From 5a920540b12253b1ebd7e658df19f916e3c55135 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Mon, 14 Sep 2020 11:07:09 +0300 Subject: Rename esTransform.c to .cpp This was the only C file in the project, so now we're "pure" c++. Signed-off-by: Tomi Valkeinen --- kmscube/CMakeLists.txt | 2 +- kmscube/esTransform.c | 235 ------------------------------------------------ kmscube/esTransform.cpp | 235 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 236 insertions(+), 236 deletions(-) delete mode 100644 kmscube/esTransform.c create mode 100644 kmscube/esTransform.cpp (limited to 'kmscube') diff --git a/kmscube/CMakeLists.txt b/kmscube/CMakeLists.txt index b6bac29..9df43c0 100644 --- a/kmscube/CMakeLists.txt +++ b/kmscube/CMakeLists.txt @@ -31,7 +31,7 @@ link_directories( add_executable (kmscube cube.cpp cube.h cube-egl.cpp cube-egl.h cube-gles2.cpp cube-gles2.h cube-null.cpp cube-gbm.cpp cube-x11.cpp cube-wl.cpp - esTransform.c esTransform.h) + esTransform.cpp esTransform.h) target_link_libraries(kmscube kms++ kms++util ${LIBDRM_LIBRARIES} ${GLESv2_LIBRARIES} diff --git a/kmscube/esTransform.c b/kmscube/esTransform.c deleted file mode 100644 index 899c038..0000000 --- a/kmscube/esTransform.c +++ /dev/null @@ -1,235 +0,0 @@ -// -// Book: OpenGL(R) ES 2.0 Programming Guide -// Authors: Aaftab Munshi, Dan Ginsburg, Dave Shreiner -// ISBN-10: 0321502795 -// ISBN-13: 9780321502797 -// Publisher: Addison-Wesley Professional -// URLs: http://safari.informit.com/9780321563835 -// http://www.opengles-book.com -// - -/* - * (c) 2009 Aaftab Munshi, Dan Ginsburg, Dave Shreiner - * - * 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. - */ - -// ESUtil.c -// -// A utility library for OpenGL ES. This library provides a -// basic common framework for the example applications in the -// OpenGL ES 2.0 Programming Guide. -// - -/// -// Includes -// -#include "esTransform.h" -#include -#include - -#define PI 3.1415926535897932384626433832795f - -void -esScale(ESMatrix *result, GLfloat sx, GLfloat sy, GLfloat sz) -{ - result->m[0][0] *= sx; - result->m[0][1] *= sx; - result->m[0][2] *= sx; - result->m[0][3] *= sx; - - result->m[1][0] *= sy; - result->m[1][1] *= sy; - result->m[1][2] *= sy; - result->m[1][3] *= sy; - - result->m[2][0] *= sz; - result->m[2][1] *= sz; - result->m[2][2] *= sz; - result->m[2][3] *= sz; -} - -void -esTranslate(ESMatrix *result, GLfloat tx, GLfloat ty, GLfloat tz) -{ - result->m[3][0] += (result->m[0][0] * tx + result->m[1][0] * ty + result->m[2][0] * tz); - result->m[3][1] += (result->m[0][1] * tx + result->m[1][1] * ty + result->m[2][1] * tz); - result->m[3][2] += (result->m[0][2] * tx + result->m[1][2] * ty + result->m[2][2] * tz); - result->m[3][3] += (result->m[0][3] * tx + result->m[1][3] * ty + result->m[2][3] * tz); -} - -void -esRotate(ESMatrix *result, GLfloat angle, GLfloat x, GLfloat y, GLfloat z) -{ - GLfloat sinAngle, cosAngle; - GLfloat mag = sqrtf(x * x + y * y + z * z); - - sinAngle = sinf ( angle * PI / 180.0f ); - cosAngle = cosf ( angle * PI / 180.0f ); - if ( mag > 0.0f ) - { - GLfloat xx, yy, zz, xy, yz, zx, xs, ys, zs; - GLfloat oneMinusCos; - ESMatrix