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Support both OpenGL3 and GLES2 on SDL2

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This commit is contained in:
numzero 2023-03-02 02:42:29 +03:00
parent d6716ec31b
commit 1bbe341daa
2 changed files with 125 additions and 134 deletions
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2
include/EDriverTypes.h
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@ -35,6 +35,8 @@ namespace video
//! WebGL1 friendly subset of OpenGL-ES 2.x driver for Emscripten
EDT_WEBGL1,
EDT_OPENGL3,
//! No driver, just for counting the elements
EDT_COUNT
};

257
source/Irrlicht/CIrrDeviceSDL.cpp
View File

@ -38,18 +38,37 @@ namespace irr
{
#ifdef _IRR_COMPILE_WITH_OPENGL_
IVideoDriver* createOpenGLDriver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
#endif
#ifdef _IRR_COMPILE_WITH_OGLES2_
IVideoDriver* createOGLES2Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
#endif
#ifdef _IRR_COMPILE_WITH_WEBGL1_
IVideoDriver* createWebGL1Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
#else
static IVideoDriver* createOpenGLDriver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager)
{
os::Printer::log("No OpenGL support compiled in.", ELL_ERROR);
return nullptr;
}
#endif
#ifdef ENABLE_OPENGL3
IVideoDriver* createOpenGL3Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
#else
static IVideoDriver* createOpenGL3Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager)
{
os::Printer::log("No OpenGL 3 support compiled in.", ELL_ERROR);
return nullptr;
}
#endif
static IVideoDriver* createOpenGLES2Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager)
{
return createOpenGL3Driver(params, io, contextManager);
}
#ifdef _IRR_COMPILE_WITH_WEBGL1_
IVideoDriver* createWebGL1Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
#else
static IVideoDriver* createWebGL1Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager)
{
os::Printer::log("No WebGL 1 support compiled in.", ELL_ERROR);
return nullptr;
}
#endif
} // end namespace video
@ -236,24 +255,6 @@ CIrrDeviceSDL::CIrrDeviceSDL(const SIrrlichtCreationParameters& param)
// create keymap
createKeyMap();
if (CreationParams.Fullscreen) {
SDL_Flags |= SDL_WINDOW_FULLSCREEN;
} else {
if (Resizable)
SDL_Flags |= SDL_WINDOW_RESIZABLE;
if (CreationParams.WindowMaximized)
SDL_Flags |= SDL_WINDOW_MAXIMIZED;
}
if (CreationParams.DriverType == video::EDT_OPENGL)
{
SDL_Flags |= SDL_WINDOW_OPENGL;
if (!CreationParams.Doublebuffer)
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 0);
}
#ifdef _IRR_EMSCRIPTEN_PLATFORM_
SDL_Flags |= SDL_WINDOW_OPENGL;
#endif //_IRR_EMSCRIPTEN_PLATFORM_
// create window
if (CreationParams.DriverType != video::EDT_NULL)
{
@ -343,6 +344,16 @@ void CIrrDeviceSDL::logAttributes()
bool CIrrDeviceSDL::createWindow()
{
if (CreationParams.Fullscreen) {
SDL_Flags |= SDL_WINDOW_FULLSCREEN;
} else {
if (Resizable)
SDL_Flags |= SDL_WINDOW_RESIZABLE;
if (CreationParams.WindowMaximized)
SDL_Flags |= SDL_WINDOW_MAXIMIZED;
}
SDL_Flags |= SDL_WINDOW_OPENGL;
#ifdef _IRR_EMSCRIPTEN_PLATFORM_
if ( Width != 0 || Height != 0 )
emscripten_set_canvas_size( Width, Height);
@ -389,58 +400,73 @@ bool CIrrDeviceSDL::createWindow()
if ( Close )
return false;
if (CreationParams.DriverType == video::EDT_OPENGL) {
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG | SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG);
if (CreationParams.Bits == 16) {
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 4);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 4);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 4);
SDL_GL_SetAttribute(
SDL_GL_ALPHA_SIZE, CreationParams.WithAlphaChannel ? 1 : 0);
} else {
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
SDL_GL_SetAttribute(
SDL_GL_ALPHA_SIZE, CreationParams.WithAlphaChannel ? 8 : 0);
}
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, CreationParams.ZBufferBits);
if (CreationParams.Doublebuffer)
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, CreationParams.Stencilbuffer ? 8 : 0);
if (CreationParams.Stereobuffer)
SDL_GL_SetAttribute(SDL_GL_STEREO, 1);
if (CreationParams.AntiAlias > 1) {
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, CreationParams.AntiAlias);
}
if (!Window)
Window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
if (!Window && CreationParams.AntiAlias > 1) {
while (--CreationParams.AntiAlias > 1) {
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, CreationParams.AntiAlias);
Window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
if (Window)
break;
}
if (!Window) {
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 0);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 0);
Window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
if (Window)
os::Printer::log("AntiAliasing disabled due to lack of support!");
}
}
switch (CreationParams.DriverType) {
case video::EDT_OPENGL:
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
break;
case video::EDT_OPENGL3:
