1 /*------------------------------------------------------------------------
2 * Vulkan Conformance Tests
3 * ------------------------
5 * Copyright (c) 2015 The Khronos Group Inc.
6 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
7 * Copyright (c) 2016 The Android Open Source Project
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
23 * \brief Shader discard statement tests.
24 *//*--------------------------------------------------------------------*/
26 #include "vktShaderRenderDiscardTests.hpp"
27 #include "vktShaderRender.hpp"
28 #include "tcuStringTemplate.hpp"
29 #include "gluTexture.hpp"
33 using tcu::StringTemplate;
42 class SamplerUniformSetup : public UniformSetup
45 SamplerUniformSetup (bool useSampler)
46 : m_useSampler(useSampler)
49 virtual void setup (ShaderRenderCaseInstance& instance, const tcu::Vec4&) const
51 instance.useUniform(0u, UI_ONE);
52 instance.useUniform(1u, UI_TWO);
54 instance.useSampler(2u, 0u); // To the uniform binding location 2 bind the texture 0
58 const bool m_useSampler;
62 class ShaderDiscardCaseInstance : public ShaderRenderCaseInstance
65 ShaderDiscardCaseInstance (Context& context,
67 const ShaderEvaluator& evaluator,
68 const UniformSetup& uniformSetup,
70 virtual ~ShaderDiscardCaseInstance (void);
73 ShaderDiscardCaseInstance::ShaderDiscardCaseInstance (Context& context,
75 const ShaderEvaluator& evaluator,
76 const UniformSetup& uniformSetup,
78 : ShaderRenderCaseInstance (context, isVertexCase, evaluator, uniformSetup, DE_NULL)
82 de::SharedPtr<TextureBinding> brickTexture(new TextureBinding(m_context.getTestContext().getArchive(),
83 "vulkan/data/brick.png",
84 TextureBinding::TYPE_2D,
85 tcu::Sampler(tcu::Sampler::CLAMP_TO_EDGE,
86 tcu::Sampler::CLAMP_TO_EDGE,
87 tcu::Sampler::CLAMP_TO_EDGE,
89 tcu::Sampler::LINEAR)));
90 m_textures.push_back(brickTexture);
94 ShaderDiscardCaseInstance::~ShaderDiscardCaseInstance (void)
98 class ShaderDiscardCase : public ShaderRenderCase
101 ShaderDiscardCase (tcu::TestContext& testCtx,
103 const char* description,
104 const char* shaderSource,
105 const ShaderEvalFunc evalFunc,
107 virtual TestInstance* createInstance (Context& context) const
109 DE_ASSERT(m_evaluator != DE_NULL);
110 DE_ASSERT(m_uniformSetup != DE_NULL);
111 return new ShaderDiscardCaseInstance(context, m_isVertexCase, *m_evaluator, *m_uniformSetup, m_usesTexture);
115 const bool m_usesTexture;
118 ShaderDiscardCase::ShaderDiscardCase (tcu::TestContext& testCtx,
120 const char* description,
121 const char* shaderSource,
122 const ShaderEvalFunc evalFunc,
124 : ShaderRenderCase (testCtx, name, description, false, evalFunc, new SamplerUniformSetup(usesTexture), DE_NULL)
125 , m_usesTexture (usesTexture)
127 m_fragShaderSource = shaderSource;
130 "layout(location=0) in highp vec4 a_position;\n"
131 "layout(location=1) in highp vec4 a_coords;\n"
132 "layout(location=0) out mediump vec4 v_color;\n"
133 "layout(location=1) out mediump vec4 v_coords;\n\n"
