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irrlicht/source/Irrlicht/COGLES2Driver.cpp

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// Copyright (C) 2013 Patryk Nadrowski
// Heavily based on the OpenGL driver implemented by Nikolaus Gebhardt
// OpenGL ES driver implemented by Christian Stehno and first OpenGL ES 2.0
// driver implemented by Amundis.
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in Irrlicht.h
#include "COGLES2Driver.h"
// needed here also because of the create methods' parameters
#include "CNullDriver.h"
#ifdef _IRR_COMPILE_WITH_OGLES2_
#include "COGLES2Texture.h"
#include "COGLES2MaterialRenderer.h"
#include "COGLES2FixedPipelineRenderer.h"
#include "COGLES2NormalMapRenderer.h"
#include "COGLES2ParallaxMapRenderer.h"
#include "COGLES2Renderer2D.h"
#include "CImage.h"
#include "os.h"
#if defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
#include <OpenGLES/ES2/gl.h>
#include <OpenGLES/ES2/glext.h>
#else
#include <EGL/egl.h>
#include <GLES2/gl2.h>
#endif
namespace irr
{
namespace video
{
//! constructor and init code
COGLES2Driver::COGLES2Driver(const SIrrlichtCreationParameters& params,
const SExposedVideoData& data, io::IFileSystem* io
#if defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
, CIrrDeviceIPhone* device
#endif
)
: CNullDriver(io, params.WindowSize), COGLES2ExtensionHandler(),
CurrentRenderMode(ERM_NONE), ResetRenderStates(true),
Transformation3DChanged(true), AntiAlias(params.AntiAlias), BridgeCalls(0),
RenderTargetTexture(0), CurrentRendertargetSize(0, 0), ColorFormat(ECF_R8G8B8)
#ifdef EGL_VERSION_1_0
, EglDisplay(EGL_NO_DISPLAY)
#endif
#if defined(_IRR_COMPILE_WITH_WINDOWS_DEVICE_)
, HDc(0)
#elif defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
, ViewFramebuffer(0)
, ViewRenderbuffer(0)
, ViewDepthRenderbuffer(0)
#endif
{
#ifdef _DEBUG
setDebugName("COGLES2Driver");
#endif
ExposedData = data;
#if defined(_IRR_COMPILE_WITH_WINDOWS_DEVICE_)
EglWindow = (NativeWindowType)data.OpenGLWin32.HWnd;
HDc = GetDC((HWND)EglWindow);
EglDisplay = eglGetDisplay((NativeDisplayType)HDc);
#elif defined(_IRR_COMPILE_WITH_X11_DEVICE_)
EglWindow = (NativeWindowType)ExposedData.OpenGLLinux.X11Window;
EglDisplay = eglGetDisplay((NativeDisplayType)ExposedData.OpenGLLinux.X11Display);
#elif defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
Device = device;
#endif
#ifdef EGL_VERSION_1_0
if (EglDisplay == EGL_NO_DISPLAY)
{
os::Printer::log("Getting OpenGL-ES2 display.");
EglDisplay = eglGetDisplay((NativeDisplayType) EGL_DEFAULT_DISPLAY);
}
if (EglDisplay == EGL_NO_DISPLAY)
{
os::Printer::log("Could not get OpenGL-ES2 display.");
}
EGLint majorVersion, minorVersion;
if (!eglInitialize(EglDisplay, &majorVersion, &minorVersion))
{
os::Printer::log("Could not initialize OpenGL-ES2 display.");
}
else
{
char text[64];
sprintf(text, "EglDisplay initialized. Egl version %d.%d\n", majorVersion, minorVersion);
os::Printer::log(text);
}
EGLint attribs[] =
{
EGL_RED_SIZE, 5,
EGL_GREEN_SIZE, 5,
EGL_BLUE_SIZE, 5,
EGL_ALPHA_SIZE, params.WithAlphaChannel ? 1 : 0,
EGL_BUFFER_SIZE, params.Bits,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
//EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER,
EGL_DEPTH_SIZE, params.ZBufferBits,
EGL_STENCIL_SIZE, params.Stencilbuffer,
EGL_SAMPLE_BUFFERS, params.AntiAlias ? 1 : 0,
EGL_SAMPLES, params.AntiAlias,
#ifdef EGL_VERSION_1_3
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
#endif
EGL_NONE, 0
};
EGLint contextAttrib[] =
{
#ifdef EGL_VERSION_1_3
EGL_CONTEXT_CLIENT_VERSION, 2,
#endif
EGL_NONE, 0
};
EGLConfig config;
EGLint num_configs;
u32 steps=5;
while (!eglChooseConfig(EglDisplay, attribs, &config, 1, &num_configs) || !num_configs)
{
switch (steps)
{
case 5: // samples
if (attribs[19]>2)
{
--attribs[19];
}
else
{
attribs[17]=0;
attribs[19]=0;
--steps;
}
break;
case 4: // alpha
if (attribs[7])
{
attribs[7]=0;
if (params.AntiAlias)
{
attribs[17]=1;
attribs[19]=params.AntiAlias;
steps=5;
}
}
else
--steps;
break;
case 3: // stencil
if (attribs[15])
{
attribs[15]=0;
if (params.AntiAlias)
{
attribs[17]=1;
attribs[19]=params.AntiAlias;
steps=5;
}
}
else
--steps;
break;
case 2: // depth size
if (attribs[13]>16)
{
attribs[13]-=8;
}
else
--steps;
break;
case 1: // buffer size
if (attribs[9]>16)
{
attribs[9]-=8;
}
else
--steps;
break;
default:
os::Printer::log("Could not get config for OpenGL-ES2 display.");
return;
}
}
if (params.AntiAlias && !attribs[17])
os::Printer::log("No multisampling.");
if (params.WithAlphaChannel && !attribs[7])
os::Printer::log("No alpha.");
if (params.Stencilbuffer && !attribs[15])
os::Printer::log("No stencil buffer.");
if (params.ZBufferBits > attribs[13])
os::Printer::log("No full depth buffer.");
if (params.Bits > attribs[9])
os::Printer::log("No full color buffer.");
os::Printer::log(" Creating EglSurface with nativeWindow...");
EglSurface = eglCreateWindowSurface(EglDisplay, config, EglWindow, NULL);
if (EGL_NO_SURFACE == EglSurface)
{
os::Printer::log("FAILED\n");
EglSurface = eglCreateWindowSurface(EglDisplay, config, NULL, NULL);
os::Printer::log("Creating EglSurface without nativeWindows...");
}
else
os::Printer::log("SUCCESS\n");
if (EGL_NO_SURFACE == EglSurface)
{
os::Printer::log("FAILED\n");
os::Printer::log("Could not create surface for OpenGL-ES2 display.");
}
else
os::Printer::log("SUCCESS\n");
#ifdef EGL_VERSION_1_2
if (minorVersion>1)
eglBindAPI(EGL_OPENGL_ES_API);
#endif
os::Printer::log("Creating EglContext...");
EglContext = eglCreateContext(EglDisplay, config, EGL_NO_CONTEXT, contextAttrib);
if (testEGLError())
{
os::Printer::log("FAILED\n");
os::Printer::log("Could not create Context for OpenGL-ES2 display.");
}
eglMakeCurrent(EglDisplay, EglSurface, EglSurface, EglContext);
if (testEGLError())
{
os::Printer::log("Could not make Context current for OpenGL-ES2 display.");
}
genericDriverInit(params.WindowSize, params.Stencilbuffer);
// set vsync
if (params.Vsync)
eglSwapInterval(EglDisplay, 1);
#elif defined(GL_ES_VERSION_2_0)
glGenFramebuffers(1, &ViewFramebuffer);
glGenRenderbuffers(1, &ViewRenderbuffer);
glBindRenderbuffer(GL_RENDERBUFFER, ViewRenderbuffer);
#if defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
ExposedData.OGLESIPhone.AppDelegate = Device;
Device->displayInitialize(&ExposedData.OGLESIPhone.Context, &ExposedData.OGLESIPhone.View);
#endif
GLint backingWidth;
GLint backingHeight;
glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &backingWidth);
glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &backingHeight);
glGenRenderbuffers(1, &ViewDepthRenderbuffer);
glBindRenderbuffer(GL_RENDERBUFFER, ViewDepthRenderbuffer);
GLenum depthComponent = GL_DEPTH_COMPONENT16;
if(params.ZBufferBits >= 24)
depthComponent = GL_DEPTH_COMPONENT24_OES;
glRenderbufferStorage(GL_RENDERBUFFER, depthComponent, backingWidth, backingHeight);
glBindFramebuffer(GL_FRAMEBUFFER, ViewFramebuffer);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, ViewRenderbuffer);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, ViewDepthRenderbuffer);
core::dimension2d<u32> WindowSize(backingWidth, backingHeight);
CNullDriver::ScreenSize = WindowSize;
CNullDriver::ViewPort = core::rect<s32>(core::position2d<s32>(0,0), core::dimension2di(WindowSize));
genericDriverInit(WindowSize, params.Stencilbuffer);
#endif
}
//! destructor
COGLES2Driver::~COGLES2Driver()
{
deleteMaterialRenders();
deleteAllTextures();
if (BridgeCalls)
delete BridgeCalls;
#if defined(EGL_VERSION_1_0)
// HACK : the following is commented because destroying the context crashes under Linux (Thibault 04-feb-10)
/*eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroyContext(EglDisplay, EglContext);
eglDestroySurface(EglDisplay, EglSurface);*/
eglTerminate(EglDisplay);
#if defined(_IRR_COMPILE_WITH_WINDOWS_DEVICE_)
if (HDc)
ReleaseDC((HWND)EglWindow, HDc);
#endif
#elif defined(GL_ES_VERSION_2_0)
if (0 != ViewFramebuffer)
{
glDeleteFramebuffers(1,&ViewFramebuffer);
ViewFramebuffer = 0;
}
if (0 != ViewRenderbuffer)
{
glDeleteRenderbuffers(1,&ViewRenderbuffer);
ViewRenderbuffer = 0;
}
if (0 != ViewDepthRenderbuffer)
{
glDeleteRenderbuffers(1,&ViewDepthRenderbuffer);
ViewDepthRenderbuffer = 0;
}
#endif
// delete TwoDRenderer;
}
// -----------------------------------------------------------------------
// METHODS
// -----------------------------------------------------------------------
bool COGLES2Driver::genericDriverInit(const core::dimension2d<u32>& screenSize, bool stencilBuffer)
{
Name = glGetString(GL_VERSION);
printVersion();
#if defined(EGL_VERSION_1_0)
os::Printer::log(eglQueryString(EglDisplay, EGL_CLIENT_APIS));
#endif
// print renderer information
vendorName = glGetString(GL_VENDOR);
os::Printer::log(vendorName.c_str(), ELL_INFORMATION);
u32 i;
for (i = 0; i < MATERIAL_MAX_TEXTURES; ++i)
CurrentTexture[i] = 0;
// load extensions
initExtensions(this,
#if defined(EGL_VERSION_1_0)
EglDisplay,
#endif
stencilBuffer);
if (!BridgeCalls)
BridgeCalls = new COGLES2CallBridge(this);
StencilBuffer = stencilBuffer;
DriverAttributes->setAttribute("MaxTextures", MaxTextureUnits);
DriverAttributes->setAttribute("MaxSupportedTextures", MaxSupportedTextures);
DriverAttributes->setAttribute("MaxLights", MaxLights);
DriverAttributes->setAttribute("MaxAnisotropy", MaxAnisotropy);
DriverAttributes->setAttribute("MaxUserClipPlanes", MaxUserClipPlanes);
// DriverAttributes->setAttribute("MaxAuxBuffers", MaxAuxBuffers);
// DriverAttributes->setAttribute("MaxMultipleRenderTargets", MaxMultipleRenderTargets);
DriverAttributes->setAttribute("MaxIndices", (s32)MaxIndices);
DriverAttributes->setAttribute("MaxTextureSize", (s32)MaxTextureSize);
DriverAttributes->setAttribute("MaxTextureLODBias", MaxTextureLODBias);
DriverAttributes->setAttribute("Version", Version);
DriverAttributes->setAttribute("AntiAlias", AntiAlias);
// TwoDRenderer = new COGLES2Renderer2d(this, FileSystem);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
// Reset The Current Viewport
glViewport(0, 0, screenSize.Width, screenSize.Height);
UserClipPlane.reallocate(0);
setAmbientLight(SColorf(0.0f, 0.0f, 0.0f, 0.0f));
glClearDepthf(1.0f);
//TODO : OpenGL ES 2.0 Port : GL_PERSPECTIVE_CORRECTION_HINT
//glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
glHint(GL_GENERATE_MIPMAP_HINT, GL_FASTEST);
glDepthFunc(GL_LEQUAL);
glFrontFace(GL_CW);
// create material renderers
createMaterialRenderers();
// set the renderstates
setRenderStates3DMode();
// set fog mode
setFog(FogColor, FogType, FogStart, FogEnd, FogDensity, PixelFog, RangeFog);
// create matrix for flipping textures
TextureFlipMatrix.buildTextureTransform(0.0f, core::vector2df(0, 0), core::vector2df(0, 1.0f), core::vector2df(1.0f, -1.0f));
// We need to reset once more at the beginning of the first rendering.
