#define GL_COLOR_INDEX8_EXT 0x80E5
-extern unsigned char d_15to8table[65536];
-
cvar_t qsg_version = {"qsg_version", "1"};
-cvar_t gl_max_size = {"gl_max_size", "1024"};
-cvar_t gl_picmip = {"gl_picmip", "0"};
-cvar_t gl_conalpha = {"gl_conalpha", "1"};
-cvar_t gl_lerpimages = {"gl_lerpimages", "1"};
+cvar_t scr_conalpha = {"scr_conalpha", "1"};
byte *draw_chars; // 8*8 graphic characters
qpic_t *draw_disc;
-int translate_texture;
int char_texture;
typedef struct
float sl, tl, sh, th;
} glpic_t;
-byte conback_buffer[sizeof(qpic_t) + sizeof(glpic_t)];
-qpic_t *conback = (qpic_t *)&conback_buffer;
-
-int gl_filter_min = GL_LINEAR_MIPMAP_LINEAR; //NEAREST;
-int gl_filter_max = GL_LINEAR;
-
-
-int texels;
-
-typedef struct
-{
- int texnum;
- char identifier[64];
- int width, height;
- qboolean mipmap;
-// LordHavoc: 32bit textures
- int bytesperpixel;
-// LordHavoc: CRC to identify cache mismatchs
- int crc;
- int lerped; // whether this texture was uploaded with or without interpolation
-} gltexture_t;
-
-#define MAX_GLTEXTURES 4096
-gltexture_t gltextures[MAX_GLTEXTURES];
-int numgltextures;
+int conbacktexnum;
/*
=============================================================================
=============================================================================
*/
+/*
#define MAX_SCRAPS 2
#define BLOCK_WIDTH 256
#define BLOCK_HEIGHT 256
int scrap_allocated[MAX_SCRAPS][BLOCK_WIDTH];
byte scrap_texels[MAX_SCRAPS][BLOCK_WIDTH*BLOCK_HEIGHT*4];
qboolean scrap_dirty;
-int scrap_texnum;
// returns a texture number and the position inside it
int Scrap_AllocBlock (int w, int h, int *x, int *y)
}
int scrap_uploads;
+int scraptexnum[MAX_SCRAPS];
void Scrap_Upload (void)
{
scrap_uploads++;
for (texnum=0 ; texnum<MAX_SCRAPS ; texnum++)
- {
- glBindTexture(GL_TEXTURE_2D, scrap_texnum + texnum);
- GL_Upload8 (scrap_texels[texnum], BLOCK_WIDTH, BLOCK_HEIGHT, false, true);
- }
+ scraptexnum[texnum] = GL_LoadTexture (va("scrapslot%d", texnum), BLOCK_WIDTH, BLOCK_HEIGHT, scrap_texels[texnum], false, true, 1);
scrap_dirty = false;
}
+*/
//=============================================================================
/* Support Routines */
int pic_texels;
int pic_count;
-int GL_LoadPicTexture (qpic_t *pic);
+extern int GL_LoadPicTexture (qpic_t *pic);
qpic_t *Draw_PicFromWad (char *name)
{
gl = (glpic_t *)p->data;
// load little ones into the scrap
+ /*
if (p->width < 64 && p->height < 64)
{
int x, y;
for (i=0 ; i<p->height ; i++)
for (j=0 ; j<p->width ; j++, k++)
scrap_texels[texnum][(y+i)*BLOCK_WIDTH + x + j] = p->data[k];
- texnum += scrap_texnum;
- gl->texnum = texnum;
+ if (!scraptexnum[texnum])
+ scraptexnum[texnum] = GL_LoadTexture (va("scrapslot%d", texnum), BLOCK_WIDTH, BLOCK_HEIGHT, scrap_texels[texnum], false, true, 1);
+ gl->texnum = scraptexnum[texnum];
gl->sl = (x+0.01)/(float)BLOCK_WIDTH;
gl->sh = (x+p->width-0.01)/(float)BLOCK_WIDTH;
gl->tl = (y+0.01)/(float)BLOCK_WIDTH;
pic_count++;
pic_texels += p->width*p->height;
- // LordHavoc: LINEAR interpolation
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
else
{
+ */
gl->texnum = GL_LoadPicTexture (p);
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
- // LordHavoc: LINEAR interpolation
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); //NEAREST);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); //NEAREST);
- }
+ //}
return p;
}
pic->pic.height = dat->height;
gl = (glpic_t *)pic->pic.data;
- gl->texnum = GL_LoadPicTexture (dat);
+ gl->texnum = loadtextureimage(path, 0, 0, false, false);
+ if (!gl->texnum)
+ gl->texnum = GL_LoadPicTexture (dat);
