+++ /dev/null
-/* xscreensaver, Copyright (c) 2012-2015 Jamie Zawinski <jwz@jwz.org>
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation. No representations are made about the suitability of this
- * software for any purpose. It is provided "as is" without express or
- * implied warranty.
- */
-
-/* A compatibility shim to allow OpenGL 1.3 source code to work in an
- OpenGLES environment, where almost every OpenGL 1.3 function has
- been "deprecated".
-
- There are two major operations going on here:
-
- - Converting calls to glBegin + glVertex3f + glEnd to glDrawArrays
- - Implementing display lists.
-
-
- From an API point of view, OpenGL 1.3 and earlier code looks like this:
-
- glLightfv (GL_LIGHT0, GL_POSITION, ...);
- glLightfv (GL_LIGHT0, GL_AMBIENT, ...);
-
- glMatrixMode (GL_PROJECTION);
- glLoadIdentity ();
- gluPerspective (...);
-
- glMatrixMode (GL_MODELVIEW);
- glLoadIdentity ();
- gluLookAt (...);
-
- glPushMatrix ();
-
- glRotatef (...);
-
- glColor3f (...);
-
- glBegin (GL_TRIANGLES);
- glNormal3f (...);
- glVertex3f (...);
- glVertex3f (...);
- glVertex3f (...);
- glEnd ();
-
- glPopMatrix ();
-
- glFinish ();
-
-
- OpenGLES broke that model by eliminating glBegin(). Instead of
- iterating a sequence of vertexes, you need to pack your points into
- an array first, e.g.:
-
- GLfloat coords[] = {
- 0, 0, 0,
- 0, 1, 0,
- ...
- };
-
- glDrawArrays (GL_TRIANGLES, 0, 3);
-
- The projection model (glRotatef, etc.) works the same, but glColor()
- is missing. You're expected to encode that into your arrays.
-
- Also, OpenGLES doesn't support display lists at all.
-
-
- So this code shadows all of the functions that are allowed within
- glBegin, builds up an array, and calls glDrawArrays at the end.
-
- Likewise, it shadows all of the functions that are allowed within
- glNewList and records those calls for later playback.
-
-
- This code only handles OpenGLES 1.x, not 2.x.
-
- OpenGLES 2.0 broke things further by eliminating the whole OpenGL
- lighting model. Instead of specifying the positions and properties
- of your lights using the glLight* API, now you are expected to
- implement it all yourself by downloading C-like code into the GPU
- directly. This is more flexible, in that if you wanted a completely
- different lighting model than what OpenGL provides, you could do
- that, but it leaves you needing to download boilerplate to reproduce
- what used to be built in.
-
-
- Incidentally, the OpenGL numbering scheme goes something like this:
-
- OpenGL 1.0 1992
- OpenGL 1.1 1997 (improved texture support)
- OpenGL 1.2 1998 (nothing interesting)
- OpenGL 1.3 2001 (multisampling, cubemaps)
- OpenGL 1.4 2002 (added auto-mipmapping)
- OpenGLES 1.0 2003 (deprecated 80% of the language; fork of OpenGL 1.3)
- OpenGL 1.5 2003 (added VBOs)
- OpenGLES 1.1 2004 (fork of OpenGL 1.5)
- OpenGL 2.0 2004 (a political quagmire)
- OpenGLES 2.0 2007 (deprecated 95% of the language; fork of OpenGL 2.0)
- OpenGL 3.0 2008 (added FBOs, VAOs, deprecated 60% of the language)
-
-
- Some things that are missing:
-
- - glTexGeni, meaning no spherical environment-mapping textures.
-
- - gluNewTess, meaning no tesselation of complex objects.
-
- - glMap2f mesh evaluators, meaning no Utah Teapot.
-
- - glPolygonMode with GL_LINE or GL_POINT, meaning no wireframe modes
- that do hidden-surface removal.
-
- - glSelectBuffer, meaning no mouse-hit detection on rendered objects.
-
- - gluNewQuadric, gluCylinder, etc: rewrite your code to use tube.c, etc.
-
- - Putting verts in a display list without a wrapping glBegin.
- I didn't realize that even worked! Lockward used to do that,
- before I fixed it to not.
-
- - Not every function is implemented; just the ones that I needed for
- xscreensaver. However, the trivial ones are trivial to enable
- as they come up. Harder ones will be harder.
-
- As a result of that, these savers look wrong:
-
- atlantis Uses EYE_PLANE.
- blocktube Uses SPHERE_MAP.
- dnalogo Uses GLUtesselator.
- extrusion Uses all kinds of GLUT crap.
- flyingtoasters Uses SPHERE_MAP.
- winduprobot Uses SPHERE_MAP.
- jigglypuff Uses SPHERE_MAP (in chrome mode), GL_LINE (in wireframe)
- jigsaw Uses GLUtesselator.
- pinion Uses glSelectBuffer and gluPickMatrix for mouse-clicks.
- pipes Uses glMap2f for the Utah Teapot.
- polyhedra Uses GLUtesselator (concave objects); also Utah Teapot.
- skytentacles Uses GL_LINE in -cel mode.
- timetunnel Uses GL_CONSTANT_ALPHA and all kinds of other stuff.
-*/
-
-
-#undef DEBUG
-
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif /* HAVE_CONFIG_H */
-
-#ifdef HAVE_JWZGLES /* whole file */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <math.h>
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif /* HAVE_UNISTD_H */
-
-#if defined(USE_IPHONE)
-# include <OpenGLES/ES1/gl.h>
-# include <OpenGLES/ES1/glext.h>
-#elif defined(HAVE_COCOA)
-# include <OpenGL/gl.h>
-# include <OpenGL/glu.h>
-#elif defined(HAVE_ANDROID)
-# include <GLES/gl.h>
-#else /* real X11 */
-# ifndef GL_GLEXT_PROTOTYPES
-# define GL_GLEXT_PROTOTYPES /* for glBindBuffer */
-# endif
-# include <GL/glx.h>
-# include <GL/glu.h>
-#endif
-
-#include "jwzglesI.h"
-
-#define STRINGIFY(X) #X
-
-#undef countof
-#define countof(x) (sizeof((x))/sizeof((*x)))
-
-#undef Assert
-
-#ifdef HAVE_COCOA
- extern void jwxyz_abort (const char *fmt, ...) __dead2;
-# define Assert(C,S) do { if (!(C)) { jwxyz_abort ("%s",S); }} while(0)
-#else
-# define Assert(C,S) do { \
- if (!(C)) { \
- fprintf (stderr, "jwzgles: %s\n", S); \
- abort(); \
- }} while(0)
-#endif
-
-
-typedef struct { GLfloat x, y, z; } XYZ;
-typedef struct { GLfloat x, y, z, w; } XYZW;
-typedef struct { GLfloat s, t, r, q; } STRQ;
-typedef struct { GLfloat r, g, b, a; } RGBA;
-
-
-/* Used to record all calls to glVertex3f, glNormal3f, etc.
- while inside glBegin / glEnd so that we can convert that
- to a single call to glDrawArrays.
- */
-typedef struct {
- int mode;
- int count, size; /* size of each array */
-
- XYZW *verts; /* Arrays being built */
- XYZ *norms;
- STRQ *tex;
- RGBA *color;
-
- int ncount; /* How many normals, tex coords and colors were */
- int tcount; /* used. We optimize based on "0, 1, or many". */
- int ccount;
- int materialistic; /* Whether glMaterial was called inside glBegin */
-
- XYZ cnorm; /* Prevailing normal/texture/color while building */
- STRQ ctex;
- RGBA ccolor;
-
-} vert_set;
-
-
-typedef void (*list_fn_cb) (void);
-
-
-/* We need this nonsense because you can't cast a double to a void*
- or vice versa. They tend to be passed in different registers,
- and you need to know about that because it's still 1972 here.
- */
-typedef union {
- const void *v; GLfloat f; GLuint i; GLshort s; GLdouble d;
-} void_int;
-
-typedef struct { /* saved args for glDrawArrays */
- int binding, size, type, stride, bytes;
- void *data;
-} draw_array;
-
-typedef enum { /* shorthand describing arglist signature */
- PROTO_VOID, /* no args */
- PROTO_I, /* 1 int arg */
- PROTO_F, /* 1 float arg */
- PROTO_II, /* int, int */
- PROTO_FF, /* float, float */
- PROTO_IF, /* int, float */
- PROTO_III, /* int, int, int */
- PROTO_FFF, /* float, float, float */
- PROTO_IIF, /* int, int, float */
- PROTO_IIII, /* int, int, int, int */
- PROTO_FFFF, /* float, float, float, float */
- PROTO_IIV, /* int, int[4] */
- PROTO_IFV, /* int, float[4] */
- PROTO_IIIV, /* int, int, int[4] */
- PROTO_IIFV, /* int, int, float[4] */
- PROTO_FV16, /* float[16] */
- PROTO_ARRAYS /* glDrawArrays */
-} fn_proto;
-
-typedef struct { /* A single element of a display list */
- const char *name;
- list_fn_cb fn; /* saved function pointer */
- fn_proto proto; /* arglist prototype */
- draw_array *arrays; /* args for glDrawArrays */
- void_int argv[16]; /* args for everything else */
-} list_fn;
-
-
-typedef struct { /* a display list: saved activity within glNewList */
- int id;
- int size, count;
- list_fn *fns;
-
- /* Named buffer that should be freed when this display list is deleted. */
- GLuint buffer;
-
-} list;
-
-
-typedef struct { /* All display lists */
- list *lists;
- int count, size;
-} list_set;
-
-
-#define ISENABLED_TEXTURE_2D (1<<0)
-#define ISENABLED_TEXTURE_GEN_S (1<<1)
-#define ISENABLED_TEXTURE_GEN_T (1<<2)
-#define ISENABLED_TEXTURE_GEN_R (1<<3)
-#define ISENABLED_TEXTURE_GEN_Q (1<<4)
-#define ISENABLED_LIGHTING (1<<5)
-#define ISENABLED_BLEND (1<<6)
-#define ISENABLED_DEPTH_TEST (1<<7)
-#define ISENABLED_CULL_FACE (1<<8)
-#define ISENABLED_NORMALIZE (1<<9)
-#define ISENABLED_FOG (1<<10)
-#define ISENABLED_COLMAT (1<<11)
-#define ISENABLED_VERT_ARRAY (1<<12)
-#define ISENABLED_NORM_ARRAY (1<<13)
-#define ISENABLED_TEX_ARRAY (1<<14)
-#define ISENABLED_COLOR_ARRAY (1<<15)
-#define ISENABLED_ALPHA_TEST (1<<16)
-
-
-typedef struct {
- GLuint mode;
- GLfloat obj[4], eye[4];
-} texgen_state;
-
-
-typedef struct { /* global state */
-
- vert_set set; /* set being built */
-
- int compiling_list; /* list id if inside glNewList; 0 means immediate */
- int replaying_list; /* depth of call stack to glCallList */
- int compiling_verts; /* inside glBegin */
-
- list_set lists; /* saved lists */
-
- unsigned long enabled; /* enabled flags, immediate mode */
- unsigned long list_enabled; /* and for the list-in-progress */
-
- texgen_state s, t, r, q;
-
-} jwzgles_state;
-
-
-static jwzgles_state *state = 0;
-
-
-#ifdef DEBUG
-# define LOG(A) fprintf(stderr,"jwzgles: " A "\n")
-# define LOG1(A,B) fprintf(stderr,"jwzgles: " A "\n",B)
-# define LOG2(A,B,C) fprintf(stderr,"jwzgles: " A "\n",B,C)
-# define LOG3(A,B,C,D) fprintf(stderr,"jwzgles: " A "\n",B,C,D)
-# define LOG4(A,B,C,D,E) fprintf(stderr,"jwzgles: " A "\n",B,C,D,E)
-# define LOG5(A,B,C,D,E,F) fprintf(stderr,"jwzgles: " A "\n",B,C,D,E,F)
-# define LOG6(A,B,C,D,E,F,G) fprintf(stderr,"jwzgles: " A "\n",B,C,D,E,F,G)
-# define LOG7(A,B,C,D,E,F,G,H) fprintf(stderr,"jwzgles: " A "\n",B,C,D,E,F,G,H)
-# define LOG8(A,B,C,D,E,F,G,H,I)\
- fprintf(stderr,"jwzgles: "A "\n",B,C,D,E,F,G,H,I)
-# define LOG9(A,B,C,D,E,F,G,H,I,J)\
- fprintf(stderr,"jwzgles: "A "\n",B,C,D,E,F,G,H,I,J)
-# define LOG10(A,B,C,D,E,F,G,H,I,J,K)\
- fprintf(stderr,"jwzgles: "A "\n",B,C,D,E,F,G,H,I,J,K)
-# define LOG17(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R)\
- fprintf(stderr,"jwzgles: "A "\n",B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R)
-# define CHECK(S) check_gl_error(S)
-#else
-# define LOG(A) /* */
-# define LOG1(A,B) /* */
-# define LOG2(A,B,C) /* */
-# define LOG3(A,B,C,D) /* */
-# define LOG4(A,B,C,D,E) /* */
-# define LOG5(A,B,C,D,E,F) /* */
-# define LOG6(A,B,C,D,E,F,G) /* */
-# define LOG7(A,B,C,D,E,F,G,H) /* */
-# define LOG8(A,B,C,D,E,F,G,H,I) /* */
-# define LOG9(A,B,C,D,E,F,G,H,I,J) /* */
-# define LOG10(A,B,C,D,E,F,G,H,I,J,K) /* */
-# define LOG17(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R) /* */
-# define CHECK(S) /* */
-#endif
-
-#ifdef DEBUG
-static const char *
-mode_desc (int mode) /* for debugging messages */
-{
- switch (mode) {
-# define SS(X) case GL_##X: return STRINGIFY(X);
- SS(ALPHA)
- SS(ALPHA_TEST)
- SS(AMBIENT)
- SS(AMBIENT_AND_DIFFUSE)
- SS(ARRAY_BUFFER)
- SS(AUTO_NORMAL)
- SS(BACK)
- SS(BLEND)
- SS(BLEND_DST)
- SS(BLEND_SRC)
- SS(BLEND_SRC_ALPHA)
- SS(BYTE)
- SS(C3F_V3F)
- SS(C4F_N3F_V3F)
- SS(C4UB_V2F)
- SS(C4UB_V3F)
- SS(CCW)
- SS(CLAMP)
- SS(COLOR_ARRAY)
- SS(COLOR_ARRAY_BUFFER_BINDING);
- SS(COLOR_MATERIAL)
- SS(COLOR_MATERIAL_FACE)
- SS(COLOR_MATERIAL_PARAMETER)
- SS(COMPILE)
- SS(CULL_FACE)
- SS(CW)
- SS(DECAL)
- SS(DEPTH_BUFFER_BIT)
- SS(DEPTH_TEST)
- SS(DIFFUSE)
- SS(DOUBLEBUFFER)
- SS(DST_ALPHA)
- SS(DST_COLOR)
- SS(DYNAMIC_DRAW)
- SS(ELEMENT_ARRAY_BUFFER)
- SS(EYE_LINEAR)
- SS(EYE_PLANE)
- SS(FEEDBACK)
- SS(FILL)
- SS(FLAT)
- SS(FLOAT)
- SS(FOG)
- SS(FRONT)
- SS(FRONT_AND_BACK)
- SS(GREATER)
- SS(INTENSITY)
- SS(INVALID_ENUM)
- SS(INVALID_OPERATION)
- SS(INVALID_VALUE)
- SS(LESS)
- SS(LIGHT0)
- SS(LIGHT1)
- SS(LIGHT2)
- SS(LIGHT3)
- SS(LIGHTING)
- SS(LIGHT_MODEL_AMBIENT)
- SS(LIGHT_MODEL_COLOR_CONTROL)
- SS(LIGHT_MODEL_LOCAL_VIEWER)
- SS(LIGHT_MODEL_TWO_SIDE)
- SS(LINE)
- SS(LINEAR)
- SS(LINEAR_MIPMAP_LINEAR)
- SS(LINEAR_MIPMAP_NEAREST)
- SS(LINES)
- SS(LINE_LOOP)
- SS(LINE_STRIP)
- SS(LUMINANCE)
- SS(LUMINANCE_ALPHA)
- SS(MATRIX_MODE)
- SS(MODELVIEW)
- SS(MODULATE)
- SS(N3F_V3F)
- SS(NEAREST)
- SS(NEAREST_MIPMAP_LINEAR)
- SS(NEAREST_MIPMAP_NEAREST)
- SS(NORMALIZE)
- SS(NORMAL_ARRAY)
- SS(NORMAL_ARRAY_BUFFER_BINDING);
- SS(OBJECT_LINEAR)
- SS(OBJECT_PLANE)
- SS(ONE_MINUS_DST_ALPHA)
- SS(ONE_MINUS_DST_COLOR)
- SS(ONE_MINUS_SRC_ALPHA)
- SS(ONE_MINUS_SRC_COLOR)
- SS(OUT_OF_MEMORY)
- SS(PACK_ALIGNMENT)
- SS(POINTS)
- SS(POLYGON)
- SS(POLYGON_OFFSET_FILL)
- SS(POLYGON_SMOOTH)
- SS(POLYGON_STIPPLE)
- SS(POSITION)
- SS(PROJECTION)
- SS(Q)
- SS(QUADS)
- SS(QUAD_STRIP)
- SS(R)
- SS(RENDER)
- SS(REPEAT)
- SS(RGB)
- SS(RGBA)
- SS(RGBA_MODE)
- SS(S)
- SS(SELECT)
- SS(SEPARATE_SPECULAR_COLOR)
- SS(SHADE_MODEL)
- SS(SHININESS)
- SS(SHORT)
- SS(SINGLE_COLOR)
- SS(SMOOTH)
- SS(SPECULAR)
- SS(SPHERE_MAP)
- SS(SRC_ALPHA)
- SS(SRC_ALPHA_SATURATE)
- SS(SRC_COLOR)
- SS(STACK_OVERFLOW)
- SS(STACK_UNDERFLOW)
- SS(STATIC_DRAW)
- SS(STENCIL_BUFFER_BIT)
- SS(T)
- SS(T2F_C3F_V3F)
- SS(T2F_C4F_N3F_V3F)
- SS(T2F_C4UB_V3F)
- SS(T2F_N3F_V3F)
- SS(T2F_V3F)
- SS(T4F_C4F_N3F_V4F)
- SS(T4F_V4F)
- SS(TEXTURE)
- SS(TEXTURE_1D)
- SS(TEXTURE_2D)
- SS(TEXTURE_ALPHA_SIZE)
- SS(TEXTURE_BINDING_2D)
- SS(TEXTURE_BLUE_SIZE)
- SS(TEXTURE_BORDER)
- SS(TEXTURE_BORDER_COLOR)
- SS(TEXTURE_COMPONENTS)
- SS(TEXTURE_COORD_ARRAY)
- SS(TEXTURE_COORD_ARRAY_BUFFER_BINDING);
- SS(TEXTURE_ENV)
- SS(TEXTURE_ENV_COLOR)
- SS(TEXTURE_ENV_MODE)
- SS(TEXTURE_GEN_MODE)
- SS(TEXTURE_GEN_Q)
- SS(TEXTURE_GEN_R)
- SS(TEXTURE_GEN_S)
- SS(TEXTURE_GEN_T)
- SS(TEXTURE_GREEN_SIZE)
- SS(TEXTURE_HEIGHT)
- SS(TEXTURE_INTENSITY_SIZE)
- SS(TEXTURE_LUMINANCE_SIZE)
- SS(TEXTURE_MAG_FILTER)
- SS(TEXTURE_MIN_FILTER)
- SS(TEXTURE_RED_SIZE)
- SS(TEXTURE_WRAP_S)
- SS(TEXTURE_WRAP_T)
- SS(TRIANGLES)
- SS(TRIANGLE_FAN)
- SS(TRIANGLE_STRIP)
- SS(UNPACK_ALIGNMENT)
- SS(UNPACK_ROW_LENGTH)
- SS(UNSIGNED_BYTE)
- SS(UNSIGNED_INT_8_8_8_8_REV)
- SS(UNSIGNED_SHORT)
- SS(V2F)
- SS(V3F)
- SS(VERTEX_ARRAY)
- SS(VERTEX_ARRAY_BUFFER_BINDING);
-/*SS(COLOR_BUFFER_BIT) -- same value as GL_LIGHT0 */
-# undef SS
- case (GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT):
- return "DEPTH_BUFFER_BIT | COLOR_BUFFER_BIT";
-/* Oops, same as INVALID_ENUM.
