+++ /dev/null
-//========================================================================
-// GLFW 3.4 macOS - www.glfw.org
-//------------------------------------------------------------------------
-// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
-//
-// This software is provided 'as-is', without any express or implied
-// warranty. In no event will the authors be held liable for any damages
-// arising from the use of this software.
-//
-// Permission is granted to anyone to use this software for any purpose,
-// including commercial applications, and to alter it and redistribute it
-// freely, subject to the following restrictions:
-//
-// 1. The origin of this software must not be misrepresented; you must not
-// claim that you wrote the original software. If you use this software
-// in a product, an acknowledgment in the product documentation would
-// be appreciated but is not required.
-//
-// 2. Altered source versions must be plainly marked as such, and must not
-// be misrepresented as being the original software.
-//
-// 3. This notice may not be removed or altered from any source
-// distribution.
-//
-//========================================================================
-// It is fine to use C99 in this file because it will not be built with VS
-//========================================================================
-
-#include "internal.h"
-
-#include <unistd.h>
-#include <math.h>
-
-static void makeContextCurrentNSGL(_GLFWwindow* window)
-{
- @autoreleasepool {
-
- if (window)
- [window->context.nsgl.object makeCurrentContext];
- else
- [NSOpenGLContext clearCurrentContext];
-
- _glfwPlatformSetTls(&_glfw.contextSlot, window);
-
- } // autoreleasepool
-}
-
-static void swapBuffersNSGL(_GLFWwindow* window)
-{
- @autoreleasepool {
-
- // HACK: Simulate vsync with usleep as NSGL swap interval does not apply to
- // windows with a non-visible occlusion state
- if (window->ns.occluded)
- {
- int interval = 0;
- [window->context.nsgl.object getValues:&interval
- forParameter:NSOpenGLContextParameterSwapInterval];
-
- if (interval > 0)
- {
- const double framerate = 60.0;
- const uint64_t frequency = _glfwPlatformGetTimerFrequency();
- const uint64_t value = _glfwPlatformGetTimerValue();
-
- const double elapsed = value / (double) frequency;
- const double period = 1.0 / framerate;
- const double delay = period - fmod(elapsed, period);
-
- usleep(floorl(delay * 1e6));
- }
- }
-
- [window->context.nsgl.object flushBuffer];
-
- } // autoreleasepool
-}
-
-static void swapIntervalNSGL(int interval)
-{
- @autoreleasepool {
-
- _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
- if (window)
- {
- [window->context.nsgl.object setValues:&interval
- forParameter:NSOpenGLContextParameterSwapInterval];
- }
-
- } // autoreleasepool
-}
-
-static int extensionSupportedNSGL(const char* extension)
-{
- // There are no NSGL extensions
- return GLFW_FALSE;
-}
-
-static GLFWglproc getProcAddressNSGL(const char* procname)
-{
- CFStringRef symbolName = CFStringCreateWithCString(kCFAllocatorDefault,
- procname,
- kCFStringEncodingASCII);
-
- GLFWglproc symbol = CFBundleGetFunctionPointerForName(_glfw.nsgl.framework,
- symbolName);
-
- CFRelease(symbolName);
-
- return symbol;
-}
-
-static void destroyContextNSGL(_GLFWwindow* window)
-{
- @autoreleasepool {
-
- [window->context.nsgl.pixelFormat release];
- window->context.nsgl.pixelFormat = nil;
