CNullDriver, public IMaterialRendererServices, public COGLES1ExtensionHandler
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{
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friend class COpenGLCoreTexture<COGLES1Driver>;
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public:
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//! constructor
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COGLES1Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
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//! destructor
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virtual ~COGLES1Driver();
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virtual bool beginScene(u16 clearFlag, SColor clearColor = SColor(255, 0, 0, 0), f32 clearDepth = 1.f, u8 clearStencil = 0,
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const SExposedVideoData& videoData = SExposedVideoData(), core::rect<s32>* sourceRect = 0) _IRR_OVERRIDE_;
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virtual bool endScene() _IRR_OVERRIDE_;
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//! sets transformation
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virtual void setTransform(E_TRANSFORMATION_STATE state, const core::matrix4& mat) _IRR_OVERRIDE_;
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struct SHWBufferLink_opengl : public SHWBufferLink
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{
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SHWBufferLink_opengl(const scene::IMeshBuffer *_MeshBuffer): SHWBufferLink(_MeshBuffer), vbo_verticesID(0),vbo_indicesID(0){}
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GLuint vbo_verticesID; //tmp
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GLuint vbo_indicesID; //tmp
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GLuint vbo_verticesSize; //tmp
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GLuint vbo_indicesSize; //tmp
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};
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bool updateVertexHardwareBuffer(SHWBufferLink_opengl *HWBuffer);
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bool updateIndexHardwareBuffer(SHWBufferLink_opengl *HWBuffer);
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//! updates hardware buffer if needed
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virtual bool updateHardwareBuffer(SHWBufferLink *HWBuffer) _IRR_OVERRIDE_;
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//! Create hardware buffer from mesh
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virtual SHWBufferLink *createHardwareBuffer(const scene::IMeshBuffer* mb) _IRR_OVERRIDE_;
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//! Delete hardware buffer (only some drivers can)
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virtual void deleteHardwareBuffer(SHWBufferLink *HWBuffer) _IRR_OVERRIDE_;
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//! Draw hardware buffer
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virtual void drawHardwareBuffer(SHWBufferLink *HWBuffer) _IRR_OVERRIDE_;
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virtual IRenderTarget* addRenderTarget() _IRR_OVERRIDE_;
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//! draws a vertex primitive list
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virtual void drawVertexPrimitiveList(const void* vertices, u32 vertexCount,
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const void* indexList, u32 primitiveCount,
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E_VERTEX_TYPE vType, scene::E_PRIMITIVE_TYPE pType, E_INDEX_TYPE iType) _IRR_OVERRIDE_;
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void drawVertexPrimitiveList2d3d(const void* vertices, u32 vertexCount, const void* indexList, u32 primitiveCount, E_VERTEX_TYPE vType, scene::E_PRIMITIVE_TYPE pType, E_INDEX_TYPE iType=EIT_16BIT, bool threed=true);
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//! queries the features of the driver, returns true if feature is available
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virtual bool queryFeature(E_VIDEO_DRIVER_FEATURE feature) const _IRR_OVERRIDE_
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{
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// return FeatureEnabled[feature] && COGLES1ExtensionHandler::queryFeature(feature);
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return COGLES1ExtensionHandler::queryFeature(feature);
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}
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//! Sets a material.
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virtual void setMaterial(const SMaterial& material) _IRR_OVERRIDE_;
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virtual void draw2DImage(const video::ITexture* texture, const core::position2d<s32>& destPos,
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const core::rect<s32>& sourceRect, const core::rect<s32>* clipRect = 0,
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SColor color = SColor(255, 255, 255, 255), bool useAlphaChannelOfTexture = false) _IRR_OVERRIDE_;
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virtual void draw2DImage(const video::ITexture* texture, const core::rect<s32>& destRect,
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const core::rect<s32>& sourceRect, const core::rect<s32>* clipRect = 0,
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const video::SColor* const colors = 0, bool useAlphaChannelOfTexture = false) _IRR_OVERRIDE_;
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virtual void draw2DImage(const video::ITexture* texture, u32 layer, bool flip);
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//! draws a set of 2d images
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virtual void draw2DImageBatch(const video::ITexture* texture,
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const core::position2d<s32>& pos,
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const core::array<core::rect<s32> >& sourceRects,
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const core::array<s32>& indices, s32 kerningWidth = 0,
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const core::rect<s32>* clipRect=0,
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SColor color=SColor(255,255,255,255),
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bool useAlphaChannelOfTexture=false) _IRR_OVERRIDE_;
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//! draws a set of 2d images, using a color and the alpha channel of the texture if desired.
