/// <summary>
/// Initializes a new instance of the OpenGLUltravioletGraphics class.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="configuration">The Ultraviolet Framework configuration settings for the current context.</param>
public OpenGLUltravioletGraphics(OpenGLUltravioletContext uv, UltravioletConfiguration configuration)
: base(uv)
{
if (configuration.Debug)
{
SDL.GL_SetAttribute(SDL_GLattr.CONTEXT_FLAGS, (int)SDL_GLcontextFlag.DEBUG);
}
var masterptr = ((OpenGLUltravioletWindowInfo)uv.GetPlatform().Windows).GetMasterPointer();
if ((this.context = SDL.GL_CreateContext(masterptr)) == IntPtr.Zero)
throw new SDL2Exception();
if (SDL.GL_SetSwapInterval(0) < 0)
throw new SDL2Exception();
if (gl.Initialized)
{
gl.Uninitialize();
}
gl.Initialize(new OpenGLInitializer());
OpenGLState.ResetCache();
if (!VerifyCapabilities())
throw new NotSupportedException(OpenGLStrings.UnsupportedGraphicsDevice);
if (configuration.Debug && configuration.DebugCallback != null)
{
InitializeDebugOutput(configuration);
}
this.maxTextureStages = Math.Min(16, gl.GetInteger(gl.GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS));
this.textures = new Texture2D[maxTextureStages];
this.samplerStates = new SamplerState[maxTextureStages];
this.capabilities = new OpenGLGraphicsCapabilities();
ResetDeviceStates();
}
/// <summary>
/// Initializes a new instance of the OpenGLUltravioletGraphics class.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="configuration">The Ultraviolet Framework configuration settings for the current context.</param>
public OpenGLUltravioletGraphics(OpenGLUltravioletContext uv, UltravioletConfiguration configuration)
: base(uv)
{
if (configuration.Debug)
{
SDL.GL_SetAttribute(SDL_GLattr.CONTEXT_FLAGS, (int)SDL_GLcontextFlag.DEBUG);
}
var masterptr = ((OpenGLUltravioletWindowInfo)uv.GetPlatform().Windows).GetMasterPointer();
if ((this.context = SDL.GL_CreateContext(masterptr)) == IntPtr.Zero)
{
if (configuration.Debug)
{
SDL.GL_SetAttribute(SDL_GLattr.CONTEXT_FLAGS, 0);
if ((this.context = SDL.GL_CreateContext(masterptr)) == IntPtr.Zero)
{
throw new SDL2Exception();
}
}
else
{
throw new SDL2Exception();
}
}
if (SDL.GL_SetSwapInterval(1) < 0)
{
throw new SDL2Exception();
}
if (gl.Initialized)
{
gl.Uninitialize();
}
gl.Initialize(new OpenGLInitializer());
OpenGLState.ResetCache();
if (!VerifyCapabilities())
{
throw new NotSupportedException(OpenGLStrings.UnsupportedGraphicsDevice);
}
if (configuration.Debug && configuration.DebugCallback != null)
{
InitializeDebugOutput(configuration);
}
this.capabilities = new OpenGLGraphicsCapabilities();
this.maxTextureStages = gl.GetInteger(gl.GL_MAX_TEXTURE_IMAGE_UNITS);
this.textures = new Texture2D[maxTextureStages];
this.samplerStates = new SamplerState[maxTextureStages];
this.samplerObjects = capabilities.SupportsIndependentSamplerState ? new OpenGLSamplerObject[maxTextureStages] : null;
this.backBufferRenderTargetUsage = configuration.BackBufferRenderTargetUsage;
if (samplerObjects != null)
{
for (int i = 0; i < samplerObjects.Length; i++)
{
samplerObjects[i] = new OpenGLSamplerObject(Ultraviolet);
samplerObjects[i].Bind((uint)i);
}
}
OpenGLState.VerifyCache();
ResetDeviceStates();
}
public unsafe OpenGLUltravioletGraphics(OpenGLUltravioletContext uv, OpenGLUltravioletConfiguration configuration, Version versionRequested)
: base(uv)
{
var masterptr = ((OpenGLUltravioletWindowInfo)uv.GetPlatform().Windows).GetMasterPointer();
if (!TryInitializeGLContext(masterptr, configuration))
{
var attemptedVersionMajor = 0;
var attemptedVersionMinor = 0;
if (SDL.GL_GetAttribute(SDL_GLattr.CONTEXT_MAJOR_VERSION, &attemptedVersionMajor) < 0)
throw new SDL2Exception();
if (SDL.GL_GetAttribute(SDL_GLattr.CONTEXT_MINOR_VERSION, &attemptedVersionMinor) < 0)
throw new SDL2Exception();
var attemptedVersion = new Version(attemptedVersionMajor, attemptedVersionMinor, 0, 0);
var isGLES = (uv.Platform == UltravioletPlatform.Android || uv.Platform == UltravioletPlatform.iOS);
if (isGLES && attemptedVersion >= new Version(3, 0) && (configuration.MinimumOpenGLESVersion ?? new Version(2, 0)) <= new Version(2, 0))
{