-
- [window->context.nsgl.object release];
- window->context.nsgl.object = nil;
-
- } // autoreleasepool
-}
-
-
-//////////////////////////////////////////////////////////////////////////
-////// GLFW internal API //////
-//////////////////////////////////////////////////////////////////////////
-
-// Initialize OpenGL support
-//
-GLFWbool _glfwInitNSGL(void)
-{
- if (_glfw.nsgl.framework)
- return GLFW_TRUE;
-
- _glfw.nsgl.framework =
- CFBundleGetBundleWithIdentifier(CFSTR("com.apple.opengl"));
- if (_glfw.nsgl.framework == NULL)
- {
- _glfwInputError(GLFW_API_UNAVAILABLE,
- "NSGL: Failed to locate OpenGL framework");
- return GLFW_FALSE;
- }
-
- return GLFW_TRUE;
-}
-
-// Terminate OpenGL support
-//
-void _glfwTerminateNSGL(void)
-{
-}
-
-// Create the OpenGL context
-//
-GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
- const _GLFWctxconfig* ctxconfig,
- const _GLFWfbconfig* fbconfig)
-{
- if (ctxconfig->client == GLFW_OPENGL_ES_API)
- {
- _glfwInputError(GLFW_API_UNAVAILABLE,
- "NSGL: OpenGL ES is not available on macOS");
- return GLFW_FALSE;
- }
-
- if (ctxconfig->major > 2)
- {
- if (ctxconfig->major == 3 && ctxconfig->minor < 2)
- {
- _glfwInputError(GLFW_VERSION_UNAVAILABLE,
- "NSGL: The targeted version of macOS does not support OpenGL 3.0 or 3.1 but may support 3.2 and above");
- return GLFW_FALSE;
- }
- }
-
- // Context robustness modes (GL_KHR_robustness) are not yet supported by
- // macOS but are not a hard constraint, so ignore and continue
-
- // Context release behaviors (GL_KHR_context_flush_control) are not yet
- // supported by macOS but are not a hard constraint, so ignore and continue
-
- // Debug contexts (GL_KHR_debug) are not yet supported by macOS but are not
- // a hard constraint, so ignore and continue
-
- // No-error contexts (GL_KHR_no_error) are not yet supported by macOS but
- // are not a hard constraint, so ignore and continue
-
-#define addAttrib(a) \
-{ \
- assert((size_t) index < sizeof(attribs) / sizeof(attribs[0])); \
- attribs[index++] = a; \
-}
-#define setAttrib(a, v) { addAttrib(a); addAttrib(v); }
-
- NSOpenGLPixelFormatAttribute attribs[40];
- int index = 0;
-
- addAttrib(NSOpenGLPFAAccelerated);
- addAttrib(NSOpenGLPFAClosestPolicy);
-
- if (ctxconfig->nsgl.offline)
- {
- addAttrib(NSOpenGLPFAAllowOfflineRenderers);
- // NOTE: This replaces the NSSupportsAutomaticGraphicsSwitching key in
- // Info.plist for unbundled applications
- // HACK: This assumes that NSOpenGLPixelFormat will remain
- // a straightforward wrapper of its CGL counterpart
- addAttrib(kCGLPFASupportsAutomaticGraphicsSwitching);
- }
-
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101000
- if (ctxconfig->major >= 4)
- {
- setAttrib(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion4_1Core);
- }
- else
-#endif /*MAC_OS_X_VERSION_MAX_ALLOWED*/
- if (ctxconfig->major >= 3)
- {
- setAttrib(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core);
- }
-
- if (ctxconfig->major <= 2)
- {
- if (fbconfig->auxBuffers != GLFW_DONT_CARE)
- setAttrib(NSOpenGLPFAAuxBuffers, fbconfig->auxBuffers);
-
- if (fbconfig->accumRedBits != GLFW_DONT_CARE &&
- fbconfig->accumGreenBits != GLFW_DONT_CARE &&
- fbconfig->accumBlueBits != GLFW_DONT_CARE &&
- fbconfig->accumAlphaBits != GLFW_DONT_CARE)
- {
- const int accumBits = fbconfig->accumRedBits +
- fbconfig->accumGreenBits +
- fbconfig->accumBlueBits +
- fbconfig->accumAlphaBits;
