Move implementation source files to a conventional src directory

I think this attempt to be optionally header-only was misguided, particularly
installing source code to the system include path.  Typically anyone vendoring
code just includes the repository and builds from there anyway.

This commit moves all the implementation code to a typical src directory (Don't
Be Weird).

I still think there is some value in simple "inline" deployment, but that would
be better achieved another way, like producing a single-file amalgamation that
builds anywhere, ala sqlite.

1 files changed, 178 insertions, 0 deletions

diff --git a/src/win_cairo.c b/src/win_cairo.c
new file mode 100644
index 0000000..18c4a95
--- /dev/null
+++ b/src/win_cairo.c
@@ -0,0 +1,178 @@
+/*
+  Copyright 2012-2020 David Robillard <d@drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file win_cairo.c
+   @brief Cairo graphics backend for Windows.
+*/
+
+#include "stub.h"
+#include "types.h"
+#include "win.h"
+
+#include "pugl/pugl_cairo.h"
+
+#include <cairo-win32.h>
+#include <cairo.h>
+
+#include <stdlib.h>
+
+typedef struct  {
+	cairo_surface_t* surface;
+	cairo_t*         cr;
+	HDC              drawDc;
+	HBITMAP          drawBitmap;
+} PuglWinCairoSurface;
+
+static PuglStatus
+puglWinCairoCreateDrawContext(PuglView* view)
+{
+	PuglInternals* const       impl    = view->impl;
+	PuglWinCairoSurface* const surface = (PuglWinCairoSurface*)impl->surface;
+
+	surface->drawDc     = CreateCompatibleDC(impl->hdc);
+	surface->drawBitmap = CreateCompatibleBitmap(
+		impl->hdc, (int)view->frame.width, (int)view->frame.height);
+
+	DeleteObject(SelectObject(surface->drawDc, surface->drawBitmap));
+
+	return PUGL_SUCCESS;
+}
+
+static PuglStatus
+puglWinCairoDestroyDrawContext(PuglView* view)
+{
+	PuglInternals* const       impl    = view->impl;
+	PuglWinCairoSurface* const surface = (PuglWinCairoSurface*)impl->surface;
+
+	DeleteDC(surface->drawDc);
+	DeleteObject(surface->drawBitmap);
+
+	surface->drawDc     = NULL;
+	surface->drawBitmap = NULL;
+
+	return PUGL_SUCCESS;
+}
+
+static PuglStatus
+puglWinCairoConfigure(PuglView* view)
+{
+	const PuglStatus st = puglWinStubConfigure(view);
+
+	if (!st) {
+		view->impl->surface = (PuglWinCairoSurface*)calloc(
+			1, sizeof(PuglWinCairoSurface));
+	}
+
+	return st;
+}
+
+static void
+puglWinCairoClose(PuglView* view)
+{
+	PuglInternals* const       impl    = view->impl;
+	PuglWinCairoSurface* const surface = (PuglWinCairoSurface*)impl->surface;
+
+	cairo_surface_destroy(surface->surface);
+
+	surface->surface = NULL;
+}
+
+static PuglStatus
+puglWinCairoOpen(PuglView* view)
+{
+	PuglInternals* const       impl    = view->impl;
+	PuglWinCairoSurface* const surface = (PuglWinCairoSurface*)impl->surface;
+
+	if (!(surface->surface = cairo_win32_surface_create(surface->drawDc)) ||
+	    cairo_surface_status(surface->surface) ||
+	    !(surface->cr = cairo_create(surface->surface)) ||
+	    cairo_status(surface->cr)) {
+		return PUGL_CREATE_CONTEXT_FAILED;
+	}
+
+	return PUGL_SUCCESS;
+}
+
+static PuglStatus
+puglWinCairoDestroy(PuglView* view)
+{
+	PuglInternals* const       impl    = view->impl;
+	PuglWinCairoSurface* const surface = (PuglWinCairoSurface*)impl->surface;
+
+	puglWinCairoClose(view);
+	puglWinCairoDestroyDrawContext(view);
+	free(surface);
+	impl->surface = NULL;
+
+	return PUGL_SUCCESS;
+}
+
+static PuglStatus
+puglWinCairoEnter(PuglView* view, const PuglEventExpose* expose)
+{
+	PuglStatus st = PUGL_SUCCESS;
+
+	if (expose &&
+	    !(st = puglWinCairoCreateDrawContext(view)) &&
+	    !(st = puglWinCairoOpen(view))) {
+		PAINTSTRUCT ps;
+		BeginPaint(view->impl->hwnd, &ps);
+	}
+
+	return st;
+}
+
+static PuglStatus
+puglWinCairoLeave(PuglView* view, const PuglEventExpose* expose)
+{
+	PuglInternals* const       impl    = view->impl;
+	PuglWinCairoSurface* const surface = (PuglWinCairoSurface*)impl->surface;
+
+	if (expose) {
+		cairo_surface_flush(surface->surface);
+		BitBlt(impl->hdc,
+		       0, 0, (int)view->frame.width, (int)view->frame.height,
+		       surface->drawDc, 0, 0, SRCCOPY);
+
+		puglWinCairoClose(view);
+		puglWinCairoDestroyDrawContext(view);
+
+		PAINTSTRUCT ps;
+		EndPaint(view->impl->hwnd, &ps);
+	}
+
+	return PUGL_SUCCESS;
+}
+
+static void*
+puglWinCairoGetContext(PuglView* view)
+{
+	return ((PuglWinCairoSurface*)view->impl->surface)->cr;
+}
+
+const PuglBackend*
+puglCairoBackend()
+{
+	static const PuglBackend backend = {puglWinCairoConfigure,
+	                                    puglStubCreate,
+	                                    puglWinCairoDestroy,
+	                                    puglWinCairoEnter,
+	                                    puglWinCairoLeave,
+	                                    puglWinCairoGetContext};
+
+	return &backend;
+}