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
return &pic->pic;
}
-
-void Draw_CharToConback (int num, byte *dest)
-{
- int row, col;
- byte *source;
- int drawline;
- int x;
-
- row = num>>4;
- col = num&15;
- source = draw_chars + (row<<10) + (col<<3);
-
- drawline = 8;
-
- while (drawline--)
- {
- for (x=0 ; x<8 ; x++)
- if (source[x] != 255)
- dest[x] = 0x60 + source[x];
- source += 128;
- dest += 320;
- }
-
-}
-
-typedef struct
-{
- char *name;
- int minimize, maximize;
-} glmode_t;
-
-glmode_t modes[] = {
- {"GL_NEAREST", GL_NEAREST, GL_NEAREST},
- {"GL_LINEAR", GL_LINEAR, GL_LINEAR},
- {"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
- {"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
- {"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
- {"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
-};
+extern void LoadSky_f(void);
/*
===============
-Draw_TextureMode_f
+Draw_Init
===============
*/
-void Draw_TextureMode_f (void)
+void rmain_registercvars();
+extern int buildnumber;
+
+void gl_draw_start()
{
int i;
- gltexture_t *glt;
- if (Cmd_Argc() == 1)
+ char_texture = loadtextureimage ("conchars", 0, 0, false, false);
+ if (!char_texture)
{
- for (i=0 ; i< 6 ; i++)
- if (gl_filter_min == modes[i].minimize)
- {
- Con_Printf ("%s\n", modes[i].name);
- return;
- }
- Con_Printf ("current filter is unknown???\n");
- return;
- }
+ draw_chars = W_GetLumpName ("conchars");
+ for (i=0 ; i<128*128 ; i++)
+ if (draw_chars[i] == 0)
+ draw_chars[i] = 255; // proper transparent color
- for (i=0 ; i< 6 ; i++)
- {
- if (!Q_strcasecmp (modes[i].name, Cmd_Argv(1) ) )
- break;
- }
- if (i == 6)
- {
- Con_Printf ("bad filter name\n");
- return;
+ // now turn them into textures
+ char_texture = GL_LoadTexture ("charset", 128, 128, draw_chars, false, true, 1);
}
- gl_filter_min = modes[i].minimize;
- gl_filter_max = modes[i].maximize;
+ conbacktexnum = loadtextureimage("gfx/conback", 0, 0, false, false);
- // change all the existing mipmap texture objects
- for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
- {
- if (glt->mipmap)
- {
- glBindTexture(GL_TEXTURE_2D, glt->texnum);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
- }
- }
+// memset(scraptexnum, 0, sizeof(scraptexnum));
+
+ // get the other pics we need
+ draw_disc = Draw_PicFromWad ("disc");
}
-extern void LoadSky_f(void);
+void gl_draw_shutdown()
+{
+}
-extern char *QSG_EXTENSIONS;
+char engineversion[40];
+int engineversionx, engineversiony;
-/*
-===============
-Draw_Init
-===============
-*/
-void rmain_registercvars();
-extern int buildnumber;
-void Draw_Init (void)
+extern void GL_Textures_Init();
+void GL_Draw_Init (void)
{
- int i;
- qpic_t *cb;
- byte *dest;
- int x, y;
- char ver[40];
- glpic_t *gl;
- int start;
-
+ int i;
Cvar_RegisterVariable (&qsg_version);
- Cvar_RegisterVariable (&gl_max_size);
- Cvar_RegisterVariable (&gl_picmip);
- Cvar_RegisterVariable (&gl_conalpha);
- Cvar_RegisterVariable (&gl_lerpimages);
-
- // 3dfx can only handle 256 wide textures
- if (!Q_strncasecmp ((char *)gl_renderer, "3dfx",4) ||
- strstr((char *)gl_renderer, "Glide"))
- Cvar_Set ("gl_max_size", "256");
-
- Cmd_AddCommand ("gl_texturemode", &Draw_TextureMode_f);
+ Cvar_RegisterVariable (&scr_conalpha);
Cmd_AddCommand ("loadsky", &LoadSky_f);
- // load the console background and the charset
- // by hand, because we need to write the version
- // string into the background before turning
- // it into a texture
- draw_chars = W_GetLumpName ("conchars");
- for (i=0 ; i<256*64 ; i++)
- if (draw_chars[i] == 0)
- draw_chars[i] = 255; // proper transparent color
