/*------------------------------------------------------------------------- * OpenGL Conformance Test Suite * ----------------------------- * * Copyright (c) 2014-2016 The Khronos Group Inc. * * 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 */ /*-------------------------------------------------------------------*/ #include "esextcGeometryShaderLayeredRenderingFBONoAttachment.hpp" #include "gluDefs.hpp" #include "tcuTestLog.hpp" namespace glcts { /* Fragment shader code */ const char* GeometryShaderLayeredRenderingFBONoAttachment::m_fs_code = "${VERSION}\n" "\n" "${GEOMETRY_SHADER_REQUIRE}\n" "\n" "precision highp float;\n" "\n" "layout(rgba32i, binding = 0) writeonly uniform highp iimage2DArray array_image;\n" "\n" " in vec2 uv;\n" "flat in int layer_id;\n" "out vec4 color;\n" "\n" "void main()\n" "{\n" " imageStore(array_image, ivec3( int(128.0 * uv.x), int(128.0 * uv.y), layer_id ), ivec4(0, 255, 0, 0) );\n" "}\n"; /* Geometry shader code */ const char* GeometryShaderLayeredRenderingFBONoAttachment::m_gs_code = "${VERSION}\n" "\n" "${GEOMETRY_SHADER_REQUIRE}\n" "\n" "precision highp float;\n" "\n" "layout(points) in;\n" "layout(triangle_strip, max_vertices=16) out;\n" "\n" " out vec2 uv;\n" "flat out int layer_id;\n" "\n" "void main()\n" "{\n" " for (int n = 0; n < 4; ++n)\n" " {\n" " gl_Position = vec4(1, -1, 0, 1);\n" " gl_Layer = n;\n" " layer_id = n;\n" " uv = vec2(1, 0);\n" " EmitVertex();\n" "\n" " gl_Position = vec4(1, 1, 0, 1);\n" " gl_Layer = n;\n" " layer_id = n;\n" " uv = vec2(1, 1);\n" " EmitVertex();\n" "\n" " gl_Position = vec4(-1, -1, 0, 1);\n" " gl_Layer = n;\n" " layer_id = n;\n" " uv = vec2(0, 0);\n" " EmitVertex();\n" "\n" " gl_Position = vec4(-1, 1, 0, 1);\n" " gl_Layer = n;\n" " layer_id = n;\n" " uv = vec2(0, 1);\n" " EmitVertex();\n" "\n" " EndPrimitive();\n" " }\n" "}\n"; /* Vertex shader code */ const char* GeometryShaderLayeredRenderingFBONoAttachment::m_vs_code = "${VERSION}\n" "\n" "${GEOMETRY_SHADER_REQUIRE}\n" "\n" "precision highp float;\n" "\n" "void main()\n" "{\n" "}\n"; /* Constants */ const glw::GLint GeometryShaderLayeredRenderingFBONoAttachment::m_height = 128; const glw::GLint GeometryShaderLayeredRenderingFBONoAttachment::m_width = 128; const int GeometryShaderLayeredRenderingFBONoAttachment::m_n_layers = 4; const glw::GLint GeometryShaderLayeredRenderingFBONoAttachment::m_n_texture_components = 4; /** Constructor * * @param context Test context * @param name Test case's name * @param description Test case's description **/ GeometryShaderLayeredRenderingFBONoAttachment::GeometryShaderLayeredRenderingFBONoAttachment( Context& context, const ExtParameters& extParams, const char* name, const char* description) : TestCaseBase(context, extParams, name, description) , m_fbo_id(0) , m_fs_id(0) , m_gs_id(0) , m_po_id(0) , m_to_id(0) , m_vao_id(0) , m_vs_id(0) , m_all_layers_data(DE_NULL) , m_layer_data(DE_NULL) { /* Nothing to be done here */ } /** Deinitializes GLES objects created during the test. * */ void GeometryShaderLayeredRenderingFBONoAttachment::deinit(void) { const glw::Functions& gl = m_context.getRenderContext().getFunctions(); /* Reset OpenGL ES state */ gl.useProgram(0); gl.bindTexture(GL_TEXTURE_2D_ARRAY, 0 /* texture */); gl.bindFramebuffer(GL_FRAMEBUFFER, 0); gl.bindVertexArray(0); if (m_po_id != 0) { gl.deleteProgram(m_po_id); m_po_id = 0; } if (m_fs_id != 0) { gl.deleteShader(m_fs_id); m_fs_id = 0; } if (m_gs_id != 0) { gl.deleteShader(m_gs_id); m_gs_id = 0; } if (m_vs_id != 0) { gl.deleteShader(m_vs_id); m_vs_id = 0; } if (m_to_id != 0) { gl.deleteTextures(1, &m_to_id); m_to_id = 0; } if (m_fbo_id != 0) { gl.deleteFramebuffers(1, &m_fbo_id); m_fbo_id = 0; } if (m_vao_id != 0) { gl.deleteVertexArrays(1, &m_vao_id); m_vao_id = 0; } if (m_all_layers_data != DE_NULL) { delete[] m_all_layers_data; m_all_layers_data = DE_NULL; } if (m_layer_data != DE_NULL) { delete[] m_layer_data; m_layer_data = DE_NULL; } /* Release base class */ TestCaseBase::deinit(); } /** Executes the test. * Sets the test result to QP_TEST_RESULT_FAIL if the test failed, QP_TEST_RESULT_PASS otherwise. * * Note the function throws exception should an error occur! * * @return STOP if the test has finished, CONTINUE to indicate iterate should be called once