List of usage examples for org.lwjgl.opengl EXTFramebufferMultisample GL_MAX_SAMPLES_EXT
int GL_MAX_SAMPLES_EXT
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From source file:com.ardor3d.renderer.lwjgl.LwjglContextCapabilities.java
License:Open Source License
public LwjglContextCapabilities(final org.lwjgl.opengl.ContextCapabilities caps) { final IntBuffer buf = BufferUtils.createIntBuffer(16); _supportsVBO = caps.GL_ARB_vertex_buffer_object; _supportsGL1_2 = caps.OpenGL12;// w ww. j a va 2s . co m _supportsMultisample = caps.GL_ARB_multisample; _supportsDoubleCoefficientsInClipPlaneEquation = true; _supportsConstantColor = _supportsEq = caps.GL_ARB_imaging; _supportsSeparateFunc = caps.GL_EXT_blend_func_separate; _supportsSeparateEq = caps.GL_EXT_blend_equation_separate; _supportsMinMax = caps.GL_EXT_blend_minmax; _supportsSubtract = caps.GL_EXT_blend_subtract; _supportsFogCoords = caps.GL_EXT_fog_coord; _supportsFragmentProgram = caps.GL_ARB_fragment_program; _supportsVertexProgram = caps.GL_ARB_vertex_program; _supportsPointSprites = caps.GL_ARB_point_sprite; _supportsPointParameters = caps.GL_ARB_point_parameters; _supportsTextureLodBias = caps.GL_EXT_texture_lod_bias; if (_supportsTextureLodBias) { GL11.glGetInteger(EXTTextureLODBias.GL_MAX_TEXTURE_LOD_BIAS_EXT, buf); _maxTextureLodBias = buf.get(0); } else { _maxTextureLodBias = 0f; } GL11.glGetInteger(GL11.GL_MAX_CLIP_PLANES, buf); _maxUserClipPlanes = buf.get(0); _glslSupported = caps.GL_ARB_shader_objects && caps.GL_ARB_fragment_shader && caps.GL_ARB_vertex_shader && caps.GL_ARB_shading_language_100; _geometryShader4Supported = caps.GL_ARB_geometry_shader4 && _glslSupported; _geometryInstancingSupported = caps.GL_EXT_draw_instanced || caps.OpenGL31; if (_glslSupported) { GL11.glGetInteger(ARBVertexShader.GL_MAX_VERTEX_ATTRIBS_ARB, buf); _maxGLSLVertexAttribs = buf.get(0); } // Pbuffer _pbufferSupported = caps.GL_ARB_pixel_buffer_object; // FBO _fboSupported = caps.GL_EXT_framebuffer_object; if (_fboSupported) { _supportsFBOMultisample = caps.GL_EXT_framebuffer_multisample; _supportsFBOBlit = caps.GL_EXT_framebuffer_blit; if (caps.GL_ARB_draw_buffers) { GL11.glGetInteger(EXTFramebufferObject.GL_MAX_COLOR_ATTACHMENTS_EXT, buf); _maxFBOColorAttachments = buf.get(0); } else { _maxFBOColorAttachments = 1; } // Max multisample samples. if (caps.GL_EXT_framebuffer_multisample && caps.GL_EXT_framebuffer_blit) { GL11.glGetInteger(EXTFramebufferMultisample.GL_MAX_SAMPLES_EXT, buf); _maxFBOSamples = buf.get(0); } else { _maxFBOSamples = 0; } } else { _maxFBOColorAttachments = 0; } _twoSidedStencilSupport = caps.GL_EXT_stencil_two_side; _stencilWrapSupport = caps.GL_EXT_stencil_wrap; // number of available auxiliary draw buffers GL11.glGetInteger(GL11.GL_AUX_BUFFERS, buf); _numAuxDrawBuffers = buf.get(0); // max texture size. GL11.glGetInteger(GL11.GL_MAX_TEXTURE_SIZE, buf); _maxTextureSize = buf.get(0); // Check for support of multitextures. _supportsMultiTexture = caps.GL_ARB_multitexture; // Support for texture formats _supportsFloatTextures = caps.GL_ARB_texture_float; _supportsIntegerTextures = caps.GL_EXT_texture_integer; _supportsOneTwoComponentTextures = caps.GL_ARB_texture_rg; // Check for support of fixed function dot3 environment settings _supportsEnvDot3 = caps.GL_ARB_texture_env_dot3; // Check for support of fixed function dot3 environment settings _supportsEnvCombine = caps.GL_ARB_texture_env_combine; // Check for support of automatic mipmap generation _automaticMipMaps = caps.GL_SGIS_generate_mipmap; _supportsDepthTexture = caps.GL_ARB_depth_texture; _supportsShadow = caps.GL_ARB_shadow; // If we do support