- case (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT):
- return "DEPTH_BUFFER_BIT | STENCIL_BUFFER_BIT";
-*/
- case (GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT):
- return "COLOR_BUFFER_BIT | STENCIL_BUFFER_BIT";
- case (GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT):
- return "DEPTH_BUFFER_BIT | COLOR_BUFFER_BIT | STENCIL_BUFFER_BIT";
- default:
- {
- static char buf[255];
- sprintf (buf, "0x%04X", mode);
- return buf;
- }
- }
-}
-
-static void
-check_gl_error (const char *s)
-{
- GLenum i = glGetError();
- if (i == GL_NO_ERROR) return;
- fprintf (stderr, "jwzgles: GL ERROR: %s: %s\n", s, mode_desc(i));
-}
-
-#endif /* DEBUG */
-
-
-static void
-make_room (const char *name, void **array, int span, int *count, int *size)
-{
- if (*count + 1 >= *size)
- {
- int new_size = (*count + 20) * 1.2; /* mildly exponential */
- *array = realloc (*array, new_size * span);
- Assert (*array, "out of memory");
- /* LOG3("%s: grew %d -> %d", name, *size, new_size); */
- *size = new_size;
- }
-}
-
-
-void
-jwzgles_reset (void)
-{
- if (! state)
- state = (jwzgles_state *) calloc (1, sizeof (*state));
-
- if (state->lists.lists)
- {
- state->compiling_list = 0;
- if (state->lists.count)
- jwzgles_glDeleteLists (1, state->lists.count);
- free (state->lists.lists);
- }
-
- if (state->set.verts) free (state->set.verts);
- if (state->set.norms) free (state->set.norms);
- if (state->set.tex) free (state->set.tex);
- if (state->set.color) free (state->set.color);
-
- memset (state, 0, sizeof(*state));
-
- state->s.mode = state->t.mode = state->r.mode = state->q.mode =
- GL_EYE_LINEAR;
- state->s.obj[0] = state->s.eye[0] = 1; /* s = 1 0 0 0 */
- state->t.obj[1] = state->t.eye[1] = 1; /* t = 0 1 0 0 */
-}
-
-
-int
-jwzgles_glGenLists (int n)
-{
- int i;
- int ret = 0;
-
- Assert (!state->compiling_verts, "glGenLists not allowed inside glBegin");
-
- /* Ensure space in state->lists, clear the one at the end, and tick counter
- Note that lists are never really deleted, and we can never re-use elements
- of this array. glDeleteLists zeroes out the contents of the list, but
- the list ID is still valid for use with glNewList forever.
- #### So maybe this should be a linked list instead of an array.
- */
- for (i = 0; i < n; i++)
- {
- list *L;
- int id = 0;
- make_room ("glGenLists",
- (void **) &state->lists.lists,
- sizeof (*state->lists.lists),
- &state->lists.count, &state->lists.size);
- state->lists.count++;
- id = state->lists.count;
- L = &state->lists.lists[id-1];
-
- memset (L, 0, sizeof (*L));
- L->id = id;
- if (ret == 0) ret = id;
- LOG1("glGenLists -> %d", L->id);
- }
-
- /* Return the ID of the first list allocated */
-
- return ret;
-}
-
-
-void
-jwzgles_glNewList (int id, int mode)
-{
- list *L;
- Assert (id > 0 && id <= state->lists.count, "glNewList: bogus ID");
- Assert (mode == GL_COMPILE, "glNewList: bad mode");
- Assert (!state->compiling_verts, "glNewList not allowed inside glBegin");
- Assert (!state->compiling_list, "nested glNewList");
- Assert (state->set.count == 0, "missing glEnd");
-
- L = &state->lists.lists[id-1];
- Assert (L->id == id, "glNewList corrupted");
-
- if (L->count != 0) jwzgles_glDeleteLists (L->id, 1); /* Overwriting */
- Assert (L->count == 0, "glNewList corrupted");
-
- state->compiling_list = id;
-
- state->list_enabled = state->enabled;
-
- LOG1("glNewList -> %d", id);
-}
-
-
-static void save_arrays (list_fn *, int);
-static void restore_arrays (list_fn *, int);
-static void copy_array_data (draw_array *, int, const char *);
-static void optimize_arrays (void);
-static void generate_texture_coords (GLuint, GLuint);
-
-
-void
-jwzgles_glEndList (void)
-{
- Assert (state->compiling_list, "extra glEndList");
- Assert (state->set.count == 0, "missing glEnd");
- Assert (!state->compiling_verts, "glEndList not allowed inside glBegin");
- LOG1("glEndList %d", state->compiling_list);
- optimize_arrays();
- state->compiling_list = 0;
- state->list_enabled = state->enabled;
-}
-
-
-static void
-list_push (const char * const name,
- list_fn_cb fn, fn_proto proto, void_int *av)
-{
- list *L;
- list_fn *F;
- int i;
-
- Assert (state->compiling_list > 0, "not inside glNewList");
- Assert (state->compiling_list <= state->lists.count, "glNewList corrupted");
-
- L = &state->lists.lists[state->compiling_list-1];
- Assert (L, "glNewList: no list");
-
- make_room ("glNewLists",
- (void **) &L->fns, sizeof (*L->fns),
- &L->count, &L->size);
- memset (&L->fns[L->count], 0, sizeof (*L->fns));
- F = L->fns + L->count;
-
- F->name = name;
- F->fn = fn;
- F->proto = proto;
- if (proto != PROTO_VOID)
- for (i = 0; i < countof(F->argv); i++)
- F->argv[i] = av[i];
-
-# ifdef DEBUG
- switch (proto) {
- case PROTO_VOID:
- LOG1 (" push %-12s", name);
- break;
- case PROTO_I:
- if (fn == (list_fn_cb) &jwzgles_glBegin ||
- fn == (list_fn_cb) &jwzgles_glFrontFace ||
- fn == (list_fn_cb) &jwzgles_glEnable ||
- fn == (list_fn_cb) &jwzgles_glDisable ||
- fn == (list_fn_cb) &jwzgles_glEnableClientState ||
- fn == (list_fn_cb) &jwzgles_glDisableClientState ||
- fn == (list_fn_cb) &jwzgles_glShadeModel ||
- fn == (list_fn_cb) &jwzgles_glMatrixMode)
- LOG2 (" push %-12s %s", name, mode_desc (av[0].i));
- else
- LOG2 (" push %-12s %d", name, av[0].i);
- break;
- case PROTO_F:
- LOG2 (" push %-12s %7.3f", name, av[0].f);
- break;
- case PROTO_II:
- if (fn == (list_fn_cb) &jwzgles_glBindTexture ||
- fn == (list_fn_cb) &jwzgles_glBindBuffer)
- LOG3 (" push %-12s %s %d", name, mode_desc (av[0].i), av[1].i);
- else
- LOG3 (" push %-12s %d %d", name, av[0].i, av[1].i);
- break;
- case PROTO_FF:
- LOG3 (" push %-12s %7.3f %7.3f", name, av[0].f, av[1].f);
- break;
- case PROTO_IF:
- LOG3 (" push %-12s %s %7.3f", name, mode_desc (av[0].i), av[1].f);
- break;
- case PROTO_III:
- case PROTO_ARRAYS:
- if (fn == (list_fn_cb) &jwzgles_glDrawArrays ||
- fn == (list_fn_cb) &jwzgles_glTexParameteri)
- LOG4 (" push %-12s %s %d %d", name, mode_desc (av[0].i),
- av[1].i, av[2].i);
- else
- LOG4 (" push %-12s %d %d %d", name, av[0].i, av[1].i, av[2].i);
- break;
- case PROTO_FFF:
- LOG4 (" push %-12s %7.3f %7.3f %7.3f", name, av[0].f, av[1].f, av[2].f);
- break;
- case PROTO_IIF:
- LOG4 (" push %-12s %s %s %7.3f", name,
- mode_desc(av[0].i), mode_desc(av[1].i), av[2].f);
- break;
- case PROTO_IIII:
- LOG5 (" push %-12s %d %d %d %d", name,
- av[0].i, av[1].i, av[2].i, av[3].i);
- break;
- case PROTO_FFFF:
- LOG5 (" push %-12s %7.3f %7.3f %7.3f %7.3f", name,
- av[0].f, av[1].f, av[2].f, av[3].f);
- break;
- case PROTO_IFV:
- LOG6 (" push %-12s %s %3.1f %3.1f %3.1f %3.1f", name, mode_desc (av[0].i),
- av[1].f, av[2].f, av[3].f, av[4].f);
- break;
- case PROTO_IIV:
- LOG6 (" push %-12s %s %d %d %d %d", name, mode_desc (av[0].i),
- av[1].i, av[2].i, av[3].i, av[4].i);
- break;
- case PROTO_IIFV:
- LOG7 (" push %-12s %s %-8s %3.1f %3.1f %3.1f %3.1f", name,
- mode_desc (av[0].i), mode_desc (av[1].i),
- av[2].f, av[3].f, av[4].f, av[5].f);
- break;
- case PROTO_IIIV:
- LOG7 (" push %-12s %s %-8s %3d %3d %3d %3d", name,
- mode_desc (av[0].i), mode_desc (av[1].i),
- av[2].i, av[3].i, av[4].i, av[5].i);
- break;
- case PROTO_FV16:
- LOG17 (" push %-12s ["
- "%8.3f %8.3f %8.3f %8.3f " "\n\t\t\t "
- "%8.3f %8.3f %8.3f %8.3f " "\n\t\t\t "
- "%8.3f %8.3f %8.3f %8.3f " "\n\t\t\t "
- "%8.3f %8.3f %8.3f %8.3f ]",
- name,
- av[0].f, av[1].f, av[2].f, av[3].f,
- av[4].f, av[5].f, av[6].f, av[7].f,
- av[8].f, av[9].f, av[10].f, av[11].f,
- av[12].f, av[13].f, av[14].f, av[15].f);
- break;
- default:
- Assert (0, "bogus prototype");
- break;
- }
-# endif /* DEBUG */
-
- if (proto == PROTO_ARRAYS) /* glDrawArrays */
- save_arrays (F, av[1].i + av[2].i);
-
- L->count++;
-}
-
-
-void
-jwzgles_glBegin (int mode)
-{
- Assert (!state->compiling_verts, "nested glBegin");
- state->compiling_verts++;
-
- /* Only these commands are allowed inside glBegin:
-
- glVertex -- not allowed outside
- glColor
- glSecondaryColor
- glIndex
- glNormal
- glFogCoord
- glTexCoord
- glMultiTexCoord
- glVertexAttrib
- glEvalCoord
- glEvalPoint
- glArrayElement -- not allowed outside
- glMaterial
- glEdgeFlag
- glCallList
- glCallLists
- */
-
- if (!state->replaying_list)
- LOG2 ("%sglBegin %s",
- (state->compiling_list || state->replaying_list ? " " : ""),
- mode_desc (mode));
-
- Assert (state->set.count == 0, "glBegin corrupted");
- state->set.mode = mode;
- state->set.count = 0;
- state->set.ncount = 0;
- state->set.tcount = 0;
- state->set.ccount = 0;
-}
-
-
-void
-jwzgles_glDeleteLists (int id0, int range)
-{
- Assert (!state->compiling_verts, "glDeleteLists not allowed inside glBegin");
-
- if (state->compiling_list)
- {
- void_int vv[2];
- vv[0].i = id0;
- vv[1].i = range;
- list_push ("glDeleteLists", (list_fn_cb) &jwzgles_glDeleteLists,
- PROTO_II, vv);
- }
- else
- {
- int id;
-
- if (!state->replaying_list)
- LOG2 ("glDeleteLists %d %d", id0, range);
-
- for (id = id0 + range - 1; id >= id0; id--)
- {
- int i;
- list *L;
- if (id == 0) continue; /* People do this stupid thing */
- if (id > state->lists.count) break; /* this too */
- Assert (id > 0 && id <= state->lists.count,
- "glDeleteLists: bogus ID");
- L = &state->lists.lists[id-1];
- Assert (L->id == id, "glDeleteLists corrupted");
-
- for (i = 0; i < L->count; i++)
- {
- list_fn *lf = &L->fns[i];
- if (lf->arrays)
- {
- int j;
- for (j = 0; j < 4; j++)
- /* If there's a binding, 'data' is an index, not a ptr. */
- if (!lf->arrays[j].binding &&
- lf->arrays[j].data)
- free (lf->arrays[j].data);
- free (lf->arrays);
- }
- }
- if (L->fns)
- free (L->fns);
- if (L->buffer)
- glDeleteBuffers (1, &L->buffer);
-
- memset (L, 0, sizeof (*L));
- L->id = id;
- }
- }
-}
-
-
-extern GLboolean
-jwzgles_glIsList (GLuint id)
-{
- return (id > 0 && id < state->lists.count);
-}
-
-
-
-void
-jwzgles_glNormal3fv (const GLfloat *v)
-{
- if (state->compiling_list && !state->compiling_verts)
- {
- void_int vv[3];
- vv[0].f = v[0];
- vv[1].f = v[1];
- vv[2].f = v[2];
- list_push ("glNormal3f", (list_fn_cb) &jwzgles_glNormal3f,
- PROTO_FFF, vv);
- }
- else
- {
- if (!state->replaying_list)
- LOG5 ("%s%sglNormal3f %7.3f %7.3f %7.3f",
- (state->compiling_list || state->replaying_list ? " " : ""),
- (state->compiling_verts ? " rec " : ""),
- v[0], v[1], v[2]);
-
- if (state->compiling_verts) /* inside glBegin */
- {
- state->set.cnorm.x = v[0];
- state->set.cnorm.y = v[1];
- state->set.cnorm.z = v[2];
- state->set.ncount++;
- if (state->set.count > 0 && state->set.ncount == 1) /* not first! */
- state->set.ncount++;
- }
- else /* outside glBegin */
- {
- glNormal3f (v[0], v[1], v[2]);
- CHECK("glNormal3f");
- }
- }
-}
-
-
-void
-jwzgles_glNormal3f (GLfloat x, GLfloat y, GLfloat z)
-{
- GLfloat v[3];
- v[0] = x;
- v[1] = y;
- v[2] = z;
- jwzgles_glNormal3fv (v);
-}
-
-
-void
-jwzgles_glTexCoord4fv (const GLfloat *v)
-{
- if (state->compiling_list && !state->compiling_verts)
- {
- void_int vv[4];
- vv[0].f = v[0];
- vv[1].f = v[1];
- vv[2].f = v[2];
- vv[3].f = v[3];
- list_push ("glTexCoord4f", (list_fn_cb) &jwzgles_glTexCoord4f,
- PROTO_FFFF, vv);
- }
- else
- {
- if (!state->replaying_list)
- LOG6 ("%s%sglTexCoord4f %7.3f %7.3f %7.3f %7.3f",
- (state->compiling_list || state->replaying_list ? " " : ""),
- (state->compiling_verts ? " rec " : ""),
- v[0], v[1], v[2], v[3]);
-
- Assert (state->compiling_verts, "glTexCoord4fv outside glBegin");
-
- if (state->compiling_verts) /* inside glBegin */
- {
- state->set.ctex.s = v[0];
- state->set.ctex.t = v[1];
- state->set.ctex.r = v[2];
- state->set.ctex.q = v[3];
- state->set.tcount++;
- if (state->set.count > 0 && state->set.tcount == 1) /* not first! */
- state->set.tcount++;
- }
- }
-}
-
-
-void
-jwzgles_glTexCoord4f (GLfloat s, GLfloat t, GLfloat r, GLfloat q)
-{
- GLfloat v[4];
- v[0] = s;
- v[1] = t;
- v[2] = r;
- v[3] = q;
- jwzgles_glTexCoord4fv (v);
-}
-
-
-void
-jwzgles_glTexCoord3fv (const GLfloat *v)
-{
- GLfloat vv[4];
- vv[0] = v[0];
- vv[1] = v[1];
- vv[2] = v[2];
- vv[3] = 1;
- jwzgles_glTexCoord4fv (vv);
-}
-
-
-void
-jwzgles_glTexCoord2fv (const GLfloat *v)
-{
- GLfloat vv[4];
- vv[0] = v[0];
- vv[1] = v[1];
- vv[2] = 0;
- vv[3] = 1;
- jwzgles_glTexCoord4fv (vv);
-}
-
-
-void
-jwzgles_glTexCoord3f (GLfloat s, GLfloat t, GLfloat r)
-{
- jwzgles_glTexCoord4f (s, t, r, 1);
-}
-
-
-void
-jwzgles_glTexCoord2f (GLfloat s, GLfloat t)
-{
- jwzgles_glTexCoord4f (s, t, 0, 1);
-}
-
-
-void
-jwzgles_glTexCoord1f (GLfloat s)
-{
- jwzgles_glTexCoord4f (s, 0, 0, 1);
-}
-
-
-/* glColor: GLfloat */
-
-void
-jwzgles_glColor4fv (const GLfloat *v)
-{
- if (state->compiling_list && !state->compiling_verts)
- {
- void_int vv[4];
- vv[0].f = v[0];
- vv[1].f = v[1];
- vv[2].f = v[2];
- vv[3].f = v[3];
- list_push ("glColor4f", (list_fn_cb) &jwzgles_glColor4f,
- PROTO_FFFF, vv);
- }
- else
- {
- if (!state->replaying_list)
