OpenGL 3.0 in Catalyst 9.1

[Mars_999]

//vs
void main(void)
{
gl_Position = ftransform();
}

//fs
void main(void)
{
gl_FragColor = vec4( 0.4, 0.0, 0.9, 1.0 );
}

[skynet]

An empty fragment shader is perfectly legal. It just writes undefined values to the color output then.

[martinsm]

Mars_999: what do you want to tell with that? There is no such thing as ftransform() and gl_FragColor ir forward compatible context.

[k_szczech]

So you all went back to writting "hello world" shaders?
"OpenGL 3.0 - A Big Step in the Right Direction"

Of course it's not OpenGL's fault, that drivers don't work, but perhaps clean API would address this problem better...

[rpggamer]

For the shader problem, try defining GLSL version 1.30 in the shader. That seems to of fixed the compile errors I was getting. Kind of strange though, hopefully they fix these problems with their next release.

[martinsm]

Hmm, adding #version 130 helps.
With following fragment shader:

#version 130
in vec3 fragment_color;
out vec3 screen_color;
void main()
{
  screen_color = fragment_color;
}

I am getting following error:

Fragment shader compile error:
Fragment shader failed to compile with the following errors:
ERROR: 0:2: '' : Declaration must include a precision qualifier or the default precision must have been previously declared.
ERROR: 0:3: '' : Declaration must include a precision qualifier or the default precision must have been previously declared.
ERROR:  compilation errors.  No code generated.

I changed shader to:

#version 130
precision mediump float;
in vec3 fragment_color;
out vec3 screen_color;
void main()
{
  screen_color = fragment_color;
}

Then everything compiles and links fine (after adding same precision to vertex shader) Thanks rpggamer! I assumed that GL3 forward compatible context by default expects GLSL version 1.30, but I guess you can expect many strange things from ATI

Now when shader program compiles and links fine, I'm getting next error - glBindBuffer(GL_ARRAY_BUFFER, id) generates GL_INVALID_OPERATION error in forward compatbile context. It doesn't matter if VAO is bound or not. id is generated correctly with glGenBuffers. Any suggestions here?
Even glBindBuffer(GL_ARRAY_BUFFER, 0) generates same GL_INVALID_OPERATION.

[martinsm]

9.2 driver fixed some things.

glGetString(GL_VERSION) now doesn't crash - it returns "3.0.8494 Release".

glGetStringi(GL_EXTENSIONS, x) now also works - returns correct extension strings.

glGetString(GL_SHADING_LANGUAGE_VERSION) also returns correct value - "1.30".

But still - I can not glBindBuffer(GL_ARRAY_BUFFER, id) with correct id in forward compatible context.