| /*------------------------------------------------------------------------ |
| * Vulkan Conformance Tests |
| * ------------------------ |
| * |
| * Copyright (c) 2015 The Khronos Group Inc. |
| * Copyright (c) 2015 Samsung Electronics Co., Ltd. |
| * Copyright (c) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| *//*! |
| * \file |
| * \brief Shader switch statement tests. |
| * |
| * Variables: |
| * + Selection expression type: static, uniform, dynamic |
| * + Switch layout - fall-through or use of default label |
| * + Switch nested in loop/conditional statement |
| * + Loop/conditional statement nested in switch |
| *//*--------------------------------------------------------------------*/ |
| |
| #include "vktShaderRenderSwitchTests.hpp" |
| #include "vktShaderRender.hpp" |
| #include "tcuStringTemplate.hpp" |
| #include "deMath.h" |
| |
| namespace vkt |
| { |
| namespace sr |
| { |
| namespace |
| { |
| |
| static void setUniforms(ShaderRenderCaseInstance& instance, const tcu::Vec4&) |
| { |
| instance.useUniform(0u, UI_TWO); |
| } |
| |
| using std::string; |
| |
| class ShaderSwitchCase : public ShaderRenderCase |
| { |
| public: |
| ShaderSwitchCase (tcu::TestContext& testCtx, |
| const string& name, |
| const string& description, |
| bool isVertexCase, |
| const string& vtxSource, |
| const string& fragSource, |
| ShaderEvalFunc evalFunc, |
| UniformSetupFunc setupUniformsFunc); |
| virtual ~ShaderSwitchCase (void); |
| }; |
| |
| ShaderSwitchCase::ShaderSwitchCase (tcu::TestContext& testCtx, |
| const string& name, |
| const string& description, |
| bool isVertexCase, |
| const string& vtxSource, |
| const string& fragSource, |
| ShaderEvalFunc evalFunc, |
| UniformSetupFunc setupUniformsFunc) |
| : ShaderRenderCase (testCtx, name, description, isVertexCase, evalFunc, new UniformSetup(setupUniformsFunc), DE_NULL) |
| { |
| m_vertShaderSource = vtxSource; |
| m_fragShaderSource = fragSource; |
| } |
| |
| ShaderSwitchCase::~ShaderSwitchCase (void) |
| { |
| } |
| |
| enum SwitchType |
| { |
| SWITCHTYPE_STATIC = 0, |
| SWITCHTYPE_UNIFORM, |
| SWITCHTYPE_DYNAMIC, |
| |
| SWITCHTYPE_LAST |
| }; |
| |
| static void evalSwitchStatic (ShaderEvalContext& evalCtx) { evalCtx.color.xyz() = evalCtx.coords.swizzle(1,2,3); } |
| static void evalSwitchUniform (ShaderEvalContext& evalCtx) { evalCtx.color.xyz() = evalCtx.coords.swizzle(1,2,3); } |
| static void evalSwitchDynamic (ShaderEvalContext& evalCtx) |
| { |
| switch (int(deFloatFloor(evalCtx.coords.z()*1.5f + 2.0f))) |
| { |
| case 0: evalCtx.color.xyz() = evalCtx.coords.swizzle(0,1,2); break; |
| case 1: evalCtx.color.xyz() = evalCtx.coords.swizzle(3,2,1); break; |
| case 2: evalCtx.color.xyz() = evalCtx.coords.swizzle(1,2,3); break; |
| case 3: evalCtx.color.xyz() = evalCtx.coords.swizzle(2,1,0); break; |
| default: evalCtx.color.xyz() = evalCtx.coords.swizzle(0,0,0); break; |
| } |
| } |
| |
| static de::MovePtr<ShaderSwitchCase> makeSwitchCase (tcu::TestContext& testCtx, const string& name, const string& desc, SwitchType type, bool isVertex, const LineStream& switchBody) |
| { |
| std::ostringstream vtx; |
| std::ostringstream frag; |
| std::ostringstream& op = isVertex ? vtx : frag; |
| |
| vtx << "#version 310 es\n" |
| << "layout(location = 0) in highp vec4 a_position;\n" |
| << "layout(location = 1) in highp vec4 a_coords;\n\n"; |
| frag << "#version 310 es\n" |
| << "layout(location = 0) out mediump vec4 o_color;\n"; |
| |
| if (isVertex) |
| { |
| vtx << "layout(location = 0) out mediump vec4 v_color;\n"; |
| frag << "layout(location = 0) in mediump vec4 v_color;\n"; |
| } |
| else |
| { |
| vtx << "layout(location = 0) out highp vec4 v_coords;\n"; |
| frag << "layout(location = 0) in highp vec4 v_coords;\n"; |
| } |
| |
| if (type == SWITCHTYPE_UNIFORM) |
| op << "layout (std140, set=0, binding=0) uniform buffer0 { highp int ui_two; };\n"; |
| |
| vtx << "\n" |
| << "void main (void)\n" |
| << "{\n" |
| << " gl_Position = a_position;\n"; |
| frag << "\n" |
| << "void main (void)\n" |
| << "{\n"; |
| |
| // Setup. |
| op << " highp vec4 coords = " << (isVertex ? "a_coords" : "v_coords") << ";\n"; |
| op << " mediump vec3 res = vec3(0.0);\n\n"; |
| |
| // Switch body. |
| std::map<string, string> params; |
| params["CONDITION"] = type == SWITCHTYPE_STATIC ? "2" : |