// This fixes problems with intermediate changes to the material during texture load.
ResetRenderStates = true;
testGLError();
return true;
}
void COGLES2Driver::createMaterialRenderers()
{
// Load shaders from files (in future shaders will be merged with source code).
// Fixed pipeline.
core::stringc FPVSPath = IRR_OGLES2_SHADER_PATH;
FPVSPath += "COGLES2FixedPipeline.vsh";
core::stringc FPFSPath = IRR_OGLES2_SHADER_PATH;
FPFSPath += "COGLES2FixedPipeline.fsh";
io::IReadFile* FPVSFile = FileSystem->createAndOpenFile(FPVSPath);
io::IReadFile* FPFSFile = FileSystem->createAndOpenFile(FPFSPath);
c8* FPVSData = 0;
c8* FPFSData = 0;
long Size = FPVSFile->getSize();
if (Size)
{
FPVSData = new c8[Size+1];
FPVSFile->read(FPVSData, Size);
FPVSData[Size] = 0;
}
Size = FPFSFile->getSize();
if (Size)
{
// if both handles are the same we must reset the file
if (FPFSFile == FPVSFile)
FPFSFile->seek(0);
FPFSData = new c8[Size+1];
FPFSFile->read(FPFSData, Size);
FPFSData[Size] = 0;
}
// Normal Mapping.
core::stringc NMVSPath = IRR_OGLES2_SHADER_PATH;
NMVSPath += "COGLES2NormalMap.vsh";
core::stringc NMFSPath = IRR_OGLES2_SHADER_PATH;
NMFSPath += "COGLES2NormalMap.fsh";
io::IReadFile* NMVSFile = FileSystem->createAndOpenFile(NMVSPath);
io::IReadFile* NMFSFile = FileSystem->createAndOpenFile(NMFSPath);
c8* NMVSData = 0;
c8* NMFSData = 0;
Size = NMVSFile->getSize();
if (Size)
{
NMVSData = new c8[Size+1];
NMVSFile->read(NMVSData, Size);
NMVSData[Size] = 0;
}
Size = NMFSFile->getSize();
if (Size)
{
// if both handles are the same we must reset the file
if (NMFSFile == NMVSFile)
NMFSFile->seek(0);
NMFSData = new c8[Size+1];
NMFSFile->read(NMFSData, Size);
NMFSData[Size] = 0;
}
// Parallax Mapping.
core::stringc PMVSPath = IRR_OGLES2_SHADER_PATH;
PMVSPath += "COGLES2ParallaxMap.vsh";
core::stringc PMFSPath = IRR_OGLES2_SHADER_PATH;
PMFSPath += "COGLES2ParallaxMap.fsh";
io::IReadFile* PMVSFile = FileSystem->createAndOpenFile(FPVSPath);
io::IReadFile* PMFSFile = FileSystem->createAndOpenFile(FPFSPath);
c8* PMVSData = 0;
c8* PMFSData = 0;
Size = PMVSFile->getSize();
if (Size)
{
PMVSData = new c8[Size+1];
PMVSFile->read(PMVSData, Size);
PMVSData[Size] = 0;
}
Size = PMFSFile->getSize();
if (Size)
{
// if both handles are the same we must reset the file
if (PMFSFile == PMVSFile)
PMFSFile->seek(0);
PMFSData = new c8[Size+1];
PMFSFile->read(PMFSData, Size);
PMFSData[Size] = 0;
}
// Create materials.
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_SOLID, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_SOLID_2_LAYER, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_LIGHTMAP, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_LIGHTMAP_ADD, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_LIGHTMAP_M2, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_LIGHTMAP_M4, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_LIGHTMAP_LIGHTING, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_LIGHTMAP_LIGHTING_M2, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_LIGHTMAP_LIGHTING_M4, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_SPHERE_MAP, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_REFLECTION_2_LAYER, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_TRANSPARENT_ADD_COLOR, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_TRANSPARENT_ALPHA_CHANNEL, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_TRANSPARENT_ALPHA_CHANNEL_REF, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_TRANSPARENT_VERTEX_ALPHA, this));
addAndDropMaterialRenderer(new COGLES2NormalMapRenderer(NMVSData, NMFSData, EMT_NORMAL_MAP_SOLID, this));
addAndDropMaterialRenderer(new COGLES2NormalMapRenderer(NMVSData, NMFSData, EMT_NORMAL_MAP_TRANSPARENT_ADD_COLOR, this));
addAndDropMaterialRenderer(new COGLES2NormalMapRenderer(NMVSData, NMFSData, EMT_NORMAL_MAP_TRANSPARENT_VERTEX_ALPHA, this));
addAndDropMaterialRenderer(new COGLES2ParallaxMapRenderer(PMVSData, PMFSData, EMT_PARALLAX_MAP_SOLID, this));
addAndDropMaterialRenderer(new COGLES2ParallaxMapRenderer(PMVSData, PMFSData, EMT_PARALLAX_MAP_TRANSPARENT_ADD_COLOR, this));
addAndDropMaterialRenderer(new COGLES2ParallaxMapRenderer(PMVSData, PMFSData, EMT_PARALLAX_MAP_TRANSPARENT_VERTEX_ALPHA, this));
addAndDropMaterialRenderer(new COGLES2FixedPipelineRenderer(FPVSData, FPFSData, EMT_ONETEXTURE_BLEND, this));
}
//! presents the rendered scene on the screen, returns false if failed
bool COGLES2Driver::endScene()
{
CNullDriver::endScene();
#if defined(EGL_VERSION_1_0)
eglSwapBuffers(EglDisplay, EglSurface);
EGLint g = eglGetError();
if (EGL_SUCCESS != g)
{
if (EGL_CONTEXT_LOST == g)
{
// o-oh, ogl-es has lost contexts...
os::Printer::log("Context lost, please restart your app.");
}
else
os::Printer::log("Could not swap buffers for OpenGL-ES2 driver.");
return false;
}
#elif defined(GL_ES_VERSION_2_0)
glFlush();
glBindRenderbuffer(GL_RENDERBUFFER, ViewRenderbuffer);
#if defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
Device->displayEnd();
#endif
#endif
return true;
}
//! clears the zbuffer
bool COGLES2Driver::beginScene(bool backBuffer, bool zBuffer, SColor color,
const SExposedVideoData& videoData, core::rect<s32>* sourceRect)
{
CNullDriver::beginScene(backBuffer, zBuffer, color);
GLbitfield mask = 0;
if (backBuffer)
{
const f32 inv = 1.0f / 255.0f;
glClearColor(color.getRed() * inv, color.getGreen() * inv,
color.getBlue() * inv, color.getAlpha() * inv);
mask |= GL_COLOR_BUFFER_BIT;
}
if (zBuffer)
{
glDepthMask(GL_TRUE);
LastMaterial.ZWriteEnable = true;
mask |= GL_DEPTH_BUFFER_BIT;
}
glClear(mask);
testGLError();
return true;
}
//! Returns the transformation set by setTransform
const core::matrix4& COGLES2Driver::getTransform(E_TRANSFORMATION_STATE state) const
{
return Matrices[state];
}
//! sets transformation
void COGLES2Driver::setTransform(E_TRANSFORMATION_STATE state, const core::matrix4& mat)
{
Matrices[state] = mat;
Transformation3DChanged = true;
}
bool COGLES2Driver::updateVertexHardwareBuffer(SHWBufferLink_opengl *HWBuffer)
{
if (!HWBuffer)
return false;
const scene::IMeshBuffer* mb = HWBuffer->MeshBuffer;
const void* vertices = mb->getVertices();
const u32 vertexCount = mb->getVertexCount();
const E_VERTEX_TYPE vType = mb->getVertexType();
const u32 vertexSize = getVertexPitchFromType(vType);
//buffer vertex data, and convert colours...
core::array<c8> buffer(vertexSize * vertexCount);
memcpy(buffer.pointer(), vertices, vertexSize * vertexCount);
//get or create buffer
bool newBuffer = false;
if (!HWBuffer->vbo_verticesID)
{
glGenBuffers(1, &HWBuffer->vbo_verticesID);
if (!HWBuffer->vbo_verticesID) return false;
newBuffer = true;
}
else if (HWBuffer->vbo_verticesSize < vertexCount*vertexSize)
{
newBuffer = true;
}
glBindBuffer(GL_ARRAY_BUFFER, HWBuffer->vbo_verticesID);
//copy data to graphics card
glGetError(); // clear error storage
if (!newBuffer)
glBufferSubData(GL_ARRAY_BUFFER, 0, vertexCount * vertexSize, buffer.const_pointer());
else
{
HWBuffer->vbo_verticesSize = vertexCount * vertexSize;
if (HWBuffer->Mapped_Vertex == scene::EHM_STATIC)
glBufferData(GL_ARRAY_BUFFER, vertexCount * vertexSize, buffer.const_pointer(), GL_STATIC_DRAW);
else
glBufferData(GL_ARRAY_BUFFER, vertexCount * vertexSize, buffer.const_pointer(), GL_DYNAMIC_DRAW);
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
return (glGetError() == GL_NO_ERROR);
}
bool COGLES2Driver::updateIndexHardwareBuffer(SHWBufferLink_opengl *HWBuffer)
{
if (!HWBuffer)
return false;
const scene::IMeshBuffer* mb = HWBuffer->MeshBuffer;
const void* indices = mb->getIndices();
u32 indexCount = mb->getIndexCount();
GLenum indexSize;
switch (mb->getIndexType())
{
case(EIT_16BIT):
{
indexSize = sizeof(u16);
break;
}
case(EIT_32BIT):
{
indexSize = sizeof(u32);
break;
}
default:
{
return false;
}
}
//get or create buffer
bool newBuffer = false;
if (!HWBuffer->vbo_indicesID)
{
glGenBuffers(1, &HWBuffer->vbo_indicesID);
if (!HWBuffer->vbo_indicesID) return false;
newBuffer = true;
}
else if (HWBuffer->vbo_indicesSize < indexCount*indexSize)
{
newBuffer = true;
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, HWBuffer->vbo_indicesID);
//copy data to graphics card
glGetError(); // clear error storage
if (!newBuffer)
glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, indexCount * indexSize, indices);
else
{
HWBuffer->vbo_indicesSize = indexCount * indexSize;
if (HWBuffer->Mapped_Index == scene::EHM_STATIC)
glBufferData(GL_ELEMENT_ARRAY_BUFFER, indexCount * indexSize, indices, GL_STATIC_DRAW);
else
glBufferData(GL_ELEMENT_ARRAY_BUFFER, indexCount * indexSize, indices, GL_DYNAMIC_DRAW);
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
return (glGetError() == GL_NO_ERROR);
}
//! updates hardware buffer if needed
bool COGLES2Driver::updateHardwareBuffer(SHWBufferLink *HWBuffer)
{
if (!HWBuffer)
return false;
if (HWBuffer->Mapped_Vertex != scene::EHM_NEVER)
{
if (HWBuffer->ChangedID_Vertex != HWBuffer->MeshBuffer->getChangedID_Vertex()
|| !((SHWBufferLink_opengl*)HWBuffer)->vbo_verticesID)
{
HWBuffer->ChangedID_Vertex = HWBuffer->MeshBuffer->getChangedID_Vertex();
if (!updateVertexHardwareBuffer((SHWBufferLink_opengl*)HWBuffer))
return false;
}
}
if (HWBuffer->Mapped_Index != scene::EHM_NEVER)
{
if (HWBuffer->ChangedID_Index != HWBuffer->MeshBuffer->getChangedID_Index()
|| !((SHWBufferLink_opengl*)HWBuffer)->vbo_indicesID)
{
HWBuffer->ChangedID_Index = HWBuffer->MeshBuffer->getChangedID_Index();
if (!updateIndexHardwareBuffer((SHWBufferLink_opengl*)HWBuffer))
return false;
}
}
return true;
}
//! Create hardware buffer from meshbuffer
COGLES2Driver::SHWBufferLink *COGLES2Driver::createHardwareBuffer(const scene::IMeshBuffer* mb)
{
if (!mb || (mb->getHardwareMappingHint_Index() == scene::EHM_NEVER && mb->getHardwareMappingHint_Vertex() == scene::EHM_NEVER))
return 0;
SHWBufferLink_opengl *HWBuffer = new SHWBufferLink_opengl(mb);
//add to map
HWBufferMap.insert(HWBuffer->MeshBuffer, HWBuffer);
HWBuffer->ChangedID_Vertex = HWBuffer->MeshBuffer->getChangedID_Vertex();
HWBuffer->ChangedID_Index = HWBuffer->MeshBuffer->getChangedID_Index();
HWBuffer->Mapped_Vertex = mb->getHardwareMappingHint_Vertex();
HWBuffer->Mapped_Index = mb->getHardwareMappingHint_Index();
HWBuffer->LastUsed = 0;
HWBuffer->vbo_verticesID = 0;
HWBuffer->vbo_indicesID = 0;
HWBuffer->vbo_verticesSize = 0;
HWBuffer->vbo_indicesSize = 0;
if (!updateHardwareBuffer(HWBuffer))
{
deleteHardwareBuffer(HWBuffer);
return 0;
}
return HWBuffer;
}
void COGLES2Driver::deleteHardwareBuffer(SHWBufferLink *_HWBuffer)
{
if (!_HWBuffer)
return;
SHWBufferLink_opengl *HWBuffer = (SHWBufferLink_opengl*)_HWBuffer;
if (HWBuffer->vbo_verticesID)
{
glDeleteBuffers(1, &HWBuffer->vbo_verticesID);
HWBuffer->vbo_verticesID = 0;
}
if (HWBuffer->vbo_indicesID)
{
glDeleteBuffers(1, &HWBuffer->vbo_indicesID);
HWBuffer->vbo_indicesID = 0;
}
CNullDriver::deleteHardwareBuffer(_HWBuffer);
}
//! Draw hardware buffer
void COGLES2Driver::drawHardwareBuffer(SHWBufferLink *_HWBuffer)
{
if (!_HWBuffer)
return;
SHWBufferLink_opengl *HWBuffer = (SHWBufferLink_opengl*)_HWBuffer;
updateHardwareBuffer(HWBuffer); //check if update is needed
HWBuffer->LastUsed = 0;//reset count
const scene::IMeshBuffer* mb = HWBuffer->MeshBuffer;
const void *vertices = mb->getVertices();
const void *indexList = mb->getIndices();
if (HWBuffer->Mapped_Vertex != scene::EHM_NEVER)
