/**
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* @private
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*/
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var ContextLimits = {
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_maximumCombinedTextureImageUnits: 0,
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_maximumCubeMapSize: 0,
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_maximumFragmentUniformVectors: 0,
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_maximumTextureImageUnits: 0,
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_maximumRenderbufferSize: 0,
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_maximumTextureSize: 0,
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_maximumVaryingVectors: 0,
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_maximumVertexAttributes: 0,
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_maximumVertexTextureImageUnits: 0,
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_maximumVertexUniformVectors: 0,
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_minimumAliasedLineWidth: 0,
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_maximumAliasedLineWidth: 0,
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_minimumAliasedPointSize: 0,
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_maximumAliasedPointSize: 0,
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_maximumViewportWidth: 0,
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_maximumViewportHeight: 0,
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_maximumTextureFilterAnisotropy: 0,
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_maximumDrawBuffers: 0,
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_maximumColorAttachments: 0,
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_highpFloatSupported: false,
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_highpIntSupported: false,
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};
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Object.defineProperties(ContextLimits, {
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/**
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* The maximum number of texture units that can be used from the vertex and fragment
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* shader with this WebGL implementation. The minimum is eight. If both shaders access the
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* same texture unit, this counts as two texture units.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_COMBINED_TEXTURE_IMAGE_UNITS</code>.
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*/
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maximumCombinedTextureImageUnits: {
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get: function () {
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return ContextLimits._maximumCombinedTextureImageUnits;
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},
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},
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/**
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* The approximate maximum cube mape width and height supported by this WebGL implementation.
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* The minimum is 16, but most desktop and laptop implementations will support much larger sizes like 8,192.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_CUBE_MAP_TEXTURE_SIZE</code>.
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*/
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maximumCubeMapSize: {
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get: function () {
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return ContextLimits._maximumCubeMapSize;
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},
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},
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/**
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* The maximum number of <code>vec4</code>, <code>ivec4</code>, and <code>bvec4</code>
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* uniforms that can be used by a fragment shader with this WebGL implementation. The minimum is 16.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_FRAGMENT_UNIFORM_VECTORS</code>.
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*/
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maximumFragmentUniformVectors: {
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get: function () {
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return ContextLimits._maximumFragmentUniformVectors;
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},
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},
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/**
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* The maximum number of texture units that can be used from the fragment shader with this WebGL implementation. The minimum is eight.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_TEXTURE_IMAGE_UNITS</code>.
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*/
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maximumTextureImageUnits: {
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get: function () {
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return ContextLimits._maximumTextureImageUnits;
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},
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},
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/**
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* The maximum renderbuffer width and height supported by this WebGL implementation.
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* The minimum is 16, but most desktop and laptop implementations will support much larger sizes like 8,192.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_RENDERBUFFER_SIZE</code>.
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*/
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maximumRenderbufferSize: {
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get: function () {
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return ContextLimits._maximumRenderbufferSize;
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},
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},
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/**
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* The approximate maximum texture width and height supported by this WebGL implementation.
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* The minimum is 64, but most desktop and laptop implementations will support much larger sizes like 8,192.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_TEXTURE_SIZE</code>.
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*/
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maximumTextureSize: {
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get: function () {
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return ContextLimits._maximumTextureSize;
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},
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},
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/**
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* The maximum number of <code>vec4</code> varying variables supported by this WebGL implementation.
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* The minimum is eight. Matrices and arrays count as multiple <code>vec4</code>s.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_VARYING_VECTORS</code>.
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*/
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maximumVaryingVectors: {
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get: function () {
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return ContextLimits._maximumVaryingVectors;
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},
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},
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/**
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* The maximum number of <code>vec4</code> vertex attributes supported by this WebGL implementation. The minimum is eight.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_VERTEX_ATTRIBS</code>.
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*/
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maximumVertexAttributes: {
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get: function () {
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return ContextLimits._maximumVertexAttributes;
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},
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},
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/**
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* The maximum number of texture units that can be used from the vertex shader with this WebGL implementation.