| type == SWITCHTYPE_UNIFORM ? "ui_two" : |
| type == SWITCHTYPE_DYNAMIC ? "int(floor(coords.z*1.5 + 2.0))" : "???"; |
| |
| op << tcu::StringTemplate(switchBody.str()).specialize(params); |
| op << "\n"; |
| |
| if (isVertex) |
| { |
| vtx << " v_color = vec4(res, 1.0);\n"; |
| frag << " o_color = v_color;\n"; |
| } |
| else |
| { |
| vtx << " v_coords = a_coords;\n"; |
| frag << " o_color = vec4(res, 1.0);\n"; |
| } |
| |
| vtx << "}\n"; |
| frag << "}\n"; |
| |
| return de::MovePtr<ShaderSwitchCase>(new ShaderSwitchCase(testCtx, name, desc, isVertex, vtx.str(), frag.str(), |
| type == SWITCHTYPE_STATIC ? evalSwitchStatic : |
| type == SWITCHTYPE_UNIFORM ? evalSwitchUniform : |
| type == SWITCHTYPE_DYNAMIC ? evalSwitchDynamic : (ShaderEvalFunc)DE_NULL, |
| type == SWITCHTYPE_UNIFORM ? setUniforms : DE_NULL)); |
| } |
| |
| class ShaderSwitchTests : public tcu::TestCaseGroup |
| { |
| public: |
| ShaderSwitchTests (tcu::TestContext& context); |
| virtual ~ShaderSwitchTests (void); |
| |
| virtual void init (void); |
| |
| private: |
| ShaderSwitchTests (const ShaderSwitchTests&); // not allowed! |
| ShaderSwitchTests& operator= (const ShaderSwitchTests&); // not allowed! |
| |
| void makeSwitchCases (const string& name, const string& desc, const LineStream& switchBody); |
| }; |
| |
| ShaderSwitchTests::ShaderSwitchTests (tcu::TestContext& testCtx) |
| : tcu::TestCaseGroup (testCtx, "switch", "Switch statement tests") |
| { |
| } |
| |
| ShaderSwitchTests::~ShaderSwitchTests (void) |
| { |
| } |
| |
| void ShaderSwitchTests::makeSwitchCases (const string& name, const string& desc, const LineStream& switchBody) |
| { |
| static const char* switchTypeNames[] = { "static", "uniform", "dynamic" }; |
| DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(switchTypeNames) == SWITCHTYPE_LAST); |
| |
| for (int type = 0; type < SWITCHTYPE_LAST; type++) |
| { |
| addChild(makeSwitchCase(m_testCtx, (name + "_" + switchTypeNames[type] + "_vertex"), desc, (SwitchType)type, true, switchBody).release()); |
| addChild(makeSwitchCase(m_testCtx, (name + "_" + switchTypeNames[type] + "_fragment"), desc, (SwitchType)type, false, switchBody).release()); |
| } |
| } |
| |
| void ShaderSwitchTests::init (void) |
| { |
| // Expected swizzles: |
| // 0: xyz |
| // 1: wzy |
| // 2: yzw |
| // 3: zyx |
| |
| makeSwitchCases("basic", "Basic switch statement usage", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 2: res = coords.yzw; break;" |
| << " case 3: res = coords.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("const_expr_in_label", "Constant expression in label", |
| LineStream(1) |
| << "const int t = 2;" |
| << "switch (${CONDITION})" |
| << "{" |
| << " case int(0.0): res = coords.xyz; break;" |
| << " case 2-1: res = coords.wzy; break;" |
| << " case 3&(1<<1): res = coords.yzw; break;" |
| << " case t+1: res = coords.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("default_label", "Default label usage", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 3: res = coords.zyx; break;" |
| << " default: res = coords.yzw;" |
| << "}"); |
| |
| makeSwitchCases("default_not_last", "Default label usage", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " default: res = coords.yzw; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 3: res = coords.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("no_default_label", "No match in switch without default label", |
| LineStream(1) |
| << "res = coords.yzw;\n" |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 3: res = coords.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("fall_through", "Fall-through", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 2: coords = coords.yzwx;" |
| << " case 4: res = vec3(coords); break;" |
| << " case 3: res = coords.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("fall_through_default", "Fall-through", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 3: res = coords.zyx; break;" |
| << " case 2: coords = coords.yzwx;" |
| << " default: res = vec3(coords);" |
| << "}"); |
| |
| makeSwitchCases("conditional_fall_through", "Fall-through", |
| LineStream(1) |
| << "highp vec4 tmp = coords;" |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 2:" |
| << " tmp = coords.yzwx;" |
| << " case 3:" |
| << " res = vec3(tmp);" |
| << " if (${CONDITION} != 3)" |
| << " break;" |