{
glBindBuffer(GL_ARRAY_BUFFER, HWBuffer->vbo_verticesID);
vertices = 0;
}
if (HWBuffer->Mapped_Index != scene::EHM_NEVER)
{
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, HWBuffer->vbo_indicesID);
indexList = 0;
}
drawVertexPrimitiveList(vertices, mb->getVertexCount(),
indexList, mb->getIndexCount() / 3,
mb->getVertexType(), scene::EPT_TRIANGLES,
mb->getIndexType());
if (HWBuffer->Mapped_Vertex != scene::EHM_NEVER)
glBindBuffer(GL_ARRAY_BUFFER, 0);
if (HWBuffer->Mapped_Index != scene::EHM_NEVER)
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
}
// small helper function to create vertex buffer object adress offsets
static inline u8* buffer_offset(const long offset)
{
return ((u8*)0 + offset);
}
//! draws a vertex primitive list
void COGLES2Driver::drawVertexPrimitiveList(const void* vertices, u32 vertexCount,
const void* indexList, u32 primitiveCount,
E_VERTEX_TYPE vType, scene::E_PRIMITIVE_TYPE pType, E_INDEX_TYPE iType)
{
testGLError();
if (!checkPrimitiveCount(primitiveCount))
return;
setRenderStates3DMode();
drawVertexPrimitiveList2d3d(vertices, vertexCount, (const u16*)indexList, primitiveCount, vType, pType, iType);
if (static_cast<u32>(Material.MaterialType) < MaterialRenderers.size())
MaterialRenderers[Material.MaterialType].Renderer->PostRender(this, video::EVT_STANDARD);
}
void COGLES2Driver::drawVertexPrimitiveList2d3d(const void* vertices, u32 vertexCount,
const void* indexList, u32 primitiveCount,
E_VERTEX_TYPE vType, scene::E_PRIMITIVE_TYPE pType, E_INDEX_TYPE iType, bool threed)
{
if (!primitiveCount || !vertexCount)
return;
if (!threed && !checkPrimitiveCount(primitiveCount))
return;
CNullDriver::drawVertexPrimitiveList(vertices, vertexCount, indexList, primitiveCount, vType, pType, iType);
//TODO: treat #ifdef GL_OES_point_size_array outside this if
{
glEnableVertexAttribArray(EVA_COLOR);
glEnableVertexAttribArray(EVA_POSITION);
if ((pType != scene::EPT_POINTS) && (pType != scene::EPT_POINT_SPRITES))
{
glEnableVertexAttribArray(EVA_TCOORD0);
}
#ifdef GL_OES_point_size_array
else if (FeatureAvailable[IRR_OES_point_size_array] && (Material.Thickness == 0.0f))
glEnableClientState(GL_POINT_SIZE_ARRAY_OES);
#endif
if (threed && (pType != scene::EPT_POINTS) && (pType != scene::EPT_POINT_SPRITES))
{
glEnableVertexAttribArray(EVA_NORMAL);
}
switch (vType)
{
case EVT_STANDARD:
if (vertices)
{
#ifdef GL_OES_point_size_array
if ((pType == scene::EPT_POINTS) || (pType == scene::EPT_POINT_SPRITES))
{
if (FeatureAvailable[IRR_OES_point_size_array] && (Material.Thickness == 0.0f))
glPointSizePointerOES(GL_FLOAT, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Normal.X);
}
else
#endif
glVertexAttribPointer(EVA_POSITION, (threed ? 3 : 2), GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Pos);
if (threed)
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Normal);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Color);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].TCoords);
}
else
{
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), 0);
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertex), buffer_offset(12));
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), buffer_offset(24));
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex), buffer_offset(28));
}
if (CurrentTexture[1])
{
// There must be some optimisation here as it uses the same texture coord !
glEnableVertexAttribArray(EVA_TCOORD1);
if (vertices)
glVertexAttribPointer(EVA_TCOORD1, 2, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].TCoords);
else
glVertexAttribPointer(EVA_TCOORD1, 2, GL_FLOAT, false, sizeof(S3DVertex), buffer_offset(28));
}
break;
case EVT_2TCOORDS:
glEnableVertexAttribArray(EVA_TCOORD1);
if (vertices)
{
glVertexAttribPointer(EVA_POSITION, (threed ? 3 : 2), GL_FLOAT, false, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].Pos);
if (threed)
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].Normal);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].Color);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].TCoords);
glVertexAttribPointer(EVA_TCOORD1, 2, GL_FLOAT, false, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].TCoords2);
}
else
{
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex2TCoords), buffer_offset(0));
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertex2TCoords), buffer_offset(12));
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex2TCoords), buffer_offset(24));
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex2TCoords), buffer_offset(28));
glVertexAttribPointer(EVA_TCOORD1, 2, GL_FLOAT, false, sizeof(S3DVertex2TCoords), buffer_offset(36));
}
break;
case EVT_TANGENTS:
glEnableVertexAttribArray(EVA_TANGENT);
glEnableVertexAttribArray(EVA_BINORMAL);
if (vertices)
{
glVertexAttribPointer(EVA_POSITION, (threed ? 3 : 2), GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Pos);
if (threed)
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Normal);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Color);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].TCoords);
glVertexAttribPointer(EVA_TANGENT, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Tangent);
glVertexAttribPointer(EVA_BINORMAL, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Binormal);
}
else
{
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(0));
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(12));
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertexTangents), buffer_offset(24));
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(28));
glVertexAttribPointer(EVA_TANGENT, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(36));
glVertexAttribPointer(EVA_BINORMAL, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(48));
}
break;
}
}
// draw everything
GLenum indexSize = 0;
switch (iType)
{
case(EIT_16BIT):
{
indexSize = GL_UNSIGNED_SHORT;
break;
}
case(EIT_32BIT):
{
#ifdef GL_OES_element_index_uint
#ifndef GL_UNSIGNED_INT
#define GL_UNSIGNED_INT 0x1405
#endif
if (FeatureAvailable[IRR_OES_element_index_uint])
indexSize = GL_UNSIGNED_INT;
else
#endif
indexSize = GL_UNSIGNED_SHORT;
break;
}
}
switch (pType)
{
case scene::EPT_POINTS:
case scene::EPT_POINT_SPRITES:
{
#ifdef GL_OES_point_sprite
if (pType == scene::EPT_POINT_SPRITES && FeatureAvailable[IRR_OES_point_sprite])
glEnable(GL_POINT_SPRITE_OES);
#endif
// if ==0 we use the point size array
if (Material.Thickness != 0.f)
{
// float quadratic[] = {0.0f, 0.0f, 10.01f};
//TODO : OpenGL ES 2.0 Port GL_POINT_DISTANCE_ATTENUATION
//glPointParameterfv(GL_POINT_DISTANCE_ATTENUATION, quadratic);
// float maxParticleSize = 1.0f;
//TODO : OpenGL ES 2.0 Port GL_POINT_SIZE_MAX
//glGetFloatv(GL_POINT_SIZE_MAX, &maxParticleSize);
// maxParticleSize=maxParticleSize<Material.Thickness?maxParticleSize:Material.Thickness;
// glPointParameterf(GL_POINT_SIZE_MAX,maxParticleSize);
// glPointParameterf(GL_POINT_SIZE_MIN,Material.Thickness);
//TODO : OpenGL ES 2.0 Port GL_POINT_FADE_THRESHOLD_SIZE
//glPointParameterf(GL_POINT_FADE_THRESHOLD_SIZE, 60.0f);
//glPointSize(Material.Thickness);
}
#ifdef GL_OES_point_sprite
if (pType == scene::EPT_POINT_SPRITES && FeatureAvailable[IRR_OES_point_sprite])
glTexEnvf(GL_POINT_SPRITE_OES, GL_COORD_REPLACE_OES, GL_TRUE);
#endif
glDrawArrays(GL_POINTS, 0, primitiveCount);
#ifdef GL_OES_point_sprite
if (pType == scene::EPT_POINT_SPRITES && FeatureAvailable[IRR_OES_point_sprite])
{
glDisable(GL_POINT_SPRITE_OES);
glTexEnvf(GL_POINT_SPRITE_OES, GL_COORD_REPLACE_OES, GL_FALSE);
}
#endif
}
break;
case scene::EPT_LINE_STRIP:
glDrawElements(GL_LINE_STRIP, primitiveCount + 1, indexSize, indexList);
break;
case scene::EPT_LINE_LOOP:
glDrawElements(GL_LINE_LOOP, primitiveCount, indexSize, indexList);
break;
case scene::EPT_LINES:
glDrawElements(GL_LINES, primitiveCount*2, indexSize, indexList);
break;
case scene::EPT_TRIANGLE_STRIP:
glDrawElements(GL_TRIANGLE_STRIP, primitiveCount + 2, indexSize, indexList);
break;
case scene::EPT_TRIANGLE_FAN:
glDrawElements(GL_TRIANGLE_FAN, primitiveCount + 2, indexSize, indexList);
break;
case scene::EPT_TRIANGLES:
glDrawElements((LastMaterial.Wireframe) ? GL_LINES : (LastMaterial.PointCloud) ? GL_POINTS : GL_TRIANGLES, primitiveCount*3, indexSize, indexList);
break;
case scene::EPT_QUAD_STRIP:
// TODO ogl-es
// glDrawElements(GL_QUAD_STRIP, primitiveCount*2+2, indexSize, indexList);
break;
case scene::EPT_QUADS:
// TODO ogl-es
// glDrawElements(GL_QUADS, primitiveCount*4, indexSize, indexList);
break;
case scene::EPT_POLYGON:
// TODO ogl-es
// glDrawElements(GL_POLYGON, primitiveCount, indexSize, indexList);
break;
}
{
if (vType == EVT_TANGENTS)
{
glDisableVertexAttribArray(EVA_TANGENT);
glDisableVertexAttribArray(EVA_BINORMAL);
}
if ((vType != EVT_STANDARD) || CurrentTexture[1])
{
glDisableVertexAttribArray(EVA_TCOORD1);
}
#ifdef GL_OES_point_size_array
if (FeatureAvailable[IRR_OES_point_size_array] && (Material.Thickness == 0.0f))
glDisableClientState(GL_POINT_SIZE_ARRAY_OES);
#endif
glDisableVertexAttribArray(EVA_POSITION);
glDisableVertexAttribArray(EVA_NORMAL);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_TCOORD0);
}
testGLError();
}
//! draws a 2d image, using a color and the alpha channel of the texture
void COGLES2Driver::draw2DImage(const video::ITexture* texture,
const core::position2d<s32>& pos,
const core::rect<s32>& sourceRect,
const core::rect<s32>* clipRect, SColor color,
bool useAlphaChannelOfTexture)
{
if (!texture)
return;
if (!sourceRect.isValid())
return;
core::position2d<s32> targetPos(pos);
core::position2d<s32> sourcePos(sourceRect.UpperLeftCorner);
core::dimension2d<s32> sourceSize(sourceRect.getSize());
if (clipRect)
{
if (targetPos.X < clipRect->UpperLeftCorner.X)
{
sourceSize.Width += targetPos.X - clipRect->UpperLeftCorner.X;
if (sourceSize.Width <= 0)
return;
sourcePos.X -= targetPos.X - clipRect->UpperLeftCorner.X;
targetPos.X = clipRect->UpperLeftCorner.X;
}
if (targetPos.X + sourceSize.Width > clipRect->LowerRightCorner.X)
{
sourceSize.Width -= (targetPos.X + sourceSize.Width) - clipRect->LowerRightCorner.X;
if (sourceSize.Width <= 0)
return;
}
if (targetPos.Y < clipRect->UpperLeftCorner.Y)
{
sourceSize.Height += targetPos.Y - clipRect->UpperLeftCorner.Y;
if (sourceSize.Height <= 0)
return;
sourcePos.Y -= targetPos.Y - clipRect->UpperLeftCorner.Y;
targetPos.Y = clipRect->UpperLeftCorner.Y;
}
if (targetPos.Y + sourceSize.Height > clipRect->LowerRightCorner.Y)
{
sourceSize.Height -= (targetPos.Y + sourceSize.Height) - clipRect->LowerRightCorner.Y;
if (sourceSize.Height <= 0)
return;
}
}
// clip these coordinates
if (targetPos.X < 0)
{
sourceSize.Width += targetPos.X;
if (sourceSize.Width <= 0)
return;
sourcePos.X -= targetPos.X;
targetPos.X = 0;
}
const core::dimension2d<u32>& renderTargetSize = getCurrentRenderTargetSize();
if (targetPos.X + sourceSize.Width > (s32)renderTargetSize.Width)
{
sourceSize.Width -= (targetPos.X + sourceSize.Width) - renderTargetSize.Width;
if (sourceSize.Width <= 0)
return;
}
if (targetPos.Y < 0)
{
sourceSize.Height += targetPos.Y;
if (sourceSize.Height <= 0)
return;
sourcePos.Y -= targetPos.Y;
targetPos.Y = 0;
}
if (targetPos.Y + sourceSize.Height > (s32)renderTargetSize.Height)
{
sourceSize.Height -= (targetPos.Y + sourceSize.Height) - renderTargetSize.Height;
if (sourceSize.Height <= 0)
return;
}
// ok, we've clipped everything.
