Giant commit!

A full detailed description of this will be done later... is several days
of work. Here's a summary:

Render:
- Full cleanup of render code, removing *all* globals and bad level calls
  all over blender. Render module is now not called abusive anymore
- API-fied calls to rendering
- Full recode of internal render pipeline. Is now rendering tiles by
  default, prepared for much smarter 'bucket' render later.
- Each thread now can render a full part
- Renders were tested with 4 threads, goes fine, apart from some lookup
  tables in softshadow and AO still
- Rendering is prepared to do multiple layers and passes
- No single 32 bits trick in render code anymore, all 100% floats now.

Writing images/movies
- moved writing images to blender kernel (bye bye 'schrijfplaatje'!)
- made a new Movie handle system, also in kernel. This will enable much
  easier use of movies in Blender

PreviewRender:
- Using new render API, previewrender (in buttons) now uses regular render
  code to generate images.
- new datafile 'preview.blend.c' has the preview scenes in it
- previews get rendered in exact displayed size (1 pixel = 1 pixel)

3D Preview render
- new; press Pkey in 3d window, for a panel that continuously renders
  (pkey is for games, i know... but we dont do that in orange now!)
- this render works nearly identical to buttons-preview render, so it stops
  rendering on any event (mouse, keyboard, etc)
- on moving/scaling the panel, the render code doesn't recreate all geometry
- same for shifting/panning view
- all other operations (now) regenerate the full render database still.
- this is WIP... but big fun, especially for simple scenes!

Compositor
- Using same node system as now in use for shaders, you can composit images
- works pretty straightforward... needs much more options/tools and integration
  with rendering still
- is not threaded yet, nor is so smart to only recalculate changes... will be
  done soon!
- the "Render Result" node will get all layers/passes as output sockets
- The "Output" node renders to a builtin image, which you can view in the Image
  window. (yes, output nodes to render-result, and to files, is on the list!)

The Bad News
- "Unified Render" is removed. It might come back in some stage, but this
  system should be built from scratch. I can't really understand this code...
  I expect it is not much needed, especially with advanced layer/passes
  control
- Panorama render, Field render, Motion blur, is not coded yet... (I had to
  recode every single feature in render, so...!)
- Lens Flare is also not back... needs total revision, might become composit
  effect though (using zbuffer for visibility)
- Part render is gone! (well, thats obvious, its default now).
- The render window is only restored with limited functionality... I am going
  to check first the option to render to a Image window, so Blender can become
  a true single-window application. :)
  For example, the 'Spare render buffer' (jkey) doesnt work.
- Render with border, now default creates a smaller image
- No zbuffers are written yet... on the todo!
- Scons files and MSVC will need work to get compiling again

OK... thats what I can quickly recall. Now go compiling!

1 files changed, 124 insertions, 56 deletions

diff --git a/source/blender/src/writeimage.c b/source/blender/src/writeimage.c
index 4f1224eabff..1e89c8e8bba 100644
--- a/source/blender/src/writeimage.c
+++ b/source/blender/src/writeimage.c
@@ -30,77 +30,35 @@
  * ***** END GPL/BL DUAL LICENSE BLOCK *****
  */
 
+#include <string.h>
+
+#include "MEM_guardedalloc.h"
+
 #include "IMB_imbuf.h"
 #include "IMB_imbuf_types.h"  // ImBuf{}
 
+#include "BLI_blenlib.h"
+
 #include "DNA_scene_types.h"
+#include "DNA_space_types.h"
 #include "DNA_texture_types.h" // EnvMap{}
 #include "DNA_image_types.h" // Image{}
 
 #include "BKE_global.h"		// struct G
+#include "BKE_image.h"
 #include "BKE_utildefines.h" // ELEM
 
+#include "BIF_screen.h"		// waitcursor
+#include "BIF_toolbox.h"
 #include "BIF_writeimage.h"
 
-#include "render.h"			// RE_make_existing_file, R. stuff
-
-int BIF_write_ibuf(ImBuf *ibuf, char *name)
-{
-	int ok;
-
-	/* to be used for e.g. envmap, not rendered images */
-	
-	if(G.scene->r.imtype== R_IRIS) ibuf->ftype= IMAGIC;
-	else if ((G.scene->r.imtype==R_RADHDR)) {
-		ibuf->ftype= RADHDR;
-	}
-	else if ((G.scene->r.imtype==R_PNG)) {
-		ibuf->ftype= PNG;
-	}
-	else if ((G.scene->r.imtype==R_BMP)) {
-		ibuf->ftype= BMP;
-	}
-	else if ((G.have_libtiff) && (G.scene->r.imtype==R_TIFF)) {
-		ibuf->ftype= TIF;
-	}
-#ifdef WITH_OPENEXR
-	else if (G.scene->r.imtype==R_OPENEXR) {
-		ibuf->ftype= OPENEXR;
-		if(G.scene->r.subimtype & R_OPENEXR_HALF)
-			ibuf->ftype |= OPENEXR_HALF;
-		ibuf->ftype |= (G.scene->r.quality & OPENEXR_COMPRESS);
-	}
-#endif
-	else if ((G.scene->r.imtype==R_TARGA) || (G.scene->r.imtype==R_PNG)) {
-		// fall back to Targa if PNG writing is not supported
-		ibuf->ftype= TGA;
-	}
-	else if(G.scene->r.imtype==R_RAWTGA) {
-		ibuf->ftype= RAWTGA;
-	}
-	else if(G.scene->r.imtype==R_HAMX) {
-		ibuf->ftype= AN_hamx;
-	}
-	else if ELEM(G.scene->r.imtype, R_JPEG90, R_MOVIE) {
-		if(G.scene->r.quality < 10) G.scene->r.quality= 90;
-
-		ibuf->ftype= JPG|G.scene->r.quality;
-	}
-	else ibuf->ftype= TGA;
-	
-	RE_make_existing_file(name);
-	
-	ok = IMB_saveiff(ibuf, name, IB_rect);
-	if (ok == 0) {
-		perror(name);
-	}
-
-	return(ok);
-}
+#include "BSE_filesel.h"
 
