irrlicht/source/Irrlicht/COGLES2Driver.h
cutealien ee3579015b Merging r6250 through r6254 from trunk to ogl-es branch
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6255 dfc29bdd-3216-0410-991c-e03cc46cb475
2021-08-27 19:14:39 +00:00

449 lines
17 KiB
C++

// 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
#ifndef __C_OGLES2_DRIVER_H_INCLUDED__
#define __C_OGLES2_DRIVER_H_INCLUDED__
#include "IrrCompileConfig.h"
#include "SIrrCreationParameters.h"
#ifdef _IRR_COMPILE_WITH_OGLES2_
#include "CNullDriver.h"
#include "IMaterialRendererServices.h"
#include "EDriverFeatures.h"
#include "fast_atof.h"
#include "COGLES2ExtensionHandler.h"
#include "IContextManager.h"
#if defined(_IRR_WINDOWS_API_)
// include windows headers for HWND
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#endif
#ifdef _MSC_VER
#pragma comment(lib, "libGLESv2.lib")
#endif
namespace irr
{
namespace video
{
class COGLES2FixedPipelineRenderer;
class COGLES2NormalMapRenderer;
class COGLES2ParallaxMapRenderer;
class COGLES2Renderer2D;
class COGLES2Driver : public CNullDriver, public IMaterialRendererServices, public COGLES2ExtensionHandler
{
friend class COpenGLCoreTexture<COGLES2Driver>;
friend IVideoDriver* createOGLES2Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
protected:
//! constructor (use createOGLES2Driver instead)
COGLES2Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
public:
//! destructor
virtual ~COGLES2Driver();
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) IRR_OVERRIDE;
virtual bool endScene() IRR_OVERRIDE;
//! sets transformation
virtual void setTransform(E_TRANSFORMATION_STATE state, const core::matrix4& mat) IRR_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
virtual bool updateHardwareBuffer(SHWBufferLink *HWBuffer) IRR_OVERRIDE;
//! Create hardware buffer from mesh
virtual SHWBufferLink *createHardwareBuffer(const scene::IMeshBuffer* mb) IRR_OVERRIDE;
//! Delete hardware buffer (only some drivers can)
virtual void deleteHardwareBuffer(SHWBufferLink *HWBuffer) IRR_OVERRIDE;
//! Draw hardware buffer
virtual void drawHardwareBuffer(SHWBufferLink *HWBuffer) IRR_OVERRIDE;
virtual IRenderTarget* addRenderTarget() IRR_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) IRR_OVERRIDE;
//! queries the features of the driver, returns true if feature is available
virtual bool queryFeature(E_VIDEO_DRIVER_FEATURE feature) const IRR_OVERRIDE
{
return FeatureEnabled[feature] && COGLES2ExtensionHandler::queryFeature(feature);
}
//! Sets a material.
virtual void setMaterial(const SMaterial& material) IRR_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) IRR_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) IRR_OVERRIDE;
// internally used
virtual void draw2DImage(const video::ITexture* texture, u32 layer, bool flip);
//! draws a set of 2d images
virtual void draw2DImageBatch(const video::ITexture* texture,
const core::position2d<s32>& pos,
const core::array<core::rect<s32> >& sourceRects,
const core::array<s32>& indices, s32 kerningWidth = 0,
const core::rect<s32>* clipRect = 0,
SColor color = SColor(255, 255, 255, 255),
bool useAlphaChannelOfTexture = false) IRR_OVERRIDE;
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) IRR_OVERRIDE;
//! draw an 2d rectangle
virtual void draw2DRectangle(SColor color, const core::rect<s32>& pos,
const core::rect<s32>* clip = 0) IRR_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) IRR_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)) IRR_OVERRIDE;
//! Draws a single pixel
virtual void drawPixel(u32 x, u32 y, const SColor & color) IRR_OVERRIDE;
//! Draws a 3d line.