// now draw it.
// texcoords need to be flipped horizontally for RTTs
const bool isRTT = texture->isRenderTarget();
const core::dimension2d<u32>& ss = texture->getOriginalSize();
const f32 invW = 1.f / static_cast<f32>(ss.Width);
const f32 invH = 1.f / static_cast<f32>(ss.Height);
const core::rect<f32> tcoords(
sourcePos.X * invW,
(isRTT ? (sourcePos.Y + sourceSize.Height) : sourcePos.Y) * invH,
(sourcePos.X + sourceSize.Width) * invW,
(isRTT ? sourcePos.Y : (sourcePos.Y + sourceSize.Height)) * invH);
const core::rect<s32> poss(targetPos, sourceSize);
disableTextures(1);
if (!setActiveTexture(0, texture))
return;
setRenderStates2DMode(color.getAlpha() < 255, true, useAlphaChannelOfTexture);
u16 indices[] = {0, 1, 2, 3};
S3DVertex vertices[4];
vertices[0] = S3DVertex((f32)poss.UpperLeftCorner.X, (f32)poss.UpperLeftCorner.Y, 0, 0, 0, 1, color, tcoords.UpperLeftCorner.X, tcoords.UpperLeftCorner.Y);
vertices[1] = S3DVertex((f32)poss.LowerRightCorner.X, (f32)poss.UpperLeftCorner.Y, 0, 0, 0, 1, color, tcoords.LowerRightCorner.X, tcoords.UpperLeftCorner.Y);
vertices[2] = S3DVertex((f32)poss.LowerRightCorner.X, (f32)poss.LowerRightCorner.Y, 0, 0, 0, 1, color, tcoords.LowerRightCorner.X, tcoords.LowerRightCorner.Y);
vertices[3] = S3DVertex((f32)poss.UpperLeftCorner.X, (f32)poss.LowerRightCorner.Y, 0, 0, 0, 1, color, tcoords.UpperLeftCorner.X, tcoords.LowerRightCorner.Y);
drawVertexPrimitiveList2d3d(vertices, 4, indices, 2, video::EVT_STANDARD, scene::EPT_TRIANGLE_FAN, EIT_16BIT, false);
}
void COGLES2Driver::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)
{
if (!texture)
return;
if (!setActiveTexture(0, const_cast<video::ITexture*>(texture)))
return;
const irr::u32 drawCount = core::min_<u32>(positions.size(), sourceRects.size());
core::array<S3DVertex> vtx(drawCount * 4);
core::array<u16> indices(drawCount * 6);
for (u32 i = 0; i < drawCount; i++)
{
core::position2d<s32> targetPos = positions[i];
core::position2d<s32> sourcePos = sourceRects[i].UpperLeftCorner;
// This needs to be signed as it may go negative.
core::dimension2d<s32> sourceSize(sourceRects[i].getSize());
if (clipRect)
{
if (targetPos.X < clipRect->UpperLeftCorner.X)
{
sourceSize.Width += targetPos.X - clipRect->UpperLeftCorner.X;
if (sourceSize.Width <= 0)
continue;
sourcePos.X -= targetPos.X - clipRect->UpperLeftCorner.X;
targetPos.X = clipRect->UpperLeftCorner.X;
}
if (targetPos.X + (s32)sourceSize.Width > clipRect->LowerRightCorner.X)
{
sourceSize.Width -= (targetPos.X + sourceSize.Width) - clipRect->LowerRightCorner.X;
if (sourceSize.Width <= 0)
continue;
}
if (targetPos.Y < clipRect->UpperLeftCorner.Y)
{
sourceSize.Height += targetPos.Y - clipRect->UpperLeftCorner.Y;
if (sourceSize.Height <= 0)
continue;
sourcePos.Y -= targetPos.Y - clipRect->UpperLeftCorner.Y;
targetPos.Y = clipRect->UpperLeftCorner.Y;
}
if (targetPos.Y + (s32)sourceSize.Height > clipRect->LowerRightCorner.Y)
{
sourceSize.Height -= (targetPos.Y + sourceSize.Height) - clipRect->LowerRightCorner.Y;
if (sourceSize.Height <= 0)
continue;
}
}
// clip these coordinates
if (targetPos.X < 0)
{
sourceSize.Width += targetPos.X;
if (sourceSize.Width <= 0)
continue;
sourcePos.X -= targetPos.X;
targetPos.X = 0;
}
const core::dimension2d<u32>& renderTargetSize = getCurrentRenderTargetSize();
if (targetPos.X + sourceSize.Width > (s32)renderTargetSize.Width)
{
sourceSize.Width -= (targetPos.X + sourceSize.Width) - renderTargetSize.Width;
if (sourceSize.Width <= 0)
continue;
}
if (targetPos.Y < 0)
{
sourceSize.Height += targetPos.Y;
if (sourceSize.Height <= 0)
continue;
sourcePos.Y -= targetPos.Y;
targetPos.Y = 0;
}
if (targetPos.Y + sourceSize.Height > (s32)renderTargetSize.Height)
{
sourceSize.Height -= (targetPos.Y + sourceSize.Height) - renderTargetSize.Height;
if (sourceSize.Height <= 0)
continue;
}
// ok, we've clipped everything.
// now draw it.
core::rect<f32> tcoords;
tcoords.UpperLeftCorner.X = (((f32)sourcePos.X)) / texture->getOriginalSize().Width ;
tcoords.UpperLeftCorner.Y = (((f32)sourcePos.Y)) / texture->getOriginalSize().Height;
tcoords.LowerRightCorner.X = tcoords.UpperLeftCorner.X + ((f32)(sourceSize.Width) / texture->getOriginalSize().Width);
tcoords.LowerRightCorner.Y = tcoords.UpperLeftCorner.Y + ((f32)(sourceSize.Height) / texture->getOriginalSize().Height);
const core::rect<s32> poss(targetPos, sourceSize);
setRenderStates2DMode(color.getAlpha() < 255, true, useAlphaChannelOfTexture);
vtx.push_back(S3DVertex((f32)poss.UpperLeftCorner.X, (f32)poss.UpperLeftCorner.Y, 0.0f,
0.0f, 0.0f, 0.0f, color,
tcoords.UpperLeftCorner.X, tcoords.UpperLeftCorner.Y));
vtx.push_back(S3DVertex((f32)poss.LowerRightCorner.X, (f32)poss.UpperLeftCorner.Y, 0.0f,
0.0f, 0.0f, 0.0f, color,
tcoords.LowerRightCorner.X, tcoords.UpperLeftCorner.Y));
vtx.push_back(S3DVertex((f32)poss.LowerRightCorner.X, (f32)poss.LowerRightCorner.Y, 0.0f,
0.0f, 0.0f, 0.0f, color,
tcoords.LowerRightCorner.X, tcoords.LowerRightCorner.Y));
vtx.push_back(S3DVertex((f32)poss.UpperLeftCorner.X, (f32)poss.LowerRightCorner.Y, 0.0f,
0.0f, 0.0f, 0.0f, color,
tcoords.UpperLeftCorner.X, tcoords.LowerRightCorner.Y));
const u32 curPos = vtx.size() - 4;
indices.push_back(0 + curPos);
indices.push_back(1 + curPos);
indices.push_back(2 + curPos);
indices.push_back(0 + curPos);
indices.push_back(2 + curPos);
indices.push_back(3 + curPos);
}
if (vtx.size())
{
drawVertexPrimitiveList2d3d(vtx.pointer(), vtx.size(),
indices.pointer(), indices.size() / 3,
EVT_STANDARD, scene::EPT_TRIANGLES,
EIT_16BIT, false);
}
}
//! The same, but with a four element array of colors, one for each vertex
void COGLES2Driver::draw2DImage(const video::ITexture* texture,
const core::rect<s32>& destRect,
const core::rect<s32>& sourceRect, const core::rect<s32>* clipRect,
const video::SColor* const colors, bool useAlphaChannelOfTexture)
{
if (!texture)
return;
// texcoords need to be flipped horizontally for RTTs
const bool isRTT = texture->isRenderTarget();
const core::dimension2du& ss = texture->getOriginalSize();
const f32 invW = 1.f / static_cast<f32>(ss.Width);
const f32 invH = 1.f / static_cast<f32>(ss.Height);
const core::rect<f32> tcoords(
sourceRect.UpperLeftCorner.X * invW,
(isRTT ? sourceRect.LowerRightCorner.Y : sourceRect.UpperLeftCorner.Y) * invH,
sourceRect.LowerRightCorner.X * invW,
(isRTT ? sourceRect.UpperLeftCorner.Y : sourceRect.LowerRightCorner.Y) *invH);
const video::SColor temp[4] =
{
0xFFFFFFFF,
0xFFFFFFFF,
0xFFFFFFFF,
0xFFFFFFFF
};
const video::SColor* const useColor = colors ? colors : temp;
disableTextures(1);
setActiveTexture(0, texture);
setRenderStates2DMode(useColor[0].getAlpha() < 255 || useColor[1].getAlpha() < 255 ||
useColor[2].getAlpha() < 255 || useColor[3].getAlpha() < 255,
true, useAlphaChannelOfTexture);
if (clipRect)
{
if (!clipRect->isValid())
return;
glEnable(GL_SCISSOR_TEST);
const core::dimension2d<u32>& renderTargetSize = getCurrentRenderTargetSize();
glScissor(clipRect->UpperLeftCorner.X, renderTargetSize.Height - clipRect->LowerRightCorner.Y,
clipRect->getWidth(), clipRect->getHeight());
}
u16 indices[] = {0, 1, 2, 3};
S3DVertex vertices[4];
vertices[0] = S3DVertex((f32)destRect.UpperLeftCorner.X, (f32)destRect.UpperLeftCorner.Y, 0, 0, 0, 1, useColor[0], tcoords.UpperLeftCorner.X, tcoords.UpperLeftCorner.Y);
vertices[1] = S3DVertex((f32)destRect.LowerRightCorner.X, (f32)destRect.UpperLeftCorner.Y, 0, 0, 0, 1, useColor[3], tcoords.LowerRightCorner.X, tcoords.UpperLeftCorner.Y);
vertices[2] = S3DVertex((f32)destRect.LowerRightCorner.X, (f32)destRect.LowerRightCorner.Y, 0, 0, 0, 1, useColor[2], tcoords.LowerRightCorner.X, tcoords.LowerRightCorner.Y);
vertices[3] = S3DVertex((f32)destRect.UpperLeftCorner.X, (f32)destRect.LowerRightCorner.Y, 0, 0, 0, 1, useColor[1], tcoords.UpperLeftCorner.X, tcoords.LowerRightCorner.Y);
drawVertexPrimitiveList2d3d(vertices, 4, indices, 2, video::EVT_STANDARD, scene::EPT_TRIANGLE_FAN, EIT_16BIT, false);
if (clipRect)
glDisable(GL_SCISSOR_TEST);
testGLError();
}
//! draws a set of 2d images, using a color and the alpha channel
void COGLES2Driver::draw2DImageBatch(const video::ITexture* texture,
const core::position2d<s32>& pos,
const core::array<core::rect<s32> >& sourceRects,
const core::array<s32>& indices, s32 kerningWidth,
const core::rect<s32>* clipRect, SColor color,
bool useAlphaChannelOfTexture)
{
if (!texture)
return;
disableTextures(1);
if (!setActiveTexture(0, texture))
return;
setRenderStates2DMode(color.getAlpha() < 255, true, useAlphaChannelOfTexture);
if (clipRect)
{
if (!clipRect->isValid())
return;
glEnable(GL_SCISSOR_TEST);
const core::dimension2d<u32>& renderTargetSize = getCurrentRenderTargetSize();
glScissor(clipRect->UpperLeftCorner.X, renderTargetSize.Height - clipRect->LowerRightCorner.Y,
clipRect->getWidth(), clipRect->getHeight());
}
const core::dimension2du& ss = texture->getOriginalSize();
core::position2d<s32> targetPos(pos);
// texcoords need to be flipped horizontally for RTTs
const bool isRTT = texture->isRenderTarget();
const f32 invW = 1.f / static_cast<f32>(ss.Width);
const f32 invH = 1.f / static_cast<f32>(ss.Height);
core::array<S3DVertex> vertices;