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
break;
case video::EDT_OGLES1:
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
break;
case video::EDT_OGLES2:
case video::EDT_WEBGL1:
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
break;
default:;
}
if (Window)
{
Context = SDL_GL_CreateContext(Window);
}
} else if (!Window)
#ifdef _DEBUG
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG | SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG);
#endif
if (CreationParams.Bits == 16) {
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, CreationParams.WithAlphaChannel ? 1 : 0);
} else {
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, CreationParams.WithAlphaChannel ? 8 : 0);
}
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, CreationParams.ZBufferBits);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, CreationParams.Doublebuffer);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, CreationParams.Stencilbuffer ? 8 : 0);
SDL_GL_SetAttribute(SDL_GL_STEREO, CreationParams.Stereobuffer);
if (CreationParams.AntiAlias > 1) {
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, CreationParams.AntiAlias);
}
if (!Window)
Window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
if (!Window) {
os::Printer::log("Could not create window...", SDL_GetError(), ELL_WARNING);
}
if (!Window && CreationParams.AntiAlias > 1) {
while (--CreationParams.AntiAlias > 1) {
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, CreationParams.AntiAlias);
Window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
if (Window)
break;
}
if (!Window) {
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 0);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 0);
Window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
if (Window)
os::Printer::log("AntiAliasing disabled due to lack of support!", ELL_WARNING);
}
}
if ( !Window && CreationParams.Doublebuffer)
{
@ -451,7 +477,14 @@ bool CIrrDeviceSDL::createWindow()
}
if ( !Window )
{
os::Printer::log( "Could not initialize display!" );
os::Printer::log("Could not initialize display", SDL_GetError(), ELL_ERROR);
return false;
}
Context = SDL_GL_CreateContext(Window);
if (!Context) {
os::Printer::log("Could not initialize context", SDL_GetError(), ELL_ERROR);
SDL_DestroyWindow(Window);
return false;
}
@ -463,66 +496,22 @@ bool CIrrDeviceSDL::createWindow()
//! create the driver
void CIrrDeviceSDL::createDriver()
{
if (CreationParams.DriverType == video::EDT_NULL) {
VideoDriver = video::createNullDriver(FileSystem, CreationParams.WindowSize);
return;
}
ContextManager = new video::CSDLManager(this);
switch(CreationParams.DriverType)
{
case video::EDT_OPENGL:
#ifdef _IRR_COMPILE_WITH_OPENGL_
ContextManager = new video::CSDLManager(this);
VideoDriver = video::createOpenGL3Driver(CreationParams, FileSystem, ContextManager);
#else
os::Printer::log("No OpenGL support compiled in.", ELL_ERROR);
#endif
break;
case video::EDT_OGLES2:
#if defined(_IRR_COMPILE_WITH_OGLES2_) && defined(_IRR_EMSCRIPTEN_PLATFORM_)
{
video::SExposedVideoData data;
ContextManager = new video::CEGLManager();
ContextManager->initialize(CreationParams, data);
VideoDriver = video::createOGLES2Driver(CreationParams, FileSystem, ContextManager);
}
#else
os::Printer::log("No OpenGL-ES2 support compiled in.", ELL_ERROR);
#endif
break;
case video::EDT_WEBGL1:
#if defined(_IRR_COMPILE_WITH_WEBGL1_) && defined(_IRR_EMSCRIPTEN_PLATFORM_)
{
video::SExposedVideoData data;
ContextManager = new video::CEGLManager();
ContextManager->initialize(CreationParams, data);
VideoDriver = video::createWebGL1Driver(CreationParams, FileSystem, ContextManager);
}
#else
os::Printer::log("No WebGL1 support compiled in.", ELL_ERROR);
#endif
break;
case video::EDT_NULL:
VideoDriver = video::createNullDriver(FileSystem, CreationParams.WindowSize);
break;
default:
os::Printer::log("Unable to create video driver of unknown type.", ELL_ERROR);
break;
}
// In case we got the size from the canvas
if ( VideoDriver && CreationParams.WindowSize.Width == 0 && CreationParams.WindowSize.Height == 0 && Width > 0 && Height > 0 )
{
#ifdef _IRR_EMSCRIPTEN_PLATFORM_
SDL_CreateWindowAndRenderer(Width, Height, SDL_Flags, &Window, &Renderer);
#else //_IRR_EMSCRIPTEN_PLATFORM_
Window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
#endif //_IRR_EMSCRIPTEN_PLATFOR
VideoDriver->OnResize(core::dimension2d<u32>(Width, Height));
case video::EDT_OPENGL: VideoDriver = video::createOpenGLDriver(CreationParams, FileSystem, ContextManager); break;
case video::EDT_OPENGL3: VideoDriver = video::createOpenGL3Driver(CreationParams, FileSystem, ContextManager); break;
case video::EDT_OGLES2: VideoDriver = video::createOpenGLES2Driver(CreationParams, FileSystem, ContextManager); break;
case video::EDT_WEBGL1: VideoDriver = video::createWebGL1Driver(CreationParams, FileSystem, ContextManager); break;
default:;
}
if (!VideoDriver)
os::Printer::log("Could not create video driver", ELL_ERROR);
}