-
- // now turn them into textures
- char_texture = GL_LoadTexture ("charset", 128, 128, draw_chars, false, true, 1);
-
- start = Hunk_LowMark();
-
- cb = (qpic_t *)COM_LoadMallocFile ("gfx/conback.lmp", false);
- if (!cb)
- Sys_Error ("Couldn't load gfx/conback.lmp");
- SwapPic (cb);
-
- // hack the version number directly into the pic
-#ifdef NEHAHRA
-#if defined(__linux__)
- sprintf (ver, "DPNehahra Linux GL %.2f build %5i", (float) VERSION, buildnumber);
-#elif defined(WIN32)
- sprintf (ver, "DPNehahra Windows GL %.2f build %5i", (float) VERSION, buildnumber);
-#else
- sprintf (ver, "DPNehahra Unknown GL %.2f build %5i", (float) VERSION, buildnumber);
-#endif
-#else
#if defined(__linux__)
- sprintf (ver, "DarkPlaces Linux GL %.2f build %5i", (float) VERSION, buildnumber);
+ sprintf (engineversion, "DarkPlaces Linux GL %.2f build %3i", (float) VERSION, buildnumber);
#elif defined(WIN32)
- sprintf (ver, "DarkPlaces Windows GL %.2f build %5i", (float) VERSION, buildnumber);
+ sprintf (engineversion, "DarkPlaces Windows GL %.2f build %3i", (float) VERSION, buildnumber);
#else
- sprintf (ver, "DarkPlaces Unknown GL %.2f build %5i", (float) VERSION, buildnumber);
+ sprintf (engineversion, "DarkPlaces Unknown GL %.2f build %3i", (float) VERSION, buildnumber);
#endif
-#endif
- dest = cb->data + 320*186 + 320 - 11 - 8*strlen(ver);
- y = strlen(ver);
- for (x=0 ; x<y ; x++)
- Draw_CharToConback (ver[x], dest+(x<<3));
+ for (i = 0;i < 40 && engineversion[i];i++)
+ engineversion[i] += 0x80; // shift to orange
+ engineversionx = vid.width - strlen(engineversion) * 8 - 8;
+ engineversiony = vid.height - 8;
- gl = (glpic_t *)conback->data;
- gl->texnum = GL_LoadTexture ("conback", cb->width, cb->height, cb->data, false, false, 1);
- gl->sl = 0;
- gl->sh = 1;
- gl->tl = 0;
- gl->th = 1;
- conback->width = vid.width;
- conback->height = vid.height;
-
- // free loaded console
- free(cb);
-
- // save a texture slot for translated picture
- translate_texture = texture_extension_number++;
-
- // save slots for scraps
- scrap_texnum = texture_extension_number;
- texture_extension_number += MAX_SCRAPS;
-
- //
- // get the other pics we need
- //
- draw_disc = Draw_PicFromWad ("disc");
-
- rmain_registercvars();
+ GL_Textures_Init();
+ R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown);
}
-
/*
================
Draw_Character
fcol = col*0.0625;
size = 0.0625;
+ if (!r_render.value)
+ return;
glBindTexture(GL_TEXTURE_2D, char_texture);
// LordHavoc: NEAREST mode on text if not scaling up
- if ((int) vid.width < glwidth)
+ if (glwidth < (int) vid.width)
{
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
{
int num;
float frow, fcol;
+ if (!r_render.value)
+ return;
if (y <= -8 || y >= (int) vid.height || x >= (int) vid.width || *str == 0) // completely offscreen or no text to print
return;
if (maxlen < 1)
glBindTexture(GL_TEXTURE_2D, char_texture);
// LordHavoc: NEAREST mode on text if not scaling up
- if ((int) vid.width < glwidth)
+ if (glwidth < (int) vid.width)
{
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
{
frow = (float) ((int) num >> 4)*0.0625;
fcol = (float) ((int) num & 15)*0.0625;
- glTexCoord2f (fcol, frow);
- glVertex2f (x, y);
- glTexCoord2f (fcol + 0.0625, frow);
- glVertex2f (x+8, y);
- glTexCoord2f (fcol + 0.0625, frow + 0.0625);
- glVertex2f (x+8, y+8);
- glTexCoord2f (fcol, frow + 0.0625);
- glVertex2f (x, y+8);
+ glTexCoord2f (fcol , frow );glVertex2f (x, y);
+ glTexCoord2f (fcol + 0.0625, frow );glVertex2f (x+8, y);
+ glTexCoord2f (fcol + 0.0625, frow + 0.0625);glVertex2f (x+8, y+8);