core::array<u16> quadIndices;
vertices.reallocate(indices.size()*4);
quadIndices.reallocate(indices.size()*3);
for (u32 i = 0; i < indices.size(); ++i)
{
const s32 currentIndex = indices[i];
if (!sourceRects[currentIndex].isValid())
break;
const core::rect<f32> tcoords(
sourceRects[currentIndex].UpperLeftCorner.X * invW,
(isRTT ? sourceRects[currentIndex].LowerRightCorner.Y : sourceRects[currentIndex].UpperLeftCorner.Y) * invH,
sourceRects[currentIndex].LowerRightCorner.X * invW,
(isRTT ? sourceRects[currentIndex].UpperLeftCorner.Y : sourceRects[currentIndex].LowerRightCorner.Y) * invH);
const core::rect<s32> poss(targetPos, sourceRects[currentIndex].getSize());
const u32 vstart = vertices.size();
vertices.push_back(S3DVertex((f32)poss.UpperLeftCorner.X, (f32)poss.UpperLeftCorner.Y, 0, 0, 0, 1, color, tcoords.UpperLeftCorner.X, tcoords.UpperLeftCorner.Y));
vertices.push_back(S3DVertex((f32)poss.LowerRightCorner.X, (f32)poss.UpperLeftCorner.Y, 0, 0, 0, 1, color, tcoords.LowerRightCorner.X, tcoords.UpperLeftCorner.Y));
vertices.push_back(S3DVertex((f32)poss.LowerRightCorner.X, (f32)poss.LowerRightCorner.Y, 0, 0, 0, 1, color, tcoords.LowerRightCorner.X, tcoords.LowerRightCorner.Y));
vertices.push_back(S3DVertex((f32)poss.UpperLeftCorner.X, (f32)poss.LowerRightCorner.Y, 0, 0, 0, 1, color, tcoords.UpperLeftCorner.X, tcoords.LowerRightCorner.Y));
quadIndices.push_back(vstart);
quadIndices.push_back(vstart+1);
quadIndices.push_back(vstart+2);
quadIndices.push_back(vstart);
quadIndices.push_back(vstart+2);
quadIndices.push_back(vstart+3);
targetPos.X += sourceRects[currentIndex].getWidth();
}
if (vertices.size())
drawVertexPrimitiveList2d3d(vertices.pointer(), vertices.size(),
quadIndices.pointer(), vertices.size()/2,
video::EVT_STANDARD, scene::EPT_TRIANGLES,
EIT_16BIT, false);
if (clipRect)
glDisable(GL_SCISSOR_TEST);
testGLError();
}
//! draw a 2d rectangle
void COGLES2Driver::draw2DRectangle(SColor color,
const core::rect<s32>& position,
const core::rect<s32>* clip)
{
disableTextures();
setRenderStates2DMode(color.getAlpha() < 255, false, false);
core::rect<s32> pos = position;
if (clip)
pos.clipAgainst(*clip);
if (!pos.isValid())
return;
u16 indices[] = {0, 1, 2, 3};
S3DVertex vertices[4];
vertices[0] = S3DVertex((f32)pos.UpperLeftCorner.X, (f32)pos.UpperLeftCorner.Y, 0, 0, 0, 1, color, 0, 0);
vertices[1] = S3DVertex((f32)pos.LowerRightCorner.X, (f32)pos.UpperLeftCorner.Y, 0, 0, 0, 1, color, 0, 0);
vertices[2] = S3DVertex((f32)pos.LowerRightCorner.X, (f32)pos.LowerRightCorner.Y, 0, 0, 0, 1, color, 0, 0);
vertices[3] = S3DVertex((f32)pos.UpperLeftCorner.X, (f32)pos.LowerRightCorner.Y, 0, 0, 0, 1, color, 0, 0);
drawVertexPrimitiveList2d3d(vertices, 4, indices, 2, video::EVT_STANDARD, scene::EPT_TRIANGLE_FAN, EIT_16BIT, false);
}
//! draw an 2d rectangle
void COGLES2Driver::draw2DRectangle(const core::rect<s32>& position,
SColor colorLeftUp, SColor colorRightUp,
SColor colorLeftDown, SColor colorRightDown,
const core::rect<s32>* clip)
{
core::rect<s32> pos = position;
if (clip)
pos.clipAgainst(*clip);
if (!pos.isValid())
return;
disableTextures();
setRenderStates2DMode(colorLeftUp.getAlpha() < 255 ||
colorRightUp.getAlpha() < 255 ||
colorLeftDown.getAlpha() < 255 ||
colorRightDown.getAlpha() < 255, false, false);
u16 indices[] = {0, 1, 2, 3};
S3DVertex vertices[4];
vertices[0] = S3DVertex((f32)pos.UpperLeftCorner.X, (f32)pos.UpperLeftCorner.Y, 0, 0, 0, 1, colorLeftUp, 0, 0);
vertices[1] = S3DVertex((f32)pos.LowerRightCorner.X, (f32)pos.UpperLeftCorner.Y, 0, 0, 0, 1, colorRightUp, 0, 0);
vertices[2] = S3DVertex((f32)pos.LowerRightCorner.X, (f32)pos.LowerRightCorner.Y, 0, 0, 0, 1, colorRightDown, 0, 0);
vertices[3] = S3DVertex((f32)pos.UpperLeftCorner.X, (f32)pos.LowerRightCorner.Y, 0, 0, 0, 1, colorLeftDown, 0, 0);
drawVertexPrimitiveList2d3d(vertices, 4, indices, 2, video::EVT_STANDARD, scene::EPT_TRIANGLE_FAN, EIT_16BIT, false);
}
//! Draws a 2d line.
void COGLES2Driver::draw2DLine(const core::position2d<s32>& start,
const core::position2d<s32>& end, SColor color)
{
disableTextures();
setRenderStates2DMode(color.getAlpha() < 255, false, false);
u16 indices[] = {0, 1};
S3DVertex vertices[2];
vertices[0] = S3DVertex((f32)start.X, (f32)start.Y, 0, 0, 0, 1, color, 0, 0);
vertices[1] = S3DVertex((f32)end.X, (f32)end.Y, 0, 0, 0, 1, color, 1, 1);
drawVertexPrimitiveList2d3d(vertices, 2, indices, 1, video::EVT_STANDARD, scene::EPT_LINES, EIT_16BIT, false);
}
//! Draws a pixel
void COGLES2Driver::drawPixel(u32 x, u32 y, const SColor &color)
{
const core::dimension2d<u32>& renderTargetSize = getCurrentRenderTargetSize();
if (x > (u32)renderTargetSize.Width || y > (u32)renderTargetSize.Height)
return;
disableTextures();
setRenderStates2DMode(color.getAlpha() < 255, false, false);
u16 indices[] = {0};
S3DVertex vertices[1];
vertices[0] = S3DVertex((f32)x, (f32)y, 0, 0, 0, 1, color, 0, 0);
drawVertexPrimitiveList2d3d(vertices, 1, indices, 1, video::EVT_STANDARD, scene::EPT_POINTS, EIT_16BIT, false);
}
bool COGLES2Driver::setActiveTexture(u32 stage, const video::ITexture* texture)
{
if (stage >= MaxSupportedTextures)
return false;
if (CurrentTexture[stage]==texture)
return true;
CurrentTexture[stage] = texture;
if (!texture)
return true;
else if (texture->getDriverType() != EDT_OGLES2)
{
CurrentTexture[stage] = 0;
os::Printer::log("Fatal Error: Tried to set a texture not owned by this driver.", ELL_ERROR);
return false;
}
return true;
}
//! disables all textures beginning with the optional fromStage parameter.
bool COGLES2Driver::disableTextures(u32 fromStage)
{
bool result = true;
for (u32 i = fromStage; i < MaxTextureUnits; ++i)
result &= setActiveTexture(i, 0);
return result;
}
//! creates a matrix in supplied GLfloat array to pass to OGLES1
inline void COGLES2Driver::createGLMatrix(float gl_matrix[16], const core::matrix4& m)
{
memcpy(gl_matrix, m.pointer(), 16 * sizeof(f32));
}
//! creates a opengltexturematrix from a D3D style texture matrix
inline void COGLES2Driver::createGLTextureMatrix(float *o, const core::matrix4& m)
{
o[0] = m[0];
o[1] = m[1];
o[2] = 0.f;
o[3] = 0.f;
o[4] = m[4];
o[5] = m[5];
o[6] = 0.f;
o[7] = 0.f;
o[8] = 0.f;
o[9] = 0.f;
o[10] = 1.f;
o[11] = 0.f;
o[12] = m[8];
o[13] = m[9];
o[14] = 0.f;
o[15] = 1.f;
}
//! returns a device dependent texture from a software surface (IImage)
video::ITexture* COGLES2Driver::createDeviceDependentTexture(IImage* surface, const io::path& name, void* mipmapData)
{
return new COGLES2Texture(surface, name, this);
}
//! Sets a material.
void COGLES2Driver::setMaterial(const SMaterial& material)
{
Material = material;
OverrideMaterial.apply(Material);
for (u32 i = 0; i < MaxTextureUnits; ++i)
setActiveTexture(i, material.getTexture(i));
}
//! prints error if an error happened.
bool COGLES2Driver::testGLError()
{
#ifdef _DEBUG
GLenum g = glGetError();
switch (g)
{
case GL_NO_ERROR:
return false;
case GL_INVALID_ENUM:
os::Printer::log("GL_INVALID_ENUM", ELL_ERROR);
break;
case GL_INVALID_VALUE:
os::Printer::log("GL_INVALID_VALUE", ELL_ERROR);
break;
case GL_INVALID_OPERATION:
os::Printer::log("GL_INVALID_OPERATION", ELL_ERROR);
break;
case GL_OUT_OF_MEMORY:
os::Printer::log("GL_OUT_OF_MEMORY", ELL_ERROR);
break;
};
return true;
#else
return false;
#endif
}
//! prints error if an error happened.
bool COGLES2Driver::testEGLError()
{
#if defined(EGL_VERSION_1_0) && defined(_DEBUG)
EGLint g = eglGetError();
switch (g)
{
case EGL_SUCCESS:
return false;
case EGL_NOT_INITIALIZED :
os::Printer::log("Not Initialized", ELL_ERROR);
break;
case EGL_BAD_ACCESS:
os::Printer::log("Bad Access", ELL_ERROR);
break;
case EGL_BAD_ALLOC:
os::Printer::log("Bad Alloc", ELL_ERROR);
break;
case EGL_BAD_ATTRIBUTE:
os::Printer::log("Bad Attribute", ELL_ERROR);
break;
case EGL_BAD_CONTEXT:
os::Printer::log("Bad Context", ELL_ERROR);
break;
case EGL_BAD_CONFIG:
os::Printer::log("Bad Config", ELL_ERROR);
break;
case EGL_BAD_CURRENT_SURFACE:
os::Printer::log("Bad Current Surface", ELL_ERROR);
break;
case EGL_BAD_DISPLAY:
os::Printer::log("Bad Display", ELL_ERROR);
break;
case EGL_BAD_SURFACE:
os::Printer::log("Bad Surface", ELL_ERROR);
break;
case EGL_BAD_MATCH:
os::Printer::log("Bad Match", ELL_ERROR);
break;
case EGL_BAD_PARAMETER:
os::Printer::log("Bad Parameter", ELL_ERROR);
break;
case EGL_BAD_NATIVE_PIXMAP:
os::Printer::log("Bad Native Pixmap", ELL_ERROR);
break;
case EGL_BAD_NATIVE_WINDOW:
os::Printer::log("Bad Native Window", ELL_ERROR);
break;
case EGL_CONTEXT_LOST:
os::Printer::log("Context Lost", ELL_ERROR);
break;
};
return true;
#else
return false;
#endif
}
void COGLES2Driver::setRenderStates3DMode()
{
if (CurrentRenderMode != ERM_3D)
{
// Reset Texture Stages
BridgeCalls->setBlend(false);
BridgeCalls->setBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
ResetRenderStates = true;
}
if (ResetRenderStates || LastMaterial != Material)
{
// unset old material
if (LastMaterial.MaterialType != Material.MaterialType &&
static_cast<u32>(LastMaterial.MaterialType) < MaterialRenderers.size())
MaterialRenderers[LastMaterial.MaterialType].Renderer->OnUnsetMaterial();
// set new material.