- LOG6 ("%s%sglColor4f %7.3f %7.3f %7.3f %7.3f",
- (state->compiling_list || state->replaying_list ? " " : ""),
- (state->compiling_verts ? " rec " : ""),
- v[0], v[1], v[2], v[3]);
-
- if (state->compiling_verts) /* inside glBegin */
- {
- state->set.ccolor.r = v[0];
- state->set.ccolor.g = v[1];
- state->set.ccolor.b = v[2];
- state->set.ccolor.a = v[3];
- state->set.ccount++;
- if (state->set.count > 0 && state->set.ccount == 1) /* not first! */
- state->set.ccount++;
- }
- else /* outside glBegin */
- {
- glColor4f (v[0], v[1], v[2], v[3]);
- CHECK("glColor4");
- }
- }
-}
-
-
-void
-jwzgles_glColor4f (GLfloat r, GLfloat g, GLfloat b, GLfloat a)
-{
- GLfloat v[4];
- v[0] = r;
- v[1] = g;
- v[2] = b;
- v[3] = a;
- jwzgles_glColor4fv (v);
-}
-
-void
-jwzgles_glColor3f (GLfloat r, GLfloat g, GLfloat b)
-{
- jwzgles_glColor4f (r, g, b, 1);
-}
-
-void
-jwzgles_glColor3fv (const GLfloat *v)
-{
- jwzgles_glColor3f (v[0], v[1], v[2]);
-}
-
-
-/* glColor: GLdouble */
-
-void
-jwzgles_glColor4d (GLdouble r, GLdouble g, GLdouble b, GLdouble a)
-{
- jwzgles_glColor4f (r, g, b, a);
-}
-
-void
-jwzgles_glColor4dv (const GLdouble *v)
-{
- jwzgles_glColor4d (v[0], v[1], v[2], v[3]);
-}
-
-void
-jwzgles_glColor3d (GLdouble r, GLdouble g, GLdouble b)
-{
- jwzgles_glColor4d (r, g, b, 1.0);
-}
-
-void
-jwzgles_glColor3dv (const GLdouble *v)
-{
- jwzgles_glColor3d (v[0], v[1], v[2]);
-}
-
-
-/* glColor: GLint (INT_MIN - INT_MAX) */
-
-void
-jwzgles_glColor4i (GLint r, GLint g, GLint b, GLint a)
-{
- /* -0x8000000 - 0x7FFFFFFF => 0.0 - 1.0 */
- jwzgles_glColor4f (0.5 + (GLfloat) r / 0xFFFFFFFF,
- 0.5 + (GLfloat) g / 0xFFFFFFFF,
- 0.5 + (GLfloat) b / 0xFFFFFFFF,
- 0.5 + (GLfloat) a / 0xFFFFFFFF);
-}
-
-void
-jwzgles_glColor4iv (const GLint *v)
-{
- jwzgles_glColor4i (v[0], v[1], v[2], v[3]);
-}
-
-
-void
-jwzgles_glColor3i (GLint r, GLint g, GLint b)
-{
- jwzgles_glColor4i (r, g, b, 0x7FFFFFFF);
-}
-
-void
-jwzgles_glColor3iv (const GLint *v)
-{
- jwzgles_glColor3i (v[0], v[1], v[2]);
-}
-
-
-/* glColor: GLuint (0 - UINT_MAX) */
-
-void
-jwzgles_glColor4ui (GLuint r, GLuint g, GLuint b, GLuint a)
-{
- /* 0 - 0xFFFFFFFF => 0.0 - 1.0 */
- jwzgles_glColor4f ((GLfloat) r / 0xFFFFFFFF,
- (GLfloat) g / 0xFFFFFFFF,
- (GLfloat) b / 0xFFFFFFFF,
- (GLfloat) a / 0xFFFFFFFF);
-}
-
-void
-jwzgles_glColor4uiv (const GLuint *v)
-{
- jwzgles_glColor4ui (v[0], v[1], v[2], v[3]);
-}
-
-void
-jwzgles_glColor3ui (GLuint r, GLuint g, GLuint b)
-{
- jwzgles_glColor4ui (r, g, b, 0xFFFFFFFF);
-}
-
-void
-jwzgles_glColor3uiv (const GLuint *v)
-{
- jwzgles_glColor3ui (v[0], v[1], v[2]);
-}
-
-
-/* glColor: GLshort (SHRT_MIN - SHRT_MAX) */
-
-void
-jwzgles_glColor4s (GLshort r, GLshort g, GLshort b, GLshort a)
-{
- /* -0x8000 - 0x7FFF => 0.0 - 1.0 */
- jwzgles_glColor4f (0.5 + (GLfloat) r / 0xFFFF,
- 0.5 + (GLfloat) g / 0xFFFF,
- 0.5 + (GLfloat) b / 0xFFFF,
- 0.5 + (GLfloat) a / 0xFFFF);
-}
-
-void
-jwzgles_glColor4sv (const GLshort *v)
-{
- jwzgles_glColor4s (v[0], v[1], v[2], v[3]);
-}
-
-void
-jwzgles_glColor3s (GLshort r, GLshort g, GLshort b)
-{
- jwzgles_glColor4s (r, g, b, 0x7FFF);
-}
-
-void
-jwzgles_glColor3sv (const GLshort *v)
-{
- jwzgles_glColor3s (v[0], v[1], v[2]);
-}
-
-
-/* glColor: GLushort (0 - USHRT_MAX) */
-
-void
-jwzgles_glColor4us (GLushort r, GLushort g, GLushort b, GLushort a)
-{
- /* 0 - 0xFFFF => 0.0 - 1.0 */
- jwzgles_glColor4f ((GLfloat) r / 0xFFFF,
- (GLfloat) g / 0xFFFF,
- (GLfloat) b / 0xFFFF,
- (GLfloat) a / 0xFFFF);
-}
-
-void
-jwzgles_glColor4usv (const GLushort *v)
-{
- jwzgles_glColor4us (v[0], v[1], v[2], v[3]);
-}
-
-void
-jwzgles_glColor3us (GLushort r, GLushort g, GLushort b)
-{
- jwzgles_glColor4us (r, g, b, 0xFFFF);
-}
-
-void
-jwzgles_glColor3usv (const GLushort *v)
-{
- jwzgles_glColor3us (v[0], v[1], v[2]);
-}
-
-
-/* glColor: GLbyte (-128 - 127) */
-
-void
-jwzgles_glColor4b (GLbyte r, GLbyte g, GLbyte b, GLbyte a)
-{
- /* -128 - 127 => 0.0 - 1.0 */
- jwzgles_glColor4f (0.5 + (GLfloat) r / 255,
- 0.5 + (GLfloat) g / 255,
- 0.5 + (GLfloat) b / 255,
- 0.5 + (GLfloat) a / 255);
-}
-
-void
-jwzgles_glColor4bv (const GLbyte *v)
-{
- jwzgles_glColor4b (v[0], v[1], v[2], v[3]);
-}
-
-void
-jwzgles_glColor3b (GLbyte r, GLbyte g, GLbyte b)
-{
- jwzgles_glColor4b (r, g, b, 127);
-}
-
-void
-jwzgles_glColor3bv (const GLbyte *v)
-{
- jwzgles_glColor3b (v[0], v[1], v[2]);
-}
-
-
-/* glColor: GLubyte (0 - 255) */
-
-void
-jwzgles_glColor4ub (GLubyte r, GLubyte g, GLubyte b, GLubyte a)
-{
- /* 0 - 255 => 0.0 - 1.0 */
- jwzgles_glColor4f (r / 255.0, g / 255.0, b / 255.0, a / 255.0);
-}
-
-void
-jwzgles_glColor4ubv (const GLubyte *v)
-{
- jwzgles_glColor4ub (v[0], v[1], v[2], v[3]);
-}
-
-void
-jwzgles_glColor3ub (GLubyte r, GLubyte g, GLubyte b)
-{
- jwzgles_glColor4ub (r, g, b, 255);
-}
-
-void
-jwzgles_glColor3ubv (const GLubyte *v)
-{
- jwzgles_glColor3ub (v[0], v[1], v[2]);
-}
-
-
-
-void
-jwzgles_glMaterialfv (GLenum face, GLenum pname, const GLfloat *color)
-{
- /* If this is called inside glBegin/glEnd with a front ambient color,
- then treat it the same as glColor: set the color of the upcoming
- vertex.
-
- Other faces or lighting types within glBegin are ignored.
- */
-
- if (state->compiling_verts)
- {
- if ((face == GL_FRONT ||
- face == GL_FRONT_AND_BACK) &&
- (pname == GL_AMBIENT ||
- pname == GL_DIFFUSE ||
- pname == GL_AMBIENT_AND_DIFFUSE))
- {
- jwzgles_glColor4f (color[0], color[1], color[2], color[3]);
- state->set.materialistic++;
- }
- else
- LOG2 (" IGNORING glMaterialfv %s %s",
- mode_desc(face), mode_desc(pname));
- }
- else if (state->compiling_list)
- {
- void_int vv[6];
- vv[0].i = face;
- vv[1].i = pname;
- vv[2].f = color[0];
- vv[3].f = color[1];
- vv[4].f = color[2];
- vv[5].f = color[3];
- list_push ("glMaterialfv", (list_fn_cb) &jwzgles_glMaterialfv,
- PROTO_IIFV, vv);
- }
- else
- {
- /* If this is called outside of glBegin/glEnd with a front
- ambient color, then the intent is presumably for that color
- to apply to the upcoming vertexes (which may be played back
- from a list that does not have vertex colors in it). In that
- case, the only way to make the colors show up is to call
- glColor() with GL_COLOR_MATERIAL enabled.
-
- I'm not sure if this will have other inappropriate side effects...
- */
- if ((face == GL_FRONT ||
- face == GL_FRONT_AND_BACK) &&
- (pname == GL_AMBIENT ||
- pname == GL_DIFFUSE ||
- pname == GL_AMBIENT_AND_DIFFUSE))
- {
- jwzgles_glEnable (GL_COLOR_MATERIAL);
- jwzgles_glColor4f (color[0], color[1], color[2], color[3]);
- }
-
- /* OpenGLES seems to throw "invalid enum" for GL_FRONT -- but it
- goes ahead and sets the material anyway! No error if we just
- always use GL_FRONT_AND_BACK.
- */
- if (face == GL_FRONT)
- face = GL_FRONT_AND_BACK;
- if (! state->replaying_list)
- LOG7 ("direct %-12s %s %s %7.3f %7.3f %7.3f %7.3f", "glMaterialfv",
- mode_desc(face), mode_desc(pname),
- color[0], color[1], color[2], color[3]);
- glMaterialfv (face, pname, color); /* the real one */
- CHECK("glMaterialfv");
- }
-}
-
-
-void
-jwzgles_glMaterialiv (GLenum face, GLenum pname, const GLint *v)
-{
- GLfloat vv[4];
- vv[0] = v[0];
- vv[1] = v[1];
- vv[2] = v[2];
- vv[3] = 1;
- jwzgles_glMaterialfv (face, pname, vv);
-}
-
-void
-jwzgles_glMaterialf (GLenum face, GLenum pname, const GLfloat c)
-{
- GLfloat vv[4];
- vv[0] = c;
- vv[1] = c;
- vv[2] = c;
- vv[3] = 1;
- jwzgles_glMaterialfv (face, pname, vv);
-}
-
-
-void
-jwzgles_glMateriali (GLenum face, GLenum pname, const GLuint c)
-{
- jwzgles_glMaterialf (face, pname, c);
-}
-
-
-void
-jwzgles_glColorMaterial (GLenum face, GLenum mode)
-{
- Assert (!state->compiling_verts,
- "glColorMaterial not allowed inside glBegin");
-#if 0
- if (state->compiling_list)
- {
- void_int vv[2];
- vv[0].i = face;
- vv[1].i = mode;
- list_push ("glColorMaterial", (list_fn_cb) &jwzgles_glColorMaterial,
- PROTO_II, vv);
- }
- else
- {
- /* No real analog to this distinction in OpenGLES, since color
- arrays don't distinguish between "color" and "material", */
- Assert (0, "glColorMaterial: unimplemented mode");
- }
-#endif
-}
-
-
-
-
-void
-jwzgles_glVertex4fv (const GLfloat *v)
-{
- vert_set *s = &state->set;
- int count = s->count;
-
- Assert (state->compiling_verts, "glVertex4fv not inside glBegin");
-
- LOG5("%s rec glVertex4f %7.3f %7.3f %7.3f %7.3f",
- (state->compiling_list || state->replaying_list ? " " : ""),
- v[0], v[1], v[2], v[3]);
-
- if (count >= s->size - 1)
- {
- int new_size = 20 + (s->size * 1.2);
-
- /* 4 arrays, different element sizes...
- We allocate all 4 arrays just in case we need them,
- but we might not end up using them all at the end.
- */
-
- s->verts = (XYZW *) realloc (s->verts, new_size * sizeof (*s->verts));
- Assert (s->verts, "out of memory");
-
- s->norms = (XYZ *) realloc (s->norms, new_size * sizeof (*s->norms));
- Assert (s->norms, "out of memory");
-
- s->tex = (STRQ *) realloc (s->tex, new_size * sizeof (*s->tex));
- Assert (s->tex, "out of memory");
-
- s->color = (RGBA *) realloc (s->color, new_size * sizeof (*s->color));
- Assert (s->color, "out of memory");
-
- s->size = new_size;
- }
-
- s->verts [count].x = v[0];
- s->verts [count].y = v[1];
- s->verts [count].z = v[2];
- s->verts [count].w = v[3];
- s->norms [count] = s->cnorm;
- s->tex [count] = s->ctex;
- s->color [count] = s->ccolor;
- s->count++;
-}
-
-
-void
-jwzgles_glVertex4f (GLfloat x, GLfloat y, GLfloat z, GLfloat w)
-{
- GLfloat v[4];
- v[0] = x;
- v[1] = y;
- v[2] = z;
- v[3] = w;
- jwzgles_glVertex4fv (v);
-}
-
-void
-jwzgles_glVertex4i (GLint x, GLint y, GLint z, GLint w)
-{
- jwzgles_glVertex4f (x, y, z, w);
-}
-
-void
-jwzgles_glVertex3f (GLfloat x, GLfloat y, GLfloat z)
-{
- GLfloat v[4];
- v[0] = x;
- v[1] = y;
- v[2] = z;
- v[3] = 1;
- jwzgles_glVertex4fv (v);
-}
-
-void
-jwzgles_glVertex3i (GLint x, GLint y, GLint z)
-{
- jwzgles_glVertex3f (x, y, z);
-}
-
-void
-jwzgles_glVertex3fv (const GLfloat *v)
-{
- jwzgles_glVertex3f (v[0], v[1], v[2]);
-}
-
-void
-jwzgles_glVertex3dv (const GLdouble *v)
-{
- jwzgles_glVertex3f (v[0], v[1], v[2]);
-}
-
-
-void
-jwzgles_glVertex2f (GLfloat x, GLfloat y)
-{
- GLfloat v[3];
- v[0] = x;
- v[1] = y;
- v[2] = 0;
- jwzgles_glVertex3fv (v);
-}
-
-void
-jwzgles_glVertex2dv (const GLdouble *v)
-{
- jwzgles_glVertex2f (v[0], v[1]);
-}
-
-void
-jwzgles_glVertex2fv (const GLfloat *v)
-{
- jwzgles_glVertex2f (v[0], v[1]);
-}
-
-void
-jwzgles_glVertex2i (GLint x, GLint y)
-{
- jwzgles_glVertex2f (x, y);
-}
-
-
-void
-jwzgles_glLightiv (GLenum light, GLenum pname, const GLint *params)
-{
- GLfloat v[4];
- v[0] = params[0];
- v[1] = params[1];
- v[2] = params[2];
- v[3] = params[3];
- jwzgles_glLightfv (light, pname, v);
-}
-
-void
-jwzgles_glLightModeliv (GLenum pname, const GLint *params)
-{
- GLfloat v[4];
- v[0] = params[0];
- v[1] = params[1];
- v[2] = params[2];
- v[3] = params[3];
- jwzgles_glLightModelfv (pname, v);
-}
-
-void
-jwzgles_glFogiv (GLenum pname, const GLint *params)
-{
- GLfloat v[4];
- v[0] = params[0];
- v[1] = params[1];
- v[2] = params[2];
- v[3] = params[3];
- jwzgles_glFogfv (pname, v);
-}
-
-void
-jwzgles_glLighti (GLenum light, GLenum pname, GLint param)
-{
- jwzgles_glLightf (light, pname, param);
-}
-
-void
-jwzgles_glLightModeli (GLenum pname, GLint param)
-{
- jwzgles_glLightModelf (pname, param);
-}
-
-void
-jwzgles_glFogi (GLenum pname, GLint param)
-{
- jwzgles_glFogf (pname, param);
-}
-
-
-void
-jwzgles_glRotated (GLdouble angle, GLdouble x, GLdouble y, GLdouble z)
-{
- jwzgles_glRotatef (angle, x, y, z);
-}
-
-
-void
-jwzgles_glClipPlane (GLenum plane, const GLdouble *equation)
-{
- Assert (state->compiling_verts, "glClipPlane not inside glBegin");
- Assert (0, "glClipPlane unimplemented"); /* no GLES equivalent... */
-}
-
-
-void
-jwzgles_glPolygonMode (GLenum face, GLenum mode)
-{
- Assert (!state->compiling_verts, "not inside glBegin");
- if (state->compiling_list)
- {
- void_int vv[2];
- vv[0].i = face;
- vv[1].i = mode;
- list_push ("glPolygonMode", (list_fn_cb) &jwzgles_glPolygonMode,
- PROTO_II, vv);
- }
- else
- {
- /* POINT and LINE don't exist in GLES */
- Assert (mode == GL_FILL, "glPolygonMode: unimplemented mode");
- }
-}
-
-
-void
-jwzgles_glDrawBuffer (GLenum buf)
-{
- Assert (!state->compiling_verts, "not inside glBegin");
- if (state->compiling_list)
- {
- void_int vv[1];
- vv[0].i = buf;
- list_push ("glDrawBuffer", (list_fn_cb) &jwzgles_glDrawBuffer,
- PROTO_I, vv);
- }
- else
- {
-/* Assert (buf == GL_BACK, "glDrawBuffer: back buffer only"); */
-# ifndef GL_VERSION_ES_CM_1_0 /* not compiling against OpenGLES 1.x */
- if (! state->replaying_list)
- LOG1 ("direct %-12s", "glDrawBuffer");
- glDrawBuffer (buf); /* the real one */
- CHECK("glDrawBuffer");
-# endif
- }
-}
-
-
-/* Given an array of sets of 4 elements of arbitrary size, convert it
- to an array of sets of 6 elements instead: ABCD becomes ABC BCD.