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virtual void draw2DImageBatch(const video::ITexture* texture,
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const core::array<core::position2d<s32> >& positions,
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const core::array<core::rect<s32> >& sourceRects,
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const core::rect<s32>* clipRect=0,
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SColor color=SColor(255,255,255,255),
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bool useAlphaChannelOfTexture=false) _IRR_OVERRIDE_;
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//! draw an 2d rectangle
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virtual void draw2DRectangle(SColor color, const core::rect<s32>& pos,
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const core::rect<s32>* clip = 0) _IRR_OVERRIDE_;
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//!Draws an 2d rectangle with a gradient.
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virtual void draw2DRectangle(const core::rect<s32>& pos,
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SColor colorLeftUp, SColor colorRightUp, SColor colorLeftDown, SColor colorRightDown,
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const core::rect<s32>* clip = 0) _IRR_OVERRIDE_;
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//! Draws a 2d line.
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virtual void draw2DLine(const core::position2d<s32>& start,
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const core::position2d<s32>& end,
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SColor color=SColor(255,255,255,255)) _IRR_OVERRIDE_;
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//! Draws a single pixel
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virtual void drawPixel(u32 x, u32 y, const SColor & color) _IRR_OVERRIDE_;
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//! Draws a 3d line.
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virtual void draw3DLine(const core::vector3df& start,
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const core::vector3df& end,
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SColor color = SColor(255,255,255,255)) _IRR_OVERRIDE_;
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//! Returns the name of the video driver.
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virtual const wchar_t* getName() const _IRR_OVERRIDE_;
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//! deletes all dynamic lights there are
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virtual void deleteAllDynamicLights() _IRR_OVERRIDE_;
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//! adds a dynamic light
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virtual s32 addDynamicLight(const SLight& light) _IRR_OVERRIDE_;
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//! Turns a dynamic light on or off
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//! \param lightIndex: the index returned by addDynamicLight
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//! \param turnOn: true to turn the light on, false to turn it off
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virtual void turnLightOn(s32 lightIndex, bool turnOn) _IRR_OVERRIDE_;
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//! returns the maximal amount of dynamic lights the device can handle
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virtual u32 getMaximalDynamicLightAmount() const _IRR_OVERRIDE_;
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//! Sets the dynamic ambient light color.
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virtual void setAmbientLight(const SColorf& color) _IRR_OVERRIDE_;
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//! Draws a shadow volume into the stencil buffer.
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virtual void drawStencilShadowVolume(const core::array<core::vector3df>& triangles, bool zfail, u32 debugDataVisible=0) _IRR_OVERRIDE_;
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//! Fills the stencil shadow with color.
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virtual void drawStencilShadow(bool clearStencilBuffer=false,
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video::SColor leftUpEdge = video::SColor(0,0,0,0),
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video::SColor rightUpEdge = video::SColor(0,0,0,0),
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video::SColor leftDownEdge = video::SColor(0,0,0,0),
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video::SColor rightDownEdge = video::SColor(0,0,0,0)) _IRR_OVERRIDE_;
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//! sets a viewport
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virtual void setViewPort(const core::rect<s32>& area) _IRR_OVERRIDE_;
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//! Sets the fog mode.
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virtual void setFog(SColor color, E_FOG_TYPE fogType, f32 start,
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f32 end, f32 density, bool pixelFog, bool rangeFog) _IRR_OVERRIDE_;
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//! Only used internally by the engine
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virtual void OnResize(const core::dimension2d<u32>& size) _IRR_OVERRIDE_;
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//! Returns type of video driver
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virtual E_DRIVER_TYPE getDriverType() const _IRR_OVERRIDE_;
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//! get color format of the current color buffer
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virtual ECOLOR_FORMAT getColorFormat() const _IRR_OVERRIDE_;
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//! Returns the transformation set by setTransform
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virtual const core::matrix4& getTransform(E_TRANSFORMATION_STATE state) const _IRR_OVERRIDE_;
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//! Can be called by an IMaterialRenderer to make its work easier.
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virtual void setBasicRenderStates(const SMaterial& material, const SMaterial& lastmaterial,
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bool resetAllRenderstates) _IRR_OVERRIDE_;
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//! Compare in SMaterial doesn't check texture parameters, so we should call this on each OnRender call.
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virtual void setTextureRenderStates(const SMaterial& material, bool resetAllRenderstates);
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//! Get a vertex shader constant index.
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virtual s32 getVertexShaderConstantID(const c8* name) _IRR_OVERRIDE_;
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//! Get a pixel shader constant index.