-
- setAttrib(NSOpenGLPFAAccumSize, accumBits);
- }
- }
-
- if (fbconfig->redBits != GLFW_DONT_CARE &&
- fbconfig->greenBits != GLFW_DONT_CARE &&
- fbconfig->blueBits != GLFW_DONT_CARE)
- {
- int colorBits = fbconfig->redBits +
- fbconfig->greenBits +
- fbconfig->blueBits;
-
- // macOS needs non-zero color size, so set reasonable values
- if (colorBits == 0)
- colorBits = 24;
- else if (colorBits < 15)
- colorBits = 15;
-
- setAttrib(NSOpenGLPFAColorSize, colorBits);
- }
-
- if (fbconfig->alphaBits != GLFW_DONT_CARE)
- setAttrib(NSOpenGLPFAAlphaSize, fbconfig->alphaBits);
-
- if (fbconfig->depthBits != GLFW_DONT_CARE)
- setAttrib(NSOpenGLPFADepthSize, fbconfig->depthBits);
-
- if (fbconfig->stencilBits != GLFW_DONT_CARE)
- setAttrib(NSOpenGLPFAStencilSize, fbconfig->stencilBits);
-
- if (fbconfig->stereo)
- {
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101200
- _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
- "NSGL: Stereo rendering is deprecated");
- return GLFW_FALSE;
-#else
- addAttrib(NSOpenGLPFAStereo);
-#endif
- }
-
- if (fbconfig->doublebuffer)
- addAttrib(NSOpenGLPFADoubleBuffer);
-
- if (fbconfig->samples != GLFW_DONT_CARE)
- {
- if (fbconfig->samples == 0)
- {
- setAttrib(NSOpenGLPFASampleBuffers, 0);
- }
- else
- {
- setAttrib(NSOpenGLPFASampleBuffers, 1);
- setAttrib(NSOpenGLPFASamples, fbconfig->samples);
- }
- }
-
- // NOTE: All NSOpenGLPixelFormats on the relevant cards support sRGB
- // framebuffer, so there's no need (and no way) to request it
-
- addAttrib(0);
-
-#undef addAttrib
-#undef setAttrib
-
- window->context.nsgl.pixelFormat =
- [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
- if (window->context.nsgl.pixelFormat == nil)
- {
- _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
- "NSGL: Failed to find a suitable pixel format");
- return GLFW_FALSE;
- }
-
- NSOpenGLContext* share = nil;
-
- if (ctxconfig->share)
- share = ctxconfig->share->context.nsgl.object;
-
- window->context.nsgl.object =
- [[NSOpenGLContext alloc] initWithFormat:window->context.nsgl.pixelFormat
- shareContext:share];
- if (window->context.nsgl.object == nil)
- {
- _glfwInputError(GLFW_VERSION_UNAVAILABLE,
- "NSGL: Failed to create OpenGL context");
- return GLFW_FALSE;
- }
-
- if (fbconfig->transparent)
- {
- GLint opaque = 0;
- [window->context.nsgl.object setValues:&opaque
- forParameter:NSOpenGLContextParameterSurfaceOpacity];
- }
-
- [window->ns.view setWantsBestResolutionOpenGLSurface:window->ns.retina];
-
- [window->context.nsgl.object setView:window->ns.view];
-
- window->context.makeCurrent = makeContextCurrentNSGL;
- window->context.swapBuffers = swapBuffersNSGL;
- window->context.swapInterval = swapIntervalNSGL;
- window->context.extensionSupported = extensionSupportedNSGL;
- window->context.getProcAddress = getProcAddressNSGL;
- window->context.destroy = destroyContextNSGL;
-
- return GLFW_TRUE;
-}
-
-
-//////////////////////////////////////////////////////////////////////////
-////// GLFW native API //////
-//////////////////////////////////////////////////////////////////////////
-
-GLFWAPI id glfwGetNSGLContext(GLFWwindow* handle)
-{
- _GLFWwindow* window = (_GLFWwindow*) handle;
- _GLFW_REQUIRE_INIT_OR_RETURN(nil);
-
- if (window->context.client == GLFW_NO_API)
- {
- _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
- return nil;
- }
-
- return window->context.nsgl.object;
-}
-
projects / pistorm / blobdiff