Orange branch: OpenEXR finally in Blender!

Credits go to Gernot Ziegler, who originally coded EXR support, and to
Austin  Benesh for bringing it further. Kent Mein provided a lot of code
for integrating float buffers in Blender imbuf and ImBuf API cleanup,
and provided Make and Scons and static linking.

At this moment; the EXR libraries are a *dependency*, so you cannot get
the Orange branch compiled without having OpenEXR installed. Get the
(precompiled or sources) stuff from www.openexr.com. Current default is
that the headers and lib resides in /user/local/

Several changes/additions/fixes were added:

- EXR code only supported 'half' format (16 bits per channel). I've added
  float writing, but for reading it I need tomorrow. :)
- Quite some clumsy copying of data happened in EXR code.
- cleaned up the api calls already a bit, preparing for more advanced
  support
- Zbuffers were saved 16 bits, now 32 bits
- automatic adding of .exr extensions went wrong

Imbuf:

- added proper imbuf->flags and imbuf->mall support for float buffers, it
  was created for *each* imbuf. :)
- found bugs for float buffers in scaling and flipping. Code there will
  need more checks still
- imbuf also needs to be verified to behave properly when no 32 bits
  rect exists (for saving for example)

TODO:

- support internal float images for textures, backbuf, AO probes, and
  display in Image window

Hope this commit won't screwup syncing with bf-blender... :/

1 files changed, 4 insertions, 33 deletions

diff --git a/source/blender/imbuf/IMB_imbuf.h b/source/blender/imbuf/IMB_imbuf.h
index b631ac79a06..aa69e680c35 100644
--- a/source/blender/imbuf/IMB_imbuf.h
+++ b/source/blender/imbuf/IMB_imbuf.h
@@ -196,31 +196,8 @@ void IMB_freecmapImBuf(struct ImBuf * ibuf);
  *
  * @attention Defined in rectop.c
  */
-void IMB_rectop(struct ImBuf *dbuf,
-			struct ImBuf *sbuf,
-			int destx,
-			int desty,
-			int srcx,
-			int srcy,
-			int width,
-			int height,
-			void (*operation)(unsigned int *, unsigned int*, int, int),
-			int value);
-
-/**
- *
- * @attention Defined in rectop.c
- */
-void IMB_rectoptot(struct ImBuf *dbuf,
-			   struct ImBuf *sbuf,
-			   void (*operation)(unsigned int *, unsigned int*, int, int),
-			   int value);
-
-/**
- *
- * @attention Defined in rectop.c
- */
-void IMB_rectcpy(unsigned int *drect, unsigned int *srect, int x, int dummy);
+void IMB_rectcpy(struct ImBuf *drect, struct ImBuf *srect, int destx,
+	int desty, int srcx, int srcy, int width, int height);
 
 /**
  * Return the length (in frames) of the given @a anim.
@@ -360,7 +337,7 @@ void IMB_gamwarp(struct ImBuf *ibuf, double gamma);
  *
  * @attention Defined in imageprocess.c
  */
-void IMB_convert_rgba_to_abgr(int size, unsigned int *rect);
+void IMB_convert_rgba_to_abgr(struct ImBuf *ibuf);
 
 /**
  * Change the ordering of the colour bytes pointed to by rect from
@@ -495,7 +472,7 @@ void IMB_freezbufImBuf(struct ImBuf * ibuf);
  *
  * @attention Defined in rectop.c
  */
-void IMB_rectfill(unsigned int *drect, unsigned int *srect, int x, int value);
+void IMB_rectfill(struct ImBuf *drect, float col[4]);
 
 
 #ifdef WITH_QUICKTIME
@@ -513,12 +490,6 @@ void quicktime_exit(void);
 
 #endif //WITH_QUICKTIME
 
-/* radhdr: Temporary routine to save directly from render floatbuffer.
-   Defined in radiance_hdr.c
-   Called by schrijfplaatje() in toets.c */
-short imb_savehdr_fromfloat(float *fbuf, char *name, int width, int height);
-
-
 /* intern/dynlibtiff.c */
 void libtiff_exit(void);