- */
-static int
-cq2t (unsigned char **arrayP, int stride, int count)
-{
- int count2 = count * 6 / 4;
- int size = stride * count;
- int size2 = stride * count2;
- const unsigned char *oarray, *in;
- unsigned char *array2, *oarray2, *out;
- int i;
-
- oarray = *arrayP;
- if (!oarray || count == 0)
- return count2;
-
- array2 = (unsigned char *) malloc (size2);
- Assert (array2, "out of memory");
- oarray2 = array2;
-
- in = oarray;
- out = oarray2;
- for (i = 0; i < count / 4; i++)
- {
- const unsigned char *a, *b, *c, *d; /* the 4 corners */
- a = in; in += stride;
- b = in; in += stride;
- c = in; in += stride;
- d = in; in += stride;
-
-# define PUSH(IN) do { \
- const unsigned char *ii = IN; \
- int j; \
- for (j = 0; j < stride; j++) { \
- *out++ = *ii++; \
- }} while(0)
-
- PUSH (a); PUSH (b); PUSH (d); /* the 2 triangles */
- PUSH (b); PUSH (c); PUSH (d);
-# undef PUSH
- }
-
- Assert (in == oarray + size, "convert_quads corrupted");
- Assert (out == oarray2 + size2, "convert_quads corrupted");
-
- free (*arrayP);
- *arrayP = oarray2;
- return count2;
-}
-
-
-/* Convert all coordinates in a GL_QUADS vert_set to GL_TRIANGLES.
- */
-static void
-convert_quads_to_triangles (vert_set *s)
-{
- int count2;
- Assert (s->mode == GL_QUADS, "convert_quads bad mode");
- count2 =
- cq2t ((unsigned char **) &s->verts, sizeof(*s->verts), s->count);
- cq2t ((unsigned char **) &s->norms, sizeof(*s->norms), s->count);
- cq2t ((unsigned char **) &s->tex, sizeof(*s->tex), s->count);
- cq2t ((unsigned char **) &s->color, sizeof(*s->color), s->count);
- s->count = count2;
- s->size = count2;
- s->mode = GL_TRIANGLES;
-}
-
-
-void
-jwzgles_glEnd (void)
-{
- vert_set *s = &state->set;
- int was_norm, was_tex, was_color, was_mat;
- int is_norm, is_tex, is_color, is_mat;
-
- Assert (state->compiling_verts == 1, "missing glBegin");
- state->compiling_verts--;
-
- Assert (!state->replaying_list, "how did glEnd get into a display list?");
-
- if (!state->replaying_list)
- {
- LOG5 ("%s [V = %d, N = %d, T = %d, C = %d]",
- (state->compiling_list || state->replaying_list ? " " : ""),
- s->count, s->ncount, s->tcount, s->ccount);
- LOG1 ("%sglEnd",
- (state->compiling_list || state->replaying_list ? " " : ""));
- }
-
- if (s->count == 0) return;
-
- if (s->mode == GL_QUADS)
- convert_quads_to_triangles (s);
- else if (s->mode == GL_QUAD_STRIP)
- s->mode = GL_TRIANGLE_STRIP; /* They do the same thing! */
- else if (s->mode == GL_POLYGON)
- s->mode = GL_TRIANGLE_FAN; /* They do the same thing! */
-
- jwzgles_glColorPointer (4,GL_FLOAT, sizeof(*s->color),s->color); /* RGBA */
- jwzgles_glNormalPointer ( GL_FLOAT, sizeof(*s->norms),s->norms); /* XYZ */
- jwzgles_glTexCoordPointer(4,GL_FLOAT, sizeof(*s->tex), s->tex); /* STRQ */
- jwzgles_glVertexPointer (4,GL_FLOAT, sizeof(*s->verts),s->verts); /* XYZW */
- /* glVertexPointer must come after glTexCoordPointer */
-
- /* If there were no calls to glNormal3f inside of glBegin/glEnd,
- don't bother enabling the normals array.
-
- If there was exactly *one* call to glNormal3f inside of glBegin/glEnd,
- and it was before the first glVertex3f, then also don't enable the
- normals array, but do emit that call to glNormal3f before calling
- glDrawArrays.
-
- Likewise for texture coordinates and colors.
-
- Be careful to leave the arrays' enabled/disabled state the same as
- before, or a later caller might end up using one of our arrays by
- mistake. (Remember that jwzgles_glIsEnabled() tracks the enablement
- of the list-in-progress as well as the global state.)
- */
- was_norm = jwzgles_glIsEnabled (GL_NORMAL_ARRAY);
- was_tex = jwzgles_glIsEnabled (GL_TEXTURE_COORD_ARRAY);
- was_color = jwzgles_glIsEnabled (GL_COLOR_ARRAY);
- was_mat = jwzgles_glIsEnabled (GL_COLOR_MATERIAL);
-
- /* If we're executing glEnd in immediate mode, not from inside a display
- list (which is the only way it happens, because glEnd doesn't go into
- display lists), make sure we're not stomping on a saved buffer list:
- in immediate mode, vertexes are client-side only.
- */
- if (! state->compiling_list)
- jwzgles_glBindBuffer (GL_ARRAY_BUFFER, 0);
-
- if (s->ncount > 1)
- {
- is_norm = 1;
- jwzgles_glEnableClientState (GL_NORMAL_ARRAY);
- }
- else
- {
- is_norm = 0;
- if (s->ncount == 1)
- jwzgles_glNormal3f (s->cnorm.x, s->cnorm.y, s->cnorm.z);
- jwzgles_glDisableClientState (GL_NORMAL_ARRAY);
- }
-
- if (s->tcount > 1 ||
- ((state->compiling_list ? state->list_enabled : state->enabled)
- & (ISENABLED_TEXTURE_GEN_S | ISENABLED_TEXTURE_GEN_T |
- ISENABLED_TEXTURE_GEN_R | ISENABLED_TEXTURE_GEN_Q)))
- {
- /* Enable texture coords if any were specified; or if generation
- is on in immediate mode; or if this list turned on generation. */
- is_tex = 1;
- jwzgles_glEnableClientState (GL_TEXTURE_COORD_ARRAY);
- }
- else
- {
- is_tex = 0;
- if (s->tcount == 1)
- jwzgles_glTexCoord4f (s->ctex.s, s->ctex.t, s->ctex.r, s->ctex.q);
- jwzgles_glDisableClientState (GL_TEXTURE_COORD_ARRAY);
- }
-
- if (s->ccount > 1)
- {
- is_color = 1;
- jwzgles_glEnableClientState (GL_COLOR_ARRAY);
- }
- else
- {
- is_color = 0;
- if (s->ccount == 1)
- jwzgles_glColor4f (s->ccolor.r, s->ccolor.g, s->ccolor.b, s->ccolor.a);
- jwzgles_glDisableClientState (GL_COLOR_ARRAY);
- }
-
- jwzgles_glEnableClientState (GL_VERTEX_ARRAY);
-
- /* We translated the glMaterial calls to per-vertex colors, which are
- of the glColor sort, not the glMaterial sort, so automatically
- turn on material mapping. Maybe this is a bad idea.
- */
- if (s->materialistic && !jwzgles_glIsEnabled (GL_COLOR_MATERIAL))
- {
- is_mat = 1;
- jwzgles_glEnable (GL_COLOR_MATERIAL);
- }
- else
- is_mat = 0;
-
- glBindBuffer (GL_ARRAY_BUFFER, 0); /* This comes later. */
- jwzgles_glDrawArrays (s->mode, 0, s->count);
- glBindBuffer (GL_ARRAY_BUFFER, 0); /* Keep out of others' hands */
-
-# define RESET(VAR,FN,ARG) do { \
- if (is_##VAR != was_##VAR) { \
- if (was_##VAR) jwzgles_glEnable##FN (ARG); \
- else jwzgles_glDisable##FN (ARG); \
- }} while(0)
- RESET (norm, ClientState, GL_NORMAL_ARRAY);
- RESET (tex, ClientState, GL_TEXTURE_COORD_ARRAY);
- RESET (color, ClientState, GL_COLOR_ARRAY);
- RESET (mat, , GL_COLOR_MATERIAL);
-# undef RESET
-
- s->count = 0;
- s->ncount = 0;
- s->tcount = 0;
- s->ccount = 0;
- s->materialistic = 0;
-}
-
-
-/* The display list is full of calls to glDrawArrays(), plus saved arrays
- of the values we need to restore before calling it. "Restore" means
- "ship them off to the GPU before each call".
-
- So instead, this function walks through the display list and
- combines all of those vertex, normal, texture and color values into
- a single VBO array; ships those values off to the GPU *once* at the
- time of glEndList; and when running the list with glCallList, the
- values are already on the GPU and don't need to be sent over again.
-
- The VBO persists in the GPU until the display list is deleted.
- */
-static void
-optimize_arrays (void)
-{
- list *L = &state->lists.lists[state->compiling_list-1];
- int i, j;
- GLfloat *combo = 0;
- int combo_count = 0;
- int combo_size = 0;
- GLuint buf_name = 0;
-
- Assert (state->compiling_list, "not compiling a list");
- Assert (L, "no list");
- Assert (!L->buffer, "list already has a buffer");
-
- glGenBuffers (1, &buf_name);
- CHECK("glGenBuffers");
- if (! buf_name) return;
-
- L->buffer = buf_name;
-
- /* Go through the list and dump the contents of the various saved arrays
- into one large array.
- */
- for (i = 0; i < L->count; i++)
- {
- list_fn *F = &L->fns[i];
-/* int count; */
- if (! F->arrays)
- continue;
-/* count = F->argv[2].i;*/ /* 3rd arg to glDrawArrays */
-
- for (j = 0; j < 4; j++)
- {
- draw_array *A = &F->arrays[j];
- int ocount = combo_count;
-
- /* If some caller is using arrays that don't have floats in them,
- we just leave them as-is and ship them over at each call.
- Doubt this ever really happens.
- */
- if (A->type != GL_FLOAT)
- continue;
-
- if (! A->data) /* No array. */
- continue;
-
- Assert (A->bytes > 0, "no bytes in draw_array");
- Assert (((unsigned long) A->data > 0xFFFF),
- "buffer data not a pointer");
-
- combo_count += A->bytes / sizeof(*combo);
- make_room ("optimize_arrays",
- (void **) &combo, sizeof(*combo),
- &combo_count, &combo_size);
- memcpy (combo + ocount, A->data, A->bytes);
- A->binding = buf_name;
- free (A->data);
- /* 'data' is now the byte offset into the VBO. */
- A->data = (void *) (ocount * sizeof(*combo));
- /* LOG3(" loaded %lu floats to pos %d of buffer %d",
- A->bytes / sizeof(*combo), ocount, buf_name); */
- }
- }
-
- if (combo_count == 0) /* Nothing to do! */
- {
- if (combo) free (combo);
- glDeleteBuffers (1, &buf_name);
- L->buffer = 0;
- return;
- }
-
- glBindBuffer (GL_ARRAY_BUFFER, buf_name);
- glBufferData (GL_ARRAY_BUFFER,
- combo_count * sizeof (*combo),
- combo,
- GL_STATIC_DRAW);
- glBindBuffer (GL_ARRAY_BUFFER, 0); /* Keep out of others' hands */
-
- LOG3(" loaded %d floats of list %d into VBO %d",
- combo_count, state->compiling_list, buf_name);
-
-# ifdef DEBUG
-# if 0
- for (i = 0; i < combo_count; i++)
- {
- if (i % 4 == 0)
- fprintf (stderr, "\njwzgles: %4d: ", i);
- fprintf (stderr, " %7.3f", combo[i]);
- }
- fprintf (stderr, "\n");
-# endif
-# endif /* DEBUG */
-
- if (combo) free (combo);
-}
-
-
-void
-jwzgles_glCallList (int id)
-{
- if (state->compiling_list)
- {
- /* Yes, you can call lists inside of lists.
- Yes, recursion would be a mistake. */
- void_int vv[1];
- vv[0].i = id;
- list_push ("glCallList", (list_fn_cb) &jwzgles_glCallList, PROTO_I, vv);
- }
- else
- {
- list *L;
- int i;
-
- state->replaying_list++;
-
-# ifdef DEBUG
- fprintf (stderr, "\n");
- LOG1 ("glCallList %d", id);
-# endif
-
- Assert (id > 0 && id <= state->lists.count, "glCallList: bogus ID");
- L = &state->lists.lists[id-1];
- Assert (id == L->id, "glCallList corrupted");
-
- for (i = 0; i < L->count; i++)
- {
- list_fn *F = &L->fns[i];
- list_fn_cb fn = F->fn;
- void_int *av = F->argv;
-
- switch (F->proto) {
- case PROTO_VOID:
- LOG1 (" call %-12s", F->name);
- ((void (*) (void)) fn) ();
- break;
-
- case PROTO_I:
- if (fn == (list_fn_cb) &jwzgles_glBegin ||
- fn == (list_fn_cb) &jwzgles_glFrontFace ||
- fn == (list_fn_cb) &jwzgles_glEnable ||
- fn == (list_fn_cb) &jwzgles_glDisable ||
- fn == (list_fn_cb) &jwzgles_glEnableClientState ||
- fn == (list_fn_cb) &jwzgles_glDisableClientState ||
- fn == (list_fn_cb) &jwzgles_glShadeModel ||
- fn == (list_fn_cb) &jwzgles_glMatrixMode)
- LOG2 (" call %-12s %s", F->name, mode_desc (av[0].i));
- else
- LOG2 (" call %-12s %d", F->name, av[0].i);
- ((void (*) (int)) fn) (av[0].i);
- break;
-
- case PROTO_F:
- LOG2 (" call %-12s %7.3f", F->name, av[0].f);
- ((void (*) (GLfloat)) fn) (av[0].f);
- break;
-
- case PROTO_II:
- if (fn == (list_fn_cb) &jwzgles_glBindTexture ||
- fn == (list_fn_cb) &jwzgles_glBindBuffer)
- LOG3 (" call %-12s %s %d", F->name,
- mode_desc (av[0].i), av[1].i);
- else
- LOG3 (" call %-12s %d %d", F->name, av[0].i, av[1].i);
- ((void (*) (int, int)) fn) (av[0].i, av[1].i);
- break;
-
- case PROTO_FF:
- LOG3 (" call %-12s %7.3f %7.3f", F->name, av[0].f, av[1].f);
- ((void (*) (GLfloat, GLfloat)) fn) (av[0].f, av[1].f);
- break;
-
- case PROTO_IF:
- LOG3 (" call %-12s %s %7.3f", F->name,
- mode_desc (av[0].f), av[1].f);
- ((void (*) (GLint, GLfloat)) fn) (av[0].i, av[1].f);
- break;
-
- case PROTO_III: III:
- if (fn == (list_fn_cb) &jwzgles_glDrawArrays ||
- fn == (list_fn_cb) &jwzgles_glTexParameteri)
- LOG4 (" call %-12s %s %d %d", F->name,
- mode_desc (av[0].i), av[1].i, av[2].i);
- else
- LOG4 (" call %-12s %d %d %d", F->name,
- av[0].i, av[1].i, av[2].i);
- ((void (*) (int, int, int)) fn) (av[0].i, av[1].i, av[2].i);
- break;
-
- case PROTO_FFF:
- LOG4 (" call %-12s %7.3f %7.3f %7.3f", F->name,
- av[0].f, av[1].f, av[2].f);
- ((void (*) (GLfloat, GLfloat, GLfloat)) fn)
- (av[0].f, av[1].f, av[2].f);
- break;
-
- case PROTO_IIF:
- LOG4 (" call %-12s %s %s %7.3f", F->name,
- mode_desc (av[0].i), mode_desc (av[1].i), av[2].f);
- ((void (*) (int, int, GLfloat)) fn) (av[0].i, av[1].i, av[2].f);
- break;
-
- case PROTO_IIII:
- LOG5 (" call %-12s %d %d %d %d", F->name,
- av[0].i, av[1].i, av[2].i, av[3].i);
- ((void (*) (int, int, int, int)) fn)
- (av[0].i, av[1].i, av[2].i, av[3].i);
- break;
-
- case PROTO_FFFF:
- LOG5 (" call %-12s %7.3f %7.3f %7.3f %7.3f", F->name,
- av[0].f, av[1].f, av[2].f, av[3].f);
- ((void (*) (GLfloat, GLfloat, GLfloat, GLfloat)) fn)
- (av[0].f, av[1].f, av[2].f, av[3].f);
- break;
-
- case PROTO_IFV:
- {
- GLfloat v[4];
- v[0] = av[1].f;
- v[1] = av[2].f;
- v[2] = av[3].f;
- v[3] = av[4].f;
- LOG6 (" call %-12s %s %3.1f %3.1f %3.1f %3.1f", F->name,
- mode_desc (av[0].i),
- av[1].f, av[2].f, av[3].f, av[4].f);
- ((void (*) (int, const GLfloat *)) fn) (av[0].i, v);
- }
- break;
-
- case PROTO_IIFV:
- {
- GLfloat v[4];
- v[0] = av[2].f;
- v[1] = av[3].f;
- v[2] = av[4].f;
- v[3] = av[5].f;
- LOG7 (" call %-12s %s %-8s %3.1f %3.1f %3.1f %3.1f", F->name,
- mode_desc (av[0].i), mode_desc (av[1].i),
- av[2].f, av[3].f, av[4].f, av[5].f);
- ((void (*) (int, int, const GLfloat *)) fn)
- (av[0].i, av[1].i, v);
- }
- break;
-
- case PROTO_IIV:
- {
- int v[4];
- v[0] = av[1].i;
- v[1] = av[2].i;
- v[2] = av[3].i;
- v[3] = av[4].i;
- LOG6 (" call %-12s %s %3d %3d %3d %3d", F->name,
- mode_desc (av[0].i),
- av[1].i, av[2].i, av[3].i, av[4].i);
- ((void (*) (int, const int *)) fn) (av[0].i, v);
- }
- break;
-
- case PROTO_IIIV:
- {
- int v[4];
- v[0] = av[2].i;
- v[1] = av[3].i;
- v[2] = av[4].i;
- v[3] = av[5].i;
- LOG7 (" call %-12s %s %-8s %3d %3d %3d %3d", F->name,
- mode_desc (av[0].i), mode_desc (av[1].i),
- av[2].i, av[3].i, av[4].i, av[5].i);
- ((void (*) (int, int, const int *)) fn)
- (av[0].i, av[1].i, v);
- }
- break;
-
- case PROTO_ARRAYS:
- restore_arrays (F, av[1].i + av[2].i);
- goto III;
- break;
-
- case PROTO_FV16:
- {
- GLfloat m[16];
- int i;
- for (i = 0; i < countof(m); i++)
- m[i] = av[i].f;
- LOG17 (" call %-12s ["
- "%8.3f %8.3f %8.3f %8.3f " "\n\t\t\t "
- "%8.3f %8.3f %8.3f %8.3f " "\n\t\t\t "
- "%8.3f %8.3f %8.3f %8.3f " "\n\t\t\t "
- "%8.3f %8.3f %8.3f %8.3f ]",
- F->name,
- m[0], m[1], m[2], m[3],
- m[4], m[5], m[6], m[7],
- m[8], m[9], m[10], m[11],
- m[12], m[13], m[14], m[15]);
- ((void (*) (GLfloat *)) fn) (m);
- }
- break;
-
- default:
- Assert (0, "bogus prototype");
- break;
- }
- }
-
- LOG1 ("glCallList %d done\n", id);
-
- state->replaying_list--;
- Assert (state->replaying_list >= 0, "glCallList corrupted");
- }
-}
-
-
-/* When we save a call to glDrawArrays into a display list, we also need to
- save the prevailing copy of the arrays that it will use, and restore them
- later.
