OpenGL

git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@61 b9cfdab3-6d41-4d17-bbe4-086880011989

src/button.c

@@ -36,7 +36,6 @@ static void click(MwWidget handle) {
 }
 
 MwClassRec MwButtonClassRec = {
-    NULL,   /* opaque */
     create, /* create */
     NULL,   /* destroy */
     draw,   /* draw */

src/opengl.c

@@ -0,0 +1,100 @@
+/* $Id$ */
+#include <Mw/Milsko.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <X11/X.h>
+#include <GL/glx.h>
+#endif
+#include <GL/gl.h>
+
+#ifdef _WIN32
+typedef struct opengl {
+	HDC   dc;
+	HGLRC gl;
+} opengl_t;
+#else
+typedef struct opengl {
+	XVisualInfo* visual;
+	GLXContext   gl;
+} opengl_t;
+#endif
+
+static void create(MwWidget handle) {
+	opengl_t* o = malloc(sizeof(*o));
+#ifdef _WIN32
+	PIXELFORMATDESCRIPTOR pfd;
+	int		      pf;
+
+	memset(&pfd, 0, sizeof(pfd));
+	pfd.nSize      = sizeof(pfd);
+	pfd.nVersion   = 1;
+	pfd.dwFlags    = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
+	pfd.cDepthBits = 32;
+	pfd.cColorBits = 32;
+
+	o->dc = GetDC(handle->lowlevel->hWnd);
+
+	pf = ChoosePixelFormat(o->dc, &pfd);
+	SetPixelFormat(o->dc, pf, &pfd);
+
+	o->gl = wglCreateContext(o->dc);
+#else
+	int attribs[5];
+
+	attribs[0] = GLX_RGBA;
+	attribs[1] = GLX_DOUBLEBUFFER;
+	attribs[2] = GLX_DEPTH_SIZE;
+	attribs[3] = 24;
+	attribs[4] = None;
+
+	/* XXX: fix this */
+	o->visual = glXChooseVisual(handle->lowlevel->display, DefaultScreen(handle->lowlevel->display), attribs);
+	o->gl	  = glXCreateContext(handle->lowlevel->display, o->visual, NULL, GL_TRUE);
+#endif
+	handle->internal = o;
+
+	MwSetDefault(handle);
+}
+
+static void destroy(MwWidget handle) {
+	opengl_t* o = (opengl_t*)handle->internal;
+#ifdef _WIN32
+	wglMakeCurrent(NULL, NULL);
+	DeleteDC(o->dc);
+	wglDeleteContext(o->gl);
+#else
+	glXMakeCurrent(handle->lowlevel->display, None, NULL);
+	glXDestroyContext(handle->lowlevel->display, o->gl);
+#endif
+	free(o);
+}
+
+MwClassRec MwOpenGLClassRec = {
+    create,  /* create */
+    destroy, /* destroy */
+    NULL,    /* draw */
+    NULL     /* click */
+};
+MwClass MwOpenGLClass = &MwOpenGLClassRec;
+
+void MwOpenGLMakeCurrent(MwWidget handle) {
+	opengl_t* o = (opengl_t*)handle->internal;
+#ifdef _WIN32
+	wglMakeCurrent(o->dc, o->gl);
+#else
+	glXMakeCurrent(handle->lowlevel->display, handle->lowlevel->window, o->gl);
+#endif
+}
+
+void MwOpenGLSwapBuffer(MwWidget handle) {
+	opengl_t* o = (opengl_t*)handle->internal;
+#ifdef _WIN32
+	SwapBuffers(o->dc);
+#else
+	(void)o;
+
+	glXSwapBuffers(handle->lowlevel->display, handle->lowlevel->window);
+#endif
+}

src/window.c

@@ -20,7 +20,6 @@ static void draw(MwWidget handle) {
 }
 
 MwClassRec MwWindowClassRec = {
-    NULL,   /* opaque */
     create, /* create */
     NULL,   /* destroy */
     draw,   /* draw */