15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Helper functions for GL. 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef GPU_COMMAND_BUFFER_TESTS_GL_TEST_UTILS_H_ 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define GPU_COMMAND_BUFFER_TESTS_GL_TEST_UTILS_H_ 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <GLES2/gl2.h> 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class GLTestHelper { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static const uint8 kCheckClearValue = 123u; 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool HasExtension(const char* extension); 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool CheckGLError(const char* msg, int line); 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Compiles a shader. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns shader, 0 on failure.. 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static GLuint LoadShader(GLenum type, const char* shaderSrc); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Attaches 2 shaders and links them to a program. 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns program, 0 on failure.. 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static GLuint SetupProgram(GLuint vertex_shader, GLuint fragment_shader); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Compiles 2 shaders, attaches and links them to a program 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns program, 0 on failure. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static GLuint LoadProgram( 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* vertex_shader_source, 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* fragment_shader_source); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make a unit quad with position only. 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns the created buffer. 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static GLuint SetupUnitQuad(GLint position_location); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Make a 6 vertex colors. 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Returns the created buffer. 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static GLuint SetupColorsForUnitQuad( 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GLint location, const GLfloat color[4], GLenum usage); 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Checks an area of pixels for a color. 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool CheckPixels( 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint x, GLint y, GLsizei width, GLsizei height, GLint tolerance, 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const uint8* color); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Uses ReadPixels to save an area of the current FBO/Backbuffer. 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool SaveBackbufferAsBMP(const char* filename, int width, int height); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Run unit tests. 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static int RunTests(int argc, char** argv); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // GPU_COMMAND_BUFFER_TESTS_GL_TEST_UTILS_H_ 56