| << " default: res = tmp.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("conditional_fall_through_2", "Fall-through", |
| LineStream(1) |
| << "highp vec4 tmp = coords;" |
| << "mediump int c = ${CONDITION};" |
| << "switch (c)" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 2:" |
| << " c += ${CONDITION};" |
| << " tmp = coords.yzwx;" |
| << " case 3:" |
| << " res = vec3(tmp);" |
| << " if (c == 4)" |
| << " break;" |
| << " default: res = tmp.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("scope", "Basic switch statement usage", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 2:" |
| << " {" |
| << " mediump vec3 t = coords.yzw;" |
| << " res = t;" |
| << " break;" |
| << " }" |
| << " case 3: res = coords.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("switch_in_if", "Switch in for loop", |
| LineStream(1) |
| << "if (${CONDITION} >= 0)" |
| << "{" |
| << " switch (${CONDITION})" |
| << " {" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 2: res = coords.yzw; break;" |
| << " case 3: res = coords.zyx; break;" |
| << " }" |
| << "}"); |
| |
| makeSwitchCases("switch_in_for_loop", "Switch in for loop", |
| LineStream(1) |
| << "for (int i = 0; i <= ${CONDITION}; i++)" |
| << "{" |
| << " switch (i)" |
| << " {" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 2: res = coords.yzw; break;" |
| << " case 3: res = coords.zyx; break;" |
| << " }" |
| << "}"); |
| |
| |
| makeSwitchCases("switch_in_while_loop", "Switch in while loop", |
| LineStream(1) |
| << "int i = 0;" |
| << "while (i <= ${CONDITION})" |
| << "{" |
| << " switch (i)" |
| << " {" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 2: res = coords.yzw; break;" |
| << " case 3: res = coords.zyx; break;" |
| << " }" |
| << " i += 1;" |
| << "}"); |
| |
| makeSwitchCases("switch_in_do_while_loop", "Switch in do-while loop", |
| LineStream(1) |
| << "int i = 0;" |
| << "do" |
| << "{" |
| << " switch (i)" |
| << " {" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " case 2: res = coords.yzw; break;" |
| << " case 3: res = coords.zyx; break;" |
| << " }" |
| << " i += 1;" |
| << "} while (i <= ${CONDITION});"); |
| |
| makeSwitchCases("if_in_switch", "Basic switch statement usage", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1: res = coords.wzy; break;" |
| << " default:" |
| << " if (${CONDITION} == 2)" |
| << " res = coords.yzw;" |
| << " else" |
| << " res = coords.zyx;" |
| << " break;" |
| << "}"); |
| |
| makeSwitchCases("for_loop_in_switch", "Basic switch statement usage", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1:" |
| << " case 2:" |
| << " {" |
| << " highp vec3 t = coords.yzw;" |
| << " for (int i = 0; i < ${CONDITION}; i++)" |
| << " t = t.zyx;" |
| << " res = t;" |
| << " break;" |
| << " }" |
| << " default: res = coords.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("while_loop_in_switch", "Basic switch statement usage", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1:" |
| << " case 2:" |
| << " {" |
| << " highp vec3 t = coords.yzw;" |
| << " int i = 0;" |
| << " while (i < ${CONDITION})" |
| << " {" |
| << " t = t.zyx;" |
| << " i += 1;" |
| << " }" |
| << " res = t;" |
| << " break;" |
| << " }" |
| << " default: res = coords.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("do_while_loop_in_switch", "Basic switch statement usage", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1:" |
| << " case 2:" |
| << " {" |
| << " highp vec3 t = coords.yzw;" |
| << " int i = 0;" |
| << " do" |
| << " {" |
| << " t = t.zyx;" |
| << " i += 1;" |
| << " } while (i < ${CONDITION});" |
| << " res = t;" |
| << " break;" |
| << " }" |
| << " default: res = coords.zyx; break;" |
| << "}"); |
| |
| makeSwitchCases("switch_in_switch", "Basic switch statement usage", |
| LineStream(1) |
| << "switch (${CONDITION})" |
| << "{" |
| << " case 0: res = coords.xyz; break;" |
| << " case 1:" |
| << " case 2:" |
| << " switch (${CONDITION} - 1)" |
| << " {" |
| << " case 0: res = coords.wzy; break;" |
| << " case 1: res = coords.yzw; break;" |
| << " }" |
| << " break;" |
| << " default: res = coords.zyx; break;" |
| << "}"); |
| } |
| |
| } // anonymous |
| |
| tcu::TestCaseGroup* createSwitchTests (tcu::TestContext& testCtx) |
| { |
| return new ShaderSwitchTests(testCtx); |
| } |
| |
| } // sr |
| } // vkt |