- */
-static void
-save_arrays (list_fn *F, int count)
-{
- int i = 0;
- draw_array *A = (draw_array *) calloc (4, sizeof (*A));
- Assert (A, "out of memory");
-
-/* if (state->set.count > 0) */
- {
- glGetIntegerv (GL_VERTEX_ARRAY_BUFFER_BINDING, &A[i].binding);
- glGetIntegerv (GL_VERTEX_ARRAY_SIZE, &A[i].size);
- glGetIntegerv (GL_VERTEX_ARRAY_TYPE, &A[i].type);
- glGetIntegerv (GL_VERTEX_ARRAY_STRIDE, &A[i].stride);
- glGetPointerv (GL_VERTEX_ARRAY_POINTER, &A[i].data);
- CHECK("glGetPointerv");
- copy_array_data (&A[i], count, "vert");
- }
-
- i++;
- if (state->set.ncount > 1)
- {
- A[i].size = 3;
- glGetIntegerv (GL_NORMAL_ARRAY_BUFFER_BINDING, &A[i].binding);
- glGetIntegerv (GL_NORMAL_ARRAY_TYPE, &A[i].type);
- glGetIntegerv (GL_NORMAL_ARRAY_STRIDE, &A[i].stride);
- glGetPointerv (GL_NORMAL_ARRAY_POINTER, &A[i].data);
- CHECK("glGetPointerv");
- copy_array_data (&A[i], count, "norm");
- }
-
- i++;
- if (state->set.tcount > 1)
- {
- glGetIntegerv (GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING, &A[i].binding);
- glGetIntegerv (GL_TEXTURE_COORD_ARRAY_SIZE, &A[i].size);
- glGetIntegerv (GL_TEXTURE_COORD_ARRAY_TYPE, &A[i].type);
- glGetIntegerv (GL_TEXTURE_COORD_ARRAY_STRIDE, &A[i].stride);
- glGetPointerv (GL_TEXTURE_COORD_ARRAY_POINTER, &A[i].data);
- CHECK("glGetPointerv");
- copy_array_data (&A[i], count, "tex ");
- }
-
- i++;
- if (state->set.ccount > 1)
- {
- glGetIntegerv (GL_COLOR_ARRAY_BUFFER_BINDING, &A[i].binding);
- glGetIntegerv (GL_COLOR_ARRAY_SIZE, &A[i].size);
- glGetIntegerv (GL_COLOR_ARRAY_TYPE, &A[i].type);
- glGetIntegerv (GL_COLOR_ARRAY_STRIDE, &A[i].stride);
- glGetPointerv (GL_COLOR_ARRAY_POINTER, &A[i].data);
- CHECK("glGetPointerv");
- copy_array_data (&A[i], count, "col ");
- }
-
- /* Freed by glDeleteLists. */
-
- Assert (!F->arrays, "save_arrays corrupted");
- F->arrays = A;
-}
-
-
-#ifdef DEBUG
-
-static void
-dump_array_data (draw_array *A, int count,
- const char *action, const char *name, const void *old)
-{
- int bytes = count * A->stride;
-
- if (A->binding)
- {
- fprintf (stderr,
- "jwzgles: %s %s %d %s %2d, %4d = %5d bind %d @ %d\n",
- action, name,
- A->size, mode_desc(A->type), A->stride,
- count, bytes, A->binding, (int) A->data);
- }
- else
- {
- Assert (bytes == A->bytes, "array data corrupted");
-
- fprintf (stderr, "jwzgles: %s %s %d %s %2d, %4d = %5d @ %lX",
- action, name,
- A->size, mode_desc(A->type), A->stride,
- count, bytes, (unsigned long) A->data);
- if (old)
- fprintf (stderr, " / %lX", (unsigned long) old);
- fprintf (stderr, "\n");
- }
-
- if (A->binding)
- {
- Assert (((unsigned long) A->data < 0xFFFF),
- "buffer binding should be a numeric index,"
- " but looks like a pointer");
-
-# if 0
- /* glGetBufferSubData doesn't actually exist in OpenGLES, but this
- was helpful for debugging on real OpenGL... */
- GLfloat *d;
- int i;
- fprintf (stderr, "jwzgles: read back:\n");
- d = (GLfloat *) malloc (A->bytes);
- glGetBufferSubData (GL_ARRAY_BUFFER, (int) A->data,
- count * A->stride, (void *) d);
- CHECK("glGetBufferSubData");
- for (i = 0; i < count * A->size; i++)
- {
- if (i % 4 == 0)
- fprintf (stderr, "\njwzgles: %4d: ",
- i + (int) A->data / sizeof(GLfloat));
- fprintf (stderr, " %7.3f", d[i]);
- }
- fprintf (stderr, "\n");
- free (d);
-# endif
- }
-# if 0
- else
- {
- unsigned char *b = (unsigned char *) A->data;
- int i;
- if ((unsigned long) A->data < 0xFFFF)
- {
- Assert (0, "buffer data not a pointer");
- return;
- }
- for (i = 0; i < count; i++)
- {
- int j;
- GLfloat *f = (GLfloat *) b;
- int s = A->size;
- if (s == 0) s = 3; /* normals */
- fprintf (stderr, "jwzgles: ");
- for (j = 0; j < s; j++)
- fprintf (stderr, " %7.3f", f[j]);
- fprintf (stderr, "\n");
- b += A->stride;
- }
- }
-# endif
-}
-
-static void
-dump_direct_array_data (int count)
-{
- draw_array A = { 0, };
-
- if (jwzgles_glIsEnabled (GL_VERTEX_ARRAY))
- {
- glGetIntegerv (GL_VERTEX_ARRAY_BUFFER_BINDING, &A.binding);
- glGetIntegerv (GL_VERTEX_ARRAY_SIZE, &A.size);
- glGetIntegerv (GL_VERTEX_ARRAY_TYPE, &A.type);
- glGetIntegerv (GL_VERTEX_ARRAY_STRIDE, &A.stride);
- glGetPointerv (GL_VERTEX_ARRAY_POINTER, &A.data);
- A.bytes = count * A.stride;
- dump_array_data (&A, count, "direct", "vertex ", 0);
- }
- if (jwzgles_glIsEnabled (GL_NORMAL_ARRAY))
- {
- A.size = 0;
- glGetIntegerv (GL_NORMAL_ARRAY_BUFFER_BINDING, &A.binding);
- glGetIntegerv (GL_NORMAL_ARRAY_TYPE, &A.type);
- glGetIntegerv (GL_NORMAL_ARRAY_STRIDE, &A.stride);
- glGetPointerv (GL_NORMAL_ARRAY_POINTER, &A.data);
- A.bytes = count * A.stride;
- dump_array_data (&A, count, "direct", "normal ", 0);
- }
- if (jwzgles_glIsEnabled (GL_TEXTURE_COORD_ARRAY))
- {
- glGetIntegerv (GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING, &A.binding);
- glGetIntegerv (GL_TEXTURE_COORD_ARRAY_SIZE, &A.size);
- glGetIntegerv (GL_TEXTURE_COORD_ARRAY_TYPE, &A.type);
- glGetIntegerv (GL_TEXTURE_COORD_ARRAY_STRIDE, &A.stride);
- glGetPointerv (GL_TEXTURE_COORD_ARRAY_POINTER, &A.data);
- A.bytes = count * A.stride;
- dump_array_data (&A, count, "direct", "texture", 0);
- }
- if (jwzgles_glIsEnabled (GL_COLOR_ARRAY))
- {
- glGetIntegerv (GL_COLOR_ARRAY_BUFFER_BINDING, &A.binding);
- glGetIntegerv (GL_COLOR_ARRAY_SIZE, &A.size);
- glGetIntegerv (GL_COLOR_ARRAY_TYPE, &A.type);
- glGetIntegerv (GL_COLOR_ARRAY_STRIDE, &A.stride);
- glGetPointerv (GL_COLOR_ARRAY_POINTER, &A.data);
- A.bytes = count * A.stride;
- dump_array_data (&A, count, "direct", "color ", 0);
- }
-}
-
-#endif /* DEBUG */
-
-
-static void
-copy_array_data (draw_array *A, int count, const char *name)
-{
- /* Instead of just memcopy'ing the whole array and obeying its previous
- 'stride' value, we make up a more compact array. This is because if
- the same array data is being used with multiple component types,
- e.g. with glInterleavedArrays, we don't want to copy all of the
- data multiple times.
- */
- int stride2, bytes, i, j;
- void *data2;
- const GLfloat *IF;
- GLfloat *OF;
- const unsigned char *IB;
- unsigned char *OB;
-
- if (((unsigned long) A->data) < 0xFFFF)
- {
- Assert (0, "buffer data not a pointer");
- return;
- }
-
- Assert (A->size >= 2 && A->size <= 4, "bogus array size");
-
- switch (A->type) {
- case GL_FLOAT: stride2 = A->size * sizeof(GLfloat); break;
- case GL_UNSIGNED_BYTE: stride2 = A->size; break;
- default: Assert (0, "bogus array type"); break;
- }
-
- bytes = count * stride2;
- Assert (bytes > 0, "bogus array count or stride");
- Assert (A->data, "missing array data");
- data2 = (void *) malloc (bytes);
- Assert (data2, "out of memory");
-
- IB = (const unsigned char *) A->data;
- OB = (unsigned char *) data2;
- IF = (const GLfloat *) A->data;
- OF = (GLfloat *) data2;
-
- switch (A->type) {
- case GL_FLOAT:
- for (i = 0; i < count; i++)
- {
- for (j = 0; j < A->size; j++)
- *OF++ = IF[j];
- IF = (const GLfloat *) (((const unsigned char *) IF) + A->stride);
- }
- break;
- case GL_UNSIGNED_BYTE:
- for (i = 0; i < count; i++)
- {
- for (j = 0; j < A->size; j++)
- *OB++ = IB[j];
- IB += A->stride;
- }
- break;
- default:
- Assert (0, "bogus array type");
- break;
- }
-
- A->data = data2;
- A->bytes = bytes;
- A->stride = stride2;
-
-# ifdef DEBUG
- dump_array_data (A, count, "saved", name, 0);
-# endif
-}
-
-
-static void
-restore_arrays (list_fn *F, int count)
-{
- int i = 0;
- draw_array *A = F->arrays;
- Assert (A, "missing array");
-
- for (i = 0; i < 4; i++)
- {
- const char *name = 0;
-
- if (!A[i].size)
- continue;
-
- Assert ((A[i].binding || A[i].data),
- "array has neither buffer binding nor data");
-
- glBindBuffer (GL_ARRAY_BUFFER, A[i].binding);
- CHECK("glBindBuffer");
-
- switch (i) {
- case 0: glVertexPointer (A[i].size, A[i].type, A[i].stride, A[i].data);
- name = "vertex ";
- CHECK("glVertexPointer");
- break;
- case 1: glNormalPointer ( A[i].type, A[i].stride, A[i].data);
- name = "normal ";
- CHECK("glNormalPointer");
- break;
- case 2: glTexCoordPointer(A[i].size, A[i].type, A[i].stride, A[i].data);
- name = "texture";
- CHECK("glTexCoordPointer");
- break;
- case 3: glColorPointer (A[i].size, A[i].type, A[i].stride, A[i].data);
- name = "color ";
- CHECK("glColorPointer");
- break;
- default: Assert (0, "wat"); break;
- }
-
-# ifdef DEBUG
- dump_array_data (&A[i], count, "restored", name, 0);
-# endif
- }
-
- glBindBuffer (GL_ARRAY_BUFFER, 0); /* Keep out of others' hands */
-}
-
-
-void
-jwzgles_glDrawArrays (GLuint mode, GLuint first, GLuint count)
-{
- /* If we are auto-generating texture coordinates, do that now, after
- the vertex array was installed, but before drawing, This happens
- when recording into a list, or in direct mode. It must happen
- before calling optimize_arrays() from glEndList().
- */
- if (! state->replaying_list &&
- ((state->compiling_list ? state->list_enabled : state->enabled)
- & (ISENABLED_TEXTURE_GEN_S | ISENABLED_TEXTURE_GEN_T |
- ISENABLED_TEXTURE_GEN_R | ISENABLED_TEXTURE_GEN_Q)))
- generate_texture_coords (first, count);
-
- if (state->compiling_list)
- {
- void_int vv[3];
- vv[0].i = mode;
- vv[1].i = first;
- vv[2].i = count;
- list_push ("glDrawArrays", (list_fn_cb) &jwzgles_glDrawArrays,
- PROTO_ARRAYS, vv);
- }
- else
- {
-# ifdef DEBUG
- if (! state->replaying_list) {
- LOG4("direct %-12s %d %d %d", "glDrawArrays", mode, first, count);
- dump_direct_array_data (first + count);
- }
-# endif
- glDrawArrays (mode, first, count); /* the real one */
- CHECK("glDrawArrays");
- }
-}
-
-
-void
-jwzgles_glInterleavedArrays (GLenum format, GLsizei stride, const void *data)
-{
- /* We can implement this by calling the various *Pointer functions
- with offsets into the same data, taking advantage of stride.
