Attachment 41180 Details for Bug 32449 – VBO flag test case

VBO flag test case

vbo-bug-testcase.c (text/x-csrc), 1.70 KB, created by Sean Middleditch on 2010-12-16 10:39:03 UTC

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Creator: Sean Middleditch

Created: 2010-12-16 10:39:03 UTC

Size: 1.70 KB

patch

obsolete

>#include <stdio.h>
>#include <string.h>
>#include <GL/glew.h>
>#include <GL/glut.h>
>#include <GL/gl.h>
>
>static const float vertices[3][5] = {
>	{  1.0f,  1.0f, 1.0f, 0.0f, 0.0f },
>	{  1.0f, -1.0f, 0.0f, 0.0f, 1.0f },
>	{ -1.0f,  1.0f, 0.0f, 1.0f, 0.0f }
>};
>
>static GLuint vbo;
>
>static void display() {
>	glClear(GL_COLOR_BUFFER_BIT);
>
>	glBindFramebuffer(GL_FRAMEBUFFER, 0);
>	glBindBuffer(GL_ARRAY_BUFFER, vbo);
>
>	glVertexPointer(2, GL_FLOAT, sizeof(vertices[0]), 0);
>	glColorPointer(3, GL_FLOAT, sizeof(vertices[0]), (void*)8);
>	glEnableClientState(GL_VERTEX_ARRAY);
>	glEnableClientState(GL_COLOR_ARRAY);
>
>	/* CRASH HAPPENS WITHIN THIS CALL, CAUSE IS FURTHER BELOW */
>	glDrawArrays(GL_TRIANGLES, 0, 3);
>
>	glDisableClientState(GL_COLOR_ARRAY);
>	glDisableClientState(GL_VERTEX_ARRAY);
>
>	glBindBuffer(GL_ARRAY_BUFFER, 0);
>	glBindFramebuffer(GL_FRAMEBUFFER, 0);
>
>	glutSwapBuffers();
>}
>
>static void keyboard(unsigned char key, int x, int y) {
>	exit(0);
>}
>
>int main(int argc, char** argv) {
>	glutInit(&argc, argv);
>	glutInitWindowSize(800, 600);
>	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
>	glutCreateWindow("glwrap");
>
>	glewInit();
>
>	glMatrixMode(GL_PROJECTION);
>	glLoadIdentity();
>	glOrtho(-4, 4, -3, 3, -1, 1);
>	glMatrixMode(GL_MODELVIEW);
>	glLoadIdentity();
>
>	glGenBuffers(1, &vbo);
>	glBindBuffer(GL_ARRAY_BUFFER, vbo);
>
>#if 1
>	/* THIS IS THE LINE THAT PROVOKES THE CRASH:
>	 * NOTE THE USAGE PARAMETER IS NOT VALID;
>	 * CHANGE THE #if TO 0 AND CRASH GOES AWAY */
>	glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, 1234);
>#else
>	glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
>#endif
>
>	glViewport(0, 0, 800, 600);
>
>	glutDisplayFunc(display);
>	glutKeyboardFunc(keyboard);
>	glutMainLoop();
>	return 0;
>}

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Attachments on bug 32449: 41180 | 41221

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