virtual void draw3DLine(const core::vector3df& start,
const core::vector3df& end,
SColor color = SColor(255, 255, 255, 255)) IRR_OVERRIDE;
//! Draws a pixel
// virtual void drawPixel(u32 x, u32 y, const SColor & color);
//! Returns the name of the video driver.
virtual const wchar_t* getName() const IRR_OVERRIDE;
//! deletes all dynamic lights there are
virtual void deleteAllDynamicLights() IRR_OVERRIDE;
//! adds a dynamic light
virtual s32 addDynamicLight(const SLight& light) IRR_OVERRIDE;
//! Turns a dynamic light on or off
/** \param lightIndex: the index returned by addDynamicLight
\param turnOn: true to turn the light on, false to turn it off */
virtual void turnLightOn(s32 lightIndex, bool turnOn) IRR_OVERRIDE;
//! returns the maximal amount of dynamic lights the device can handle
virtual u32 getMaximalDynamicLightAmount() const IRR_OVERRIDE;
//! Returns the maximum texture size supported.
virtual core::dimension2du getMaxTextureSize() const IRR_OVERRIDE;
//! Draws a shadow volume into the stencil buffer.
virtual void drawStencilShadowVolume(const core::array<core::vector3df>& triangles, bool zfail, u32 debugDataVisible=0) IRR_OVERRIDE;
//! Fills the stencil shadow with color.
virtual void drawStencilShadow(bool clearStencilBuffer=false,
video::SColor leftUpEdge = video::SColor(0,0,0,0),
video::SColor rightUpEdge = video::SColor(0,0,0,0),
video::SColor leftDownEdge = video::SColor(0,0,0,0),
video::SColor rightDownEdge = video::SColor(0,0,0,0)) IRR_OVERRIDE;
//! sets a viewport
virtual void setViewPort(const core::rect<s32>& area) IRR_OVERRIDE;
//! Only used internally by the engine
virtual void OnResize(const core::dimension2d<u32>& size) IRR_OVERRIDE;
//! Returns type of video driver
virtual E_DRIVER_TYPE getDriverType() const IRR_OVERRIDE;
//! get color format of the current color buffer
virtual ECOLOR_FORMAT getColorFormat() const IRR_OVERRIDE;
//! Returns the transformation set by setTransform
virtual const core::matrix4& getTransform(E_TRANSFORMATION_STATE state) const IRR_OVERRIDE;
//! Can be called by an IMaterialRenderer to make its work easier.
virtual void setBasicRenderStates(const SMaterial& material, const SMaterial& lastmaterial, bool resetAllRenderstates) IRR_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.
virtual s32 getVertexShaderConstantID(const c8* name) IRR_OVERRIDE;
//! Get a pixel shader constant index.
virtual s32 getPixelShaderConstantID(const c8* name) IRR_OVERRIDE;
//! Sets a vertex shader constant.
virtual void setVertexShaderConstant(const f32* data, s32 startRegister, s32 constantAmount = 1) IRR_OVERRIDE;
//! Sets a pixel shader constant.
virtual void setPixelShaderConstant(const f32* data, s32 startRegister, s32 constantAmount = 1) IRR_OVERRIDE;
//! Sets a constant for the vertex shader based on an index.
virtual bool setVertexShaderConstant(s32 index, const f32* floats, int count) IRR_OVERRIDE;
//! Int interface for the above.
virtual bool setVertexShaderConstant(s32 index, const s32* ints, int count) IRR_OVERRIDE;
//! Uint interface for the above.
virtual bool setVertexShaderConstant(s32 index, const u32* ints, int count) IRR_OVERRIDE;
//! Sets a constant for the pixel shader based on an index.
virtual bool setPixelShaderConstant(s32 index, const f32* floats, int count) IRR_OVERRIDE;
//! Int interface for the above.
virtual bool setPixelShaderConstant(s32 index, const s32* ints, int count) IRR_OVERRIDE;
//! Uint interface for the above.
