diff --git a/cocos2dx/support/opengl_support/OpenGL_Internal.h b/cocos2dx/support/opengl_support/OpenGL_Internal.h new file mode 100644 index 0000000000..175de34eec --- /dev/null +++ b/cocos2dx/support/opengl_support/OpenGL_Internal.h @@ -0,0 +1,46 @@ +/**************************************************************************** +Copyright (c) 2010 cocos2d-x.org + +http://www.cocos2d-x.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +****************************************************************************/ + +#ifndef __SUPPORT_OPGL_SUPPORT_OPGL_INTERNAL_H__ +#define __SUPPORT_OPGL_SUPPORT_OPGL_INTERNAL_H__ + +/* Generic error reporting */ +#define REPORT_ERROR(__FORMAT__, ...) printf("%s: %s\n", __FUNCTION__, __VA_ARGS__) + +/* EAGL and GL functions calling wrappers that log on error */ +#define CALL_EAGL_FUNCTION(__FUNC__, ...) ({ EAGLError __error = __FUNC__( __VA_ARGS__ ); if(__error != kEAGLErrorSuccess) printf("%s() called from %s returned error %i\n", #__FUNC__, __FUNCTION__, __error); (__error ? false : true); }) +//#define CHECK_GL_ERROR() ({ GLenum __error = glGetError(); if(__error) printf("OpenGL error 0x%04X in %s\n", __error, __FUNCTION__); (__error ? NO : YES); }) +#define CHECK_GL_ERROR() ({ GLenum __error = glGetError(); if(__error) printf("OpenGL error 0x%04X in %s\n", __error, __FUNCTION__); }) + +/* Optional delegate methods support */ +#ifndef __DELEGATE_IVAR__ +#define __DELEGATE_IVAR__ _delegate +#endif +#ifndef __DELEGATE_METHODS_IVAR__ +#define __DELEGATE_METHODS_IVAR__ _delegateMethods +#endif +#define TEST_DELEGATE_METHOD_BIT(__BIT__) (self->__DELEGATE_METHODS_IVAR__ & (1 << __BIT__)) +#define SET_DELEGATE_METHOD_BIT(__BIT__, __NAME__) { if([self->__DELEGATE_IVAR__ respondsToSelector:@selector(__NAME__)]) self->__DELEGATE_METHODS_IVAR__ |= (1 << __BIT__); else self->__DELEGATE_METHODS_IVAR__ &= ~(1 << __BIT__); } + +#endif // __SUPPORT_OPGL_SUPPORT_OPGL_INTERNAL_H__ diff --git a/cocos2dx/support/opengl_support/glu.cpp b/cocos2dx/support/opengl_support/glu.cpp new file mode 100644 index 0000000000..3430115eb0 --- /dev/null +++ b/cocos2dx/support/opengl_support/glu.cpp @@ -0,0 +1,129 @@ +/**************************************************************************** +Copyright (c) 2010 cocos2d-x.org + +http://www.cocos2d-x.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +****************************************************************************/ + +#include "glu.h" +#include "OpenGL_Internal.h" + +#include + +#define _USE_MATH_DEFINES +#include + +void gluPerspective(GLfloat fovy, GLfloat aspect, GLfloat zNear, GLfloat zFar) +{ + GLfloat xmin, xmax, ymin, ymax; + + ymax = zNear * (GLfloat)tanf(fovy * (float)M_PI / 360); + ymin = -ymax; + xmin = ymin * aspect; + xmax = ymax * aspect; + + glFrustumf(xmin, xmax, + ymin, ymax, + zNear, zFar); +} + +void gluLookAt(float fEyeX, float fEyeY, float fEyeZ, + float fCenterX, float fCenterY, float fCenterZ, + float fUpX, float fUpY, float fUpZ) +{ + GLfloat m[16]; + GLfloat x[3], y[3], z[3]; + GLfloat mag; + + /* Make rotation matrix */ + + /* Z vector */ + z[0] = fEyeX - fCenterX; + z[1] = fEyeY - fCenterY; + z[2] = fEyeZ - fCenterZ; + mag = (float)sqrtf(z[0] * z[0] + z[1] * z[1] + z[2] * z[2]); + if (mag) { + z[0] /= mag; + z[1] /= mag; + z[2] /= mag; + } + + /* Y vector */ + y[0] = fUpX; + y[1] = fUpY; + y[2] = fUpZ; + + /* X vector = Y cross Z */ + x[0] = y[1] * z[2] - y[2] * z[1]; + x[1] = -y[0] * z[2] + y[2] * z[0]; + x[2] = y[0] * z[1] - y[1] * z[0]; + + /* Recompute Y = Z cross X */ + y[0] = z[1] * x[2] - z[2] * x[1]; + y[1] = -z[0] * x[2] + z[2] * x[0]; + y[2] = z[0] * x[1] - z[1] * x[0]; + + /* cross product gives area of parallelogram, which is < 1.0 for + * non-perpendicular unit-length vectors; so normalize x, y here + */ + + mag = (float)sqrtf(x[0] * x[0] + x[1] * x[1] + x[2] * x[2]); + if (mag) { + x[0] /= mag; + x[1] /= mag; + x[2] /= mag; + } + + mag = (float)sqrtf(y[0] * y[0] + y[1] * y[1] + y[2] * y[2]); + if (mag) { + y[0] /= mag; + y[1] /= mag; + y[2] /= mag; + } + +#define M(row,col) m[col*4+row] + M(0, 0) = x[0]; + M(0, 1) = x[1]; + M(0, 2) = x[2]; + M(0, 3) = 0.0f; + M(1, 0) = y[0]; + M(1, 1) = y[1]; + M(1, 2) = y[2]; + M(1, 3) = 0.0f; + M(2, 0) = z[0]; + M(2, 1) = z[1]; + M(2, 2) = z[2]; + M(2, 3) = 0.0f; + M(3, 0) = 0.0f; + M(3, 1) = 0.0f; + M(3, 2) = 0.0f; + M(3, 3) = 1.0f; +#undef M + { + int a; + GLfloat fixedM[16]; + for (a = 0; a < 16; ++a) + fixedM[a] = m[a]; + glMultMatrixf(fixedM); + } + + /* Translate Eye to Origin */ + glTranslatef(-fEyeX, -fEyeY, -fEyeZ); +} diff --git a/cocos2dx/support/opengl_support/glu.h b/cocos2dx/support/opengl_support/glu.h new file mode 100644 index 0000000000..60abc0bd87 --- /dev/null +++ b/cocos2dx/support/opengl_support/glu.h @@ -0,0 +1,40 @@ +/**************************************************************************** +Copyright (c) 2010 cocos2d-x.org + +http://www.cocos2d-x.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +****************************************************************************/ + +#ifndef __SUPPORT_OPGL_SUPPORT_GLU_H__ +#define __SUPPORT_OPGL_SUPPORT_GLU_H__ + +#include + +/** + @file + cocos2d OpenGL GLU implementation + */ + +/** OpenGL gluLookAt implementation */ +void gluLookAt(float fEyeX, float fEyeY, float fEyeZ, float fLookAtX, float fLookAtY, float fLookAtZ, float fUpX, float fUpY, float fUpZ); +/** OpenGL gluPerspective implementation */ +void gluPerspective(GLfloat fovy, GLfloat aspect, GLfloat zNear, GLfloat zFar); + +#endif // __SUPPORT_OPGL_SUPPORT_GLU_H__