[cairo] [patch] gl: add test cases for nsgl-window

[Henry (Yu) Song - SISA]

>From da087e70822996ed0d8e2556a3bd9fda5a0b5d9d Mon Sep 17 00:00:00 2001
From: Henry Song <hsong at sisa.samsung.com>
Date: Fri, 4 Jan 2013 18:05:53 -0800
Subject: [PATCH] gl: add test cases for nsgl-window

---
 boilerplate/cairo-boilerplate-nsgl.m | 134 ++++++++++++++++++++++++++++++++++-
 1 file changed, 132 insertions(+), 2 deletions(-)

diff --git a/boilerplate/cairo-boilerplate-nsgl.m b/boilerplate/cairo-boilerplate-nsgl.m
index f6ead00..2247886 100644
--- a/boilerplate/cairo-boilerplate-nsgl.m
+++ b/boilerplate/cairo-boilerplate-nsgl.m
@@ -40,17 +40,50 @@

 #import <AppKit/NSOpenGL.h>
 #import <Foundation/NSAutoreleasePool.h>
+#import <Cocoa/Cocoa.h>

 static const cairo_user_data_key_t gl_closure_key;

 typedef struct _nsgl_target_closure {
     NSOpenGLContext *ctx;
     NSAutoreleasePool *pool;
+    NSOpenGLView *view;
+    NSWindow *window;

     cairo_device_t *device;
     cairo_surface_t *surface;
 } nsgl_target_closure_t;

+ at interface NSGLTestView : NSOpenGLView {
+}
+
+ at end
+
+ at implementation NSGLTestView
+
++ (NSOpenGLPixelFormat*)defaultPixelFormat
+{
+    NSOpenGLPixelFormatAttribute attrs[] =
+    {
+ NSOpenGLPFADoubleBuffer,
+ NSOpenGLPFADepthSize, 24,
+ NSOpenGLPFAStencilSize, 8,
+ NSOpenGLPFAAlphaSize, 8,
+ NSOpenGLPFASampleBuffers, 1,
+ NSOpenGLPFASamples, 4,
+ NSOpenGLPFAMultisample,
+ 0
+    };
+
+    NSOpenGLPixelFormat *classPixelFormat = [[[NSOpenGLPixelFormat alloc] initWithAttributes:attrs] autorelease];
+    if (!classPixelFormat)
+ exit (-1);
+
+    return classPixelFormat;
+}
+
+ at end
+
 static void
 _cairo_boilerplate_nsgl_cleanup (void *closure)
 {
@@ -60,7 +93,15 @@ _cairo_boilerplate_nsgl_cleanup (void *closure)
     cairo_device_destroy (gltc->device);

     [NSOpenGLContext clearCurrentContext];
-    [gltc->ctx release];
+
+    if (gltc->window) {
+ [gltc->window orderOut: nil];
+ [gltc->window release];
+ [gltc->view release];
+    }
+    else
+ [gltc->ctx release];
+
     [gltc->pool release];

     free (gltc);
@@ -88,6 +129,8 @@ _cairo_boilerplate_nsgl_create_surface (const char *name,
     };

     gltc = xcalloc (1, sizeof (nsgl_target_closure_t));
+    gltc->window = nil;
+    gltc->view = nil;
     *closure = gltc;
     gltc->pool = [[NSAutoreleasePool alloc] init];

@@ -119,6 +162,78 @@ _cairo_boilerplate_nsgl_create_surface (const char *name,
     return surface;
 }

+static cairo_surface_t *
+_cairo_boilerplate_nsgl_create_view (const char *name,
+     cairo_content_t content,
+     double width,
+     double height,
+     double max_width,
+     double max_height,
+     cairo_boilerplate_mode_t   mode,
+     void **closure)
+{
+    nsgl_target_closure_t *gltc;
+    cairo_surface_t *surface;
+    int style = NSTexturedBackgroundWindowMask;
+
+    NSWindow *win;
+    NSOpenGLView *view;
+
+    NSScreen *screen = [NSScreen mainScreen];
+    NSRect frame = [screen frame];
+    int screen_height = frame.size.height;
+
+    gltc = xcalloc (1, sizeof (nsgl_target_closure_t));
+    gltc->window = nil;
+    gltc->view = nil;
+    *closure = gltc;
+
+    gltc->pool = [[NSAutoreleasePool alloc] init];
+    [NSApplication sharedApplication];
+
+    if (width < 1)
+ width = 1;
+    if (height < 1)
+ height = 1;
+
+    win = [[NSWindow alloc] initWithContentRect: NSMakeRect (0, screen_height - ceil (height), ceil (width), ceil (height))
+    styleMask: style
+    backing: NSBackingStoreBuffered
+    defer: NO];
+
+    view = [[NSGLTestView alloc] initWithFrame: NSMakeRect (0, 0, ceil (width), ceil (height))];
+    [win setContentView: view];
+
+    gltc->view = view;
+    gltc->window = win;
+
+    gltc->ctx = [gltc->view openGLContext];
+
+    if (!gltc->ctx)
+ return NULL;
+
+    [gltc->ctx makeCurrentContext];
+    gltc->device = cairo_nsgl_device_create (gltc->ctx);
+
+    gltc->surface = surface = cairo_gl_surface_create_for_view (gltc->device,
+ gltc->view,
+ ceil (width),
+ ceil (height));
+    if (cairo_surface_status (surface))
+ _cairo_boilerplate_nsgl_cleanup (gltc);
+
+    [win orderFront: win];
+
+    return surface;
+}
+
+static cairo_status_t
+_cairo_boilerplate_nsgl_finish_window (cairo_surface_t *surface)
+{
+    cairo_gl_surface_swapbuffers (surface);
+    return CAIRO_STATUS_SUCCESS;
+}
+
 static void
 _cairo_boilerplate_nsgl_synchronize (void *closure)
 {
@@ -136,7 +251,7 @@ static const cairo_boilerplate_target_t targets[] = {
     {
  "nsgl", "gl", NULL, NULL,
  CAIRO_SURFACE_TYPE_GL, CAIRO_CONTENT_COLOR_ALPHA, 1,
- "cairo_nsgl_device_create",
+ "cairo_nsgl_surface_create",
  _cairo_boilerplate_nsgl_create_surface,
  cairo_surface_create_similar,
  NULL, NULL,
@@ -146,6 +261,21 @@ static const cairo_boilerplate_target_t targets[] = {
  _cairo_boilerplate_nsgl_synchronize,
         NULL,
  TRUE, FALSE, FALSE
+    },
+    {
+ "nsgl-window", "gl", NULL, NULL,
+ CAIRO_SURFACE_TYPE_GL, CAIRO_CONTENT_COLOR_ALPHA, 1,
+ "cairo_nsgl_surface_create_for_window",
+ _cairo_boilerplate_nsgl_create_view,
+ cairo_surface_create_similar,
+ NULL,
+ _cairo_boilerplate_nsgl_finish_window,
+ _cairo_boilerplate_get_image_surface,
+ cairo_surface_write_to_png,
+ _cairo_boilerplate_nsgl_cleanup,
+ _cairo_boilerplate_nsgl_synchronize,
+        NULL,
+ FALSE, FALSE, FALSE
     }
 };
 CAIRO_BOILERPLATE (nsgl, targets)
--
1.8.0.1

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