if (static_cast<u32>(Material.MaterialType) < MaterialRenderers.size())
MaterialRenderers[Material.MaterialType].Renderer->OnSetMaterial(
Material, LastMaterial, ResetRenderStates, this);
LastMaterial = Material;
ResetRenderStates = false;
}
if (static_cast<u32>(Material.MaterialType) < MaterialRenderers.size())
MaterialRenderers[Material.MaterialType].Renderer->OnRender(this, video::EVT_STANDARD);
CurrentRenderMode = ERM_3D;
}
//! Can be called by an IMaterialRenderer to make its work easier.
void COGLES2Driver::setBasicRenderStates(const SMaterial& material, const SMaterial& lastmaterial, bool resetAllRenderStates)
{
// ZBuffer
if (resetAllRenderStates || lastmaterial.ZBuffer != material.ZBuffer)
{
switch (material.ZBuffer)
{
case ECFN_NEVER: // it will be ECFN_DISABLED after merge
BridgeCalls->setDepthTest(false);
break;
case ECFN_LESSEQUAL:
BridgeCalls->setDepthTest(true);
BridgeCalls->setDepthFunc(GL_LEQUAL);
break;
case ECFN_EQUAL:
BridgeCalls->setDepthTest(true);
BridgeCalls->setDepthFunc(GL_EQUAL);
break;
case ECFN_LESS:
BridgeCalls->setDepthTest(true);
BridgeCalls->setDepthFunc(GL_LESS);
break;
case ECFN_NOTEQUAL:
BridgeCalls->setDepthTest(true);
BridgeCalls->setDepthFunc(GL_NOTEQUAL);
break;
case ECFN_GREATEREQUAL:
BridgeCalls->setDepthTest(true);
BridgeCalls->setDepthFunc(GL_GEQUAL);
break;
case ECFN_GREATER:
BridgeCalls->setDepthTest(true);
BridgeCalls->setDepthFunc(GL_GREATER);
break;
case ECFN_ALWAYS:
BridgeCalls->setDepthTest(true);
BridgeCalls->setDepthFunc(GL_ALWAYS);
break;
/*case ECFN_NEVER:
BridgeCalls->setDepthTest(true);
BridgeCalls->setDepthFunc(GL_NEVER);
break;*/
}
}
// ZWrite
// if (resetAllRenderStates || lastmaterial.ZWriteEnable != material.ZWriteEnable)
{
if (material.ZWriteEnable && (AllowZWriteOnTransparent || !material.isTransparent()))
BridgeCalls->setDepthMask(true);
else
BridgeCalls->setDepthMask(false);
}
// Back face culling
if (resetAllRenderStates || (lastmaterial.FrontfaceCulling != material.FrontfaceCulling) || (lastmaterial.BackfaceCulling != material.BackfaceCulling))
{
if ((material.FrontfaceCulling) && (material.BackfaceCulling))
{
BridgeCalls->setCullFaceFunc(GL_FRONT_AND_BACK);
BridgeCalls->setCullFace(true);
}
else
if (material.BackfaceCulling)
{
BridgeCalls->setCullFaceFunc(GL_BACK);
BridgeCalls->setCullFace(true);
}
else
if (material.FrontfaceCulling)
{
BridgeCalls->setCullFaceFunc(GL_FRONT);
BridgeCalls->setCullFace(true);
}
else
BridgeCalls->setCullFace(false);
}
// Color Mask
if (resetAllRenderStates || lastmaterial.ColorMask != material.ColorMask)
{
glColorMask(
(material.ColorMask & ECP_RED)?GL_TRUE:GL_FALSE,
(material.ColorMask & ECP_GREEN)?GL_TRUE:GL_FALSE,
(material.ColorMask & ECP_BLUE)?GL_TRUE:GL_FALSE,
(material.ColorMask & ECP_ALPHA)?GL_TRUE:GL_FALSE);
}
// Blend operation
if (resetAllRenderStates|| lastmaterial.BlendOperation != material.BlendOperation)
{
if (material.BlendOperation==EBO_NONE)
BridgeCalls->setBlend(false);
else
{
BridgeCalls->setBlend(true);
switch (material.BlendOperation)
{
case EBO_ADD:
glBlendEquation(GL_FUNC_ADD);
break;
case EBO_SUBTRACT:
glBlendEquation(GL_FUNC_SUBTRACT);
break;
case EBO_REVSUBTRACT:
glBlendEquation(GL_FUNC_REVERSE_SUBTRACT);
break;
default:
break;
}
}
}
// Anti aliasing
if (resetAllRenderStates || lastmaterial.AntiAliasing != material.AntiAliasing)
{
if (material.AntiAliasing & EAAM_ALPHA_TO_COVERAGE)
glEnable(GL_SAMPLE_ALPHA_TO_COVERAGE);
else if (lastmaterial.AntiAliasing & EAAM_ALPHA_TO_COVERAGE)
glDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);
}
// Texture parameters
setTextureRenderStates(material, resetAllRenderStates);
}
//! Compare in SMaterial doesn't check texture parameters, so we should call this on each OnRender call.
void COGLES2Driver::setTextureRenderStates(const SMaterial& material, bool resetAllRenderstates)
{
// Set textures to TU/TIU and apply filters to them
for (s32 i = MaxTextureUnits-1; i>= 0; --i)
{
const COGLES2Texture* tmpTexture = static_cast<const COGLES2Texture*>(CurrentTexture[i]);
if (CurrentTexture[i])
BridgeCalls->setTexture(i);
else
continue;
if(resetAllRenderstates)
tmpTexture->getStatesCache().IsCached = false;
if(!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].BilinearFilter != tmpTexture->getStatesCache().BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != tmpTexture->getStatesCache().TrilinearFilter)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
tmpTexture->getStatesCache().BilinearFilter = material.TextureLayer[i].BilinearFilter;
tmpTexture->getStatesCache().TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
}
if (material.UseMipMaps && CurrentTexture[i]->hasMipMaps())
{
if(!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].BilinearFilter != tmpTexture->getStatesCache().BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != tmpTexture->getStatesCache().TrilinearFilter || !tmpTexture->getStatesCache().MipMapStatus)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
material.TextureLayer[i].TrilinearFilter ? GL_LINEAR_MIPMAP_LINEAR :
material.TextureLayer[i].BilinearFilter ? GL_LINEAR_MIPMAP_NEAREST :
GL_NEAREST_MIPMAP_NEAREST);
tmpTexture->getStatesCache().BilinearFilter = material.TextureLayer[i].BilinearFilter;
tmpTexture->getStatesCache().TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
tmpTexture->getStatesCache().MipMapStatus = true;
}
}
else
{
if(!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].BilinearFilter != tmpTexture->getStatesCache().BilinearFilter ||
material.TextureLayer[i].TrilinearFilter != tmpTexture->getStatesCache().TrilinearFilter || tmpTexture->getStatesCache().MipMapStatus)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
(material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter) ? GL_LINEAR : GL_NEAREST);
tmpTexture->getStatesCache().BilinearFilter = material.TextureLayer[i].BilinearFilter;
tmpTexture->getStatesCache().TrilinearFilter = material.TextureLayer[i].TrilinearFilter;
tmpTexture->getStatesCache().MipMapStatus = false;
}
}
#ifdef GL_EXT_texture_filter_anisotropic
if (FeatureAvailable[IRR_EXT_texture_filter_anisotropic] &&
(!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].AnisotropicFilter != tmpTexture->getStatesCache().AnisotropicFilter))
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT,
material.TextureLayer[i].AnisotropicFilter>1 ? core::min_(MaxAnisotropy, material.TextureLayer[i].AnisotropicFilter) : 1);
tmpTexture->getStatesCache().AnisotropicFilter = material.TextureLayer[i].AnisotropicFilter;
}
#endif
if(!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].TextureWrapU != tmpTexture->getStatesCache().WrapU)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, getTextureWrapMode(material.TextureLayer[i].TextureWrapU));
tmpTexture->getStatesCache().WrapU = material.TextureLayer[i].TextureWrapU;
}
if(!tmpTexture->getStatesCache().IsCached || material.TextureLayer[i].TextureWrapV != tmpTexture->getStatesCache().WrapV)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, getTextureWrapMode(material.TextureLayer[i].TextureWrapV));
tmpTexture->getStatesCache().WrapV = material.TextureLayer[i].TextureWrapV;
}
tmpTexture->getStatesCache().IsCached = true;
}
}
// Get OpenGL ES2.0 texture wrap mode from Irrlicht wrap mode.
GLint COGLES2Driver::getTextureWrapMode(u8 clamp) const
{
switch (clamp)
{
case ETC_CLAMP:
case ETC_CLAMP_TO_EDGE:
case ETC_CLAMP_TO_BORDER:
return GL_CLAMP_TO_EDGE;
case ETC_MIRROR:
return GL_REPEAT;
default:
return GL_REPEAT;
}
}
//! sets the needed renderstates
void COGLES2Driver::setRenderStates2DMode(bool alpha, bool texture, bool alphaChannel)
{
if (CurrentRenderMode != ERM_2D || Transformation3DChanged)
{
// unset last 3d material
if (CurrentRenderMode == ERM_3D)
{
if (static_cast<u32>(LastMaterial.MaterialType) < MaterialRenderers.size())
MaterialRenderers[LastMaterial.MaterialType].Renderer->OnUnsetMaterial();
}
//TwoDRenderer->useProgram(); //Fixed Pipeline Shader needed to render 2D
if (Transformation3DChanged)
{
const core::dimension2d<u32>& renderTargetSize = getCurrentRenderTargetSize();
core::matrix4 m(core::matrix4::EM4CONST_NOTHING);
m.buildProjectionMatrixOrthoLH(f32(renderTargetSize.Width), f32(-(s32)(renderTargetSize.Height)), -1.0f, 1.0f);
m.setTranslation(core::vector3df(-1,1,0));
//TwoDRenderer->setOrthoMatrix(m);
// Make sure we set first texture matrix
BridgeCalls->setActiveTexture(GL_TEXTURE0);
Transformation3DChanged = false;
}
if (!OverrideMaterial2DEnabled)
{
setBasicRenderStates(InitMaterial2D, LastMaterial, true);
LastMaterial = InitMaterial2D;
}
BridgeCalls->setBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
if (OverrideMaterial2DEnabled)
{
OverrideMaterial2D.Lighting=false;
setBasicRenderStates(OverrideMaterial2D, LastMaterial, false);
LastMaterial = OverrideMaterial2D;
}
// no alphaChannel without texture
alphaChannel &= texture;
if (alphaChannel || alpha)
{
BridgeCalls->setBlend(true);
//TwoDRenderer->useAlphaTest(true);
//TwoDRenderer->setAlphaTestValue(0.f);
}
else
{
BridgeCalls->setBlend(false);
//TwoDRenderer->useAlphaTest(false);
}
if (texture)
{
if (OverrideMaterial2DEnabled)
setTextureRenderStates(OverrideMaterial2D, false);
else
setTextureRenderStates(InitMaterial2D, false);
Material.setTexture(0, const_cast<video::ITexture*>(CurrentTexture[0]));
setTransform(ETS_TEXTURE_0, core::IdentityMatrix);
// Due to the transformation change, the previous line would call a reset each frame
// but we can safely reset the variable as it was false before
Transformation3DChanged=false;
}
CurrentRenderMode = ERM_2D;
}
//! \return Returns the name of the video driver.
const wchar_t* COGLES2Driver::getName() const
{
return Name.c_str();
}
//! deletes all dynamic lights there are
void COGLES2Driver::deleteAllDynamicLights()
{
RequestedLights.clear();
CNullDriver::deleteAllDynamicLights();
}
//! adds a dynamic light
s32 COGLES2Driver::addDynamicLight(const SLight& light)
{
CNullDriver::addDynamicLight(light);
RequestedLights.push_back(RequestedLight(light));
u32 newLightIndex = RequestedLights.size() - 1;
return (s32)newLightIndex;
}
//! 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
void COGLES2Driver::turnLightOn(s32 lightIndex, bool turnOn)
{
if (lightIndex < 0 || lightIndex >= (s32)RequestedLights.size())
return;
RequestedLight & requestedLight = RequestedLights[lightIndex];
requestedLight.DesireToBeOn = turnOn;
}
//! returns the maximal amount of dynamic lights the device can handle
u32 COGLES2Driver::getMaximalDynamicLightAmount() const
{
return MaxLights;
}
//! Sets the dynamic ambient light color.
void COGLES2Driver::setAmbientLight(const SColorf& color)
{
AmbientLight = color;
}
//! returns the dynamic ambient light color.
