+++ /dev/null
-/**
- * Random rendering, to check for crashes, hangs, etc.
- *
- * Brian Paul
- * 21 June 2007
- */
-
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-
-static int Win;
-static GLboolean Anim = GL_TRUE;
-static int Width = 200, Height = 200;
-static int DB = 0;
-static int MinVertexCount = 0, MaxVertexCount = 1000;
-static int Count = 0;
-
-struct vertex
-{
- int type;
- float v[4];
-};
-
-static int BufferSize = 10000;
-static struct vertex *Vbuffer = NULL;
-static int Vcount, Vprim;
-
-enum {
- BEGIN,
- END,
- VERTEX2,
- VERTEX3,
- VERTEX4,
- COLOR3,
- COLOR4,
- TEX2,
- TEX3,
- TEX4,
- SECCOLOR3,
- NORMAL3
-};
-
-
-
-/**
- * This can be called from within gdb after a crash:
- * (gdb) call ReportState()
- */
-static void
-ReportState(void)
-{
- static const struct {
- GLenum token;
- char *str;
- GLenum type;
- } state [] = {
- { GL_ALPHA_TEST, "GL_ALPHA_TEST", GL_INT },
- { GL_BLEND, "GL_BLEND", GL_INT },
- { GL_CLIP_PLANE0, "GL_CLIP_PLANE0", GL_INT },
- { GL_DEPTH_TEST, "GL_DEPTH_TEST", GL_INT },
- { GL_LIGHTING, "GL_LIGHTING", GL_INT },
- { GL_LINE_WIDTH, "GL_LINE_WIDTH", GL_FLOAT },
- { GL_POINT_SIZE, "GL_POINT_SIZE", GL_FLOAT },
- { GL_SHADE_MODEL, "GL_SHADE_MODEL", GL_INT },
- { GL_SCISSOR_TEST, "GL_SCISSOR_TEST", GL_INT },
- { 0, NULL, 0 }
- };
-
- GLint i;
-
- for (i = 0; state[i].token; i++) {
- if (state[i].type == GL_INT) {
- GLint v;
- glGetIntegerv(state[i].token, &v);
- printf("%s = %d\n", state[i].str, v);
- }
- else {
- GLfloat v;
- glGetFloatv(state[i].token, &v);
- printf("%s = %f\n", state[i].str, v);
- }
- }
-}
-
-static void
-PrintVertex(const char *f, const struct vertex *v, int sz)
-{
- int i;
- printf("%s(", f);
- for (i = 0; i < sz; i++) {
- printf("%g%s", v->v[i], (i == sz-1) ? "" : ", ");
- }
- printf(");\n");
-}
-
-/**
- * This can be called from within gdb after a crash:
- * (gdb) call ReportState()
- */
-static void
-LastPrim(void)
-{
- int i;
- for (i = 0; i < Vcount; i++) {
- switch (Vbuffer[i].type) {
- case BEGIN:
- printf("glBegin(%d);\n", (int) Vbuffer[i].v[0]);
- break;
- case END:
- printf("glEnd();\n");
- break;
- case VERTEX2:
- PrintVertex("glVertex2f", Vbuffer + i, 2);
- break;
- case VERTEX3:
- PrintVertex("glVertex3f", Vbuffer + i, 3);
- break;
- case VERTEX4:
- PrintVertex("glVertex4f", Vbuffer + i, 4);
- break;
- case COLOR3:
- PrintVertex("glColor3f", Vbuffer + i, 3);
- break;
- case COLOR4:
- PrintVertex("glColor4f", Vbuffer + i, 4);
- break;
- case TEX2:
- PrintVertex("glTexCoord2f", Vbuffer + i, 2);
- break;
- case TEX3:
- PrintVertex("glTexCoord3f", Vbuffer + i, 3);
- break;
- case TEX4:
- PrintVertex("glTexCoord4f", Vbuffer + i, 4);
- break;
- case SECCOLOR3:
- PrintVertex("glSecondaryColor3f", Vbuffer + i, 3);
- break;
- case NORMAL3:
- PrintVertex("glNormal3f", Vbuffer + i, 3);
- break;
- default:
- abort();
- }
- }
-}
-
-
-static int
-RandomInt(int max)
-{
- if (max == 0)
- return 0;
- return rand() % max;
-}
-
-static float
-RandomFloat(float min, float max)
-{
- int k = rand() % 10000;
- float x = min + (max - min) * k / 10000.0;
- return x;
-}
-
-/*
- * Return true if random number in [0,1] is <= percentile.
