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Fixed extension retrieval for OpenGL ES 3+.

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This commit is contained in:
Camilla Berglund 2015-01-06 20:21:00 +01:00
parent 6c7509c942
commit d311e28038
2 changed files with 18 additions and 17 deletions
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2
README.md
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@ -99,6 +99,8 @@ GLFW bundles a number of dependencies in the `deps/` directory.
- Bugfix: The particles example was not linked against the threading library - Bugfix: The particles example was not linked against the threading library
- Bugfix: The cursor was not positioned over newly created full screen windows - Bugfix: The cursor was not positioned over newly created full screen windows
- Bugfix: The queried cursor position was not always up-to-date - Bugfix: The queried cursor position was not always up-to-date
- Bugfix: `glfwExtensionSupported` always failed for OpenGL ES 3.0 and later if
the library was compiled for OpenGL ES
- [Cocoa] Added `_GLFW_USE_RETINA` to control whether windows will use the full - [Cocoa] Added `_GLFW_USE_RETINA` to control whether windows will use the full
resolution on Retina displays resolution on Retina displays
- [Cocoa] Made content view subclass of `NSOpenGLView` - [Cocoa] Made content view subclass of `NSOpenGLView`

33
src/context.c
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@ -588,7 +588,6 @@ GLFWAPI void glfwSwapInterval(int interval)
GLFWAPI int glfwExtensionSupported(const char* extension) GLFWAPI int glfwExtensionSupported(const char* extension)
{ {
const GLubyte* extensions;
_GLFWwindow* window; _GLFWwindow* window;
_GLFW_REQUIRE_INIT_OR_RETURN(GL_FALSE); _GLFW_REQUIRE_INIT_OR_RETURN(GL_FALSE);
@ -606,23 +605,8 @@ GLFWAPI int glfwExtensionSupported(const char* extension)
return GL_FALSE; return GL_FALSE;
} }
if (window->context.major < 3)
{
// Check if extension is in the old style OpenGL extensions string
extensions = glGetString(GL_EXTENSIONS);
if (!extensions)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Failed to retrieve extension string");
return GL_FALSE;
}
if (_glfwStringInExtensionString(extension, extensions))
return GL_TRUE;
}
#if defined(_GLFW_USE_OPENGL) #if defined(_GLFW_USE_OPENGL)
else if (window->context.major >= 3)
{ {
int i; int i;
GLint count; GLint count;
@ -645,7 +629,22 @@ GLFWAPI int glfwExtensionSupported(const char* extension)
return GL_TRUE; return GL_TRUE;
} }
} }
else
#endif // _GLFW_USE_OPENGL #endif // _GLFW_USE_OPENGL
{
// Check if extension is in the old style OpenGL extensions string
const GLubyte* extensions = glGetString(GL_EXTENSIONS);
if (!extensions)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Failed to retrieve extension string");
return GL_FALSE;
}
if (_glfwStringInExtensionString(extension, extensions))
return GL_TRUE;
}
// Check if extension is in the platform-specific string // Check if extension is in the platform-specific string
return _glfwPlatformExtensionSupported(extension); return _glfwPlatformExtensionSupported(extension);