541 lines
18 KiB
C++
541 lines
18 KiB
C++
// Copyright (C) 2013 Patryk Nadrowski
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// Heavily based on the OpenGL driver implemented by Nikolaus Gebhardt
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// OpenGL ES driver implemented by Christian Stehno and first OpenGL ES 2.0
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// driver implemented by Amundis.
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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_OGLES2_DRIVER_H_INCLUDED__
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#define __C_OGLES2_DRIVER_H_INCLUDED__
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#include "IrrCompileConfig.h"
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#if defined(_IRR_COMPILE_WITH_OSX_DEVICE_)
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#include "MacOSX/CIrrDeviceMacOSX.h"
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#elif defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
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#include "iOS/CIrrDeviceiOS.h"
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#endif
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#include "SIrrCreationParameters.h"
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#ifdef _IRR_COMPILE_WITH_OGLES2_
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#if defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
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#include <OpenGLES/ES2/gl.h>
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#include <OpenGLES/ES2/glext.h>
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#elif defined(_IRR_COMPILE_WITH_ANDROID_DEVICE_)
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#include <GLES2/gl2.h>
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#include "android_native_app_glue.h"
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#endif
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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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#ifdef _MSC_VER
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#pragma comment(lib, "libGLESv2.lib")
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#endif
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#include "COGLES2ExtensionHandler.h"
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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 COGLES2CallBridge;
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class COGLES2Texture;
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class COGLES2FixedPipelineRenderer;
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class COGLES2Renderer2D;
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class COGLES2NormalMapRenderer;
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class COGLES2ParallaxMapRenderer;
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class ContextEGL;
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class COGLES2Driver : public CNullDriver, public IMaterialRendererServices, public COGLES2ExtensionHandler
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{
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friend class COGLES2CallBridge;
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friend class COGLES2Texture;
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public:
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#if defined(_IRR_COMPILE_WITH_X11_DEVICE_) || defined(_IRR_COMPILE_WITH_SDL_DEVICE_) || defined(_IRR_WINDOWS_API_) || defined(_IRR_COMPILE_WITH_CONSOLE_DEVICE_)
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COGLES2Driver(const SIrrlichtCreationParameters& params,
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const SExposedVideoData& data,
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io::IFileSystem* io);
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#endif
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#ifdef _IRR_COMPILE_WITH_OSX_DEVICE_
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COGLES2Driver(const SIrrlichtCreationParameters& params,
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io::IFileSystem* io, CIrrDeviceMacOSX *device);
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#endif
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#if defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
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COGLES2Driver(const SIrrlichtCreationParameters& params,
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const SExposedVideoData& data,
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io::IFileSystem* io, CIrrDeviceIPhone* device);
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#endif
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//! destructor
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virtual ~COGLES2Driver();
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//! clears the zbuffer
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virtual bool beginScene(bool backBuffer=true, bool zBuffer=true,
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SColor color=SColor(255, 0, 0, 0),
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const SExposedVideoData& videoData=SExposedVideoData(),
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core::rect<s32>* sourceRect=0);
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//! presents the rendered scene on the screen, returns false if failed
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virtual bool endScene();
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//! sets transformation
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virtual void setTransform(E_TRANSFORMATION_STATE state, const core::matrix4& mat);
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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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u32 vbo_verticesID; //tmp
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u32 vbo_indicesID; //tmp
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u32 vbo_verticesSize; //tmp
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u32 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);
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//! Create hardware buffer from mesh
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virtual SHWBufferLink *createHardwareBuffer(const scene::IMeshBuffer* mb);
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//! Delete hardware buffer (only some drivers can)
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virtual void deleteHardwareBuffer(SHWBufferLink *HWBuffer);
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//! Draw hardware buffer
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virtual void drawHardwareBuffer(SHWBufferLink *HWBuffer);
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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);
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void drawVertexPrimitiveList2d3d(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,
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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
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{
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return FeatureEnabled[feature] && COGLES2ExtensionHandler::queryFeature(feature);
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}
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//! Sets a material.
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virtual void setMaterial(const SMaterial& material);
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//! draws an 2d image, using a color (if color is other then Color(255,255,255,255)) and the alpha channel of the texture if wanted.
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virtual void draw2DImage(const video::ITexture* texture,
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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);
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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);
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//! Draws a part of the texture into the rectangle.
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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);
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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,
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SColor color,
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bool useAlphaChannelOfTexture);
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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);
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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);
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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));
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//! Draws a single pixel
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virtual void drawPixel(u32 x, u32 y, const SColor & color);
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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));
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//! Draws a pixel
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// virtual void drawPixel(u32 x, u32 y, const SColor & color);
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//! Returns the name of the video driver.
