Resubmit 35500: Added an application framework for demos. Ported hellotriangl...

third_party/gles_book_examples/Common/Source/esTransform.c

 //
 // 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
 //
 
 // 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 "esUtil.h"
 #include <math.h>
+#include <string.h>
 
 #define PI 3.1415926535897932384626433832795f
 
-void ESUTIL_API
-esScale(ESMatrix *result, GLfloat sx, GLfloat sy, GLfloat sz)
+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 ESUTIL_API
-esTranslate(ESMatrix *result, GLfloat tx, GLfloat ty, GLfloat tz)
+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 ESUTIL_API
-esRotate(ESMatrix *result, GLfloat angle, GLfloat x, GLfloat y, GLfloat z)
+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;
@@ skipping 31 matching lines @@
 
       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 ESUTIL_API
-esFrustum(ESMatrix *result, float left, float right, float bottom, float top, float nearZ, float farZ)
+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 ESUTIL_API 
-esPerspective(ESMatrix *result, float fovy, float aspect, float nearZ, float farZ)
+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 ESUTIL_API
-esOrtho(ESMatrix *result, float left, float right, float bottom, float top, float nearZ, float 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 ESUTIL_API
-esMatrixMultiply(ESMatrix *result, ESMatrix *srcA, ESMatrix *srcB)
+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]) ;
@@ skipping 10 matching lines @@
 
                 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 ESUTIL_API
-esMatrixLoadIdentity(ESMatrix *result)
+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;
 }
-