rotMat; - - x /= mag; - y /= mag; - z /= mag; - - xx = x * x; - yy = y * y; - zz = z * z; - xy = x * y; - yz = y * z; - zx = z * x; - xs = x * sinAngle; - ys = y * sinAngle; - zs = z * sinAngle; - oneMinusCos = 1.0f - cosAngle; - - rotMat.m[0][0] = (oneMinusCos * xx) + cosAngle; - rotMat.m[0][1] = (oneMinusCos * xy) - zs; - rotMat.m[0][2] = (oneMinusCos * zx) + ys; - rotMat.m[0][3] = 0.0F; - - rotMat.m[1][0] = (oneMinusCos * xy) + zs; - rotMat.m[1][1] = (oneMinusCos * yy) + cosAngle; - rotMat.m[1][2] = (oneMinusCos * yz) - xs; - rotMat.m[1][3] = 0.0F; - - rotMat.m[2][0] = (oneMinusCos * zx) - ys; - rotMat.m[2][1] = (oneMinusCos * yz) + xs; - rotMat.m[2][2] = (oneMinusCos * zz) + cosAngle; - rotMat.m[2][3] = 0.0F; - - rotMat.m[3][0] = 0.0F; - rotMat.m[3][1] = 0.0F; - rotMat.m[3][2] = 0.0F; - rotMat.m[3][3] = 1.0F; - - esMatrixMultiply( result, &rotMat, result ); - } -} - -void -esFrustum(ESMatrix *result, float left, float right, float bottom, float top, float nearZ, float farZ) -{ - float deltaX = right - left; - float deltaY = top - bottom; - float deltaZ = farZ - nearZ; - ESMatrix frust; - - if ( (nearZ <= 0.0f) || (farZ <= 0.0f) || - (deltaX <= 0.0f) || (deltaY <= 0.0f) || (deltaZ <= 0.0f) ) - return; - - frust.m[0][0] = 2.0f * nearZ / deltaX; - frust.m[0][1] = frust.m[0][2] = frust.m[0][3] = 0.0f; - - frust.m[1][1] = 2.0f * nearZ / deltaY; - frust.m[1][0] = frust.m[1][2] = frust.m[1][3] = 0.0f; - - frust.m[2][0] = (right + left) / deltaX; - frust.m[2][1] = (top + bottom) / deltaY; - frust.m[2][2] = -(nearZ + farZ) / deltaZ; - frust.m[2][3] = -1.0f; - - frust.m[3][2] = -2.0f * nearZ * farZ / deltaZ; - frust.m[3][0] = frust.m[3][1] = frust.m[3][3] = 0.0f; - - esMatrixMultiply(result, &frust, result); -} - - -void -esPerspective(ESMatrix *result, float fovy, float aspect, float nearZ, float farZ) -{ - GLfloat frustumW, frustumH; - - frustumH = tanf( fovy / 360.0f * PI ) * nearZ; - frustumW = frustumH * aspect; - - esFrustum( result, -frustumW, frustumW, -frustumH, frustumH, nearZ, farZ ); -} - -void -esOrtho(ESMatrix *result, float left, float right, float bottom, float top, float nearZ, float farZ) -{ - float deltaX = right - left; - float deltaY = top - bottom; - float deltaZ = farZ - nearZ; - ESMatrix ortho; - - if ( (deltaX == 0.0f) || (deltaY == 0.0f) || (deltaZ == 0.0f) ) - return; - - esMatrixLoadIdentity(&ortho); - ortho.m[0][0] = 2.0f / deltaX; - ortho.m[3][0] = -(right + left) / deltaX; - ortho.m[1][1] = 2.0f / deltaY; - ortho.m[3][1] = -(top + bottom) / deltaY; - ortho.m[2][2] = -2.0f / deltaZ; - ortho.m[3][2] = -(nearZ + farZ) / deltaZ; - - esMatrixMultiply(result, &ortho, result); -} - - -void -esMatrixMultiply(ESMatrix *result, ESMatrix *srcA, ESMatrix *srcB) -{ - ESMatrix tmp; - int i; - - for (i=0; i<4; i++) - { - tmp.m[i][0] = (srcA->m[i][0] * srcB->m[0][0]) + - (srcA->m[i][1] * srcB->m[1][0]) + - (srcA->m[i][2] * srcB->m[2][0]) + - (srcA->m[i][3] * srcB->m[3][0]) ; - - tmp.m[i][1] = (srcA->m[i][0] * srcB->m[0][1]) + - (srcA->m[i][1] * srcB->m[1][1]) + - (srcA->m[i][2] * srcB->m[2][1]) + - (srcA->m[i][3] * srcB->m[3][1]) ; - - tmp.m[i][2] = (srcA->m[i][0] * srcB->m[0][2]) + - (srcA->m[i][1] * srcB->m[1][2]) + - (srcA->m[i][2] * srcB->m[2][2]) + - (srcA->m[i][3] * srcB->m[3][2]) ; - - tmp.m[i][3] = (srcA->m[i][0] * srcB->m[0][3]) + - (srcA->m[i][1] * srcB->m[1][3]) + - (srcA->m[i][2] * srcB->m[2][3]) + - (srcA->m[i][3] * srcB->m[3][3]) ; - } - memcpy(result, &tmp, sizeof(ESMatrix)); -} - - -void -esMatrixLoadIdentity(ESMatrix *result) -{ - memset(result, 0x0, sizeof(ESMatrix)); - result->m[0][0] = 1.0f; - result->m[1][1] = 1.0f; - result->m[2][2] = 1.0f; - result->m[3][3] = 1.0f; -} - diff --git a/kmscube/esTransform.cpp b/kmscube/esTransform.cpp new file mode 100644 index 0000000..899c038 --- /dev/null +++ b/kmscube/esTransform.cpp @@ -0,0 +1,235 @@ +// +// Book: OpenGL(R) ES 2.0 Programming Guide +// Authors: Aaftab Munshi, Dan Ginsburg, Dave Shreiner +// ISBN-10: 0321502795 +// ISBN-13: 9780321502797 +// Publisher: Addison-Wesley Professional +// URLs: http://safari.informit.com/9780321563835 +// http://www.opengles-book.com +// + +/* + * (c) 2009 Aaftab Munshi, Dan Ginsburg, Dave Shreiner + * + * 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. + */ + +// ESUtil.c +// +// A utility library for OpenGL ES. This library provides a +// basic common framework for the example applications in the +// OpenGL ES 2.0 Programming Guide. +// + +/// +// Includes +// +#include "esTransform.h" +#include +#include + +#define PI 3.1415926535897932384626433832795f + +void +esScale(ESMatrix *result, GLfloat sx, GLfloat sy, GLfloat sz) +{ + result->m[0][0] *= sx; + result->m[0][1] *= sx; + result->m[0][2] *= sx; + result->m[0][3] *= sx; + + result->m[1][0] *= sy; + result->m[1][1] *= sy; + result->m[1][2] *= sy; + result->m[1][3] *= sy; + + result->m[2][0] *= sz; + result->m[2][1] *= sz; + result->m[2][2] *= sz; + result->m[2][3] *= sz; +} + +void +esTranslate(ESMatrix *result, GLfloat tx, GLfloat ty, GLfloat tz) +{ + result->m[3][0] += (result->m[0][0] * tx + result->m[1][0] * ty + result->m[2][0] * tz); + result->m[3][1] += (result->m[0][1] * tx + result->m[1][1] * ty + result->m[2][1] * tz); + result->m[3][2] += (result->m[0][2] * tx + result->m[1][2] * ty + result->m[2][2] * tz); + result->m[3][3] += (result->m[0][3] * tx + result->m[1][3] * ty + result->m[2][3] * tz); +} + +void +esRotate(ESMatrix *result, GLfloat angle, GLfloat x, GLfloat y, GLfloat z) +{ + GLfloat sinAngle, cosAngle; + GLfloat mag = sqrtf(x * x + y * y + z * z); + + sinAngle = sinf ( angle * PI / 180.0f ); + cosAngle = cosf ( angle * PI / 180.0f ); + if ( mag > 0.0f ) + { + GLfloat xx, yy, zz, xy, yz, zx, xs, ys, zs; + GLfloat oneMinusCos; + ESMatrix rotMat; + + x /= mag; + y /= mag; + z /= mag; + + xx = x * x; + yy = y * y; + zz = z * z; + xy = x * y; + yz = y * z; + zx = z * x; + xs = x * sinAngle; + ys = y * sinAngle; + zs = z * sinAngle; + oneMinusCos = 1.0f - cosAngle; + + rotMat.m[0][0] = (oneMinusCos * xx) + cosAngle; + rotMat.m[0][1] = (oneMinusCos * xy) - zs; + rotMat.m[0][2] = (oneMinusCos * zx) + ys; + rotMat.m[0][3] = 0.0F; + + rotMat.m[1][0] = (oneMinusCos * xy) + zs; + rotMat.m[1][1] = (oneMinusCos * yy) + cosAngle; + rotMat.m[1][2] = (oneMinusCos * yz) - xs; + rotMat.m[1][3] = 