216 lines
3.8 KiB
C
216 lines
3.8 KiB
C
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#include <stdlib.h>
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#include <stdio.h>
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#include <math.h>
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#include <string.h>
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#include <time.h>
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#include <windows.h>
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#include <gl\gl.h>
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#include <gl\glu.h>
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#include <gl\glaux.h>
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#define PI ((float)3.14159265358979323846)
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#define WIDTH 512
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#define HEIGHT 512
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BOOL fSingle = FALSE;
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BOOL fRotate = FALSE;
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BOOL fColor = FALSE;
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BOOL fNormal = FALSE;
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BOOL fTexture = FALSE;
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DWORD dwTotalMillis = 0;
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int iTotalPoints = 0;
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#define DEF_PRIM_POINTS 250
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#define DEF_PRIMS 250
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int iPrims = DEF_PRIMS;
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int iPrimPoints = DEF_PRIM_POINTS;
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int iPoints = DEF_PRIMS*DEF_PRIM_POINTS;
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float fRotAngle = 0.0f;
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#define MAX_COLOR (3*3)
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float afColors[MAX_COLOR] =
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{
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1.0f, 0.0f, 0.0f,
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0.0f, 1.0f, 0.0f,
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0.0f, 0.0f, 1.0f
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};
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float *pfCurColor;
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void Init(void)
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{
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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gluPerspective(45, 1, .01, 15);
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gluLookAt(0, 0, 3, 0, 0, 0, 0, 1, 0);
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glMatrixMode(GL_MODELVIEW);
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}
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void ResetTotals(void)
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{
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dwTotalMillis = 0;
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iTotalPoints = 0;
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}
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void Redraw(void)
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{
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DWORD dwMillis;
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char szMsg[80];
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int iPt, iPrim;
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float fX, fY, fDx, fDy;
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dwMillis = GetTickCount();
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glClear(GL_COLOR_BUFFER_BIT);
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if (fRotate)
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{
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glLoadIdentity();
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glRotatef(fRotAngle, 0.0f, 0.0f, 1.0f);
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fRotAngle += 2.0f;
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}
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fDx = 2.0f/(iPrimPoints-1);
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fDy = 2.0f/(iPrims-1);
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fY = -1.0f;
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pfCurColor = afColors;
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for (iPrim = 0; iPrim < iPrims; iPrim++)
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{
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fX = -1.0f;
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glBegin(GL_POINTS);
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for (iPt = 0; iPt < iPrimPoints; iPt++)
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{
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if (fColor)
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{
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glColor3fv(pfCurColor);
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pfCurColor += 3;
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if (pfCurColor >= afColors+MAX_COLOR)
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{
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pfCurColor = afColors;
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}
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}
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if (fNormal)
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{
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glNormal3f(0.0f, 0.0f, 1.0f);
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}
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if (fTexture)
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{
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glTexCoord2f(0.5f, 0.5f);
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}
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glVertex3f(fX, fY, 0.0f);
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fX += fDx;
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}
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glEnd();
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fY += fDy;
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}
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if (fSingle)
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{
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glFlush();
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}
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else
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{
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auxSwapBuffers();
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}
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dwMillis = GetTickCount()-dwMillis;
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dwTotalMillis += dwMillis;
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iTotalPoints += iPoints;
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if (dwTotalMillis > 1000)
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{
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sprintf(szMsg, "%.3lf pts/sec",
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(double)iTotalPoints*1000.0/dwTotalMillis);
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SetWindowText(auxGetHWND(), szMsg);
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ResetTotals();
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}
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}
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void Reshape(GLsizei w, GLsizei h)
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{
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glViewport(0, 0, w, h);
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}
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void Keyc(void)
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{
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ResetTotals();
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fColor = !fColor;
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}
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void Keyn(void)
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{
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ResetTotals();
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fNormal = !fNormal;
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}
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void KeyP(void)
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{
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int iv1[1];
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ResetTotals();
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glGetIntegerv(GL_CLIP_VOLUME_CLIPPING_HINT_EXT, &iv1[0]);
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if (iv1[0] == GL_FASTEST)
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{
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glHint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT, GL_DONT_CARE);
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}
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else
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{
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glHint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT, GL_FASTEST);
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}
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}
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void Keyt(void)
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{
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ResetTotals();
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fTexture = !fTexture;
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}
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void __cdecl main(int argc, char **argv)
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{
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GLenum eMode;
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while (--argc > 0)
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{
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argv++;
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if (!strcmp(*argv, "-sb"))
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{
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fSingle = TRUE;
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}
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else if (!strcmp(*argv, "-rotate"))
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{
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fRotate = TRUE;
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}
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}
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auxInitPosition(10, 10, WIDTH, HEIGHT);
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eMode = AUX_RGB;
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if (!fSingle)
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{
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eMode |= AUX_DOUBLE;
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}
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auxInitDisplayMode(eMode);
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auxInitWindow("Vertex API Timing");
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auxReshapeFunc(Reshape);
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auxIdleFunc(Redraw);
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auxKeyFunc(AUX_c, Keyc);
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auxKeyFunc(AUX_n, Keyn);
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auxKeyFunc(AUX_P, KeyP);
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auxKeyFunc(AUX_t, Keyt);
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Init();
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auxMainLoop(Redraw);
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}
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