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* The minimum is zero, which means the GL does not support vertex texture fetch.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_VERTEX_TEXTURE_IMAGE_UNITS</code>.
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*/
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maximumVertexTextureImageUnits: {
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get: function () {
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return ContextLimits._maximumVertexTextureImageUnits;
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},
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},
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/**
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* The maximum number of <code>vec4</code>, <code>ivec4</code>, and <code>bvec4</code>
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* uniforms that can be used by a vertex shader with this WebGL implementation. The minimum is 16.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_VERTEX_UNIFORM_VECTORS</code>.
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*/
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maximumVertexUniformVectors: {
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get: function () {
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return ContextLimits._maximumVertexUniformVectors;
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},
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},
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/**
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* The minimum aliased line width, in pixels, supported by this WebGL implementation. It will be at most one.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>ALIASED_LINE_WIDTH_RANGE</code>.
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*/
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minimumAliasedLineWidth: {
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get: function () {
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return ContextLimits._minimumAliasedLineWidth;
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},
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},
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/**
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* The maximum aliased line width, in pixels, supported by this WebGL implementation. It will be at least one.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>ALIASED_LINE_WIDTH_RANGE</code>.
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*/
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maximumAliasedLineWidth: {
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get: function () {
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return ContextLimits._maximumAliasedLineWidth;
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},
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},
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/**
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* The minimum aliased point size, in pixels, supported by this WebGL implementation. It will be at most one.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>ALIASED_POINT_SIZE_RANGE</code>.
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*/
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minimumAliasedPointSize: {
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get: function () {
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return ContextLimits._minimumAliasedPointSize;
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},
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},
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/**
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* The maximum aliased point size, in pixels, supported by this WebGL implementation. It will be at least one.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>ALIASED_POINT_SIZE_RANGE</code>.
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*/
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maximumAliasedPointSize: {
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get: function () {
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return ContextLimits._maximumAliasedPointSize;
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},
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},
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/**
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* The maximum supported width of the viewport. It will be at least as large as the visible width of the associated canvas.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_VIEWPORT_DIMS</code>.
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*/
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maximumViewportWidth: {
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get: function () {
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return ContextLimits._maximumViewportWidth;
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},
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},
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/**
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* The maximum supported height of the viewport. It will be at least as large as the visible height of the associated canvas.
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* @memberof ContextLimits
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* @type {Number}
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* @see {@link https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml|glGet} with <code>MAX_VIEWPORT_DIMS</code>.
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*/
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maximumViewportHeight: {
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get: function () {
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return ContextLimits._maximumViewportHeight;
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},
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},
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/**
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* The maximum degree of anisotropy for texture filtering
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* @memberof ContextLimits
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* @type {Number}
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*/
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maximumTextureFilterAnisotropy: {
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get: function () {
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return ContextLimits._maximumTextureFilterAnisotropy;
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},
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},
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/**
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* The maximum number of simultaneous outputs that may be written in a fragment shader.
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* @memberof ContextLimits
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* @type {Number}
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*/
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maximumDrawBuffers: {
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get: function () {
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return ContextLimits._maximumDrawBuffers;
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},
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},
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/**
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* The maximum number of color attachments supported.
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* @memberof ContextLimits
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* @type {Number}
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*/
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maximumColorAttachments: {
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get: function () {
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return ContextLimits._maximumColorAttachments;
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},
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},
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/**
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* High precision float supported (<code>highp</code>) in fragment shaders.
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* @memberof ContextLimits
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* @type {Boolean}
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*/
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highpFloatSupported: {
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get: function () {
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return ContextLimits._highpFloatSupported;
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},
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},
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/**
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* High precision int supported (<code>highp</code>) in fragment shaders.
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* @memberof ContextLimits
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* @type {Boolean}
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*/
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highpIntSupported: {
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get: function () {
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return ContextLimits._highpIntSupported;
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},
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},
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});
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export default ContextLimits;
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