0.0F; + + rotMat.m[2][0] = (oneMinusCos * zx) - ys; + rotMat.m[2][1] = (oneMinusCos * yz) + xs; + rotMat.m[2][2] = (oneMinusCos * zz) + cosAngle; + rotMat.m[2][3] = 0.0F; + + rotMat.m[3][0] = 0.0F; + rotMat.m[3][1] = 0.0F; + rotMat.m[3][2] = 0.0F; + rotMat.m[3][3] = 1.0F; + + esMatrixMultiply( result, &rotMat, result ); + } +} + +void +esFrustum(ESMatrix *result, float left, float right, float bottom, float top, float nearZ, float farZ) +{ + float deltaX = right - left; + float deltaY = top - bottom; + float deltaZ = farZ - nearZ; + ESMatrix frust; + + if ( (nearZ <= 0.0f) || (farZ <= 0.0f) || + (deltaX <= 0.0f) || (deltaY <= 0.0f) || (deltaZ <= 0.0f) ) + return; + + frust.m[0][0] = 2.0f * nearZ / deltaX; + frust.m[0][1] = frust.m[0][2] = frust.m[0][3] = 0.0f; + + frust.m[1][1] = 2.0f * nearZ / deltaY; + frust.m[1][0] = frust.m[1][2] = frust.m[1][3] = 0.0f; + + frust.m[2][0] = (right + left) / deltaX; + frust.m[2][1] = (top + bottom) / deltaY; + frust.m[2][2] = -(nearZ + farZ) / deltaZ; + frust.m[2][3] = -1.0f; + + frust.m[3][2] = -2.0f * nearZ * farZ / deltaZ; + frust.m[3][0] = frust.m[3][1] = frust.m[3][3] = 0.0f; + + esMatrixMultiply(result, &frust, result); +} + + +void +esPerspective(ESMatrix *result, float fovy, float aspect, float nearZ, float farZ) +{ + GLfloat frustumW, frustumH; + + frustumH = tanf( fovy / 360.0f * PI ) * nearZ; + frustumW = frustumH * aspect; + + esFrustum( result, -frustumW, frustumW, -frustumH, frustumH, nearZ, farZ ); +} + +void +esOrtho(ESMatrix *result, float left, float right, float bottom, float top, float nearZ, float farZ) +{ + float deltaX = right - left; + float deltaY = top - bottom; + float deltaZ = farZ - nearZ; + ESMatrix ortho; + + if ( (deltaX == 0.0f) || (deltaY == 0.0f) || (deltaZ == 0.0f) ) + return; + + esMatrixLoadIdentity(&ortho); + ortho.m[0][0] = 2.0f / deltaX; + ortho.m[3][0] = -(right + left) / deltaX; + ortho.m[1][1] = 2.0f / deltaY; + ortho.m[3][1] = -(top + bottom) / deltaY; + ortho.m[2][2] = -2.0f / deltaZ; + ortho.m[3][2] = -(nearZ + farZ) / deltaZ; + + esMatrixMultiply(result, &ortho, result); +} + + +void +esMatrixMultiply(ESMatrix *result, ESMatrix *srcA, ESMatrix *srcB) +{ + ESMatrix tmp; + int i; + + for (i=0; i<4; i++) + { + tmp.m[i][0] = (srcA->m[i][0] * srcB->m[0][0]) + + (srcA->m[i][1] * srcB->m[1][0]) + + (srcA->m[i][2] * srcB->m[2][0]) + + (srcA->m[i][3] * srcB->m[3][0]) ; + + tmp.m[i][1] = (srcA->m[i][0] * srcB->m[0][1]) + + (srcA->m[i][1] * srcB->m[1][1]) + + (srcA->m[i][2] * srcB->m[2][1]) + + (srcA->m[i][3] * srcB->m[3][1]) ; + + tmp.m[i][2] = (srcA->m[i][0] * srcB->m[0][2]) + + (srcA->m[i][1] * srcB->m[1][2]) + + (srcA->m[i][2] * srcB->m[2][2]) + + (srcA->m[i][3] * srcB->m[3][2]) ; + + tmp.m[i][3] = (srcA->m[i][0] * srcB->m[0][3]) + + (srcA->m[i][1] * srcB->m[1][3]) + + (srcA->m[i][2] * srcB->m[2][3]) + + (srcA->m[i][3] * srcB->m[3][3]) ; + } + memcpy(result, &tmp, sizeof(ESMatrix)); +} + + +void +esMatrixLoadIdentity(ESMatrix *result) +{ + memset(result, 0x0, sizeof(ESMatrix)); + result->m[0][0] = 1.0f; + result->m[1][1] = 1.0f; + result->m[2][2] = 1.0f; + result->m[3][3] = 1.0f; +} + -- cgit v1.2.3