- */
- const unsigned char *c = (const unsigned char *) data;
-# define B 1
-# define F sizeof(GLfloat)
-
- Assert (!state->compiling_verts,
- "glInterleavedArrays not allowed inside glBegin");
-
- jwzgles_glEnableClientState (GL_VERTEX_ARRAY);
-
- if (!state->replaying_list)
- LOG4 ("%sglInterleavedArrays %s %d %lX",
- (state->compiling_list || state->replaying_list ? " " : ""),
- mode_desc (format), stride, (unsigned long) data);
-
- switch (format) {
- case GL_V2F:
- glVertexPointer (2, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- if (!state->replaying_list)
- LOG3 ("%s -> glVertexPointer 2 FLOAT %d %lX",
- (state->compiling_list || state->replaying_list ? " " : ""),
- stride, (unsigned long) c);
- break;
- case GL_V3F:
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- if (!state->replaying_list)
- LOG3 ("%s -> glVertexPointer 3 FLOAT %d %lX",
- (state->compiling_list || state->replaying_list ? " " : ""),
- stride, (unsigned long) c);
- break;
- case GL_C4UB_V2F:
- if (stride == 0)
- stride = 4*B + 2*F;
- jwzgles_glEnableClientState (GL_COLOR_ARRAY);
- glColorPointer (4, GL_UNSIGNED_BYTE, stride, c);
- CHECK("glColorPointer");
- c += 4*B; /* #### might be incorrect float-aligned address */
- glVertexPointer (2, GL_FLOAT, stride, c);
- break;
- case GL_C4UB_V3F:
- if (stride == 0)
- stride = 4*B + 3*F;
- jwzgles_glEnableClientState (GL_COLOR_ARRAY);
- glColorPointer (4, GL_UNSIGNED_BYTE, stride, c);
- CHECK("glColorPointer");
- c += 4*B;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- case GL_C3F_V3F:
- if (stride == 0)
- stride = 3*F + 3*F;
- jwzgles_glEnableClientState (GL_COLOR_ARRAY);
- glColorPointer (3, GL_FLOAT, stride, c);
- CHECK("glColorPointer");
- c += 3*F;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- case GL_N3F_V3F:
- if (stride == 0)
- stride = 3*F + 3*F;
- jwzgles_glEnableClientState (GL_NORMAL_ARRAY);
- glNormalPointer (GL_FLOAT, stride, c);
- CHECK("glNormalPointer");
- if (!state->replaying_list)
- LOG3 ("%s -> glNormalPointer FLOAT %d %lX",
- (state->compiling_list || state->replaying_list ? " " : ""),
- stride, (unsigned long) c);
- c += 3*F;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- if (!state->replaying_list)
- LOG3 ("%s -> glVertexPointer 3 FLOAT %d %lX",
- (state->compiling_list || state->replaying_list ? " " : ""),
- stride, (unsigned long) c);
- break;
- case GL_C4F_N3F_V3F:
- if (stride == 0)
- stride = 4*F + 3*F + 3*F;
- jwzgles_glEnableClientState (GL_COLOR_ARRAY);
- glColorPointer (4, GL_FLOAT, stride, c);
- CHECK("glColorPointer");
- c += 4*F;
- jwzgles_glEnableClientState (GL_NORMAL_ARRAY);
- glNormalPointer (GL_FLOAT, stride, c);
- CHECK("glNormalPointer");
- c += 3*F;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- case GL_T2F_V3F:
- if (stride == 0)
- stride = 2*F + 3*F;
- jwzgles_glEnableClientState (GL_TEXTURE_COORD_ARRAY);
- glTexCoordPointer (2, GL_FLOAT, stride, c);
- CHECK("glTexCoordPointer");
- c += 2*F;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- case GL_T4F_V4F:
- if (stride == 0)
- stride = 4*F + 4*F;
- jwzgles_glEnableClientState (GL_TEXTURE_COORD_ARRAY);
- glTexCoordPointer (4, GL_FLOAT, stride, c);
- CHECK("glTexCoordPointer");
- c += 4*F;
- glVertexPointer (4, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- case GL_T2F_C4UB_V3F:
- if (stride == 0)
- stride = 2*F + 4*B + 3*F;
- jwzgles_glEnableClientState (GL_TEXTURE_COORD_ARRAY);
- glTexCoordPointer (2, GL_FLOAT, stride, c);
- CHECK("glTexCoordPointer");
- c += 2*F;
- jwzgles_glEnableClientState (GL_COLOR_ARRAY);
- glColorPointer (4, GL_UNSIGNED_BYTE, stride, c);
- CHECK("glColorPointer");
- c += 4*B;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- case GL_T2F_C3F_V3F:
- if (stride == 0)
- stride = 2*F + 3*F + 3*F;
- jwzgles_glEnableClientState (GL_TEXTURE_COORD_ARRAY);
- glTexCoordPointer (2, GL_FLOAT, stride, c);
- CHECK("glTexCoordPointer");
- c += 2*F;
- jwzgles_glEnableClientState (GL_COLOR_ARRAY);
- glColorPointer (3, GL_FLOAT, stride, c);
- CHECK("glColorPointer");
- c += 3*F;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- case GL_T2F_N3F_V3F:
- if (stride == 0)
- stride = 2*F + 3*F + 3*F;
- jwzgles_glEnableClientState (GL_TEXTURE_COORD_ARRAY);
- glTexCoordPointer (2, GL_FLOAT, stride, c);
- CHECK("glTexCoordPointer");
- c += 2*F;
- jwzgles_glEnableClientState (GL_NORMAL_ARRAY);
- glNormalPointer (GL_FLOAT, stride, c);
- CHECK("glNormalPointer");
- c += 3*F;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- case GL_T2F_C4F_N3F_V3F:
- if (stride == 0)
- stride = 2*F + 4*F + 3*F + 3*F;
- jwzgles_glEnableClientState (GL_TEXTURE_COORD_ARRAY);
- glTexCoordPointer (2, GL_FLOAT, stride, c);
- CHECK("glTexCoordPointer");
- c += 2*F;
- jwzgles_glEnableClientState (GL_COLOR_ARRAY);
- glColorPointer (3, GL_FLOAT, stride, c);
- CHECK("glColorPointer");
- c += 3*F;
- jwzgles_glEnableClientState (GL_NORMAL_ARRAY);
- glNormalPointer (GL_FLOAT, stride, c);
- CHECK("glNormalPointer");
- c += 3*F;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- case GL_T4F_C4F_N3F_V4F:
- if (stride == 0)
- stride = 4*F + 4*F + 3*F + 4*F;
- jwzgles_glEnableClientState (GL_TEXTURE_COORD_ARRAY);
- glTexCoordPointer (4, GL_FLOAT, stride, c);
- CHECK("glTexCoordPointer");
- c += 4*F;
- jwzgles_glEnableClientState (GL_COLOR_ARRAY);
- glColorPointer (4, GL_FLOAT, stride, c);
- CHECK("glColorPointer");
- c += 4*F;
- jwzgles_glEnableClientState (GL_NORMAL_ARRAY);
- glNormalPointer (GL_FLOAT, stride, c);
- CHECK("glNormalPointer");
- c += 3*F;
- glVertexPointer (3, GL_FLOAT, stride, c);
- CHECK("glVertexPointer");
- break;
- default:
- Assert (0, "glInterleavedArrays: bogus format");
- break;
- }
-
-# undef B
-# undef F
-}
-
-
-
-void
-jwzgles_glMultMatrixf (const GLfloat *m)
-{
- Assert (!state->compiling_verts,
- "glMultMatrixf not allowed inside glBegin");
- if (state->compiling_list)
- {
- void_int vv[16];
- int i;
- for (i = 0; i < countof(vv); i++)
- vv[i].f = m[i];
- list_push ("glMultMatrixf", (list_fn_cb) &jwzgles_glMultMatrixf,
- PROTO_FV16, vv);
- }
- else
- {
- if (! state->replaying_list)
- LOG1 ("direct %-12s", "glMultMatrixf");
- glMultMatrixf (m); /* the real one */
- CHECK("glMultMatrixf");
- }
-}
-
-
-void
-jwzgles_glClearIndex(GLfloat c)
-{
- /* Does GLES even do indexed color? */
- Assert (0, "glClearIndex unimplemented");
-}
-
-
-void
-jwzgles_glBitmap (GLsizei width, GLsizei height, GLfloat xorig, GLfloat yorig,
- GLfloat xmove, GLfloat ymove, const GLubyte *bitmap)
-{
- Assert (0, "glBitmap unimplemented");
-}
-
-void
-jwzgles_glPushAttrib(int flags)
-{
- Assert (0, "glPushAttrib unimplemented");
-}
-
-void
-jwzgles_glPopAttrib(void)
-{
- Assert (0, "glPopAttrib unimplemented");
-}
-
-
-/* These are needed for object hit detection in pinion.
- Might need to rewrite that code entirely. Punt for now.
- */
-void
-jwzgles_glInitNames (void)
-{
-/* Assert (0, "glInitNames unimplemented");*/
-}
-
-void
-jwzgles_glPushName (GLuint name)
-{
-/* Assert (0, "glPushName unimplemented");*/
-}
-
-GLuint
-jwzgles_glPopName (void)
-{
-/* Assert (0, "glPopName unimplemented");*/
- return 0;
-}
-
-GLuint
-jwzgles_glRenderMode (GLuint mode)
-{
-/* Assert (0, "glRenderMode unimplemented");*/
- return 0;
-}
-
-void
-jwzgles_glSelectBuffer (GLsizei size, GLuint *buf)
-{
-/* Assert (0, "glSelectBuffer unimplemented");*/
-}
-
-
-void
-jwzgles_glGenTextures (GLuint n, GLuint *ret)
-{
- Assert (!state->compiling_verts,
- "glGenTextures not allowed inside glBegin");
- /* technically legal, but stupid! */
- Assert (!state->compiling_list,
- "glGenTextures not allowed inside glNewList");
- if (! state->replaying_list)
- LOG1 ("direct %-12s", "glGenTextures");
- glGenTextures (n, ret); /* the real one */
- CHECK("glGenTextures");
-}
-
-
-/* return the next larger power of 2. */
-static int
-to_pow2 (int value)
-{
- int i = 1;
- while (i < value) i <<= 1;
- return i;
-}
-
-void
-jwzgles_glTexImage1D (GLenum target, GLint level,
- GLint internalFormat,
- GLsizei width, GLint border,
- GLenum format, GLenum type,
- const GLvoid *data)
-{
- Assert (!state->compiling_verts, "glTexImage1D not allowed inside glBegin");
- /* technically legal, but stupid! */
- Assert (!state->compiling_list, "glTexImage1D inside glNewList");
- Assert (width == to_pow2(width), "width must be a power of 2");
-
- if (target == GL_TEXTURE_1D) target = GL_TEXTURE_2D;
- jwzgles_glTexImage2D (target, level, internalFormat, width, 1,
- border, format, type, data);
-}
-
-void
-jwzgles_glTexImage2D (GLenum target,
- GLint level,
- GLint internalFormat,
- GLsizei width,
- GLsizei height,
- GLint border,
- GLenum format,
- GLenum type,
- const GLvoid *data)
-{
- GLvoid *d2 = (GLvoid *) data;
- Assert (!state->compiling_verts, "glTexImage2D not allowed inside glBegin");
- Assert (!state->compiling_list, /* technically legal, but stupid! */
- "glTexImage2D not allowed inside glNewList");
-
- Assert (width == to_pow2(width), "width must be a power of 2");
- Assert (height == to_pow2(height), "height must be a power of 2");
-
- /* OpenGLES no longer supports "4" as a synonym for "RGBA". */
- switch (internalFormat) {
- case 1: internalFormat = GL_LUMINANCE; break;
- case 2: internalFormat = GL_LUMINANCE_ALPHA; break;
- case 3: internalFormat = GL_RGB; break;
- case 4: internalFormat = GL_RGBA; break;
- }
-
- /* GLES does not let us omit the data pointer to create a blank texture. */
- if (! data)
- {
- d2 = (GLvoid *) calloc (1, width * height * sizeof(GLfloat) * 4);
- Assert (d2, "out of memory");
- }
-
- if (internalFormat == GL_RGB && format == GL_RGBA)
- internalFormat = GL_RGBA; /* WTF */
- if (type == GL_UNSIGNED_INT_8_8_8_8_REV)
- type = GL_UNSIGNED_BYTE;
-
- if (! state->replaying_list)
- LOG10 ("direct %-12s %s %d %s %d %d %d %s %s 0x%lX", "glTexImage2D",
- mode_desc(target), level, mode_desc(internalFormat),
- width, height, border, mode_desc(format), mode_desc(type),
- (unsigned long) d2);
- glTexImage2D (target, level, internalFormat, width, height, border,
- format, type, d2); /* the real one */
- CHECK("glTexImage2D");
-
- if (d2 != data) free (d2);
-}
-
-void
-jwzgles_glTexSubImage2D (GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const GLvoid *pixels)
-{
- Assert (!state->compiling_verts,
- "glTexSubImage2D not allowed inside glBegin");
- Assert (!state->compiling_list, /* technically legal, but stupid! */
- "glTexSubImage2D not allowed inside glNewList");
-
- if (! state->replaying_list)
- LOG10 ("direct %-12s %s %d %d %d %d %d %s %s 0x%lX", "glTexSubImage2D",
- mode_desc(target), level, xoffset, yoffset, width, height,
- mode_desc (format), mode_desc (type), (unsigned long) pixels);
- glTexSubImage2D (target, level, xoffset, yoffset, width, height,
- format, type, pixels); /* the real one */
- CHECK("glTexSubImage2D");
-}
-
-void
-jwzgles_glCopyTexImage2D (GLenum target, GLint level, GLenum internalformat,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLint border)
-{
- Assert (!state->compiling_verts,
- "glCopyTexImage2D not allowed inside glBegin");
- Assert (!state->compiling_list, /* technically legal, but stupid! */
- "glCopyTexImage2D not allowed inside glNewList");
- if (! state->replaying_list)
- LOG9 ("direct %-12s %s %d %s %d %d %d %d %d", "glCopyTexImage2D",
- mode_desc(target), level, mode_desc(internalformat),
- x, y, width, height, border);
- glCopyTexImage2D (target, level, internalformat, x, y, width, height,
- border); /* the real one */
- CHECK("glCopyTexImage2D");
-}
-
-
-/* OpenGLES doesn't have auto texture-generation at all!
- "Oh, just rewrite that code to use GPU shaders", they say.
- How fucking convenient.
- */
-void
-jwzgles_glTexGenfv (GLenum coord, GLenum pname, const GLfloat *params)
-{
- texgen_state *s;
-
- if (pname == GL_TEXTURE_GEN_MODE)
- LOG5 ("%sdirect %-12s %s %s %s",
- (state->compiling_list || state->replaying_list ? " " : ""),
- "glTexGenfv",
- mode_desc(coord), mode_desc(pname), mode_desc(params[0]));
- else
- LOG8 ("%sdirect %-12s %s %s %3.1f %3.1f %3.1f %3.1f",
- (state->compiling_list || state->replaying_list ? " " : ""),
- "glTexGenfv",
- mode_desc(coord), mode_desc(pname),
- params[0], params[1], params[2], params[3]);
-
- switch (coord) {
- case GL_S: s = &state->s; break;
- case GL_T: s = &state->t; break;
- case GL_R: s = &state->r; break;
- case GL_Q: s = &state->q; break;
- default: Assert (0, "glGetTexGenfv: unknown coord"); break;
- }
-
- switch (pname) {
- case GL_TEXTURE_GEN_MODE: s->mode = params[0]; break;
- case GL_OBJECT_PLANE: memcpy (s->obj, params, sizeof(s->obj)); break;
- case GL_EYE_PLANE: memcpy (s->eye, params, sizeof(s->eye)); break;
- default: Assert (0, "glTexGenfv: unknown pname"); break;
- }
-}
-
-void
-jwzgles_glTexGeni (GLenum coord, GLenum pname, GLint param)
-{
- GLfloat v = param;
- jwzgles_glTexGenfv (coord, pname, &v);
-}
-
-void
-jwzgles_glGetTexGenfv (GLenum coord, GLenum pname, GLfloat *params)
-{
- texgen_state *s;
-
- switch (coord) {
- case GL_S: s = &state->s; break;
- case GL_T: s = &state->t; break;
- case GL_R: s = &state->r; break;
- case GL_Q: s = &state->q; break;
- default: Assert (0, "glGetTexGenfv: unknown coord"); break;
- }
-
- switch (pname) {
- case GL_TEXTURE_GEN_MODE: params[0] = s->mode; break;
- case GL_OBJECT_PLANE: memcpy (params, s->obj, sizeof(s->obj)); break;
- case GL_EYE_PLANE: memcpy (params, s->eye, sizeof(s->eye)); break;
- default: Assert (0, "glGetTexGenfv: unknown pname"); break;
- }
-
- if (pname == GL_TEXTURE_GEN_MODE)
- LOG5 ("%sdirect %-12s %s %s -> %s",
- (state->compiling_list || state->replaying_list ? " " : ""),
- "glGetTexGenfv",
- mode_desc(coord), mode_desc(pname), mode_desc(params[0]));
- else
- LOG8 ("%sdirect %-12s %s %s -> %3.1f %3.1f %3.1f %3.1f",
- (state->compiling_list || state->replaying_list ? " " : ""),
- "glGetTexGenfv",
- mode_desc(coord), mode_desc(pname),
- params[0], params[1], params[2], params[3]);
-}
-
-
-static GLfloat
-dot_product (int rank, GLfloat *a, GLfloat *b)
-{
- /* A dot B => (A[1] * B[1]) + ... + (A[n] * B[n]) */
- GLfloat ret = 0;
- int i;
- for (i = 0; i < rank; i++)
- ret += a[i] * b[i];
- return ret;
-}
-
-
-
-/* Compute the texture coordinates of the prevailing list of verts as per
- http://www.opengl.org/wiki/Mathematics_of_glTexGen
- */
-static void
-generate_texture_coords (GLuint first, GLuint count)
-{
- GLfloat *tex_out, *tex_array;
- GLsizei tex_stride;
- GLuint i;
- draw_array A = { 0, };
- char *verts_in;
-
- struct { GLuint which, flag, mode; GLfloat plane[4]; } tg[4] = {
- { GL_S, ISENABLED_TEXTURE_GEN_S, 0, { 0, } },
- { GL_T, ISENABLED_TEXTURE_GEN_T, 0, { 0, } },
- { GL_R, ISENABLED_TEXTURE_GEN_R, 0, { 0, } },
- { GL_Q, ISENABLED_TEXTURE_GEN_Q, 0, { 0, }}};
-
- int tcoords = 0;
-
- /* Read the texture plane configs that were stored with glTexGen.
- */
- for (i = 0; i < countof(tg); i++)
- {
- GLfloat mode = 0;
- if (! ((state->compiling_list ? state->list_enabled : state->enabled)
- & tg[i].flag))
- continue;
- jwzgles_glGetTexGenfv (tg[i].which, GL_TEXTURE_GEN_MODE, &mode);
- jwzgles_glGetTexGenfv (tg[i].which, GL_OBJECT_PLANE, tg[i].plane);
- tg[i].mode = mode;
- tcoords++;
- }
-
- if (tcoords == 0) return; /* Nothing to do! */
-
-
- /* Make the array to store our texture coords in. */
-
- tex_stride = tcoords * sizeof(GLfloat);
- tex_array = (GLfloat *) calloc (first + count, tex_stride);
- tex_out = tex_array;
-
-
- /* Read the prevailing vertex array, that was stored with
- glVertexPointer or glInterleavedArrays.
- */
- glGetIntegerv (GL_VERTEX_ARRAY_BUFFER_BINDING, &A.binding);
- glGetIntegerv (GL_VERTEX_ARRAY_SIZE, &A.size);
- glGetIntegerv (GL_VERTEX_ARRAY_TYPE, &A.type);
- glGetIntegerv (GL_VERTEX_ARRAY_STRIDE, &A.stride);
- glGetPointerv (GL_VERTEX_ARRAY_POINTER, &A.data);
- A.bytes = count * A.stride;
-
- verts_in = (char *) A.data;
-
- /* Iterate over each vertex we're drawing.
- We just skip the ones < start, but the tex array has
- left room for zeroes there anyway.
- */
- for (i = first; i < first + count; i++)
- {
- GLfloat vert[4] = { 0, };
- int j, k;
-
- /* Extract this vertex into `vert' as a float, whatever its type was. */
- for (j = 0; j < A.size; j++)
- {
- switch (A.type) {
- case GL_SHORT: vert[j] = ((GLshort *) verts_in)[j]; break;
- case GL_INT: vert[j] = ((GLint *) verts_in)[j]; break;
- case GL_FLOAT: vert[j] = ((GLfloat *) verts_in)[j]; break;
- case GL_DOUBLE: vert[j] = ((GLdouble *) verts_in)[j]; break;
- default: Assert (0, "unknown vertex type"); break;
- }
- }
-
- /* Compute the texture coordinate for this vertex.
