void WebGL2Context::GetActiveUniforms(JSContext* cx, const WebGLProgram& program, const dom::Sequence<GLuint>& uniformIndices, GLenum pname, JS::MutableHandleValue retval) { const char funcName[] = "getActiveUniforms"; retval.setNull(); if (IsContextLost()) return; if (!ValidateUniformEnum(this, pname, funcName)) return; if (!ValidateObject("getActiveUniforms: program", program)) return; const auto& numActiveUniforms = program.LinkInfo()->uniforms.size(); for (const auto& curIndex : uniformIndices) { if (curIndex >= numActiveUniforms) { ErrorInvalidValue("%s: Too-large active uniform index queried.", funcName); return; } } const auto& count = uniformIndices.Length(); JS::Rooted<JSObject*> array(cx, JS_NewArrayObject(cx, count)); UniquePtr<GLint[]> samples(new GLint[count]); if (!array || !samples) { ErrorOutOfMemory("%s: Failed to allocate buffers.", funcName); return; } retval.setObject(*array); MakeContextCurrent(); gl->fGetActiveUniformsiv(program.mGLName, count, uniformIndices.Elements(), pname, samples.get()); switch (pname) { case LOCAL_GL_UNIFORM_TYPE: case LOCAL_GL_UNIFORM_SIZE: case LOCAL_GL_UNIFORM_BLOCK_INDEX: case LOCAL_GL_UNIFORM_OFFSET: case LOCAL_GL_UNIFORM_ARRAY_STRIDE: case LOCAL_GL_UNIFORM_MATRIX_STRIDE: for (size_t i = 0; i < count; ++i) { JS::RootedValue value(cx); value = JS::Int32Value(samples[i]); if (!JS_DefineElement(cx, array, i, value, JSPROP_ENUMERATE)) return; } break; case LOCAL_GL_UNIFORM_IS_ROW_MAJOR: for (size_t i = 0; i < count; ++i) { JS::RootedValue value(cx); value = JS::BooleanValue(samples[i]); if (!JS_DefineElement(cx, array, i, value, JSPROP_ENUMERATE)) return; } break; default: MOZ_CRASH("Invalid pname"); } }
void WebGL2Context::GetActiveUniforms(JSContext* cx, WebGLProgram* program, const dom::Sequence<GLuint>& uniformIndices, GLenum pname, JS::MutableHandleValue retval) { retval.set(JS::NullValue()); if (IsContextLost()) return; if (!ValidateUniformEnum(this, pname, "getActiveUniforms")) return; if (!ValidateObject("getActiveUniforms: program", program)) return; size_t count = uniformIndices.Length(); if (!count) return; GLuint progname = program->mGLName; Vector<GLint> samples; if (!samples.resize(count)) { return; } MakeContextCurrent(); gl->fGetActiveUniformsiv(progname, count, uniformIndices.Elements(), pname, samples.begin()); JS::Rooted<JSObject*> array(cx, JS_NewArrayObject(cx, count)); if (!array) { return; } switch (pname) { case LOCAL_GL_UNIFORM_TYPE: case LOCAL_GL_UNIFORM_SIZE: case LOCAL_GL_UNIFORM_BLOCK_INDEX: case LOCAL_GL_UNIFORM_OFFSET: case LOCAL_GL_UNIFORM_ARRAY_STRIDE: case LOCAL_GL_UNIFORM_MATRIX_STRIDE: for (uint32_t i = 0; i < count; ++i) { JS::RootedValue value(cx); value = JS::Int32Value(samples[i]); if (!JS_DefineElement(cx, array, i, value, JSPROP_ENUMERATE)) { return; } } break; case LOCAL_GL_UNIFORM_IS_ROW_MAJOR: for (uint32_t i = 0; i < count; ++i) { JS::RootedValue value(cx); value = JS::BooleanValue(samples[i]); if (!JS_DefineElement(cx, array, i, value, JSPROP_ENUMERATE)) { return; } } break; default: return; } retval.setObjectOrNull(array); }