136 " gl_Position = a_position;\n"
137 " v_color = vec4(a_coords.xyz, 1.0);\n"
138 " v_coords = a_coords;\n"
145 DISCARDMODE_ALWAYS = 0,
156 DISCARDTEMPLATE_MAIN_BASIC = 0,
157 DISCARDTEMPLATE_FUNCTION_BASIC,
158 DISCARDTEMPLATE_MAIN_STATIC_LOOP,
159 DISCARDTEMPLATE_MAIN_DYNAMIC_LOOP,
160 DISCARDTEMPLATE_FUNCTION_STATIC_LOOP,
165 // Evaluation functions
166 inline void evalDiscardAlways (ShaderEvalContext& c) { c.discard(); }
167 inline void evalDiscardNever (ShaderEvalContext& c) { c.color.xyz() = c.coords.swizzle(0,1,2); }
168 inline void evalDiscardDynamic (ShaderEvalContext& c) { c.color.xyz() = c.coords.swizzle(0,1,2); if (c.coords.x()+c.coords.y() > 0.0f) c.discard(); }
170 inline void evalDiscardTexture (ShaderEvalContext& c)
172 c.color.xyz() = c.coords.swizzle(0,1,2);
173 if (c.texture2D(0, c.coords.swizzle(0,1) * 0.25f + 0.5f).x() < 0.7f)
177 static ShaderEvalFunc getEvalFunc (DiscardMode mode)
181 case DISCARDMODE_ALWAYS: return evalDiscardAlways;
182 case DISCARDMODE_NEVER: return evalDiscardNever;
183 case DISCARDMODE_UNIFORM: return evalDiscardAlways;
184 case DISCARDMODE_DYNAMIC: return evalDiscardDynamic;
185 case DISCARDMODE_TEXTURE: return evalDiscardTexture;
188 return evalDiscardAlways;
192 static const char* getTemplate (DiscardTemplate variant)
194 #define GLSL_SHADER_TEMPLATE_HEADER \
195 "#version 310 es\n" \
196 "layout(location = 0) in mediump vec4 v_color;\n" \
197 "layout(location = 1) in mediump vec4 v_coords;\n" \
198 "layout(location = 0) out mediump vec4 o_color;\n" \
199 "layout(set = 0, binding = 2) uniform sampler2D ut_brick;\n" \
200 "layout(set = 0, binding = 0) uniform block0 { mediump int ui_one; };\n\n"
204 case DISCARDTEMPLATE_MAIN_BASIC:
205 return GLSL_SHADER_TEMPLATE_HEADER
208 " o_color = v_color;\n"
212 case DISCARDTEMPLATE_FUNCTION_BASIC:
213 return GLSL_SHADER_TEMPLATE_HEADER
214 "void myfunc (void)\n"
220 " o_color = v_color;\n"
224 case DISCARDTEMPLATE_MAIN_STATIC_LOOP:
225 return GLSL_SHADER_TEMPLATE_HEADER
228 " o_color = v_color;\n"
229 " for (int i = 0; i < 2; i++)\n"
236 case DISCARDTEMPLATE_MAIN_DYNAMIC_LOOP:
237 return GLSL_SHADER_TEMPLATE_HEADER
238 "layout(set = 0, binding = 1) uniform block1 { mediump int ui_two; };\n\n"
241 " o_color = v_color;\n"
242 " for (int i = 0; i < ui_two; i++)\n"
249 case DISCARDTEMPLATE_FUNCTION_STATIC_LOOP:
250 return GLSL_SHADER_TEMPLATE_HEADER
251 "void myfunc (void)\n"
253 " for (int i = 0; i < 2; i++)\n"
261 " o_color = v_color;\n"
270 #undef GLSL_SHADER_TEMPLATE_HEADER
273 static const char* getTemplateName (DiscardTemplate variant)
277 case DISCARDTEMPLATE_MAIN_BASIC: return "basic";
278 case DISCARDTEMPLATE_FUNCTION_BASIC: return "function";
279 case DISCARDTEMPLATE_MAIN_STATIC_LOOP: return "static_loop";
280 case DISCARDTEMPLATE_MAIN_DYNAMIC_LOOP: return "dynamic_loop";
281 case DISCARDTEMPLATE_FUNCTION_STATIC_LOOP: return "function_static_loop";
288 static const char* getModeName (DiscardMode mode)
