Remove Blender Internal and legacy viewport from Blender 2.8.

Brecht authored this commit, but he gave me the honours to actually
do it. Here it goes; Blender Internal. Bye bye, you did great!

* Point density, voxel data, ocean, environment map textures were removed,
  as these only worked within BI rendering. Note that the ocean modifier
  and the Cycles point density shader node continue to work.
* Dynamic paint using material shading was removed, as this only worked
  with BI. If we ever wanted to support this again probably it should go
  through the baking API.
* GPU shader export through the Python API was removed. This only worked
  for the old BI GLSL shaders, which no longer exists. Doing something
  similar for Eevee would be significantly more complicated because it
  uses a lot of multiplass rendering and logic outside the shader, it's
  probably impractical.
* Collada material import / export code is mostly gone, as it only worked
  for BI materials. We need to add Cycles / Eevee material support at some
  point.
* The mesh noise operator was removed since it only worked with BI
  material texture slots. A displacement modifier can be used instead.
* The delete texture paint slot operator was removed since it only worked
  for BI material texture slots. Could be added back with node support.

* Not all legacy viewport features are supported in the new viewport, but
  their code was removed. If we need to bring anything back we can look at
  older git revisions.
* There is some legacy viewport code that I could not remove yet, and some
  that I probably missed.
* Shader node execution code was left mostly intact, even though it is not
  used anywhere now. We may eventually use this to replace the texture
  nodes with Cycles / Eevee shader nodes.

* The Cycles Bake panel now includes settings for baking multires normal
  and displacement maps. The underlying code needs to be merged properly,
  and we plan to add back support for multires AO baking and add support
  to Cycles baking for features like vertex color, displacement, and other
  missing baking features.

* This commit removes DNA and the Python API for BI material, lamp, world
  and scene settings. This breaks a lot of addons.
* There is more DNA that can be removed or renamed, where Cycles or Eevee
  are reusing some old BI properties but the names are not really correct
  anymore.
* Texture slots for materials, lamps and world were removed. They remain
  for brushes, particles and freestyle linestyles.
* 'BLENDER_RENDER' remains in the COMPAT_ENGINES of UI panels. Cycles and
  other renderers use this to find all panels to show, minus a few panels
  that they have their own replacement for.

1 files changed, 1 insertions, 100 deletions

diff --git a/source/blender/render/intern/include/zbuf.h b/source/blender/render/intern/include/zbuf.h
index 6fc1a4c2656..1a93fc6c3b2 100644
--- a/source/blender/render/intern/include/zbuf.h
+++ b/source/blender/render/intern/include/zbuf.h
@@ -33,57 +33,6 @@
 #ifndef __ZBUF_H__
 #define __ZBUF_H__
 