+#include "RE_pipeline.h"
 
 /* ------------------------------------------------------------------------- */
 
+
 void BIF_save_envmap(EnvMap *env, char *str)
 {
 	ImBuf *ibuf;
@@ -120,6 +78,116 @@ void BIF_save_envmap(EnvMap *env, char *str)
 	IMB_rectcpy(ibuf, env->cube[4]->ibuf, dx, dx, 0, 0, dx, dx);
 	IMB_rectcpy(ibuf, env->cube[5]->ibuf, 2*dx, dx, 0, 0, dx, dx);
 	
-	BIF_write_ibuf(ibuf, str);
+	BKE_write_ibuf(ibuf, str, G.scene->r.imtype, G.scene->r.subimtype, G.scene->r.quality);
 	IMB_freeImBuf(ibuf);
 }
+
+
+/* callback for fileselect to save rendered image, renderresult was checked to exist */
+static void save_rendered_image_cb(char *name)
+{
+	char str[FILE_MAXDIR+FILE_MAXFILE];
+	
+	if(BLI_testextensie(str,".blend")) {
+		error("Wrong filename");
+		return;
+	}
+	
+	/* BKE_add_image_extension() checks for if extension was already set */
+	if(G.scene->r.scemode & R_EXTENSION) 
+		if(strlen(name)<FILE_MAXDIR+FILE_MAXFILE-5)
+			BKE_add_image_extension(name, G.scene->r.imtype);
+
+	strcpy(str, name);
+	BLI_convertstringcode(str, G.sce, G.scene->r.cfra);
+	
+	if(saveover(str)) {
+		RenderResult *rr= RE_GetResult(RE_GetRender("Render"));
+		RenderLayer *rl= rr->layers.first;
+		ImBuf *ibuf;
+		
+		waitcursor(1); /* from screen.c */
+
+		ibuf= IMB_allocImBuf(rr->rectx, rr->recty, G.scene->r.planes, 0, 0);
+		ibuf->rect= rr->rect32;
+		ibuf->rect_float= rl->rectf;
+		ibuf->zbuf_float= rl->rectz;
+		
+		BKE_write_ibuf(ibuf, str, G.scene->r.imtype, G.scene->r.subimtype, G.scene->r.quality);
+		IMB_freeImBuf(ibuf);	/* imbuf knows rects are not part of ibuf */
+		
+		strcpy(G.ima, name);
+		
+		waitcursor(0);
+	}
+}
+
+void save_image_filesel_str(char *str)
+{
+	switch(G.scene->r.imtype) {
+		case R_RADHDR:
+			strcpy(str, "Save Radiance HDR");
+			break;
+		case R_PNG:
+			strcpy(str, "Save PNG");
+			break;
+		case R_BMP:
+			strcpy(str, "Save BMP");
+			break;
+		case R_TIFF:
+			if (G.have_libtiff)
+				strcpy(str, "Save TIFF");
+			break;
+#ifdef WITH_OPENEXR
+		case R_OPENEXR:
+			strcpy(str, "Save OpenEXR");
+			break;
+#endif
+		case R_RAWTGA:
+			strcpy(str, "Save Raw Targa");
+			break;
+		case R_IRIS:
+			strcpy(str, "Save IRIS");
+			break;
+		case R_IRIZ:
+			strcpy(str, "Save IRIS");
+			break;
+		case R_HAMX:
+			strcpy(str, "Save HAMX");
+			break;
+		case R_JPEG90:
+		case R_MOVIE:
+		case R_AVICODEC:
+		case R_AVIRAW:
+		case R_AVIJPEG:
+			strcpy(str, "Save JPEG");
+			break;
+			
+		case R_TARGA:	/* default targa */
+		default:
+			strcpy(str, "Save Targa");
+			break;
+	}	
+}
+
+/* calls fileselect */
+void BIF_save_rendered_image_fs(void)
+{
+	RenderResult *rr= RE_GetResult(RE_GetRender("Render"));
+	
+	if(!rr) {
+		error("No image rendered");
+	} else {
+		char dir[FILE_MAXDIR * 2], str[FILE_MAXFILE * 2];
+		
+		if(G.ima[0]==0) {
+			strcpy(dir, G.sce);
+			BLI_splitdirstring(dir, str);
+			strcpy(G.ima, dir);
+		}
+		
+		save_image_filesel_str(str);
+		activate_fileselect(FILE_SPECIAL, str, G.ima, save_rendered_image_cb);
+	}
+}
+