Add tiling into the DirectX printing code.

The tiling in x and y is needed to ensure that we can print at high
resolutions with devices that have smaller bit map sizes (e.g. the surface).
Banding only in the y dimension like we often do is not sufficient.

Also fix an open with file association bug that must of occurred with the
transition to 8.1

And update WinRT solution for recent changes in mupdf code.   This includes
the addition of a few new files and the document type registration.

1 files changed, 19 insertions, 15 deletions

diff --git a/platform/winrt/mupdfwinrt/muctx.cpp b/platform/winrt/mupdfwinrt/muctx.cpp
index 2c40a85d..4e8a4ad2 100644
--- a/platform/winrt/mupdfwinrt/muctx.cpp
+++ b/platform/winrt/mupdfwinrt/muctx.cpp
@@ -127,6 +127,7 @@ status_t muctx::InitializeContext()
 	}
 	else
 	{
+		fz_register_document_handlers(this->mu_ctx);
 		return S_ISOK;
 	}
 }
@@ -159,7 +160,7 @@ muctx::~muctx(void)
 status_t muctx::InitializeStream(IRandomAccessStream^ readStream, char *ext)
 {
 	win_stream.stream = readStream;
-	fz_stream *mu_stream = fz_new_stream(mu_ctx, 0, win_read_file, win_close_file);
+	fz_stream *mu_stream = fz_new_stream(mu_ctx, 0, win_read_file, win_close_file, NULL);
 	mu_stream->seek = win_seek_file;
 	mu_stream->state =  reinterpret_cast <void*> (&win_stream);
 
@@ -442,9 +443,10 @@ fz_display_list * muctx::CreateDisplayList(int page_num, int *width, int *height
 }
 
 /* Render display list bmp_data buffer.  No lock needed for this operation */
-status_t muctx::RenderPageMT(void *dlist, int page_width, int page_height,
+status_t muctx::RenderPageMT(void *dlist, int page_width, int page_height, 
 							 unsigned char *bmp_data, int bmp_width, int bmp_height,
-							 bool flipy)
+							 float scale, bool flipy, bool tile, Point top_left, 
+							 Point bottom_right)
 {
 	fz_device *dev = NULL;
 	fz_pixmap *pix = NULL;
@@ -460,16 +462,22 @@ status_t muctx::RenderPageMT(void *dlist, int page_width, int page_height,
 
 	fz_try(ctx_clone)
 	{
-		/* Figure out scale factors so that we get the desired size */
-		pctm = fz_scale(pctm, (float) bmp_width / page_width, (float) bmp_height / page_height);
-		/* Flip on Y */
+		pctm = fz_scale(pctm, scale, scale);
+		/* Flip on Y. */
 		if (flipy) 
 		{
-			ctm.f = bmp_height;
+			ctm.f = (float) page_height * ctm.d;
 			ctm.d = -ctm.d;
+			ctm.f += top_left.Y;
 		}
-		pix = fz_new_pixmap_with_data(ctx_clone, fz_device_bgr(ctx_clone), bmp_width, 
-										bmp_height, bmp_data);
+		else
+		{
+			ctm.f -= top_left.Y;
+		}
+		ctm.e -= top_left.X;
+
+		pix = fz_new_pixmap_with_data(ctx_clone, fz_device_bgr(ctx_clone),
+										bmp_width, bmp_height, bmp_data);
 		fz_clear_pixmap_with_value(ctx_clone, pix, 255);
 		dev = fz_new_draw_device(ctx_clone, pix);
 		fz_run_display_list(display_list, dev, pctm, NULL, NULL);
@@ -485,14 +493,13 @@ status_t muctx::RenderPageMT(void *dlist, int page_width, int page_height,
 		fz_free_context(ctx_clone);
 		return E_FAILURE;
 	}
-
 	fz_free_context(ctx_clone);
 	return S_ISOK;
 }
 
 /* Render page_num to size width by height into bmp_data buffer.  Lock needed. */
 status_t muctx::RenderPage(int page_num, unsigned char *bmp_data, int bmp_width, 
-						   int bmp_height, bool flipy)
+						   int bmp_height, float scale, bool flipy)
 {
 	fz_device *dev = NULL;
 	fz_pixmap *pix = NULL;
@@ -508,10 +515,7 @@ status_t muctx::RenderPage(int page_num, unsigned char *bmp_data, int bmp_width,
 	{
 		page = fz_load_page(mu_doc, page_num);
 		page_size = MeasurePage(page);
-
-		/* Figure out scale factors so that we get the desired size */
-		pctm = fz_scale(pctm, (float) bmp_width / page_size.X, 
-						(float) bmp_height / page_size.Y);
+		pctm = fz_scale(pctm, scale, scale);
 		/* Flip on Y */
 		if (flipy)
 		{