const SColorf& COGLES2Driver::getAmbientLight() const
{
return AmbientLight;
}
// this code was sent in by Oliver Klems, thank you
void COGLES2Driver::setViewPort(const core::rect<s32>& area)
{
core::rect<s32> vp = area;
core::rect<s32> rendert(0, 0, getCurrentRenderTargetSize().Width, getCurrentRenderTargetSize().Height);
vp.clipAgainst(rendert);
if (vp.getHeight() > 0 && vp.getWidth() > 0)
{
glViewport(vp.UpperLeftCorner.X,
getCurrentRenderTargetSize().Height - vp.UpperLeftCorner.Y - vp.getHeight(),
vp.getWidth(), vp.getHeight());
}
ViewPort = vp;
testGLError();
}
//! Draws a shadow volume into the stencil buffer.
void COGLES2Driver::drawStencilShadowVolume(const core::vector3df* triangles, s32 count, bool zfail)
{
if (!StencilBuffer || !count)
return;
// unset last 3d material
if (CurrentRenderMode == ERM_3D &&
static_cast<u32>(Material.MaterialType) < MaterialRenderers.size())
{
MaterialRenderers[Material.MaterialType].Renderer->OnUnsetMaterial();
ResetRenderStates = true;
}
// store current OGLES state
const GLboolean cullFaceEnabled = glIsEnabled(GL_CULL_FACE);
GLint cullFaceMode;
glGetIntegerv(GL_CULL_FACE_MODE, &cullFaceMode);
GLint depthFunc;
glGetIntegerv(GL_DEPTH_FUNC, &depthFunc);
GLboolean depthMask;
glGetBooleanv(GL_DEPTH_WRITEMASK, &depthMask);
glDepthFunc(GL_LEQUAL);
glDepthMask(GL_FALSE); // no depth buffer writing
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); // no color buffer drawing
glEnable(GL_STENCIL_TEST);
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(0.0f, 1.0f);
glEnableVertexAttribArray(EVA_POSITION);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(core::vector3df), &triangles[0]);
glStencilMask(~0);
glStencilFunc(GL_ALWAYS, 0, ~0);
GLenum decr = GL_DECR;
GLenum incr = GL_INCR;
#if defined(GL_OES_stencil_wrap)
if (FeatureAvailable[IRR_OES_stencil_wrap])
{
decr = GL_DECR_WRAP_OES;
incr = GL_INCR_WRAP_OES;
}
#endif
glEnable(GL_CULL_FACE);
if (!zfail)
{
// ZPASS Method
glCullFace(GL_BACK);
glStencilOp(GL_KEEP, GL_KEEP, incr);
glDrawArrays(GL_TRIANGLES, 0, count);
glCullFace(GL_FRONT);
glStencilOp(GL_KEEP, GL_KEEP, decr);
glDrawArrays(GL_TRIANGLES, 0, count);
}
else
{
// ZFAIL Method
glStencilOp(GL_KEEP, incr, GL_KEEP);
glCullFace(GL_FRONT);
glDrawArrays(GL_TRIANGLES, 0, count);
glStencilOp(GL_KEEP, decr, GL_KEEP);
glCullFace(GL_BACK);
glDrawArrays(GL_TRIANGLES, 0, count);
}
glDisableVertexAttribArray(EVA_POSITION);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glDisable(GL_STENCIL_TEST);
if (cullFaceEnabled)
glEnable(GL_CULL_FACE);
else
glDisable(GL_CULL_FACE);
glCullFace(cullFaceMode);
glDepthFunc(depthFunc);
glDepthMask(depthMask);
testGLError();
}
void COGLES2Driver::drawStencilShadow(bool clearStencilBuffer,
video::SColor leftUpEdge, video::SColor rightUpEdge,
video::SColor leftDownEdge, video::SColor rightDownEdge)
{
if (!StencilBuffer)
return;
disableTextures();
// store attributes
GLboolean depthMask;
glGetBooleanv(GL_DEPTH_WRITEMASK, &depthMask);
// GLint shadeModel;
//TODO : OpenGL ES 2.0 Port glGetIntegerv
//glGetIntegerv(GL_SHADE_MODEL, &shadeModel);
glDepthMask(GL_FALSE);
//TODO : OpenGL ES 2.0 Port glShadeModel
//glShadeModel(GL_FLAT);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glEnable(GL_STENCIL_TEST);
glStencilFunc(GL_NOTEQUAL, 0, ~0);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
// draw a shadow rectangle covering the entire screen using stencil buffer
//Wrapper->glMatrixMode(GL_MODELVIEW);
//TODO : OpenGL ES 2.0 Port glPushMatrix
//glPushMatrix();
//Wrapper->glLoadIdentity();
//Wrapper->glMatrixMode(GL_PROJECTION);
//TODO : OpenGL ES 2.0 Port glPushMatrix
//glPushMatrix();
//Wrapper->glLoadIdentity();
u16 indices[] = {0, 1, 2, 3};
S3DVertex vertices[4];
vertices[0] = S3DVertex(-1.f, -1.f, 0.9f, 0, 0, 1, leftDownEdge, 0, 0);
vertices[1] = S3DVertex(-1.f, 1.f, 0.9f, 0, 0, 1, leftUpEdge, 0, 0);
vertices[2] = S3DVertex(1.f, 1.f, 0.9f, 0, 0, 1, rightUpEdge, 0, 0);
vertices[3] = S3DVertex(1.f, -1.f, 0.9f, 0, 0, 1, rightDownEdge, 0, 0);
drawVertexPrimitiveList2d3d(vertices, 4, indices, 2, video::EVT_STANDARD, scene::EPT_TRIANGLE_FAN, EIT_16BIT, false);
if (clearStencilBuffer)
glClear(GL_STENCIL_BUFFER_BIT);
// restore settings
//TODO : OpenGL ES 2.0 Port glPopMatrix
//glPopMatrix();
//Wrapper->glMatrixMode(GL_MODELVIEW);
//TODO : OpenGL ES 2.0 Port glPopMatrix
//glPopMatrix();
glDisable(GL_STENCIL_TEST);
glDepthMask(depthMask);
//TODO : OpenGL ES 2.0 Port glShadeModel
//glShadeModel(shadeModel);
}
//! Draws a 3d line.
void COGLES2Driver::draw3DLine(const core::vector3df& start,
const core::vector3df& end, SColor color)
{
setRenderStates3DMode();
u16 indices[] = {0, 1};
S3DVertex vertices[2];
vertices[0] = S3DVertex(start.X, start.Y, start.Z, 0, 0, 1, color, 0, 0);
vertices[1] = S3DVertex(end.X, end.Y, end.Z, 0, 0, 1, color, 0, 0);
drawVertexPrimitiveList2d3d(vertices, 2, indices, 1, video::EVT_STANDARD, scene::EPT_LINES);
}
//! Only used by the internal engine. Used to notify the driver that
//! the window was resized.
void COGLES2Driver::OnResize(const core::dimension2d<u32>& size)
{
CNullDriver::OnResize(size);
glViewport(0, 0, size.Width, size.Height);
testGLError();
}
//! Returns type of video driver
E_DRIVER_TYPE COGLES2Driver::getDriverType() const
{
return EDT_OGLES2;
}
//! returns color format
ECOLOR_FORMAT COGLES2Driver::getColorFormat() const
{
return ColorFormat;
}
//! Sets a vertex shader constant.
void COGLES2Driver::setVertexShaderConstant(const f32* data, s32 startRegister, s32 constantAmount)
{
#ifdef GL_vertex_program
for (s32 i = 0; i < constantAmount; ++i)
glProgramLocalParameter4fv(GL_VERTEX_PROGRAM, startRegister + i, &data[i*4]);
#endif
}
//! Sets a pixel shader constant.
void COGLES2Driver::setPixelShaderConstant(const f32* data, s32 startRegister, s32 constantAmount)
{
#ifdef GL_fragment_program
for (s32 i = 0; i < constantAmount; ++i)
glProgramLocalParameter4fv(GL_FRAGMENT_PROGRAM, startRegister + i, &data[i*4]);
#endif
}
//! Sets a constant for the vertex shader based on a name.
bool COGLES2Driver::setVertexShaderConstant(const c8* name, const f32* floats, int count)
{
//pass this along, as in GLSL the same routine is used for both vertex and fragment shaders
return setPixelShaderConstant(name, floats, count);
}
//! Int interface for the above.
bool COGLES2Driver::setVertexShaderConstant(const c8* name, const s32* ints, int count)
{
return setPixelShaderConstant(name, ints, count);
}
//! Sets a constant for the pixel shader based on a name.
bool COGLES2Driver::setPixelShaderConstant(const c8* name, const f32* floats, int count)
{
os::Printer::log("Error: Please call services->setPixelShaderConstant(), not VideoDriver->setPixelShaderConstant().");
return false;
}
//! Int interface for the above.
bool COGLES2Driver::setPixelShaderConstant(const c8* name, const s32* ints, int count)
{
os::Printer::log("Error: Please call services->setPixelShaderConstant(), not VideoDriver->setPixelShaderConstant().");
return false;
}
//! Sets a vertex pointer the vertex shader based on a name.
bool COGLES2Driver::setVertexShaderPointer(const c8*, const void*, s32, bool, u16)
{
os::Printer::log("Error: Please call services->setVertexPointer(), not VideoDriver->setVertexPointer().");
return false;
}
//! Adds a new material renderer to the VideoDriver, using pixel and/or
//! vertex shaders to render geometry.
s32 COGLES2Driver::addShaderMaterial(const c8* vertexShaderProgram,
const c8* pixelShaderProgram,
IShaderConstantSetCallBack* callback,
E_MATERIAL_TYPE baseMaterial, s32 userData)
{
os::Printer::log("No shader support.");
return -1;
}
//! Adds a new material renderer to the VideoDriver, using GLSL to render geometry.
s32 COGLES2Driver::addHighLevelShaderMaterial(
const c8* vertexShaderProgram,
const c8* vertexShaderEntryPointName,
E_VERTEX_SHADER_TYPE vsCompileTarget,
const c8* pixelShaderProgram,
const c8* pixelShaderEntryPointName,
E_PIXEL_SHADER_TYPE psCompileTarget,
const c8* geometryShaderProgram,
const c8* geometryShaderEntryPointName,
E_GEOMETRY_SHADER_TYPE gsCompileTarget,
scene::E_PRIMITIVE_TYPE inType,
scene::E_PRIMITIVE_TYPE outType,
u32 verticesOut,
IShaderConstantSetCallBack* callback,
E_MATERIAL_TYPE baseMaterial,
s32 userData, E_GPU_SHADING_LANGUAGE shadingLang)
{
s32 nr = -1;
COGLES2MaterialRenderer* r = new COGLES2MaterialRenderer(
this, nr, vertexShaderProgram,
pixelShaderProgram,
callback, baseMaterial, userData);
r->drop();
return nr;
}
//! Returns a pointer to the IVideoDriver interface. (Implementation for
//! IMaterialRendererServices)
IVideoDriver* COGLES2Driver::getVideoDriver()
{
return this;
}
//! Returns pointer to the IGPUProgrammingServices interface.
IGPUProgrammingServices* COGLES2Driver::getGPUProgrammingServices()
{
return this;
}
ITexture* COGLES2Driver::addRenderTargetTexture(
const core::dimension2d<u32>& size,
const io::path& name, const ECOLOR_FORMAT format)
{
//disable mip-mapping
const bool generateMipLevels = getTextureCreationFlag(ETCF_CREATE_MIP_MAPS);
setTextureCreationFlag(ETCF_CREATE_MIP_MAPS, false);
video::ITexture* rtt = 0;
// if driver supports FrameBufferObjects, use them
if (queryFeature(EVDF_FRAMEBUFFER_OBJECT))
{
rtt = new COGLES2FBOTexture(size, name, this, format);
if (rtt)
{
bool success = false;
addTexture(rtt);
ITexture* tex = createDepthTexture(rtt);
if (tex)
{
success = static_cast<video::COGLES2FBODepthTexture*>(tex)->attach(rtt);
if (!success)
{
removeDepthTexture(tex);
}
tex->drop();
}
rtt->drop();
if (!success)
{
removeTexture(rtt);
rtt=0;
}
}
}
else
{
// the simple texture is only possible for size <= screensize
// we try to find an optimal size with the original constraints
core::dimension2du destSize(core::min_(size.Width, ScreenSize.Width), core::min_(size.Height, ScreenSize.Height));
destSize = destSize.getOptimalSize((size == size.getOptimalSize()), false, false);
rtt = addTexture(destSize, name, ECF_A8R8G8B8);
if (rtt)
static_cast<video::COGLES2Texture*>(rtt)->setIsRenderTarget(true);
}
//restore mip-mapping
setTextureCreationFlag(ETCF_CREATE_MIP_MAPS, generateMipLevels);
return rtt;
}
//! Returns the maximum amount of primitives
u32 COGLES2Driver::getMaximalPrimitiveCount() const
{
return 65535;
}
//! set or reset render target
bool COGLES2Driver::setRenderTarget(video::ITexture* texture, bool clearBackBuffer,
bool clearZBuffer, SColor color)
{
// check for right driver type
if (texture && texture->getDriverType() != EDT_OGLES2)
{
os::Printer::log("Fatal Error: Tried to set a texture not owned by this driver.", ELL_ERROR);
return false;
}
// check if we should set the previous RT back
setActiveTexture(0, 0);
ResetRenderStates = true;
if (RenderTargetTexture != 0)
{
RenderTargetTexture->unbindRTT();
}
if (texture)
{
// we want to set a new target. so do this.