-struct RenderPart;
-struct RenderLayer;
-struct LampRen;
-struct ListBase;
-struct ZSpan;
-struct APixstrand;
-struct APixstr;
-struct StrandShadeCache;
-
-void fillrect(int *rect, int x, int y, int val);
-
-/**
- * Converts a world coordinate into a homogeneous coordinate in view
- * coordinates. 
- */
-void projectvert(const float v1[3], float winmat[4][4], float adr[4]);
-void projectverto(const float v1[3], float winmat[4][4], float adr[4]);
-int testclip(const float v[3]);
-
-void zbuffer_shadow(struct Render *re, float winmat[4][4], struct LampRen *lar, int *rectz, int size, float jitx, float jity);
-void zbuffer_abuf_shadow(struct Render *re, struct LampRen *lar, float winmat[4][4], struct APixstr *APixbuf, struct APixstrand *apixbuf, struct ListBase *apsmbase, int size, int samples, float (*jit)[2]);
-void zbuffer_solid(struct RenderPart *pa, struct RenderLayer *rl, void (*fillfunc)(struct RenderPart *, struct ZSpan *, int, void *), void *data);
-
-unsigned short *zbuffer_transp_shade(struct RenderPart *pa, struct RenderLayer *rl, float *pass, struct ListBase *psmlist);
-void zbuffer_sss(RenderPart *pa, unsigned int lay, void *handle, void (*func)(void *, int, int, int, int, int));
-int zbuffer_strands_abuf(struct Render *re, struct RenderPart *pa, struct APixstrand *apixbuf, struct ListBase *apsmbase, unsigned int lay, int negzmask, float winmat[4][4], int winx, int winy, int sample, float (*jit)[2], float clipcrop, int shadow, struct StrandShadeCache *cache);
-
-typedef struct APixstr {
-	unsigned short mask[4];		/* jitter mask */
-	int z[4];					/* distance    */
-	int p[4];					/* index       */
-	int obi[4];					/* object instance */
-	short shadfac[4];			/* optimize storage for irregular shadow */
-	struct APixstr *next;
-} APixstr;
-
-typedef struct APixstrand {
-	unsigned short mask[4];		/* jitter mask */
-	int z[4];					/* distance    */
-	int p[4];					/* index       */
-	int obi[4];					/* object instance */
-	int seg[4];					/* for strands, segment number */
-	float u[4], v[4];			/* for strands, u,v coordinate in segment */
-	struct APixstrand *next;
-} APixstrand;
-
-typedef struct APixstrMain {
-	struct APixstrMain *next, *prev;
-	void *ps;
-} APixstrMain;
-
 /* span fill in method, is also used to localize data for zbuffering */
 typedef struct ZSpan {
 	int rectx, recty;						/* range for clipping */
@@ -91,61 +40,13 @@ typedef struct ZSpan {
 	int miny1, maxy1, miny2, maxy2;			/* actual filled in range */
 	const float *minp1, *maxp1, *minp2, *maxp2;	/* vertex pointers detect min/max range in */
 	float *span1, *span2;
-	
-	float zmulx, zmuly, zofsx, zofsy;		/* transform from hoco to zbuf co */
-	
-	int *rectz, *arectz;					/* zbuffers, arectz is for transparent */
-	int *rectz1;							/* secondary z buffer for shadowbuffer (2nd closest z) */
-	int *rectp;								/* polygon index buffer */
-	int *recto;								/* object buffer */
-	int *rectmask;							/* negative zmask buffer */
-	APixstr *apixbuf, *curpstr;				/* apixbuf for transparent */
-	APixstrand *curpstrand;					/* same for strands */
-	struct ListBase *apsmbase;
-	
-	int polygon_offset;						/* offset in Z */
-	float shad_alpha;						/* copy from material, used by irregular shadbuf */
-	int mask, apsmcounter;					/* in use by apixbuf */
-	int apstrandmcounter;
-
-	float clipcrop;							/* for shadow, was in R global before */
-
-	void *sss_handle;						/* used by sss */
-	void (*sss_func)(void *, int, int, int, int, int);
-	
-	void (*zbuffunc)(struct ZSpan *, int, int, const float *, const float *, const float *, const float *);
-	void (*zbuflinefunc)(struct ZSpan *, int, int, const float *, const float *);
-	
 } ZSpan;
 
-/* exported to shadbuf.c */
-void zbufclip4(struct ZSpan *zspan, int obi, int zvlnr,
-               const float f1[4], const float f2[4], const float f3[4], const float f4[4],
-               const int c1, const int c2, const int c3, const int c4);
+void zbuf_alloc_span(struct ZSpan *zspan, int rectx, int recty);
 void zbuf_free_span(struct ZSpan *zspan);
-void freepsA(struct ListBase *lb);
 
-/* to rendercore.c */
 void zspan_scanconvert(struct ZSpan *zpan, void *handle, float *v1, float *v2, float *v3,
                        void (*func)(void *, int, int, float, float) );
 
-/* exported to edge render... */
-void zbufclip(struct ZSpan *zspan, int obi, int zvlnr,
-              const float f1[4], const float f2[4], const float f3[4],
-              const int c1, const int c2, const int c3);
-void zbuf_alloc_span(struct ZSpan *zspan, int rectx, int recty, float clipcrop);
-void zbufclipwire(struct ZSpan *zspan, int obi, int zvlnr, int ec,
-                  const float ho1[4], const float ho2[4], const float ho3[4], const float ho4[4],
-                  const int c1, const int c2, const int c3, const int c4);
-
-/* exported to shadeinput.c */
-void zbuf_make_winmat(Render *re, float winmat[4][4]);
-void zbuf_render_project(float winmat[4][4], const float co[3], float ho[4]);
-
-/* should not really be exposed, bad! */
-void hoco_to_zco(ZSpan *zspan, float zco[3], const float hoco[4]);
-void zspan_scanconvert_strand(ZSpan *zspan, void *handle, float *v1, float *v2, float *v3, void (*func)(void *, int, int, float, float, float) );
-void zbufsinglewire(ZSpan *zspan, int obi, int zvlnr, const float ho1[4], const float ho2[4]);
-
 #endif