From ee1b8631b3f0aed4aa43f460f268e73f19620634 Mon Sep 17 00:00:00 2001
From: Ludovic Pouzenc <ludovic@pouzenc.fr>
Date: Sat, 16 Feb 2013 23:29:34 +0000
Subject: Ajout de quelques bouts. Il manque pas grand chose pour avoir OpenCL
 là dedans, je pense
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git-svn-id: file:///var/svn/2013-gpudataviz/trunk@10 371a6b4a-a258-45f8-9dcc-bdd82ce0ac9d
---
 tests/poc_c/main.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 52 insertions(+), 3 deletions(-)

diff --git a/tests/poc_c/main.c b/tests/poc_c/main.c
index 78eaf15..2b86f0f 100644
--- a/tests/poc_c/main.c
+++ b/tests/poc_c/main.c
@@ -18,6 +18,8 @@ gboolean gl_area_on_draw (GtkObject* area, GdkEventExpose* event, gpointer data)
 		return FALSE;
 	}
 
+	printf("on_draw_glx_current_context==%p\n", (void *)glXGetCurrentContext());
+
 	GtkAllocation allocation;
 	gtk_widget_get_allocation (GTK_WIDGET (area), &allocation);
 	GLdouble viewport_width = (GLdouble) allocation.width;
@@ -76,7 +78,9 @@ int main(int argc, char *argv[]) {
 
 	GdkGLConfig* gl_config;
 	GdkGLContext* gl_context;
+	GdkGLDrawable* drawable;
 	GLXContext glx_context; // X11 specific
+	Display *glx_display; // X11 specific
 	gboolean res;
 
 	gtk_init(&argc, &argv);
@@ -97,8 +101,8 @@ int main(int argc, char *argv[]) {
 	gl_config = gdk_gl_config_new_by_mode(GDK_GL_MODE_RGBA | GDK_GL_MODE_DOUBLE | GDK_GL_MODE_DEPTH);
 	res = gtk_widget_set_gl_capability(GTK_WIDGET(gl_area), gl_config,
 			/* GdkGLContext *share_list */ NULL,
-		       	/* gboolean direct */ TRUE,
-		       	/* int render_type */ GDK_GL_RGBA_TYPE);
+			/* gboolean direct */ TRUE,
+			/* int render_type */ GDK_GL_RGBA_TYPE);
 	if ( !res ) {
 		fputs ("Failed to set_gl_capability(gl_area)\n", stderr);
 		return EXIT_FAILURE;
@@ -114,15 +118,60 @@ int main(int argc, char *argv[]) {
 		fputs ("Failed to get_gl_context(gl_area)\n", stderr);
 		return EXIT_FAILURE;
 	}
+	drawable = gtk_widget_get_gl_drawable(GTK_WIDGET(gl_area));
+	res = gdk_gl_drawable_gl_begin(drawable, gl_context);
 
 	/* BEGIN : X11 specific */
-      	glx_context=gdk_x11_gl_context_get_glxcontext(gl_context);
+
+	/*
+	glx_context=gdk_x11_gl_context_get_glxcontext(gl_context);
 	if ( !glx_context) {
 		fputs ("Failed to gdk_x11_gl_context_get_glxcontext(gl_context)\n", stderr);
 		return EXIT_FAILURE;
 	}
 	printf("glx_context==%p\n", (void *)glx_context);
+	*/
+	glx_context=glXGetCurrentContext();
+	if ( !glx_context ) {
+		fputs ("Failed to glXGetCurrentContext()", stderr);
+		return EXIT_FAILURE;
+	}
+	glx_display=glXGetCurrentDisplay();
+	if ( !glx_display ) {
+		fputs ("Failed to glXGetCurrentDisplay()", stderr);
+		return EXIT_FAILURE;
+	}
+
+	printf("glx_current_context==%p\n", (void *)glx_context);
+	printf("glx_current_display==%p\n", (void *)glx_display);
 	/* END : X11 specific */
+	gdk_gl_drawable_gl_end (drawable);
+
+	//TODO OpenCL init (platform pointer). In a while loop for trying all ?
+
+	/* BEGIN : X11 specific */
+	cl_context_properties cpsGL[] = { CL_CONTEXT_PLATFORM, (cl_context_properties)platform,
+		CL_GLX_DISPLAY_KHR, (intptr_t) glx_display,
+		CL_GL_CONTEXT_KHR, (intptr_t) glx_context, 0
+	};
+
+	/*
+	if (!clGetGLContextInfoKHR)
+	{
+		clGetGLContextInfoKHR = (clGetGLContextInfoKHR_fn) clGetExtensionFunctionAddressForPlatform(platform, "clGetGLContextInfoKHR");
+		if (!clGetGLContextInfoKHR)
+		{
+			std::cout << "Failed to query proc address for clGetGLContextInfoKHR";
+		}
+	}
+
+
+*/
+
+
+
+
+
 
 	gtk_main();
 	return EXIT_SUCCESS;
-- 
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