virtual bool setPixelShaderConstant(s32 index, const u32* ints, int count) IRR_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) IRR_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) IRR_OVERRIDE;
//! Returns pointer to the IGPUProgrammingServices interface.
virtual IGPUProgrammingServices* getGPUProgrammingServices() IRR_OVERRIDE;
//! Returns a pointer to the IVideoDriver interface.
virtual IVideoDriver* getVideoDriver() IRR_OVERRIDE;
//! Returns the maximum amount of primitives
virtual u32 getMaximalPrimitiveCount() const IRR_OVERRIDE;
virtual ITexture* addRenderTargetTexture(const core::dimension2d<u32>& size,
const io::path& name, const ECOLOR_FORMAT format = ECF_UNKNOWN) IRR_OVERRIDE;
//! Creates a render target texture for a cubemap
ITexture* addRenderTargetTextureCubemap(const irr::u32 sideLen,
const io::path& name, const ECOLOR_FORMAT format) IRR_OVERRIDE;
virtual bool setRenderTargetEx(IRenderTarget* target, u16 clearFlag, SColor clearColor = SColor(255, 0, 0, 0),
f32 clearDepth = 1.f, u8 clearStencil = 0) IRR_OVERRIDE;
virtual void clearBuffers(u16 flag, SColor color = SColor(255, 0, 0, 0), f32 depth = 1.f, u8 stencil = 0) IRR_OVERRIDE;
//! Returns an image created from the last rendered frame.
virtual IImage* createScreenShot(video::ECOLOR_FORMAT format=video::ECF_UNKNOWN, video::E_RENDER_TARGET target=video::ERT_FRAME_BUFFER) IRR_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.
virtual bool setClipPlane(u32 index, const core::plane3df& plane, bool enable = false) IRR_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.
virtual void enableClipPlane(u32 index, bool enable) IRR_OVERRIDE;
//! Returns the graphics card vendor name.
virtual core::stringc getVendorInfo() IRR_OVERRIDE
{
return VendorName;
};
virtual void removeTexture(ITexture* texture) IRR_OVERRIDE;
//! Check if the driver supports creating textures with the given color format
virtual bool queryTextureFormat(ECOLOR_FORMAT format) const IRR_OVERRIDE;
//! Used by some SceneNodes to check if a material should be rendered in the transparent render pass
virtual bool needsTransparentRenderPass(const irr::video::SMaterial& material) const IRR_OVERRIDE;
//! Convert E_BLEND_FACTOR to OpenGL equivalent
GLenum getGLBlend(E_BLEND_FACTOR factor) const;
//! Get ZBuffer bits.
virtual GLenum getZBufferBits() 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;
COGLES2CacheHandler* getCacheHandler() const;
protected:
//! inits the opengl-es driver
virtual bool genericDriverInit(const core::dimension2d<u32>& screenSize, bool stencilBuffer);
void chooseMaterial2D();
virtual ITexture* createDeviceDependentTexture(const io::path& name, IImage* image) IRR_OVERRIDE;
virtual ITexture* createDeviceDependentTextureCubemap(const io::path& name, const core::array<IImage*>& image) IRR_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);
COGLES2CacheHandler* 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:
COGLES2Renderer2D* MaterialRenderer2DActive;
COGLES2Renderer2D* MaterialRenderer2DTexture;
COGLES2Renderer2D* 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;
//! All the lights that have been requested; a hardware limited
//! number of them will be used at once.
struct RequestedLight
{
RequestedLight(SLight const & lightData)
: LightData(lightData), DesireToBeOn(true) { }
SLight LightData;
bool DesireToBeOn;
};
core::array<RequestedLight> RequestedLights;
IContextManager* ContextManager;
};
} // end namespace video
} // end namespace irr
#endif // _IRR_COMPILE_WITH_OGLES2_
#endif // __C_OGLES2_DRIVER_H_INCLUDED__