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OpenGL3: new version format

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This commit is contained in:
numzero 2023-04-15 16:52:15 +03:00 committed by sfan5
parent c4ab49201b
commit 1d782702e1
7 changed files with 65 additions and 4 deletions
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14
source/Irrlicht/OpenGL/Common.h
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@ -32,5 +32,19 @@ namespace video
typedef COpenGLCoreRenderTarget<COpenGL3DriverBase, COpenGL3Texture> COpenGL3RenderTarget;
typedef COpenGLCoreCacheHandler<COpenGL3DriverBase, COpenGL3Texture> COpenGL3CacheHandler;
enum class OpenGLSpec: u8 {
Core,
Compat,
ES,
// WebGL, // TODO
};
struct OpenGLVersion {
OpenGLSpec Spec;
u8 Major;
u8 Minor;
u8 Release;
};
}
}

12
source/Irrlicht/OpenGL/Driver.cpp
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@ -203,8 +203,7 @@ COpenGL3DriverBase::~COpenGL3DriverBase()
QuadIndexCount = QuadsIndices.size();
}
bool COpenGL3DriverBase::genericDriverInit(const core::dimension2d<u32>& screenSize, bool stencilBuffer)
{
void COpenGL3DriverBase::initVersion() {
Name = glGetString(GL_VERSION);
printVersion();
@ -212,7 +211,12 @@ COpenGL3DriverBase::~COpenGL3DriverBase()
VendorName = glGetString(GL_VENDOR);
os::Printer::log(VendorName.c_str(), ELL_INFORMATION);
// load extensions
Version = getVersionFromOpenGL();
}
bool COpenGL3DriverBase::genericDriverInit(const core::dimension2d<u32>& screenSize, bool stencilBuffer)
{
initVersion();
initExtensions();
// reset cache handler
@ -231,7 +235,7 @@ COpenGL3DriverBase::~COpenGL3DriverBase()
DriverAttributes->setAttribute("MaxIndices", (s32)MaxIndices);
DriverAttributes->setAttribute("MaxTextureSize", (s32)MaxTextureSize);
DriverAttributes->setAttribute("MaxTextureLODBias", MaxTextureLODBias);
DriverAttributes->setAttribute("Version", Version);
DriverAttributes->setAttribute("Version", 100 * Version.Major + Version.Minor);
DriverAttributes->setAttribute("AntiAlias", AntiAlias);
glPixelStorei(GL_PACK_ALIGNMENT, 1);

4
source/Irrlicht/OpenGL/Driver.h
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@ -285,6 +285,9 @@ namespace video
//! inits the opengl-es driver
virtual bool genericDriverInit(const core::dimension2d<u32>& screenSize, bool stencilBuffer);
void initVersion();
virtual OpenGLVersion getVersionFromOpenGL() const = 0;
void chooseMaterial2D();
ITexture* createDeviceDependentTexture(const io::path& name, IImage* image) override;
@ -341,6 +344,7 @@ namespace video
core::stringw Name;
core::stringc VendorName;
SIrrlichtCreationParameters Params;
OpenGLVersion Version;
//! bool to make all renderstates reset if set to true.
bool ResetRenderStates;

16
source/Irrlicht/OpenGL3/Driver.cpp
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@ -11,8 +11,24 @@ namespace video {
return EDT_OPENGL3;
}
OpenGLVersion COpenGL3Driver::getVersionFromOpenGL() const {
GLint major, minor, profile;
glGetIntegerv(GL_MAJOR_VERSION, &major);
glGetIntegerv(GL_MINOR_VERSION, &minor);
glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &profile);
// The spec is clear a context can’t be both core and compatibility at the same time.
// However, the returned value is a mask. Ask Khronos why. -- numzero
if (profile & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT)
return {OpenGLSpec::Compat, (u8)major, (u8)minor, 0};
if (profile & GL_CONTEXT_CORE_PROFILE_BIT)
return {OpenGLSpec::Core, (u8)major, (u8)minor, 0};
os::Printer::log("Got unrecognized OpenGL profile", ELL_ERROR);
return {OpenGLSpec::Core, (u8)major, (u8)minor, 0};
}
IVideoDriver* createOpenGL3Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager)
{
os::Printer::log("Using COpenGL3Driver", ELL_INFORMATION);
COpenGL3Driver* driver = new COpenGL3Driver(params, io, contextManager);
driver->genericDriverInit(params.WindowSize, params.Stencilbuffer); // don't call in constructor, it uses virtual function calls of driver
return driver;

6
source/Irrlicht/OpenGL3/Driver.h
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@ -8,11 +8,17 @@
namespace irr {
namespace video {
/// OpenGL 3+ driver
///
/// For OpenGL 3.2 and higher. Compatibility profile is required currently.
class COpenGL3Driver : public COpenGL3DriverBase {
friend IVideoDriver* createOpenGL3Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
public:
using COpenGL3DriverBase::COpenGL3DriverBase;
E_DRIVER_TYPE getDriverType() const override;
protected:
OpenGLVersion getVersionFromOpenGL() const override;
};
}

11
source/Irrlicht/OpenGLES2/Driver.cpp
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@ -11,8 +11,19 @@ namespace video {
return EDT_OGLES2;
}
OpenGLVersion COpenGLES2Driver::getVersionFromOpenGL() const {
auto version_string = reinterpret_cast<const char *>(glGetString(GL_VERSION));
int major, minor;
if (sscanf(version_string, "OpenGL ES %d.%d", &major, &minor) != 2) {
os::Printer::log("Failed to parse OpenGL ES version string", version_string, ELL_ERROR);
return {OpenGLSpec::ES, 0, 0, 0};
}
return {OpenGLSpec::ES, (u8)major, (u8)minor, 0};
}
IVideoDriver* createOGLES2Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager)
{
os::Printer::log("Using COpenGLES2Driver", ELL_INFORMATION);
COpenGLES2Driver* driver = new COpenGLES2Driver(params, io, contextManager);
driver->genericDriverInit(params.WindowSize, params.Stencilbuffer); // don't call in constructor, it uses virtual function calls of driver
return driver;

6
source/Irrlicht/OpenGLES2/Driver.h
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@ -8,11 +8,17 @@
namespace irr {
namespace video {
/// OpenGL ES 2+ driver
///
/// For OpenGL ES 2.0 and higher.
class COpenGLES2Driver : public COpenGL3DriverBase {
friend IVideoDriver* createOGLES2Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
public:
using COpenGL3DriverBase::COpenGL3DriverBase;
E_DRIVER_TYPE getDriverType() const override;
protected:
OpenGLVersion getVersionFromOpenGL() const override;
};
}