again. * **/ tcu::TestNode::IterateResult GeometryShaderLayeredRenderingFBONoAttachment::iterate(void) { const glw::Functions& gl = m_context.getRenderContext().getFunctions(); /* Check if required extensions are supported */ if (!m_is_geometry_shader_extension_supported) { throw tcu::NotSupportedError(GEOMETRY_SHADER_EXTENSION_NOT_SUPPORTED, "", __FILE__, __LINE__); } if (!m_is_framebuffer_no_attachments_supported) { throw tcu::NotSupportedError("framebuffer_no_attachment, is not supported", "", __FILE__, __LINE__); } if (!m_is_shader_image_load_store_supported) { throw tcu::NotSupportedError("shader_image_load_store, is not supported", "", __FILE__, __LINE__); } /* Generate and bind a framebuffer object */ gl.genFramebuffers(1, &m_fbo_id); gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, m_fbo_id); /* Get the default number of layers of a newly created framebuffer object */ glw::GLint nLayers = -1; gl.getFramebufferParameteriv(GL_DRAW_FRAMEBUFFER, m_glExtTokens.FRAMEBUFFER_DEFAULT_LAYERS, &nLayers); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not query a framebuffer object for the number of default layers!"); /* check 14.2 test condition - if default number of layer equals 0 */ if (nLayers != 0) { m_testCtx.getLog() << tcu::TestLog::Message << "Number of default layers should be equal to 0 but is " << nLayers << tcu::TestLog::EndMessage; m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Fail"); return STOP; } /* Set the default resolution to 128x128 */ glw::GLint width = 0; glw::GLint height = 0; gl.framebufferParameteri(GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_WIDTH, m_width); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not set the default framebuffer's width!"); gl.getFramebufferParameteriv(GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_WIDTH, &width); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not get the default framebuffer's width!"); gl.framebufferParameteri(GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_HEIGHT, m_height); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not set the default framebuffer's height!"); gl.getFramebufferParameteriv(GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_HEIGHT, &height); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not get the default framebuffer's height!"); if (m_width != width || m_height != height) { m_testCtx.getLog() << tcu::TestLog::Message << "Framebuffer's default width/height is not equal to" << m_width << "\\" << m_height << " but is " << width << "\\" << height << tcu::TestLog::EndMessage; m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Fail"); return STOP; } /* Configure program object to be used for functional part of the test */ m_po_id = gl.createProgram(); m_vs_id = gl.createShader(GL_VERTEX_SHADER); m_gs_id = gl.createShader(m_glExtTokens.GEOMETRY_SHADER); m_fs_id = gl.createShader(GL_FRAGMENT_SHADER); if (!buildProgram(m_po_id, m_fs_id, 1 /* part */, &m_fs_code, m_gs_id, 1 /* part */, &m_gs_code, m_vs_id, 1 /* part */, &m_vs_code)) { TCU_FAIL("Could not create program object from a valid vertex/geometry/fragment shader code!"); } /* Configure texture objects and fill them with initial data */ m_all_layers_data = new glw::GLint[m_n_layers * m_width * m_height * m_n_texture_components]; for (int n = 0; n < m_n_layers * m_width * m_height; ++n) { m_all_layers_data[n * m_n_texture_components + 0] = 255; m_all_layers_data[n * m_n_texture_components + 1] = 0; m_all_layers_data[n * m_n_texture_components + 2] = 0; m_all_layers_data[n * m_n_texture_components + 3] = 0; } gl.genTextures(1, &m_to_id); gl.bindTexture(GL_TEXTURE_2D_ARRAY, m_to_id); gl.texStorage3D(GL_TEXTURE_2D_ARRAY, 1 /* levels */, GL_RGBA32I, m_width, m_height, m_n_layers); gl.texParameterf(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_NEAREST); gl.texParameterf(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_NEAREST); GLU_EXPECT_NO_ERROR(gl.getError(), "Error creating texture objects!"); /* Activate the test program object */ gl.useProgram(m_po_id); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not use program!"); /* Bind texture to image unit */ gl.bindImageTexture(0, m_to_id, 0 /* level */, GL_TRUE, 0 /* layer */, GL_WRITE_ONLY, GL_RGBA32I); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not