RenderTargetTexture = static_cast<COGLES2Texture*>(texture);
RenderTargetTexture->bindRTT();
CurrentRendertargetSize = texture->getSize();
}
else
{
glViewport(0, 0, ScreenSize.Width, ScreenSize.Height);
RenderTargetTexture = 0;
CurrentRendertargetSize = core::dimension2d<u32>(0, 0);
}
GLbitfield mask = 0;
if (clearBackBuffer)
{
const f32 inv = 1.0f / 255.0f;
glClearColor(color.getRed() * inv, color.getGreen() * inv,
color.getBlue() * inv, color.getAlpha() * inv);
mask |= GL_COLOR_BUFFER_BIT;
}
if (clearZBuffer)
{
glDepthMask(GL_TRUE);
LastMaterial.ZWriteEnable = true;
mask |= GL_DEPTH_BUFFER_BIT;
}
glClear(mask);
testGLError();
return true;
}
// returns the current size of the screen or rendertarget
const core::dimension2d<u32>& COGLES2Driver::getCurrentRenderTargetSize() const
{
if (CurrentRendertargetSize.Width == 0)
return ScreenSize;
else
return CurrentRendertargetSize;
}
//! Clears the ZBuffer.
void COGLES2Driver::clearZBuffer()
{
GLboolean enabled = GL_TRUE;
glGetBooleanv(GL_DEPTH_WRITEMASK, &enabled);
glDepthMask(GL_TRUE);
glClear(GL_DEPTH_BUFFER_BIT);
glDepthMask(enabled);
testGLError();
}
//! Returns an image created from the last rendered frame.
// We want to read the front buffer to get the latest render finished.
// This is not possible under ogl-es, though, so one has to call this method
// outside of the render loop only.
IImage* COGLES2Driver::createScreenShot(video::ECOLOR_FORMAT format, video::E_RENDER_TARGET target)
{
if (target==video::ERT_MULTI_RENDER_TEXTURES || target==video::ERT_RENDER_TEXTURE || target==video::ERT_STEREO_BOTH_BUFFERS)
return 0;
GLint internalformat = GL_RGBA;
GLint type = GL_UNSIGNED_BYTE;
{
// glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT, &internalformat);
// glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE, &type);
// there's a format we don't support ATM
if (GL_UNSIGNED_SHORT_4_4_4_4 == type)
{
internalformat = GL_RGBA;
type = GL_UNSIGNED_BYTE;
}
}
IImage* newImage = 0;
if (GL_RGBA == internalformat)
{
if (GL_UNSIGNED_BYTE == type)
newImage = new CImage(ECF_A8R8G8B8, ScreenSize);
else
newImage = new CImage(ECF_A1R5G5B5, ScreenSize);
}
else
{
if (GL_UNSIGNED_BYTE == type)
newImage = new CImage(ECF_R8G8B8, ScreenSize);
else
newImage = new CImage(ECF_R5G6B5, ScreenSize);
}
if (!newImage)
return 0;
u8* pixels = static_cast<u8*>(newImage->lock());
if (!pixels)
{
newImage->unlock();
newImage->drop();
return 0;
}
glReadPixels(0, 0, ScreenSize.Width, ScreenSize.Height, internalformat, type, pixels);
testGLError();
// opengl images are horizontally flipped, so we have to fix that here.
const s32 pitch = newImage->getPitch();
u8* p2 = pixels + (ScreenSize.Height - 1) * pitch;
u8* tmpBuffer = new u8[pitch];
for (u32 i = 0; i < ScreenSize.Height; i += 2)
{
memcpy(tmpBuffer, pixels, pitch);
memcpy(pixels, p2, pitch);
memcpy(p2, tmpBuffer, pitch);
pixels += pitch;
p2 -= pitch;
}
delete [] tmpBuffer;
newImage->unlock();
if (testGLError())
{
newImage->drop();
return 0;
}
testGLError();
return newImage;
}
//! get depth texture for the given render target texture
ITexture* COGLES2Driver::createDepthTexture(ITexture* texture, bool shared)
{
if ((texture->getDriverType() != EDT_OGLES2) || (!texture->isRenderTarget()))
return 0;
COGLES2Texture* tex = static_cast<COGLES2Texture*>(texture);
if (!tex->isFrameBufferObject())
return 0;
if (shared)
{
for (u32 i = 0; i < DepthTextures.size(); ++i)
{
if (DepthTextures[i]->getSize() == texture->getSize())
{
DepthTextures[i]->grab();
return DepthTextures[i];
}
}
DepthTextures.push_back(new COGLES2FBODepthTexture(texture->getSize(), "depth1", this));
return DepthTextures.getLast();
}
return (new COGLES2FBODepthTexture(texture->getSize(), "depth1", this));
}
void COGLES2Driver::removeDepthTexture(ITexture* texture)
{
for (u32 i = 0; i < DepthTextures.size(); ++i)
{
if (texture == DepthTextures[i])
{
DepthTextures.erase(i);
return;
}
}
}
void COGLES2Driver::deleteFramebuffers(s32 n, const u32 *framebuffers)
{
glDeleteFramebuffers(n, framebuffers);
}
void COGLES2Driver::deleteRenderbuffers(s32 n, const u32 *renderbuffers)
{
glDeleteRenderbuffers(n, renderbuffers);
}
//! Set/unset a clipping plane.
bool COGLES2Driver::setClipPlane(u32 index, const core::plane3df& plane, bool enable)
{
if (index >= UserClipPlane.size())
UserClipPlane.push_back(SUserClipPlane());
UserClipPlane[index].Plane = plane;
UserClipPlane[index].Enabled = enable;
return true;
}
//! Enable/disable a clipping plane.
void COGLES2Driver::enableClipPlane(u32 index, bool enable)
{
if (index >= MaxUserClipPlanes)
return;
UserClipPlane[index].Enabled = enable;
}
//! Get the ClipPlane Count
u32 COGLES2Driver::getClipPlaneCount() const
{
return UserClipPlane.size();
}
const core::plane3df& COGLES2Driver::getClipPlane(irr::u32 index) const
{
if (index < UserClipPlane.size())
return UserClipPlane[index].Plane;
else
return *((core::plane3df*)0);
}
core::dimension2du COGLES2Driver::getMaxTextureSize() const
{
return core::dimension2du(MaxTextureSize, MaxTextureSize);
}
GLenum COGLES2Driver::getGLBlend(E_BLEND_FACTOR factor) const
{
GLenum r = 0;
switch (factor)
{
case EBF_ZERO: r = GL_ZERO; break;
case EBF_ONE: r = GL_ONE; break;
case EBF_DST_COLOR: r = GL_DST_COLOR; break;
case EBF_ONE_MINUS_DST_COLOR: r = GL_ONE_MINUS_DST_COLOR; break;
case EBF_SRC_COLOR: r = GL_SRC_COLOR; break;
case EBF_ONE_MINUS_SRC_COLOR: r = GL_ONE_MINUS_SRC_COLOR; break;
case EBF_SRC_ALPHA: r = GL_SRC_ALPHA; break;
case EBF_ONE_MINUS_SRC_ALPHA: r = GL_ONE_MINUS_SRC_ALPHA; break;
case EBF_DST_ALPHA: r = GL_DST_ALPHA; break;
case EBF_ONE_MINUS_DST_ALPHA: r = GL_ONE_MINUS_DST_ALPHA; break;
case EBF_SRC_ALPHA_SATURATE: r = GL_SRC_ALPHA_SATURATE; break;
}
return r;
}
const SMaterial& COGLES2Driver::getCurrentMaterial() const
{
return Material;
}
COGLES2CallBridge* COGLES2Driver::getBridgeCalls() const
{
return BridgeCalls;
}
COGLES2CallBridge::COGLES2CallBridge(COGLES2Driver* driver) : Driver(driver),
BlendSource(GL_ONE), BlendDestination(GL_ZERO), Blend(false),
CullFaceMode(GL_BACK), CullFace(false),
DepthFunc(GL_LESS), DepthMask(true), DepthTest(false),
ActiveTexture(GL_TEXTURE0)
{
// Initial OpenGL values from specification.
for (u32 i = 0; i < MATERIAL_MAX_TEXTURES; ++i)
Texture[i] = 0;
glBlendFunc(GL_ONE, GL_ZERO);
glDisable(GL_BLEND);
glCullFace(GL_BACK);
glDisable(GL_CULL_FACE);
glDepthFunc(GL_LESS);
glDepthMask(GL_TRUE);
glDisable(GL_DEPTH_TEST);
}
void COGLES2CallBridge::setBlendFunc(GLenum source, GLenum destination)
{
if(BlendSource != source || BlendDestination != destination)
{
glBlendFunc(source, destination);
BlendSource = source;
BlendDestination = destination;
}
}
void COGLES2CallBridge::setBlend(bool enable)
{
if(Blend != enable)
{
if (enable)
glEnable(GL_BLEND);
else
glDisable(GL_BLEND);
Blend = enable;
}
}
void COGLES2CallBridge::setCullFaceFunc(GLenum mode)
{
if(CullFaceMode != mode)
{
glCullFace(mode);
CullFaceMode = mode;
}
}
void COGLES2CallBridge::setCullFace(bool enable)
{
if(CullFace != enable)
{
if (enable)
glEnable(GL_CULL_FACE);
else
glDisable(GL_CULL_FACE);
CullFace = enable;
}
}
void COGLES2CallBridge::setDepthFunc(GLenum mode)
{
if(DepthFunc != mode)
{
glDepthFunc(mode);
DepthFunc = mode;
}
}
void COGLES2CallBridge::setDepthMask(bool enable)
{
if(DepthMask != enable)
{
if (enable)
glDepthMask(GL_TRUE);
else
glDepthMask(GL_FALSE);
DepthMask = enable;
}
}
void COGLES2CallBridge::setDepthTest(bool enable)
{
if(DepthTest != enable)
{
if (enable)
glEnable(GL_DEPTH_TEST);
else
glDisable(GL_DEPTH_TEST);
DepthTest = enable;
}
}
void COGLES2CallBridge::setActiveTexture(GLenum texture)
{
if (ActiveTexture != texture)
{
glActiveTexture(texture);
ActiveTexture = texture;
}
}
void COGLES2CallBridge::setTexture(u32 stage)
{
if (stage < MATERIAL_MAX_TEXTURES)
{
if(Texture[stage] != Driver->CurrentTexture[stage])
{
setActiveTexture(GL_TEXTURE0 + stage);
if(Driver->CurrentTexture[stage])
glBindTexture(GL_TEXTURE_2D, static_cast<const COGLES2Texture*>(Driver->CurrentTexture[stage])->getOGLES2TextureName());
Texture[stage] = Driver->CurrentTexture[stage];
}
}
}
} // end namespace
} // end namespace
#endif // _IRR_COMPILE_WITH_OGLES2_
namespace irr
{
namespace video
{
#if !defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_) && (defined(_IRR_COMPILE_WITH_X11_DEVICE_) || defined(_IRR_COMPILE_WITH_SDL_DEVICE_) || defined(_IRR_COMPILE_WITH_WINDOWS_DEVICE_) || defined(_IRR_COMPILE_WITH_CONSOLE_DEVICE_))
IVideoDriver* createOGLES2Driver(const SIrrlichtCreationParameters& params,
video::SExposedVideoData& data, io::IFileSystem* io)
{
#ifdef _IRR_COMPILE_WITH_OGLES2_
return new COGLES2Driver(params, data, io);
#else
return 0;
#endif // _IRR_COMPILE_WITH_OGLES2_
}
#endif
// -----------------------------------
// MACOSX VERSION
// -----------------------------------
#if defined(_IRR_COMPILE_WITH_OSX_DEVICE_)
IVideoDriver* createOGLES2Driver(const SIrrlichtCreationParameters& params,
io::IFileSystem* io, CIrrDeviceMacOSX *device)
{
#ifdef _IRR_COMPILE_WITH_OGLES2_
return new COGLES2Driver(params, io, device);
#else
return 0;
#endif // _IRR_COMPILE_WITH_OGLES2_
}
#endif // _IRR_COMPILE_WITH_OSX_DEVICE_
// -----------------------------------
// IPHONE VERSION
// -----------------------------------
#if defined(_IRR_COMPILE_WITH_IPHONE_DEVICE_)
IVideoDriver* createOGLES2Driver(const SIrrlichtCreationParameters& params,
video::SExposedVideoData& data, io::IFileSystem* io,
CIrrDeviceIPhone* device)
{
#ifdef _IRR_COMPILE_WITH_OGLES2_
return new COGLES2Driver(params, data, io, device);
#else
return 0;
#endif // _IRR_COMPILE_WITH_OGLES2_
}
#endif // _IRR_COMPILE_WITH_IPHONE_DEVICE_
} // end namespace
} // end namespace
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