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Moved more OpenGL logic to opengl.c.

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This commit is contained in:
Camilla Berglund
2011-03-07 14:55:11 +01:00
parent d1d550d1ab
commit 19be24afb7
3 changed files with 168 additions and 151 deletions
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src/window.c
+2 -115
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@@ -85,84 +85,6 @@ static void clearScrollOffsets(void)
}
//========================================================================
// Checks whether the OpenGL part of the window config is sane
//========================================================================
static GLboolean isValidContextConfig(_GLFWwndconfig* wndconfig)
{
if (wndconfig->glMajor < 1 || wndconfig->glMinor < 0)
{
// OpenGL 1.0 is the smallest valid version
_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
return GL_FALSE;
}
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->glProfile != GLFW_OPENGL_CORE_PROFILE &&
wndconfig->glProfile != GLFW_OPENGL_COMPAT_PROFILE)
{
_glfwSetError(GLFW_INVALID_ENUM, "glfwOpenWindow: Invalid OpenGL profile");
return GL_FALSE;
}
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 //////
//////////////////////////////////////////////////////////////////////////
@@ -361,7 +283,7 @@ GLFWAPI GLFWwindow glfwOpenWindow(int width, int height,
_glfwSetDefaultWindowHints();
// Check the OpenGL bits of the window config
if (!isValidContextConfig(&wndconfig))
if (!_glfwIsValidContextConfig(&wndconfig))
return GL_FALSE;
if (mode != GLFW_WINDOWED && mode != GLFW_FULLSCREEN)
@@ -416,47 +338,12 @@ GLFWAPI GLFWwindow glfwOpenWindow(int width, int height,
glfwMakeWindowCurrent(window);
_glfwPlatformRefreshWindowParams();
// As these are hard constraints when non-zero, we can simply copy them
window->glProfile = wndconfig.glProfile;
window->glForward = wndconfig.glForward;
_glfwParseGLVersion(&window->glMajor, &window->glMinor, &window->glRevision);
if (window->glMajor < wndconfig.glMajor ||
(window->glMajor == wndconfig.glMajor &&
window->glMinor < wndconfig.glMinor))
if (!_glfwIsValidContext(window, &wndconfig))
{
// The desired OpenGL version is greater than the actual version
// This only happens if the machine lacks {GLX|WGL}_ARB_create_context
// /and/ the user has requested an OpenGL version greater than 1.0
// For API consistency, we emulate the behavior of the
// {GLX|WGL}_ARB_create_context extension and fail here
glfwCloseWindow(window);
_glfwSetError(GLFW_VERSION_UNAVAILABLE, "glfwOpenWindow: The requested OpenGL version is not available");
return GL_FALSE;
}
if (window->glMajor > 2)
{
// OpenGL 3.0+ uses a different function for extension string retrieval
// We cache it here instead of in glfwExtensionSupported mostly to alert
// users as early as possible that their build may be broken
window->GetStringi = (PFNGLGETSTRINGIPROC) glfwGetProcAddress("glGetStringi");
if (!window->GetStringi)
{
// This is a very common problem among people who compile GLFW
// on X11/GLX using custom build systems, as it needs explicit
// configuration in order to work
glfwCloseWindow(window);
_glfwSetError(GLFW_PLATFORM_ERROR, "glfwOpenWindow: Entry point retrieval is broken; see the build documentation for your platform");
return GL_FALSE;
}
}
// The GLFW specification states that fullscreen windows have the cursor
// locked by default
if (mode == GLFW_FULLSCREEN)