- For GL_OBJECT_LINEAR, these coordinates are static, and can go
- into the display list. But for GL_EYE_LINEAR, GL_SPHERE_MAP and
- GL_REFLECTION_MAP, they depend on the prevailing ModelView matrix,
- and so need to be computed afresh each time glDrawArrays is called.
- Unfortunately, our verts and norms are gone by then, dumped down
- into the VBO and discarded from CPU RAM. Bleh.
- */
- for (j = 0, k = 0; j < countof(tg); j++)
- {
- if (! ((state->compiling_list ? state->list_enabled : state->enabled)
- & tg[j].flag))
- continue;
- switch (tg[j].mode) {
- case GL_OBJECT_LINEAR:
- tex_out[k] = dot_product (4, vert, tg[j].plane);
- break;
- default:
- Assert (0, "unimplemented texture mode");
- break;
- }
- k++;
- }
-
- /* fprintf (stderr, "%4d: V %-5.1f %-5.1f %-5.1f T %-5.1f %-5.1f\n",
- i, vert[0], vert[1], vert[2], tex_out[0], tex_out[1]); */
-
- /* Move verts_in and tex_out forward to the next vertex by stride. */
- verts_in += A.stride;
- tex_out = (GLfloat *) (((char *) tex_out) + tex_stride);
- }
-
- jwzgles_glEnableClientState (GL_TEXTURE_COORD_ARRAY);
- jwzgles_glTexCoordPointer (tcoords, GL_FLOAT, tex_stride,
- (GLvoid *) tex_array);
- free (tex_array);
-}
-
-
-int
-jwzgles_gluBuild2DMipmaps (GLenum target,
- GLint internalFormat,
- GLsizei width,
- GLsizei height,
- GLenum format,
- GLenum type,
- const GLvoid *data)
-{
- /* Not really bothering with mipmapping; only making one level.
- Note that this required a corresponding hack in glTexParameterf().
- */
-
- int w2 = to_pow2(width);
- int h2 = to_pow2(height);
-
- void *d2 = (void *) data;
-
- /* OpenGLES no longer supports "4" as a synonym for "RGBA". */
- switch (internalFormat) {
- case 1: internalFormat = GL_LUMINANCE; break;
- case 2: internalFormat = GL_LUMINANCE_ALPHA; break;
- case 3: internalFormat = GL_RGB; break;
- case 4: internalFormat = GL_RGBA; break;
- }
-
-/* if (w2 < h2) w2 = h2;
- if (h2 < w2) h2 = w2;*/
-
- if (w2 != width || h2 != height)
- {
- /* Scale up the image bits to fit the power-of-2 texture.
- We have to do this because the mipmap API assumes that
- the texture bits go to texture coordinates 1.0 x 1.0.
- This could be more efficient, but it doesn't happen often.
- */
- int istride = (format == GL_RGBA ? 4 : 3);
- int ostride = 4;
- int ibpl = istride * width;
- int obpl = ostride * w2;
- int oy;
- const unsigned char *in = (unsigned char *) data;
- unsigned char *out = (void *) malloc (h2 * obpl);
- Assert (out, "out of memory");
- d2 = out;
-
- for (oy = 0; oy < h2; oy++)
- {
- int iy = oy * height / h2;
- const unsigned char *iline = in + (iy * ibpl);
- unsigned char *oline = out + (oy * obpl);
- int ox;
- for (ox = 0; ox < w2; ox++)
- {
- int ix = ox * width / w2;
- const unsigned char *i = iline + (ix * istride);
- unsigned char *o = oline + (ox * ostride);
- *o++ = *i++; /* R */
- *o++ = *i++; /* G */
- *o++ = *i++; /* B */
- *o++ = (istride == 4 ? *i : 0xFF); /* A */
- }
- }
- width = w2;
- height = h2;
- internalFormat = GL_RGBA;
- format = GL_RGBA;
- }
-
- jwzgles_glTexImage2D (target, 0, internalFormat, w2, h2, 0,
- format, type, d2);
- if (d2 != data) free (d2);
-
- return 0;
-}
-
-
-void
-jwzgles_glRectf (GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2)
-{
- jwzgles_glBegin (GL_POLYGON);
- jwzgles_glVertex2f (x1, y1);
- jwzgles_glVertex2f (x2, y1);
- jwzgles_glVertex2f (x2, y2);
- jwzgles_glVertex2f (x1, y2);
- jwzgles_glEnd ();
-}
-
-void
-jwzgles_glRecti (GLint x1, GLint y1, GLint x2, GLint y2)
-{
- jwzgles_glRectf (x1, y1, x2, y2);
-}
-
-void
-jwzgles_glClearDepth (GLfloat d)
-{
- /* Not sure what to do here */
- Assert (d == 1.0, "glClearDepth unimplemented");
-}
-
-
-/* When in immediate mode, we store a bit into state->enabled, and also
- call the real glEnable() / glDisable().
-
- When recording a list, we store a bit into state->list_enabled instead,
- so that we can see what the prevailing enablement state will be when
- the list is run.
-
- set: 1 = set, -1 = clear, 0 = query.
-*/
-static int
-enable_disable (GLuint bit, int set)
-{
- int result = (set > 0);
- int omitp = 0;
- int csp = 0;
- unsigned long flag = 0;
-
- switch (bit) {
- case GL_TEXTURE_1D: /* We implement 1D textures as 2D textures. */
- case GL_TEXTURE_2D: flag = ISENABLED_TEXTURE_2D; break;
- case GL_TEXTURE_GEN_S: flag = ISENABLED_TEXTURE_GEN_S; omitp = 1; break;
- case GL_TEXTURE_GEN_T: flag = ISENABLED_TEXTURE_GEN_T; omitp = 1; break;
- case GL_TEXTURE_GEN_R: flag = ISENABLED_TEXTURE_GEN_R; omitp = 1; break;
- case GL_TEXTURE_GEN_Q: flag = ISENABLED_TEXTURE_GEN_Q; omitp = 1; break;
- case GL_LIGHTING: flag = ISENABLED_LIGHTING; break;
- case GL_BLEND: flag = ISENABLED_BLEND; break;
- case GL_DEPTH_TEST: flag = ISENABLED_DEPTH_TEST; break;
- case GL_ALPHA_TEST: flag = ISENABLED_ALPHA_TEST; break;
- case GL_CULL_FACE: flag = ISENABLED_CULL_FACE; break;
- case GL_NORMALIZE: flag = ISENABLED_NORMALIZE; break;
- case GL_FOG: flag = ISENABLED_FOG; break;
- case GL_COLOR_MATERIAL: flag = ISENABLED_COLMAT; break;
-
- /* Maybe technically these only work with glEnableClientState,
- but we treat that as synonymous with glEnable. */
- case GL_VERTEX_ARRAY: flag = ISENABLED_VERT_ARRAY; csp = 1; break;
- case GL_NORMAL_ARRAY: flag = ISENABLED_NORM_ARRAY; csp = 1; break;
- case GL_COLOR_ARRAY: flag = ISENABLED_COLOR_ARRAY; csp = 1; break;
- case GL_TEXTURE_COORD_ARRAY: flag = ISENABLED_TEX_ARRAY; csp = 1; break;
-
- default:
- Assert (set != 0, "glIsEnabled unimplemented bit");
- break;
- }
-
- if (set) /* setting or unsetting, not querying */
- {
- const char *fns[4] = { "glEnable", "glDisable",
- "glEnableClientState", "glDisableClientState" };
- list_fn_cb fs[4] = { (list_fn_cb) &jwzgles_glEnable,
- (list_fn_cb) &jwzgles_glDisable,
- (list_fn_cb) &jwzgles_glEnableClientState,
- (list_fn_cb) &jwzgles_glDisableClientState };
- const char *fn = fns[(csp ? 2 : 0) + (set < 0 ? 1 : 0)];
- list_fn_cb f = fs[(csp ? 2 : 0) + (set < 0 ? 1 : 0)];
-
- Assert (!state->compiling_verts,
- "glEnable/glDisable not allowed inside glBegin");
-
- if (state->compiling_list)
- {
- void_int vv[1];
- vv[0].i = bit;
- list_push (fn, f,PROTO_I, vv);
- }
-
- if (! state->replaying_list &&
- ! state->compiling_list)
- LOG2 ("direct %-12s %s", fn, mode_desc(bit));
-
- if (csp && !state->compiling_verts)
- {
- if (set > 0)
- switch (bit) {
- case GL_NORMAL_ARRAY: state->set.ncount += 2; break;
- case GL_TEXTURE_COORD_ARRAY: state->set.tcount += 2; break;
- case GL_COLOR_ARRAY: state->set.ccount += 2; break;
- default: break;
- }
- else
- switch (bit) {
- case GL_NORMAL_ARRAY: state->set.ncount = 0; break;
- case GL_TEXTURE_COORD_ARRAY: state->set.tcount = 0; break;
- case GL_COLOR_ARRAY: state->set.ccount = 0; break;
- default: break;
- }
- }
-
- if (omitp || state->compiling_list)
- ;
- else if (set > 0 && csp)
- glEnableClientState (bit); /* the real one */
- else if (set < 0 && csp)
- glDisableClientState (bit); /* the real one */
- else if (set > 0)
- glEnable (bit); /* the real one */
- else
- glDisable (bit); /* the real one */
-
- CHECK(fn);
- }
-
- /* Store the bit in our state as well, or query it.
- */
- if (flag)
- {
- unsigned long *enabled = (state->compiling_list
- ? &state->list_enabled
- : &state->enabled);
- if (set > 0)
- *enabled |= flag;
- else if (set < 0)
- *enabled &= ~flag;
- else
- result = !!(*enabled & flag);
- }
-
- return result;
-}
-
-
-void
-jwzgles_glEnable (GLuint bit)
-{
- enable_disable (bit, 1);
-}
-
-void
-jwzgles_glDisable (GLuint bit)
-{
- enable_disable (bit, -1);
-}
-
-GLboolean
-jwzgles_glIsEnabled (GLuint bit)
-{
- return enable_disable (bit, 0);
-}
-
-void
-jwzgles_glEnableClientState (GLuint cap)
-{
- enable_disable (cap, 1);
-}
-
-void
-jwzgles_glDisableClientState (GLuint cap)
-{
- enable_disable (cap, -1);
-}
-
-
-
-/* The spec says that OpenGLES 1.x doesn't implement glGetFloatv.
- Were this true, it would suck, for it would mean that there was no
- way to retrieve the prevailing matrixes. To implement this, we'd
- have to keep track of them all on the client side by combining in
- all the actions of glMultMatrixf, glRotatef, etc.
-
- However, Apple's iOS OpenGLES *does* provide glGetFloatv!
- */
-void
-jwzgles_glGetFloatv (GLenum pname, GLfloat *params)
-{
- if (! state->replaying_list)
- LOG2 ("direct %-12s %s", "glGetFloatv", mode_desc(pname));
- glGetFloatv (pname, params); /* the real one */
- CHECK("glGetFloatv");
-}
-
-
-/* Likewise: not supposed to be there, but it is. */
-void
-jwzgles_glGetPointerv (GLenum pname, GLvoid *params)
-{
- if (! state->replaying_list)
- LOG2 ("direct %-12s %s", "glGetPointerv", mode_desc(pname));
- glGetPointerv (pname, params); /* the real one */
- CHECK("glGetPointerv");
-}
-
-
-/* How many cells are written into the *params array.
- We need to know this to avoid smashing the caller's stack
- if they asked for a single-value parameter.
- */
-static int
-glGet_ret_count (GLenum pname)
-{
- switch (pname) {
-/*case GL_COLOR_MATRIX: */
- case GL_MODELVIEW_MATRIX:
- case GL_PROJECTION_MATRIX:
- case GL_TEXTURE_MATRIX:
-/*case GL_TRANSPOSE_COLOR_MATRIX: */
-/*case GL_TRANSPOSE_MODELVIEW_MATRIX: */
-/*case GL_TRANSPOSE_PROJECTION_MATRIX: */
-/*case GL_TRANSPOSE_TEXTURE_MATRIX: */
- return 16;
-/*case GL_ACCUM_CLEAR_VALUE: */
-/*case GL_BLEND_COLOR: */
- case GL_COLOR_CLEAR_VALUE:
- case GL_COLOR_WRITEMASK:
- case GL_CURRENT_COLOR:
-/*case GL_CURRENT_RASTER_COLOR: */
-/*case GL_CURRENT_RASTER_POSITION: */
-/*case GL_CURRENT_RASTER_SECONDARY_COLOR: */
-/*case GL_CURRENT_RASTER_TEXTURE_COORDS: */
-/*case GL_CURRENT_SECONDARY_COLOR: */
- case GL_CURRENT_TEXTURE_COORDS:
- case GL_FOG_COLOR:
- case GL_LIGHT_MODEL_AMBIENT:
-/*case GL_MAP2_GRID_DOMAIN: */
- case GL_SCISSOR_BOX:
- case GL_VIEWPORT:
- return 4;
- case GL_CURRENT_NORMAL:
- case GL_POINT_DISTANCE_ATTENUATION:
- return 3;
- case GL_ALIASED_LINE_WIDTH_RANGE:
- case GL_ALIASED_POINT_SIZE_RANGE:
- case GL_DEPTH_RANGE:
-/*case GL_LINE_WIDTH_RANGE: */
-/*case GL_MAP1_GRID_DOMAIN: */
-/*case GL_MAP2_GRID_SEGMENTS: */
- case GL_MAX_VIEWPORT_DIMS:
-/*case GL_POINT_SIZE_RANGE: */
- case GL_POLYGON_MODE:
- case GL_SMOOTH_LINE_WIDTH_RANGE:
- case GL_SMOOTH_POINT_SIZE_RANGE:
- return 2;
- default:
- return 1;
- }
-}
-
-
-void
-jwzgles_glGetDoublev (GLenum pname, GLdouble *params)
-{
- GLfloat m[16];
- int i, j = glGet_ret_count (pname);
- jwzgles_glGetFloatv (pname, m);
- for (i = 0; i < j; i++)
- params[i] = m[i];
-}
-
-
-void
-jwzgles_glGetIntegerv (GLenum pname, GLint *params)
-{
- GLfloat m[16];
- int i, j = glGet_ret_count (pname);
- jwzgles_glGetFloatv (pname, m);
- for (i = 0; i < j; i++)
- params[i] = m[i];
-}
-
-
-void
-jwzgles_glGetBooleanv (GLenum pname, GLboolean *params)
-{
- GLfloat m[16];
- int i, j = glGet_ret_count (pname);
- jwzgles_glGetFloatv (pname, m);
- for (i = 0; i < j; i++)
- params[i] = (m[i] != 0.0);
-}
-
-
-const char *
-jwzgles_gluErrorString (GLenum error)
-{
- static char s[20];
- sprintf (s, "0x%lX", (unsigned long) error);
- return s;
-}
-
-
-/* These four *Pointer calls (plus glBindBuffer and glBufferData) can
- be included inside glNewList, but they actually execute immediately
- anyway, because their data is recorded in the list by the
- subsequently-recorded call to glDrawArrays. This is a little weird.
- */
-void
-jwzgles_glVertexPointer (GLuint size, GLuint type, GLuint stride,
- const GLvoid *ptr)
-{
- if (! state->replaying_list)
- LOG5 ("direct %-12s %d %s %d 0x%lX", "glVertexPointer",
- size, mode_desc(type), stride, (unsigned long) ptr);
- glVertexPointer (size, type, stride, ptr); /* the real one */
- CHECK("glVertexPointer");
-}
-
-
-void
-jwzgles_glNormalPointer (GLuint type, GLuint stride, const GLvoid *ptr)
-{
- if (! state->replaying_list)
- LOG4 ("direct %-12s %s %d 0x%lX", "glNormalPointer",
- mode_desc(type), stride, (unsigned long) ptr);
- glNormalPointer (type, stride, ptr); /* the real one */
- CHECK("glNormalPointer");
-}
-
-void
-jwzgles_glColorPointer (GLuint size, GLuint type, GLuint stride,
- const GLvoid *ptr)
-{
- if (! state->replaying_list)
- LOG5 ("direct %-12s %d %s %d 0x%lX", "glColorPointer",
- size, mode_desc(type), stride, (unsigned long) ptr);
- glColorPointer (size, type, stride, ptr); /* the real one */
- CHECK("glColorPointer");
-}
-
-void
-jwzgles_glTexCoordPointer (GLuint size, GLuint type, GLuint stride,
- const GLvoid *ptr)
-{
- if (! state->replaying_list)
- LOG5 ("direct %-12s %d %s %d 0x%lX", "glTexCoordPointer",
- size, mode_desc(type), stride, (unsigned long) ptr);
- glTexCoordPointer (size, type, stride, ptr); /* the real one */
- CHECK("glTexCoordPointer");
-}
-
-void
-jwzgles_glBindBuffer (GLuint target, GLuint buffer)
-{
- if (! state->replaying_list)
- LOG3 ("direct %-12s %s %d", "glBindBuffer", mode_desc(target), buffer);
- glBindBuffer (target, buffer); /* the real one */
- CHECK("glBindBuffer");
-}
-
-void
-jwzgles_glBufferData (GLenum target, GLsizeiptr size, const void *data,
- GLenum usage)
-{
- if (! state->replaying_list)
- LOG5 ("direct %-12s %s %ld 0x%lX %s", "glBufferData",
- mode_desc(target), size, (unsigned long) data, mode_desc(usage));
- glBufferData (target, size, data, usage); /* the real one */
- CHECK("glBufferData");
-}
-
-
-void
-jwzgles_glTexParameterf (GLuint target, GLuint pname, GLfloat param)
-{
- Assert (!state->compiling_verts,
- "glTexParameterf not allowed inside glBegin");
-
- /* We don't *really* implement mipmaps, so just turn this off. */
- if (param == GL_LINEAR_MIPMAP_LINEAR) param = GL_LINEAR;
- if (param == GL_NEAREST_MIPMAP_LINEAR) param = GL_LINEAR;
- if (param == GL_LINEAR_MIPMAP_NEAREST) param = GL_NEAREST;
- if (param == GL_NEAREST_MIPMAP_NEAREST) param = GL_NEAREST;
-
- /* We implement 1D textures as 2D textures. */
- if (target == GL_TEXTURE_1D) target = GL_TEXTURE_2D;
-
- /* Apparently this is another invalid enum. Just ignore it. */
- if ((pname == GL_TEXTURE_WRAP_S || pname == GL_TEXTURE_WRAP_T) &&
- param == GL_CLAMP)
- return;
-
- if (state->compiling_list)
- {
- void_int vv[3];
- vv[0].i = target;
- vv[1].i = pname;
- vv[2].f = param;
- list_push ("glTexParameterf", (list_fn_cb) &jwzgles_glTexParameterf,
- PROTO_IIF, vv);
- }
- else
- {
- if (! state->replaying_list)
- LOG4 ("direct %-12s %s %s %7.3f", "glTexParameterf",
- mode_desc(target), mode_desc(pname), param);
- glTexParameterf (target, pname, param); /* the real one */
- CHECK("glTexParameterf");
- }
-}
-
-void
-jwzgles_glTexParameteri (GLuint target, GLuint pname, GLuint param)
-{
- jwzgles_glTexParameterf (target, pname, param);
-}
-
-
-void
-jwzgles_glBindTexture (GLuint target, GLuint texture)
-{
- Assert (!state->compiling_verts,
- "glBindTexture not allowed inside glBegin");
-
- /* We implement 1D textures as 2D textures. */
- if (target == GL_TEXTURE_1D) target = GL_TEXTURE_2D;
-
- if (state->compiling_list)
- {
- void_int vv[2];
- vv[0].i = target;
- vv[1].i = texture;
- list_push ("glBindTexture", (list_fn_cb) &jwzgles_glBindTexture,
- PROTO_II, vv);
- }
-
- /* Do it immediately as well, for generate_texture_coords */
- /* else */
- {
- if (! state->replaying_list)
- LOG3 ("direct %-12s %s %d", "glBindTexture",
- mode_desc(target), texture);
- glBindTexture (target, texture); /* the real one */
- CHECK("glBindTexture");
- }
-}
-
-
-
-/* Matrix functions, mostly cribbed from Mesa.