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virtual s32 getPixelShaderConstantID(const c8* name) _IRR_OVERRIDE_;
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//! Sets a constant for the vertex shader based on an index.
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virtual bool setVertexShaderConstant(s32 index, const f32* floats, int count) _IRR_OVERRIDE_;
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//! Int interface for the above.
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virtual bool setVertexShaderConstant(s32 index, const s32* ints, int count) _IRR_OVERRIDE_;
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//! Uint interface for the above.
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virtual bool setVertexShaderConstant(s32 index, const u32* ints, int count) _IRR_OVERRIDE_;
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//! Sets a constant for the pixel shader based on an index.
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virtual bool setPixelShaderConstant(s32 index, const f32* floats, int count) _IRR_OVERRIDE_;
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//! Int interface for the above.
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virtual bool setPixelShaderConstant(s32 index, const s32* ints, int count) _IRR_OVERRIDE_;
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//! Uint interface for the above.
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virtual bool setPixelShaderConstant(s32 index, const u32* ints, int count) _IRR_OVERRIDE_;
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//! Sets a vertex shader constant.
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virtual void setVertexShaderConstant(const f32* data, s32 startRegister, s32 constantAmount=1) _IRR_OVERRIDE_;
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//! Sets a pixel shader constant.
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virtual void setPixelShaderConstant(const f32* data, s32 startRegister, s32 constantAmount=1) _IRR_OVERRIDE_;
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//! Adds a new material renderer to the VideoDriver
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virtual s32 addShaderMaterial(const c8* vertexShaderProgram, const c8* pixelShaderProgram,
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IShaderConstantSetCallBack* callback, E_MATERIAL_TYPE baseMaterial, s32 userData) _IRR_OVERRIDE_;
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//! Adds a new material renderer to the VideoDriver
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virtual s32 addHighLevelShaderMaterial(const c8* vertexShaderProgram, const c8* vertexShaderEntryPointName,
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E_VERTEX_SHADER_TYPE vsCompileTarget, const c8* pixelShaderProgram, const c8* pixelShaderEntryPointName,
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E_PIXEL_SHADER_TYPE psCompileTarget, const c8* geometryShaderProgram, const c8* geometryShaderEntryPointName,
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E_GEOMETRY_SHADER_TYPE gsCompileTarget, scene::E_PRIMITIVE_TYPE inType, scene::E_PRIMITIVE_TYPE outType,
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u32 verticesOut, IShaderConstantSetCallBack* callback, E_MATERIAL_TYPE baseMaterial,
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s32 userData) _IRR_OVERRIDE_;
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//! Returns pointer to the IGPUProgrammingServices interface.
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virtual IGPUProgrammingServices* getGPUProgrammingServices() _IRR_OVERRIDE_;
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//! Returns a pointer to the IVideoDriver interface.
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virtual IVideoDriver* getVideoDriver() _IRR_OVERRIDE_;
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//! Returns the maximum amount of primitives
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virtual u32 getMaximalPrimitiveCount() const _IRR_OVERRIDE_;
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virtual ITexture* addRenderTargetTexture(const core::dimension2d<u32>& size,
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const io::path& name, const ECOLOR_FORMAT format = ECF_UNKNOWN) _IRR_OVERRIDE_;
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//! Creates a render target texture for a cubemap
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ITexture* addRenderTargetTextureCubemap(const irr::u32 sideLen,
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const io::path& name, const ECOLOR_FORMAT format) _IRR_OVERRIDE_;
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virtual bool setRenderTargetEx(IRenderTarget* target, u16 clearFlag, SColor clearColor = SColor(255, 0, 0, 0),
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f32 clearDepth = 1.f, u8 clearStencil = 0) _IRR_OVERRIDE_;
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virtual void clearBuffers(u16 flag, SColor color = SColor(255, 0, 0, 0), f32 depth = 1.f, u8 stencil = 0) _IRR_OVERRIDE_;
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//! Returns an image created from the last rendered frame.
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virtual IImage* createScreenShot(video::ECOLOR_FORMAT format=video::ECF_UNKNOWN, video::E_RENDER_TARGET target=video::ERT_FRAME_BUFFER) _IRR_OVERRIDE_;
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//! checks if an OpenGL error has happened and prints it (+ some internal code which is usually the line number)
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bool testGLError(int code=0);
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//! Set/unset a clipping plane.
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virtual bool setClipPlane(u32 index, const core::plane3df& plane, bool enable=false) _IRR_OVERRIDE_;
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//! Enable/disable a clipping plane.