292 case DISCARDMODE_ALWAYS: return "always";
293 case DISCARDMODE_NEVER: return "never";
294 case DISCARDMODE_UNIFORM: return "uniform";
295 case DISCARDMODE_DYNAMIC: return "dynamic";
296 case DISCARDMODE_TEXTURE: return "texture";
303 static const char* getTemplateDesc (DiscardTemplate variant)
307 case DISCARDTEMPLATE_MAIN_BASIC: return "main";
308 case DISCARDTEMPLATE_FUNCTION_BASIC: return "function";
309 case DISCARDTEMPLATE_MAIN_STATIC_LOOP: return "static loop";
310 case DISCARDTEMPLATE_MAIN_DYNAMIC_LOOP: return "dynamic loop";
311 case DISCARDTEMPLATE_FUNCTION_STATIC_LOOP: return "static loop in function";
318 static const char* getModeDesc (DiscardMode mode)
322 case DISCARDMODE_ALWAYS: return "Always discard";
323 case DISCARDMODE_NEVER: return "Never discard";
324 case DISCARDMODE_UNIFORM: return "Discard based on uniform value";
325 case DISCARDMODE_DYNAMIC: return "Discard based on varying values";
326 case DISCARDMODE_TEXTURE: return "Discard based on texture value";
333 de::MovePtr<ShaderDiscardCase> makeDiscardCase (tcu::TestContext& testCtx, DiscardTemplate tmpl, DiscardMode mode)
335 StringTemplate shaderTemplate(getTemplate(tmpl));
337 std::map<std::string, std::string> params;
341 case DISCARDMODE_ALWAYS: params["DISCARD"] = "discard"; break;
342 case DISCARDMODE_NEVER: params["DISCARD"] = "if (false) discard"; break;
343 case DISCARDMODE_UNIFORM: params["DISCARD"] = "if (ui_one > 0) discard"; break;
344 case DISCARDMODE_DYNAMIC: params["DISCARD"] = "if (v_coords.x+v_coords.y > 0.0) discard"; break;
345 case DISCARDMODE_TEXTURE: params["DISCARD"] = "if (texture(ut_brick, v_coords.xy*0.25+0.5).x < 0.7) discard"; break;
351 std::string name = std::string(getTemplateName(tmpl)) + "_" + getModeName(mode);
352 std::string description = std::string(getModeDesc(mode)) + " in " + getTemplateDesc(tmpl);
354 return de::MovePtr<ShaderDiscardCase>(new ShaderDiscardCase(testCtx, name.c_str(), description.c_str(), shaderTemplate.specialize(params).c_str(), getEvalFunc(mode), mode == DISCARDMODE_TEXTURE));
357 class ShaderDiscardTests : public tcu::TestCaseGroup
360 ShaderDiscardTests (tcu::TestContext& textCtx);
361 virtual ~ShaderDiscardTests (void);
363 virtual void init (void);
366 ShaderDiscardTests (const ShaderDiscardTests&); // not allowed!
367 ShaderDiscardTests& operator= (const ShaderDiscardTests&); // not allowed!
370 ShaderDiscardTests::ShaderDiscardTests (tcu::TestContext& testCtx)
371 : TestCaseGroup(testCtx, "discard", "Discard statement tests")
375 ShaderDiscardTests::~ShaderDiscardTests (void)
379 void ShaderDiscardTests::init (void)
381 for (int tmpl = 0; tmpl < DISCARDTEMPLATE_LAST; tmpl++)
382 for (int mode = 0; mode < DISCARDMODE_LAST; mode++)
383 addChild(makeDiscardCase(m_testCtx, (DiscardTemplate)tmpl, (DiscardMode)mode).release());
388 tcu::TestCaseGroup* createDiscardTests (tcu::TestContext& testCtx)
390 return new ShaderDiscardTests(testCtx);