bind texture to image unit!"); /* Generate & bind a VAO */ gl.genVertexArrays(1, &m_vao_id); gl.bindVertexArray(m_vao_id); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not create a vertex array object!"); /* Set up the viewport */ gl.viewport(0 /* x */, 0 /* y */, m_width /* width */, m_height /* height */); GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport() call failed."); /* Test 21.4 adjusts the behavior of the original tests. The test now needs to run * in two iterations: * * a) Original behavior is left intact * b) GL_FRAMEBUFFER_DEFAULT_LAYERS_EXT should be set to 0. */ glw::GLboolean test_failed = false; m_layer_data = new glw::GLint[m_width * m_height * m_n_texture_components]; for (unsigned int n_test_iteration = 0; n_test_iteration < 2 && !test_failed; ++n_test_iteration) { const glw::GLint current_n_layers = (n_test_iteration == 1) ? 0 : m_n_layers; /* Reset render-target contents */ gl.texSubImage3D(GL_TEXTURE_2D_ARRAY, 0, /* level */ 0, /* xoffset */ 0, /* yoffset */ 0, /* zoffset */ m_width, m_height, m_n_layers, GL_RGBA_INTEGER, GL_INT, m_all_layers_data); GLU_EXPECT_NO_ERROR(gl.getError(), "glTexSubImage3D() call failed."); /* Set the default number of layers to m_n_layers */ gl.framebufferParameteri(GL_DRAW_FRAMEBUFFER, m_glExtTokens.FRAMEBUFFER_DEFAULT_LAYERS, current_n_layers); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not set the default number of layers of a framebuffer object!"); gl.getFramebufferParameteriv(GL_DRAW_FRAMEBUFFER, m_glExtTokens.FRAMEBUFFER_DEFAULT_LAYERS, &nLayers); /* check if the reported value equals m_n_layers */ if (current_n_layers != nLayers) { m_testCtx.getLog() << tcu::TestLog::Message << "FBO's default layers should be equal to " << m_n_layers << "but is " << nLayers << tcu::TestLog::EndMessage; m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Fail"); return STOP; } /* Render! */ gl.drawArrays(GL_POINTS, 0 /* first */, 1 /* count */); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not execute a draw call!"); /* Verify result texture data */ gl.bindFramebuffer(GL_READ_FRAMEBUFFER, m_fbo_id); for (int n_layer = 0; n_layer < m_n_layers && !test_failed; ++n_layer) { gl.framebufferTextureLayer(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_to_id, 0 /* level */, n_layer); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not bind texture as color attachment to framebuffer!"); if (gl.checkFramebufferStatus(GL_READ_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) { TCU_FAIL("Read framebuffer is not complete!"); } gl.memoryBarrier(GL_FRAMEBUFFER_BARRIER_BIT); gl.readPixels(0 /* x */, 0 /* y */, m_width, m_height, GL_RGBA_INTEGER, GL_INT, m_layer_data); GLU_EXPECT_NO_ERROR(gl.getError(), "Could not read back pixels from the texture bound to color attachment!"); /* Perform the verification */ const int referenceColor[4] = { 0, 255, 0, 0 }; for (int nPx = 0; nPx < m_width * m_height; ++nPx) { if (m_layer_data[nPx * m_n_texture_components + 0] != referenceColor[0] || m_layer_data[nPx * m_n_texture_components + 1] != referenceColor[1] || m_layer_data[nPx * m_n_texture_components + 2] != referenceColor[2] || m_layer_data[nPx * m_n_texture_components + 3] != referenceColor[3]) { m_testCtx.getLog() << tcu::TestLog::Message << "The test failed: Pixel " << nPx << " from layer " << n_layer << " is set to [" << m_layer_data[nPx * m_n_texture_components + 0] << "," << m_layer_data[nPx * m_n_texture_components + 1] << "," << m_layer_data[nPx * m_n_texture_components + 2] << "," << m_layer_data[nPx * m_n_texture_components + 3] << "] but should be equal to [" << referenceColor[0] << "," << referenceColor[1] << "," << referenceColor[2] << "," << referenceColor[3] << "," << "]" << tcu::TestLog::EndMessage; test_failed = true; break; } /* if (result pixel is invalid) */ } /* for (all pixels) */ } /* for (all layers) */ /* Restore the FBO to no-attachment state for the next iteration */ gl.framebufferTextureLayer(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, 0, 0, 0); } /* for (both iterations) */ if (test_failed) m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Fail"); else m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass"); return STOP; } } // namespace glcts