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virtual void enableClipPlane(u32 index, bool enable) _IRR_OVERRIDE_;
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//! Returns the graphics card vendor name.
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virtual core::stringc getVendorInfo() _IRR_OVERRIDE_
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{
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return VendorName;
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}
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//! Get the maximal texture size for this driver
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virtual core::dimension2du getMaxTextureSize() const _IRR_OVERRIDE_;
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virtual void removeTexture(ITexture* texture) _IRR_OVERRIDE_;
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//! Check if the driver supports creating textures with the given color format
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virtual bool queryTextureFormat(ECOLOR_FORMAT format) const _IRR_OVERRIDE_;
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//! Used by some SceneNodes to check if a material should be rendered in the transparent render pass
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virtual bool needsTransparentRenderPass(const irr::video::SMaterial& material) const _IRR_OVERRIDE_;
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//! Convert E_BLEND_FACTOR to OpenGL equivalent
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GLenum getGLBlend(E_BLEND_FACTOR factor) const;
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//! Get ZBuffer bits.
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GLenum getZBufferBits() const;
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bool getColorFormatParameters(ECOLOR_FORMAT format, GLint& internalFormat, GLenum& pixelFormat,
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GLenum& pixelType, void(**converter)(const void*, s32, void*)) const;
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COGLES1CacheHandler* getCacheHandler() const;
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private:
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void uploadClipPlane(u32 index);
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//! inits the opengl-es driver
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bool genericDriverInit(const core::dimension2d<u32>& screenSize, bool stencilBuffer);
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virtual ITexture* createDeviceDependentTexture(const io::path& name, IImage* image) _IRR_OVERRIDE_;
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virtual ITexture* createDeviceDependentTextureCubemap(const io::path& name, const core::array<IImage*>& image) _IRR_OVERRIDE_;
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//! creates a transposed matrix in supplied GLfloat array to pass to OGLES1
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inline void getGLMatrix(GLfloat gl_matrix[16], const core::matrix4& m);
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inline void getGLTextureMatrix(GLfloat gl_matrix[16], const core::matrix4& m);
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//! Set GL pipeline to desired texture wrap modes of the material
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void setWrapMode(const SMaterial& material);
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//! Get OpenGL wrap enum from Irrlicht enum
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GLint getTextureWrapMode(u8 clamp) const;
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//! sets the needed renderstates
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void setRenderStates3DMode();
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//! sets the needed renderstates
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void setRenderStates2DMode(bool alpha, bool texture, bool alphaChannel);
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void createMaterialRenderers();
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//! Assign a hardware light to the specified requested light, if any
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//! free hardware lights exist.
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//! \param[in] lightIndex: the index of the requesting light
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void assignHardwareLight(u32 lightIndex);
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//! Same as `CacheHandler->setViewport`, but also sets `ViewPort`
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virtual void setViewPortRaw(u32 width, u32 height);
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COGLES1CacheHandler* CacheHandler;
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core::stringw Name;
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core::matrix4 Matrices[ETS_COUNT];
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core::array<u8> ColorBuffer;
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//! enumeration for rendering modes such as 2d and 3d for minimizing the switching of renderStates.
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enum E_RENDER_MODE
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{
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ERM_NONE = 0, // no render state has been set yet.
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ERM_2D, // 2d drawing rendermode
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ERM_3D // 3d rendering mode
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};
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E_RENDER_MODE CurrentRenderMode;
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//! bool to make all renderstates reset if set to true.
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bool ResetRenderStates;
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bool Transformation3DChanged;
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u8 AntiAlias;
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SMaterial Material, LastMaterial;
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core::array<core::plane3df> UserClipPlane;
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std::vector<bool> UserClipPlaneEnabled;
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core::stringc VendorName;
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core::matrix4 TextureFlipMatrix;
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//! Color buffer format
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ECOLOR_FORMAT ColorFormat;
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SIrrlichtCreationParameters Params;
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//! All the lights that have been requested; a hardware limited
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//! number of them will be used at once.
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struct RequestedLight
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{
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RequestedLight(SLight const & lightData)
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: LightData(lightData), HardwareLightIndex(-1), DesireToBeOn(true) { }
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SLight LightData;
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s32 HardwareLightIndex; // GL_LIGHT0 - GL_LIGHT7
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bool DesireToBeOn;
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};
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core::array<RequestedLight> RequestedLights;
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IContextManager* ContextManager;
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};
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} // end namespace video
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} // end namespace irr
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#endif // _IRR_COMPILE_WITH_OGLES1_
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#endif
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