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Moved OpenGL context config verification into separate function.

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This commit is contained in:
Camilla Berglund 2011-03-04 15:00:19 +01:00
parent 9d6660a9ea
commit 7515ee0ef5
1 changed files with 67 additions and 56 deletions
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123
src/window.c
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@ -119,6 +119,71 @@ static void clearInputState(_GLFWwindow* window)
}
//========================================================================
// Checks whether the OpenGL part of the window config is sane
//========================================================================
static GLboolean isValidContextConfig(_GLFWwndconfig* wndconfig)
{
if (wndconfig->glMajor == 1 && wndconfig->glMinor > 5)
{
// OpenGL 1.x series ended with version 1.5
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
return GL_FALSE;
}
else if (wndconfig->glMajor == 2 && wndconfig->glMinor > 1)
{
// OpenGL 2.x series ended with version 2.1
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
return GL_FALSE;
}
else if (wndconfig->glMajor == 3 && wndconfig->glMinor > 3)
{
// OpenGL 3.x series ended with version 3.3
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
return GL_FALSE;
}
else
{
// For now, let everything else through
}
if (wndconfig->glProfile == GLFW_OPENGL_ES2_PROFILE)
{
if (wndconfig->glMajor != 2 || wndconfig->glMinor < 0)
{
// The OpenGL ES 2.0 profile is currently only defined for version
// 2.0 (see {WGL|GLX}_EXT_create_context_es2_profile), but for
// compatibility with future updates to OpenGL ES, we allow
// everything 2.x and let the driver report invalid 2.x versions
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL ES 2.x version requested");
return GL_FALSE;
}
}
else if (wndconfig->glProfile)
{
if (wndconfig->glMajor < 3 || (wndconfig->glMajor == 3 && wndconfig->glMinor < 2))
{
// Desktop OpenGL context profiles are only defined for version 3.2
// and above
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Context profiles only exist for OpenGL version 3.2 and above");
return GL_FALSE;
}
}
if (wndconfig->glForward && wndconfig->glMajor < 3)
{
// Forward-compatible contexts are only defined for OpenGL version 3.0 and above
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Forward compatibility only exist for OpenGL version 3.0 and above");
return GL_FALSE;
}
return GL_TRUE;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
@ -482,64 +547,10 @@ GLFWAPI GLFWwindow glfwOpenWindow(int width, int height,
// Clear for next open call
_glfwClearWindowHints();
if (wndconfig.glMajor == 1 && wndconfig.glMinor > 5)
// Check the OpenGL bits of the window config
if (!isValidContextConfig(&wndconfig))
{
// OpenGL 1.x series ended with version 1.5
glfwCloseWindow(window);
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
return GL_FALSE;
}
else if (wndconfig.glMajor == 2 && wndconfig.glMinor > 1)
{
// OpenGL 2.x series ended with version 2.1
glfwCloseWindow(window);
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
return GL_FALSE;
}
else if (wndconfig.glMajor == 3 && wndconfig.glMinor > 3)
{
// OpenGL 3.x series ended with version 3.3
glfwCloseWindow(window);
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
return GL_FALSE;
}
else
{
// For now, let everything else through
}
if (wndconfig.glProfile == GLFW_OPENGL_ES2_PROFILE)
{
if (wndconfig.glMajor != 2 || wndconfig.glMinor < 0)
{
// The OpenGL ES 2.0 profile is currently only defined for version
// 2.0 (see {WGL|GLX}_EXT_create_context_es2_profile), but for
// compatibility with future updates to OpenGL ES, we allow
// everything 2.x and let the driver report invalid versions
glfwCloseWindow(window);
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL ES 2.x version requested");
return GL_FALSE;
}
}
else if (wndconfig.glProfile)
{
if (wndconfig.glMajor < 3 || (wndconfig.glMajor == 3 && wndconfig.glMinor < 2))
{
// Desktop OpenGL context profiles are only defined for version 3.2
// and above
glfwCloseWindow(window);
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Context profiles only exist for OpenGL version 3.2 and above");
return GL_FALSE;
}
}
if (wndconfig.glForward && wndconfig.glMajor < 3)
{
// Forward-compatible contexts are only defined for OpenGL version 3.0 and above
glfwCloseWindow(window);
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Forward compatibility only exist for OpenGL version 3.0 and above");
return GL_FALSE;
}