- */
-static GLboolean
-RandomChoice(float percentile)
-{
- return RandomFloat(0.0, 1.0) <= percentile;
-}
-
-static void
-RandomStateChange(void)
-{
- int k = RandomInt(19);
- switch (k) {
- case 0:
- glEnable(GL_BLEND);
- break;
- case 1:
- glDisable(GL_BLEND);
- break;
- case 2:
- glEnable(GL_ALPHA_TEST);
- break;
- case 3:
- glEnable(GL_ALPHA_TEST);
- break;
- case 4:
- glEnable(GL_DEPTH_TEST);
- break;
- case 5:
- glEnable(GL_DEPTH_TEST);
- break;
- case 6:
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- break;
- case 7:
- glPointSize(10.0);
- break;
- case 8:
- glPointSize(1.0);
- break;
- case 9:
- glLineWidth(10.0);
- break;
- case 10:
- glLineWidth(1.0);
- break;
- case 11:
- glEnable(GL_LIGHTING);
- break;
- case 12:
- glDisable(GL_LIGHTING);
- break;
- case 13:
- glEnable(GL_SCISSOR_TEST);
- break;
- case 14:
- glDisable(GL_SCISSOR_TEST);
- break;
- case 15:
- glEnable(GL_CLIP_PLANE0);
- break;
- case 16:
- glDisable(GL_CLIP_PLANE0);
- break;
- case 17:
- glShadeModel(GL_FLAT);
- break;
- case 18:
- glShadeModel(GL_SMOOTH);
- break;
- }
-}
-
-
-static void
-RandomPrimitive(void)
-{
- int i;
- int len = MinVertexCount + RandomInt(MaxVertexCount - MinVertexCount);
-
- Vprim = RandomInt(10);
-
- glBegin(Vprim);
- Vbuffer[Vcount].type = BEGIN;
- Vbuffer[Vcount].v[0] = Vprim;
- Vcount++;
-
- for (i = 0; i < len; i++) {
- int k = RandomInt(9);
- Vbuffer[Vcount].v[0] = RandomFloat(-3, 3);
- Vbuffer[Vcount].v[1] = RandomFloat(-3, 3);
- Vbuffer[Vcount].v[2] = RandomFloat(-3, 3);
- Vbuffer[Vcount].v[3] = RandomFloat(-3, 3);
- switch (k) {
- case 0:
- glVertex2fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = VERTEX2;
- break;
- case 1:
- glVertex3fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = VERTEX3;
- break;
- case 2:
- glVertex4fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = VERTEX4;
- break;
- case 3:
- glColor3fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = COLOR3;
- break;
- case 4:
- glColor4fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = COLOR4;
- break;
- case 5:
- glTexCoord2fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = TEX2;
- break;
- case 6:
- glTexCoord3fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = TEX3;
- break;
- case 7:
- glTexCoord4fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = TEX4;
- break;
- case 8:
- glSecondaryColor3fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = SECCOLOR3;
- break;
- case 9:
- glNormal3fv(Vbuffer[Vcount].v);
- Vbuffer[Vcount].type = NORMAL3;
- break;
- default:
- abort();
- }
- Vcount++;
-
- if (Vcount >= BufferSize - 2) {
- /* reset */
- Vcount = 0;
- }
- }
-
- Vbuffer[Vcount++].type = END;
-
- glEnd();
-}
-
-
-static void
-RandomDraw(void)
-{
- int i;
- GLboolean dlist = RandomChoice(0.1);
- if (dlist)
- glNewList(1, GL_COMPILE);
- for (i = 0; i < 3; i++) {
- RandomStateChange();
- }
- RandomPrimitive();
-
- if (dlist) {
- glEndList();
- glCallList(1);
- }
-}
-
-
-static void
-Idle(void)
-{
- glutPostRedisplay();
-}
-
-
-static void
-Draw(void)
-{
-#if 1
- RandomDraw();
- Count++;
-#else
- /* cut & paste temp code here */
-#endif
-
- assert(glGetError() == 0);
-
- if (DB)
- glutSwapBuffers();
- else
- glFinish();
-}
-
-
-static void
-Reshape(int width, int height)
-{
- Width = width;
- Height = height;
- glViewport(0, 0, width, height);
- glScissor(20, 20, Width-40, Height-40);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -15.0);
-}
-
-
-static void
-Key(unsigned char key, int x, int y)
-{
- (void) x;
- (void) y;
- switch (key) {
- case 27:
- glutDestroyWindow(Win);
- exit(0);
- break;
- }
- glutPostRedisplay();
-}
-
-
-static void
-Init(void)
-{
- static const GLdouble plane[4] = {1, 1, 0, 0};
- glDrawBuffer(GL_FRONT);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glEnable(GL_LIGHT0);
- glClipPlane(GL_CLIP_PLANE0, plane);
-
- Vbuffer = (struct vertex *)
- malloc(BufferSize * sizeof(struct vertex));
-
- /* silence warnings */
- (void) ReportState;
- (void) LastPrim;
-}
-
-
-static void
-ParseArgs(int argc, char *argv[])
-{
- int i;
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-s") == 0) {
- int j = atoi(argv[i + 1]);
- printf("Random seed value: %d\n", j);
- srand(j);
- i++;
- }
- else if (strcmp(argv[i], "-a") == 0) {
- i++;
- MinVertexCount = atoi(argv[i]);
- }
- else if (strcmp(argv[i], "-b") == 0) {
- i++;
- MaxVertexCount = atoi(argv[i]);
- }
- }
-}
-
-
-int
-main(int argc, char *argv[])
-{
- glutInit(&argc, argv);
- glutInitWindowPosition(0, 0);
- glutInitWindowSize(Width, Height);
- glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
- Win = glutCreateWindow(argv[0]);
- glewInit();
- ParseArgs(argc, argv);
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutDisplayFunc(Draw);
- if (Anim)
- glutIdleFunc(Idle);
- Init();
- glutMainLoop();
- return 0;
-}
projects / mesa.git / blobdiff