Nvidia old driver, glDrawArrays Exception Access Violation

Question

Our application crashes on old Nvidia drivers..

Debug code is here

Looking around, here they say it is often due to an incorrect vertex attribute setup

This is how I setup my vbo and vao:

        /**
         * Init Vbo/vao.
         */
        float[] vertexData = new float[]{
            0, 0,
            1, 0,
            1, 1};

        debugVbo = new int[1];
        gl3.glGenBuffers(1, debugVbo, 0);

        gl3.glBindBuffer(GL3.GL_ARRAY_BUFFER, debugVbo[0]);
        {
            FloatBuffer buffer = GLBuffers.newDirectFloatBuffer(vertexData);

            gl3.glBufferData(GL3.GL_ARRAY_BUFFER, vertexData.length * Float.BYTES, buffer, GL3.GL_STATIC_DRAW);
        }
        gl3.glBindBuffer(GL3.GL_ARRAY_BUFFER, 0);

        debugVao = new int[1];
        gl3.glGenVertexArrays(1, debugVao, 0);
        gl3.glBindVertexArray(debugVao[0]);
        {
            gl3.glBindBuffer(GL3.GL_ARRAY_BUFFER, debugVbo[0]);
            {
                gl3.glEnableVertexAttribArray(0);
                {
                    gl3.glVertexAttribPointer(0, 2, GL3.GL_FLOAT, false, 0, 0);
                }
            }
            gl3.glBindBuffer(GL3.GL_ARRAY_BUFFER, 0);
        }
        gl3.glBindVertexArray(0);
    }

And this is how I render:

public static void render(GL3 gl3) {

gl3.glClear(GL3.GL_DEPTH_BUFFER_BIT | GL3.GL_COLOR_BUFFER_BIT);

gl3.glUseProgram(textureProgram);
{
    gl3.glBindVertexArray(debugVao[0]);
    {
        gl3.glActiveTexture(GL3.GL_TEXTURE0);
        gl3.glBindTexture(GL3.GL_TEXTURE_2D, texture[0]);
        gl3.glBindSampler(0, EC_Samplers.pool[EC_Samplers.Id.clampToEdge_nearest_0maxAn.ordinal()]);
        {
            gl3.glDrawArrays(GL3.GL_TRIANGLES, 0, 3);
        }
        gl3.glBindTexture(GL3.GL_TEXTURE_2D, 0);
        gl3.glBindSampler(0, 0);
    }
    gl3.glBindVertexArray(0);
}
gl3.glUseProgram(0);
}

This is my VS:

#version 330

layout (location = 0) in vec2 position;

uniform mat4 modelToCameraMatrix;
uniform mat4 cameraToClipMatrix;

out vec2 fragmentUV;

void main()
{
    gl_Position = cameraToClipMatrix * modelToCameraMatrix * vec4(position, 0, 1);

    fragmentUV = position;
}

And my FS:

#version 330

in vec2 fragmentUV;

out vec4 outputColor;

uniform sampler2D textureNode;

void main()
{
    outputColor = texture(textureNode, fragmentUV);
}

I read and re-read the same code since 2 days now, I can't find anything wrong. I tried also defining a stride of 2*4=8, but same outcome..

Answer 1

I can't believe it.

Problem lied somewhere else, where I was initializing my samplers

public static void init(GL3 gl3) {

    pool = new int[Id.size.ordinal()];

    gl3.glGenSamplers(Id.size.ordinal(), pool, 0);

    gl3.glSamplerParameteri(pool[Id.clampToEdge_nearest_0maxAn.ordinal()],
            GL3.GL_TEXTURE_WRAP_S, GL3.GL_CLAMP_TO_EDGE);
    gl3.glSamplerParameteri(pool[Id.clampToEdge_nearest_0maxAn.ordinal()],
            GL3.GL_TEXTURE_WRAP_T, GL3.GL_CLAMP_TO_EDGE);
    gl3.glSamplerParameteri(pool[Id.clampToEdge_nearest_0maxAn.ordinal()],
            GL3.GL_TEXTURE_MIN_FILTER, GL3.GL_NEAREST);
    gl3.glSamplerParameteri(pool[Id.clampToEdge_nearest_0maxAn.ordinal()],
            GL3.GL_TEXTURE_MAG_FILTER, GL3.GL_NEAREST);
    gl3.glSamplerParameteri(pool[Id.clampToEdge_nearest_0maxAn.ordinal()],
            GL3.GL_TEXTURE_MAX_ANISOTROPY_EXT, 0);
}

The crash was caused by setting the max anisotropy to 0... 1 resolved the crash..

Ps: also glSamplerParameterf instead glSamplerParameteri since it is a float value..

Anyway it is weird because that code was since since a lot of time and never trigger the violation previously.. I don't know.. maybe some latter code modification made in a way that the Nvidia driver couldn't detect anymore the problem and fix it by itself, who knows..