- */
-
-void
-jwzgles_glFrustum (GLfloat left, GLfloat right,
- GLfloat bottom, GLfloat top,
- GLfloat near, GLfloat far)
-{
- GLfloat m[16];
- GLfloat x = (2 * near) / (right-left);
- GLfloat y = (2 * near) / (top - bottom);
- GLfloat a = (right + left) / (right - left);
- GLfloat b = (top + bottom) / (top - bottom);
- GLfloat c = -(far + near) / (far - near);
- GLfloat d = -(2 * far * near) / (far - near);
-
-# define M(X,Y) m[Y * 4 + X]
- M(0,0) = x; M(0,1) = 0; M(0,2) = a; M(0,3) = 0;
- M(1,0) = 0; M(1,1) = y; M(1,2) = b; M(1,3) = 0;
- M(2,0) = 0; M(2,1) = 0; M(2,2) = c; M(2,3) = d;
- M(3,0) = 0; M(3,1) = 0; M(3,2) = -1; M(3,3) = 0;
-# undef M
-
- jwzgles_glMultMatrixf (m);
-}
-
-
-void
-jwzgles_glOrtho (GLfloat left, GLfloat right,
- GLfloat bottom, GLfloat top,
- GLfloat near, GLfloat far)
-{
- GLfloat m[16];
- GLfloat a = 2 / (right - left);
- GLfloat b = -(right + left) / (right - left);
- GLfloat c = 2 / (top - bottom);
- GLfloat d = -(top + bottom) / (top - bottom);
- GLfloat e = -2 / (far - near);
- GLfloat f = -(far + near) / (far - near);
-
-# define M(X,Y) m[Y * 4 + X]
- M(0,0) = a; M(0,1) = 0; M(0,2) = 0; M(0,3) = b;
- M(1,0) = 0; M(1,1) = c; M(1,2) = 0; M(1,3) = d;
- M(2,0) = 0; M(2,1) = 0; M(2,2) = e; M(2,3) = f;
- M(3,0) = 0; M(3,1) = 0; M(3,2) = 0; M(3,3) = 1;
-# undef M
-
- jwzgles_glMultMatrixf (m);
-}
-
-
-void
-jwzgles_gluPerspective (GLdouble fovy, GLdouble aspect,
- GLdouble near, GLdouble far)
-{
- GLfloat m[16];
- double si, co, dz;
- double rad = fovy / 2 * M_PI / 180;
- double a, b, c, d;
-
- dz = far - near;
- si = sin(rad);
- if (dz == 0 || si == 0 || aspect == 0)
- return;
- co = cos(rad) / si;
-
- a = co / aspect;
- b = co;
- c = -(far + near) / dz;
- d = -2 * near * far / dz;
-
-# define M(X,Y) m[Y * 4 + X]
- M(0,0) = a; M(0,1) = 0; M(0,2) = 0; M(0,3) = 0;
- M(1,0) = 0; M(1,1) = b; M(1,2) = 0; M(1,3) = 0;
- M(2,0) = 0; M(2,1) = 0; M(2,2) = c; M(2,3) = d;
- M(3,0) = 0; M(3,1) = 0; M(3,2) = -1; M(3,3) = 0;
-# undef M
-
- jwzgles_glMultMatrixf (m);
-}
-
-
-void
-jwzgles_gluLookAt (GLfloat eyex, GLfloat eyey, GLfloat eyez,
- GLfloat centerx, GLfloat centery, GLfloat centerz,
- GLfloat upx, GLfloat upy, GLfloat upz)
-{
- GLfloat m[16];
- GLfloat x[3], y[3], z[3];
- GLfloat mag;
-
- /* Make rotation matrix */
-
- /* Z vector */
- z[0] = eyex - centerx;
- z[1] = eyey - centery;
- z[2] = eyez - centerz;
- mag = sqrt(z[0] * z[0] + z[1] * z[1] + z[2] * z[2]);
- if (mag) { /* mpichler, 19950515 */
- z[0] /= mag;
- z[1] /= mag;
- z[2] /= mag;
- }
-
- /* Y vector */
- y[0] = upx;
- y[1] = upy;
- y[2] = upz;
-
- /* X vector = Y cross Z */
- x[0] = y[1] * z[2] - y[2] * z[1];
- x[1] = -y[0] * z[2] + y[2] * z[0];
- x[2] = y[0] * z[1] - y[1] * z[0];
-
- /* Recompute Y = Z cross X */
- y[0] = z[1] * x[2] - z[2] * x[1];
- y[1] = -z[0] * x[2] + z[2] * x[0];
- y[2] = z[0] * x[1] - z[1] * x[0];
-
- /* mpichler, 19950515 */
- /* cross product gives area of parallelogram, which is < 1.0 for
- * non-perpendicular unit-length vectors; so normalize x, y here
- */
-
- mag = sqrt(x[0] * x[0] + x[1] * x[1] + x[2] * x[2]);
- if (mag) {
- x[0] /= mag;
- x[1] /= mag;
- x[2] /= mag;
- }
-
- mag = sqrt(y[0] * y[0] + y[1] * y[1] + y[2] * y[2]);
- if (mag) {
- y[0] /= mag;
- y[1] /= mag;
- y[2] /= mag;
- }
-
-#define M(row,col) m[col*4+row]
- M(0, 0) = x[0]; M(0, 1) = x[1]; M(0, 2) = x[2]; M(0, 3) = 0.0;
- M(1, 0) = y[0]; M(1, 1) = y[1]; M(1, 2) = y[2]; M(1, 3) = 0.0;
- M(2, 0) = z[0]; M(2, 1) = z[1]; M(2, 2) = z[2]; M(2, 3) = 0.0;
- M(3, 0) = 0.0; M(3, 1) = 0.0; M(3, 2) = 0.0; M(3, 3) = 1.0;
-#undef M
-
- jwzgles_glMultMatrixf(m);
-
- /* Translate Eye to Origin */
- jwzgles_glTranslatef(-eyex, -eyey, -eyez);
-}
-
-
-static void __gluMultMatrixVecd (const GLdouble matrix[16],
- const GLdouble in[4],
- GLdouble out[4])
-{
- int i;
-
- for (i=0; i<4; i++) {
- out[i] =
- in[0] * matrix[0*4+i] +
- in[1] * matrix[1*4+i] +
- in[2] * matrix[2*4+i] +
- in[3] * matrix[3*4+i];
- }
-}
-
-GLint
-jwzgles_gluProject (GLdouble objx, GLdouble objy, GLdouble objz,
- const GLdouble modelMatrix[16],
- const GLdouble projMatrix[16],
- const GLint viewport[4],
- GLdouble *winx, GLdouble *winy, GLdouble *winz)
-{
- GLdouble in[4];
- GLdouble out[4];
-
- /* #### I suspect this is not working right. I was seeing crazy values
- in lament.c. Maybe there's some float-vs-double confusion going on?
- */
-
- in[0]=objx;
- in[1]=objy;
- in[2]=objz;
- in[3]=1.0;
- __gluMultMatrixVecd(modelMatrix, in, out);
- __gluMultMatrixVecd(projMatrix, out, in);
- if (in[3] == 0.0) return(GL_FALSE);
- in[0] /= in[3];
- in[1] /= in[3];
- in[2] /= in[3];
- /* Map x, y and z to range 0-1 */
- in[0] = in[0] * 0.5 + 0.5;
- in[1] = in[1] * 0.5 + 0.5;
- in[2] = in[2] * 0.5 + 0.5;
-
- /* Map x,y to viewport */
- in[0] = in[0] * viewport[2] + viewport[0];
- in[1] = in[1] * viewport[3] + viewport[1];
-
- *winx=in[0];
- *winy=in[1];
- *winz=in[2];
- return(GL_TRUE);
-}
-
-
-void jwzgles_glViewport (GLuint x, GLuint y, GLuint w, GLuint h)
-{
-# if TARGET_IPHONE_SIMULATOR
-/* fprintf (stderr, "glViewport %dx%d\n", w, h); */
-# endif
- glViewport (x, y, w, h); /* the real one */
-}
-
-
-/* The following functions are present in both OpenGL 1.1 and in OpenGLES 1,
- but are allowed within glNewList/glEndList, so we must wrap them to allow
- them to either be recorded in lists, or run directly.
-
- All this CPP obscenity is me screaming in rage at all the ways that C is
- not Lisp, as all I want to do here is DEFADVICE.
- */
-
-#define PROTO_V PROTO_VOID
-#define TYPE_V GLuint
-#define ARGS_V void
-#define VARS_V /* */
-#define LOGS_V "\n"
-#define FILL_V /* */
-
-#define TYPE_I GLuint
-#define TYPE_II TYPE_I
-#define TYPE_III TYPE_I
-#define TYPE_IIII TYPE_I
-#define ARGS_I TYPE_I a
-#define ARGS_II TYPE_I a, TYPE_I b
-#define ARGS_III TYPE_I a, TYPE_I b, TYPE_I c
-#define ARGS_IIII TYPE_I a, TYPE_I b, TYPE_I c, TYPE_I d
-#define LOGS_I "%s\n", mode_desc(a)
-#define LOGS_II "%s %d\n", mode_desc(a), b
-#define LOGS_III "%s %s %s\n", mode_desc(a), mode_desc(b), mode_desc(c)
-#define LOGS_IIII "%d %d %d %d\n", a, b, c, d
-#define VARS_I a
-#define VARS_II a, b
-#define VARS_III a, b, c
-#define VARS_IIII a, b, c, d
-#define FILL_I vv[0].i = a;
-#define FILL_II vv[0].i = a; vv[1].i = b;
-#define FILL_III vv[0].i = a; vv[1].i = b; vv[2].i = c;
-#define FILL_IIII vv[0].i = a; vv[1].i = b; vv[2].i = c; vv[3].i = d;
-
-#define TYPE_F GLfloat
-#define TYPE_FF TYPE_F
-#define TYPE_FFF TYPE_F
-#define TYPE_FFFF TYPE_F
-#define ARGS_F TYPE_F a
-#define ARGS_FF TYPE_F a, TYPE_F b
-#define ARGS_FFF TYPE_F a, TYPE_F b, TYPE_F c
-#define ARGS_FFFF TYPE_F a, TYPE_F b, TYPE_F c, TYPE_F d
-#define LOGS_F "%7.3f\n", a
-#define LOGS_FF "%7.3f %7.3f\n", a, b
-#define LOGS_FFF "%7.3f %7.3f %7.3f\n", a, b, c
-#define LOGS_FFFF "%7.3f %7.3f %7.3f %7.3f\n", a, b, c, d
-#define VARS_F VARS_I
-#define VARS_FF VARS_II
-#define VARS_FFF VARS_III
-#define VARS_FFFF VARS_IIII
-#define FILL_F vv[0].f = a;
-#define FILL_FF vv[0].f = a; vv[1].f = b;
-#define FILL_FFF vv[0].f = a; vv[1].f = b; vv[2].f = c;
-#define FILL_FFFF vv[0].f = a; vv[1].f = b; vv[2].f = c; vv[3].f = d;
-
-#define ARGS_IF TYPE_I a, TYPE_F b
-#define VARS_IF VARS_II
-#define LOGS_IF "%s %7.3f\n", mode_desc(a), b
-#define FILL_IF vv[0].i = a; vv[1].f = b;
-
-#define ARGS_IIF TYPE_I a, TYPE_I b, TYPE_F c
-#define VARS_IIF VARS_III
-#define LOGS_IIF "%s %s %7.3f\n", mode_desc(a), mode_desc(b), c
-#define FILL_IIF vv[0].i = a; vv[1].i = b; vv[2].f = c;
-
-#define TYPE_IV GLint
-#define ARGS_IIV TYPE_I a, const TYPE_IV *b
-#define VARS_IIV VARS_II
-#define LOGS_IIV "%s %d %d %d %d\n", mode_desc(a), b[0], b[1], b[2], b[3]
-#define FILL_IIV vv[0].i = a; \
- vv[1].i = b[0]; vv[2].i = b[1]; \
- vv[3].i = b[2]; vv[4].i = b[3];
-
-#define ARGS_IFV TYPE_I a, const TYPE_F *b
-#define VARS_IFV VARS_II
-#define LOGS_IFV "%s %7.3f %7.3f %7.3f %7.3f\n", mode_desc(a), \
- b[0], b[1], b[2], b[3]
-#define FILL_IFV vv[0].i = a; \
- vv[1].f = b[0]; vv[2].f = b[1]; \
- vv[3].f = b[2]; vv[4].f = b[3];
-
-#define ARGS_IIIV TYPE_I a, TYPE_I b, const TYPE_IV *c
-#define VARS_IIIV VARS_III
-#define LOGS_IIIV "%s %-8s %3d %3d %3d %3d\n", mode_desc(a), mode_desc(b), \
- c[0], c[1], c[2], c[3]
-#define FILL_IIIV vv[0].i = a; vv[1].i = b; \
- vv[2].i = c[0]; vv[3].i = c[1]; \
- vv[4].i = c[2]; vv[5].i = c[3];
-
-#define ARGS_IIFV TYPE_I a, TYPE_I b, const TYPE_F *c
-#define VARS_IIFV VARS_III
-#define LOGS_IIFV "%s %-8s %7.3f %7.3f %7.3f %7.3f\n", \
- mode_desc(a), mode_desc(b), \
- c[0], c[1], c[2], c[3]
-#define FILL_IIFV vv[0].i = a; vv[1].i = b; \
- vv[2].f = c[0]; vv[3].f = c[1]; \
- vv[4].f = c[2]; vv[5].f = c[3];
-
-#ifdef DEBUG
-# define WLOG(NAME,ARGS) \
- fprintf (stderr, "jwzgles: direct %-12s ", NAME); \
- fprintf (stderr, ARGS)
-#else
-# define WLOG(NAME,ARGS) /* */
-#endif
-
-#define WRAP(NAME,SIG) \
-void jwzgles_##NAME (ARGS_##SIG) \
-{ \
- Assert (!state->compiling_verts, \
- STRINGIFY(NAME) " not allowed inside glBegin"); \
- if (state->compiling_list) { \
- void_int vv[10]; \
- FILL_##SIG \
- list_push (STRINGIFY(NAME), (list_fn_cb) &jwzgles_##NAME, \
- PROTO_##SIG, vv); \
- } else { \
- if (! state->replaying_list) { \
- WLOG (STRINGIFY(NAME), LOGS_##SIG); \
- } \
- NAME (VARS_##SIG); \
- CHECK(STRINGIFY(NAME)); \
- } \
-}
-
-WRAP (glActiveTexture, I)
-WRAP (glAlphaFunc, IF)
-WRAP (glBlendFunc, II)
-WRAP (glClear, I)
-WRAP (glClearColor, FFFF)
-WRAP (glClearStencil, I)
-WRAP (glColorMask, IIII)
-WRAP (glCullFace, I)
-WRAP (glDepthFunc, I)
-WRAP (glDepthMask, I)
-WRAP (glFinish, V)
-WRAP (glFlush, V)
-WRAP (glFogf, IF)
-WRAP (glFogfv, IFV)
-WRAP (glFrontFace, I)
-WRAP (glHint, II)
-WRAP (glLightModelf, IF)
-WRAP (glLightModelfv, IFV)
-WRAP (glLightf, IIF)
-WRAP (glLightfv, IIFV)
-WRAP (glLineWidth, F)
-WRAP (glLoadIdentity, V)
-WRAP (glLogicOp, I)
-WRAP (glMatrixMode, I)
-WRAP (glPixelStorei, II)
-WRAP (glPointSize, F)
-WRAP (glPolygonOffset, FF)
-WRAP (glPopMatrix, V)
-WRAP (glPushMatrix, V)
-WRAP (glRotatef, FFFF)
-WRAP (glScalef, FFF)
-WRAP (glScissor, IIII)
-WRAP (glShadeModel, I)
-WRAP (glStencilFunc, III)
-WRAP (glStencilMask, I)
-WRAP (glStencilOp, III)
-WRAP (glTexEnvf, IIF)
-WRAP (glTexEnvi, III)
-WRAP (glTranslatef, FFF)
-#undef TYPE_IV
-#define TYPE_IV GLuint
-WRAP (glDeleteTextures, IIV)
-
-
-#endif /* HAVE_JWZGLES - whole file */
projects / xscreensaver / blobdiff