multitexturing, find out how many textures we // can handle. if (_supportsMultiTexture) { GL11.glGetInteger(ARBMultitexture.GL_MAX_TEXTURE_UNITS_ARB, buf); _numFixedTexUnits = buf.get(0); } else { _numFixedTexUnits = 1; } // Go on to check number of texture units supported for vertex and // fragment shaders if (caps.GL_ARB_shader_objects && caps.GL_ARB_vertex_shader && caps.GL_ARB_fragment_shader) { GL11.glGetInteger(ARBVertexShader.GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, buf); _numVertexTexUnits = buf.get(0); GL11.glGetInteger(ARBFragmentShader.GL_MAX_TEXTURE_IMAGE_UNITS_ARB, buf); _numFragmentTexUnits = buf.get(0); GL11.glGetInteger(ARBFragmentShader.GL_MAX_TEXTURE_COORDS_ARB, buf); _numFragmentTexCoordUnits = buf.get(0); } else { // based on nvidia dev doc: // http://developer.nvidia.com/object/General_FAQ.html#t6 // "For GPUs that do not support GL_ARB_fragment_program and // GL_NV_fragment_program, those two limits are set equal to // GL_MAX_TEXTURE_UNITS." _numFragmentTexCoordUnits = _numFixedTexUnits; _numFragmentTexUnits = _numFixedTexUnits; // We'll set this to 0 for now since we do not know: _numVertexTexUnits = 0; } // ARBShaderObjects.GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB // caps.GL_EXT_bindable_uniform // EXTBindableUniform.GL_MAX_BINDABLE_UNIFORM_SIZE_EXT; // Now determine the maximum number of supported texture units _numTotalTexUnits = Math.max(_numFragmentTexCoordUnits, Math.max(_numFixedTexUnits, Math.max(_numFragmentTexUnits, _numVertexTexUnits))); // Check for S3 texture compression capability. _supportsS3TCCompression = caps.GL_EXT_texture_compression_s3tc; // Check for LA texture compression capability. _supportsLATCCompression = caps.GL_EXT_texture_compression_latc; // Check for generic texture compression capability. _supportsGenericCompression = caps.GL_ARB_texture_compression; // Check for 3D texture capability. _supportsTexture3D = caps.OpenGL12; // Check for cubemap capability. _supportsTextureCubeMap = caps.GL_ARB_texture_cube_map; // See if we support anisotropic filtering _supportsAniso = caps.GL_EXT_texture_filter_anisotropic; if (_supportsAniso) { // Due to LWJGL buffer check, you can't use smaller sized // buffers (min_size = 16 for glGetFloat()). final FloatBuffer max_a = BufferUtils.createFloatBuffer(16); max_a.rewind(); // Grab the maximum anisotropic filter. GL11.glGetFloat(EXTTextureFilterAnisotropic.GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, max_a); // set max. _maxAnisotropic = max_a.get(0); } // See if we support textures that are not power of 2 in size. _supportsNonPowerTwo = caps.GL_ARB_texture_non_power_of_two; // See if we support textures that do not have width == height. _supportsRectangular = caps.GL_ARB_texture_rectangle; _supportsMirroredRepeat = caps.GL_ARB_texture_mirrored_repeat; _supportsMirrorClamp = _supportsMirrorEdgeClamp = _supportsMirrorBorderClamp = caps.GL_EXT_texture_mirror_clamp; _supportsBorderClamp = caps.GL_ARB_texture_border_clamp; _supportsEdgeClamp = _supportsGL1_2; try { _displayVendor = GL11.glGetString(GL11.GL_VENDOR); } catch (final Exception e) { _displayVendor = "Unable to retrieve vendor."; } try { _displayRenderer = GL11.glGetString(GL11.GL_RENDERER); } catch (final Exception e) { _displayRenderer = "Unable to retrieve adapter details."; } try { _displayVersion = GL11.glGetString(GL11.GL_VERSION); } catch (final Exception e) { _displayVersion = "Unable to retrieve API version."; } try { _shadingLanguageVersion = GL11.glGetString(GL20.GL_SHADING_LANGUAGE_VERSION); } catch (final Exception e) { _shadingLanguageVersion = "Unable to retrieve shading language version."; } }