if (SDL.GL_SetAttribute(SDL_GLattr.CONTEXT_MAJOR_VERSION, 2) < 0)
throw new SDL2Exception();
if (SDL.GL_SetAttribute(SDL_GLattr.CONTEXT_MINOR_VERSION, 0) < 0)
throw new SDL2Exception();
if (!TryInitializeGLContext(masterptr, configuration))
throw new SDL2Exception();
}
else throw new SDL2Exception();
}
if (SDL.GL_SetSwapInterval(1) < 0 && uv.Platform != UltravioletPlatform.iOS)
throw new SDL2Exception();
if (gl.Initialized)
{
gl.Uninitialize();
}
gl.Initialize(new OpenGLInitializer());
if (!gl.IsVersionAtLeast(versionRequested))
throw new InvalidOperationException(OpenGLStrings.DoesNotMeetMinimumVersionRequirement.Format(gl.MajorVersion, gl.MinorVersion, versionRequested.Major, versionRequested.Minor));
OpenGLState.ResetCache();
if (!VerifyCapabilities())
throw new NotSupportedException(OpenGLStrings.UnsupportedGraphicsDevice);
if (configuration.Debug && configuration.DebugCallback != null)
{
InitializeDebugOutput(configuration);
}
this.capabilities = new OpenGLGraphicsCapabilities();
this.maxTextureStages = gl.GetInteger(gl.GL_MAX_TEXTURE_IMAGE_UNITS);
this.textures = new Texture2D[maxTextureStages];
this.samplerStates = new SamplerState[maxTextureStages];
this.samplerObjects = capabilities.SupportsIndependentSamplerState ? new OpenGLSamplerObject[maxTextureStages] : null;
this.backBufferRenderTargetUsage = configuration.BackBufferRenderTargetUsage;
if (samplerObjects != null)
{
for (int i = 0; i < samplerObjects.Length; i++)
{
samplerObjects[i] = new OpenGLSamplerObject(Ultraviolet);
samplerObjects[i].Bind((uint)i);
}
}
OpenGLState.VerifyCache();
}
public unsafe OpenGLUltravioletGraphics(OpenGLUltravioletContext uv, OpenGLUltravioletConfiguration configuration, Version versionRequested)
: base(uv)
{
var masterptr = ((OpenGLUltravioletWindowInfo)uv.GetPlatform().Windows).GetMasterPointer();
if (!TryInitializeGLContext(masterptr, configuration))
{
var attemptedVersionMajor = 0;
var attemptedVersionMinor = 0;
if (SDL.GL_GetAttribute(SDL_GLattr.CONTEXT_MAJOR_VERSION, &attemptedVersionMajor) < 0)
{
throw new SDL2Exception();
}
if (SDL.GL_GetAttribute(SDL_GLattr.CONTEXT_MINOR_VERSION, &attemptedVersionMinor) < 0)
{
throw new SDL2Exception();
}
var attemptedVersion = new Version(attemptedVersionMajor, attemptedVersionMinor, 0, 0);
var isGLES = (uv.Platform == UltravioletPlatform.Android || uv.Platform == UltravioletPlatform.iOS);
if (isGLES && attemptedVersion >= new Version(3, 0) && (configuration.MinimumOpenGLESVersion ?? new Version(2, 0)) <= new Version(2, 0))
{
if (SDL.GL_SetAttribute(SDL_GLattr.CONTEXT_MAJOR_VERSION, 2) < 0)
{
throw new SDL2Exception();
}
if (SDL.GL_SetAttribute(SDL_GLattr.CONTEXT_MINOR_VERSION, 0) < 0)
{
throw new SDL2Exception();
}
if (!TryInitializeGLContext(masterptr, configuration))
{
throw new SDL2Exception();
}
}
else
{
throw new SDL2Exception();
}
}
if (SDL.GL_SetSwapInterval(1) < 0 && uv.Platform != UltravioletPlatform.iOS)
{
throw new SDL2Exception();
}
if (gl.Initialized)
{
gl.Uninitialize();
}
gl.Initialize(new OpenGLInitializer());
if (!gl.IsVersionAtLeast(versionRequested))
{
throw new InvalidOperationException(OpenGLStrings.DoesNotMeetMinimumVersionRequirement.Format(gl.MajorVersion, gl.MinorVersion, versionRequested.Major, versionRequested.Minor));
}
OpenGLState.ResetCache();
if (!VerifyCapabilities())
{
throw new NotSupportedException(OpenGLStrings.UnsupportedGraphicsDevice);
}
if (configuration.Debug && configuration.DebugCallback != null)
{
InitializeDebugOutput(configuration);
}
this.capabilities = new OpenGLGraphicsCapabilities(configuration);
this.maxTextureStages = gl.GetInteger(gl.GL_MAX_TEXTURE_IMAGE_UNITS);
this.textures = new Texture2D[maxTextureStages];
this.samplerStates = new SamplerState[maxTextureStages];
this.samplerObjects = capabilities.SupportsIndependentSamplerState ? new OpenGLSamplerObject[maxTextureStages] : null;
this.backBufferRenderTargetUsage = configuration.BackBufferRenderTargetUsage;
if (samplerObjects != null)
{
for (int i = 0; i < samplerObjects.Length; i++)
{
samplerObjects[i] = new OpenGLSamplerObject(Ultraviolet);
samplerObjects[i].Bind((uint)i);
}
}
OpenGLState.VerifyCache();
}