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virtual const wchar_t* getName() const;
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//! deletes all dynamic lights there are
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virtual void deleteAllDynamicLights();
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//! adds a dynamic light
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virtual s32 addDynamicLight(const SLight& light);
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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);
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//! returns the maximal amount of dynamic lights the device can handle
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virtual u32 getMaximalDynamicLightAmount() const;
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//! Sets the dynamic ambient light color.
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virtual void setAmbientLight(const SColorf& color);
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//! return the dynamic ambient light color.
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const SColorf& getAmbientLight() const;
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//! Returns the maximum texture size supported.
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virtual core::dimension2du getMaxTextureSize() const;
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//! Draws a shadow volume into the stencil buffer.
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virtual void drawStencilShadowVolume(const core::vector3df* triangles, s32 count, bool zfail);
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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));
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//! sets a viewport
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virtual void setViewPort(const core::rect<s32>& area);
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//! Only used internally by the engine
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virtual void OnResize(const core::dimension2d<u32>& size);
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//! Returns type of video driver
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virtual E_DRIVER_TYPE getDriverType() const;
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//! get color format of the current color buffer
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virtual ECOLOR_FORMAT getColorFormat() const;
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//! Returns the transformation set by setTransform
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virtual const core::matrix4& getTransform(E_TRANSFORMATION_STATE state) const;
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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, bool resetAllRenderstates);
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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);
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//! Get a pixel shader constant index.
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virtual s32 getPixelShaderConstantID(const c8* name);
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//! Sets a vertex shader constant.
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virtual void setVertexShaderConstant(const f32* data, s32 startRegister, s32 constantAmount = 1);
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//! Sets a pixel shader constant.
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virtual void setPixelShaderConstant(const f32* data, s32 startRegister, s32 constantAmount = 1);
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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);
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//! Int interface for the above.
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virtual bool setVertexShaderConstant(s32 index, const s32* ints, int count);
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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);
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//! Int interface for the above.
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virtual bool setPixelShaderConstant(s32 index, const s32* ints, int count);
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//! sets the current Texture
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bool setActiveTexture(u32 stage, const video::ITexture* texture);
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//! check if active texture is not equal null.
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bool isActiveTexture(u32 stage);
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//! disables all textures beginning with fromStage.
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bool disableTextures(u32 fromStage = 0);
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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);
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//! Adds a new material renderer to the VideoDriver
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virtual s32 addHighLevelShaderMaterial(
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const c8* vertexShaderProgram,
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const c8* vertexShaderEntryPointName = 0,
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E_VERTEX_SHADER_TYPE vsCompileTarget = EVST_VS_1_1,
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const c8* pixelShaderProgram = 0,
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const c8* pixelShaderEntryPointName = 0,
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E_PIXEL_SHADER_TYPE psCompileTarget = EPST_PS_1_1,
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const c8* geometryShaderProgram = 0,
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const c8* geometryShaderEntryPointName = "main",
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E_GEOMETRY_SHADER_TYPE gsCompileTarget = EGST_GS_4_0,
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scene::E_PRIMITIVE_TYPE inType = scene::EPT_TRIANGLES,
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scene::E_PRIMITIVE_TYPE outType = scene::EPT_TRIANGLE_STRIP,
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u32 verticesOut = 0,
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IShaderConstantSetCallBack* callback = 0,
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E_MATERIAL_TYPE baseMaterial = video::EMT_SOLID,
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s32 userData=0,
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E_GPU_SHADING_LANGUAGE shadingLang = EGSL_DEFAULT);
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//! Returns pointer to the IGPUProgrammingServices interface.
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virtual IGPUProgrammingServices* getGPUProgrammingServices();
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//! Returns a pointer to the IVideoDriver interface.
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virtual IVideoDriver* getVideoDriver();
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//! Returns the maximum amount of primitives
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virtual u32 getMaximalPrimitiveCount() const;
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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,
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const bool useStencil = false);
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virtual bool setRenderTarget(video::ITexture* texture, bool clearBackBuffer,
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bool clearZBuffer, SColor color);
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//! set or reset special render targets
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// virtual bool setRenderTarget(video::E_RENDER_TARGET target, bool clearTarget,
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// bool clearZBuffer, SColor color);
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//! Sets multiple render targets
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// virtual bool setRenderTarget(const core::array<video::IRenderTarget>& texture,
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// bool clearBackBuffer=true, bool clearZBuffer=true, SColor color=SColor(0,0,0,0));
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//! Clears the ZBuffer.
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virtual void clearZBuffer();
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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);
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//! checks if an OpenGL error has happend and prints it
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bool testGLError();
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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);
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//! returns the current amount of user clip planes set.
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u32 getClipPlaneCount() const;
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//! returns the 0 indexed Plane
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const core::plane3df& getClipPlane(u32 index) const;
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//! Enable/disable a clipping plane.
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virtual void enableClipPlane(u32 index, bool enable);
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//! Returns the graphics card vendor name.
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virtual core::stringc getVendorInfo()
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{
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return vendorName;
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};
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ITexture* createDepthTexture(ITexture* texture, bool shared = true);
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void removeDepthTexture(ITexture* texture);
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void deleteFramebuffers(s32 n, const u32 *framebuffers);
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void deleteRenderbuffers(s32 n, const u32 *renderbuffers);
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// returns the current size of the screen or rendertarget
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virtual const core::dimension2d<u32>& getCurrentRenderTargetSize() const;
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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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//! Get current material.
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const SMaterial& getCurrentMaterial() const;
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//! Get bridge calls.
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COGLES2CallBridge* getBridgeCalls() const;
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private:
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// Bridge calls.
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COGLES2CallBridge* BridgeCalls;
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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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//! returns a device dependent texture from a software surface (IImage)
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virtual video::ITexture* createDeviceDependentTexture(IImage* surface, const io::path& name, void* mipmapData);
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//! creates a transposed matrix in supplied GLfloat array to pass to OGLES1
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inline void createGLMatrix(float gl_matrix[16], const core::matrix4& m);
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inline void createGLTextureMatrix(float gl_matrix[16], const core::matrix4& m);
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//! Map Irrlicht wrap mode to OpenGL 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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core::stringw Name;
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core::matrix4 Matrices[ETS_COUNT];
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//! enumeration for rendering modes such as 2d and 3d for minizing 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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COGLES2Texture* RenderTargetTexture;
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const ITexture* CurrentTexture[MATERIAL_MAX_TEXTURES];
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core::array<ITexture*> DepthTextures;
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struct SUserClipPlane
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{
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core::plane3df Plane;
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bool Enabled;
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};
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core::array<SUserClipPlane> UserClipPlane;
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core::dimension2d<u32> CurrentRendertargetSize;
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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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//! 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), DesireToBeOn(true) { }
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SLight LightData;
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bool DesireToBeOn;
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};
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core::array<RequestedLight> RequestedLights;
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SColorf AmbientLight;
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COGLES2Renderer2D* MaterialRenderer2D;
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#if defined(_IRR_COMPILE_WITH_EGL_)
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ContextEGL* EglContext;
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#endif
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#if defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
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CIrrDeviceIPhone* Device;
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GLuint ViewFramebuffer;
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GLuint ViewRenderbuffer;
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GLuint ViewDepthRenderbuffer;
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#endif
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SIrrlichtCreationParameters Params;
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};
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//! This bridge between Irlicht pseudo OpenGL calls
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//! and true OpenGL calls.
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class COGLES2CallBridge
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{
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public:
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COGLES2CallBridge(COGLES2Driver* driver);
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// Blending calls.
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void setBlendFunc(GLenum source, GLenum destination);
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void setBlend(bool enable);
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// Cull face calls.
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void setCullFaceFunc(GLenum mode);
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void setCullFace(bool enable);
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// Depth calls.
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void setDepthFunc(GLenum mode);
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|
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void setDepthMask(bool enable);
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void setDepthTest(bool enable);
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// Program calls.
|
|
|
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void setProgram(GLuint program);
|
|
|
|
// Texture calls.
|
|
|
|
void setActiveTexture(GLenum texture);
|
|
|
|
void setTexture(u32 stage);
|
|
|
|
// Viewport calls.
|
|
|
|
void setViewport(const core::rect<s32>& viewport);
|
|
|
|
private:
|
|
COGLES2Driver* Driver;
|
|
|
|
GLenum BlendSource;
|
|
GLenum BlendDestination;
|
|
bool Blend;
|
|
|
|
GLenum CullFaceMode;
|
|
bool CullFace;
|
|
|
|
GLenum DepthFunc;
|
|
bool DepthMask;
|
|
bool DepthTest;
|
|
|
|
GLuint Program;
|
|
|
|
GLenum ActiveTexture;
|
|
|
|
const ITexture* Texture[MATERIAL_MAX_TEXTURES];
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|
|
|
core::rect<s32> Viewport;
|
|
};
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|
|
|
} // end namespace video
|
|
} // end namespace irr
|
|
|
|
#endif // _IRR_COMPILE_WITH_OPENGL_
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|
#endif
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