+ glTexCoord2f (fcol , frow + 0.0625);glVertex2f (x, y+8);
}
x += 8;
}
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
+void Draw_GenericPic (int texnum, float red, float green, float blue, float alpha, int x, int y, int width, int height)
+{
+ if (!r_render.value)
+ return;
+ glColor4f(red,green,blue,alpha);
+ glBindTexture(GL_TEXTURE_2D, texnum);
+ glBegin (GL_QUADS);
+ glTexCoord2f (0, 0);glVertex2f (x, y);
+ glTexCoord2f (1, 0);glVertex2f (x+width, y);
+ glTexCoord2f (1, 1);glVertex2f (x+width, y+height);
+ glTexCoord2f (0, 1);glVertex2f (x, y+height);
+ glEnd ();
+}
+
/*
=============
Draw_AlphaPic
{
glpic_t *gl;
- if (scrap_dirty)
- Scrap_Upload ();
+// if (scrap_dirty)
+// Scrap_Upload ();
gl = (glpic_t *)pic->data;
-// glDisable(GL_ALPHA_TEST);
-// glEnable (GL_BLEND);
-// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-// glCullFace(GL_FRONT);
- glColor4f(0.8,0.8,0.8,alpha);
+ if (!r_render.value)
+ return;
+ glColor4f(1,1,1,alpha);
glBindTexture(GL_TEXTURE_2D, gl->texnum);
-// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBegin (GL_QUADS);
- glTexCoord2f (gl->sl, gl->tl);
- glVertex2f (x, y);
- glTexCoord2f (gl->sh, gl->tl);
- glVertex2f (x+pic->width, y);
- glTexCoord2f (gl->sh, gl->th);
- glVertex2f (x+pic->width, y+pic->height);
- glTexCoord2f (gl->sl, gl->th);
- glVertex2f (x, y+pic->height);
+ glTexCoord2f (gl->sl, gl->tl);glVertex2f (x, y);
+ glTexCoord2f (gl->sh, gl->tl);glVertex2f (x+pic->width, y);
+ glTexCoord2f (gl->sh, gl->th);glVertex2f (x+pic->width, y+pic->height);
+ glTexCoord2f (gl->sl, gl->th);glVertex2f (x, y+pic->height);
glEnd ();
- glColor3f(1,1,1);
-// glEnable(GL_ALPHA_TEST);
-// glDisable (GL_BLEND);
}
{
glpic_t *gl;
- if (scrap_dirty)
- Scrap_Upload ();
+// if (scrap_dirty)
+// Scrap_Upload ();
gl = (glpic_t *)pic->data;
- glColor3f(0.8,0.8,0.8);
+ if (!r_render.value)
+ return;
+ glColor3f(1,1,1);
glBindTexture(GL_TEXTURE_2D, gl->texnum);
glBegin (GL_QUADS);
- glTexCoord2f (gl->sl, gl->tl);
- glVertex2f (x, y);
- glTexCoord2f (gl->sh, gl->tl);
- glVertex2f (x+pic->width, y);
- glTexCoord2f (gl->sh, gl->th);
- glVertex2f (x+pic->width, y+pic->height);
- glTexCoord2f (gl->sl, gl->th);
- glVertex2f (x, y+pic->height);
+ glTexCoord2f (gl->sl, gl->tl);glVertex2f (x, y);
+ glTexCoord2f (gl->sh, gl->tl);glVertex2f (x+pic->width, y);
+ glTexCoord2f (gl->sh, gl->th);glVertex2f (x+pic->width, y+pic->height);
+ glTexCoord2f (gl->sl, gl->th);glVertex2f (x, y+pic->height);
glEnd ();
}
/*
=============
-Draw_TransPic
-=============
-*/
-void Draw_TransPic (int x, int y, qpic_t *pic)
-{
- if (x < 0 || (unsigned)(x + pic->width) > vid.width || y < 0 || (unsigned)(y + pic->height) > vid.height)
- Sys_Error ("Draw_TransPic: bad coordinates");
-
-// glEnable(GL_BLEND);
-// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-// glDisable(GL_ALPHA_TEST);
- Draw_Pic (x, y, pic);
-// glDisable(GL_BLEND);
-}
-
-
-/*
-=============
-Draw_TransPicTranslate
+Draw_PicTranslate
Only used for the player color selection menu
=============
*/
-void Draw_TransPicTranslate (int x, int y, qpic_t *pic, byte *translation)
+void Draw_PicTranslate (int x, int y, qpic_t *pic, byte *translation)
{
- int v, u, c;
- unsigned trans[64*64], *dest;
- byte *src;
- int p;
-
- glBindTexture(GL_TEXTURE_2D, translate_texture);
+ int i, c;
+ byte *trans, *src, *dest;
c = pic->width * pic->height;
+ src = menuplyr_pixels;
+ dest = trans = malloc(c);
+ for (i = 0;i < c;i++)
+ *dest++ = translation[*src++];
- dest = trans;
- for (v=0 ; v<64 ; v++, dest += 64)
- {
- src = &menuplyr_pixels[ ((v*pic->height)>>6) *pic->width];
- for (u=0 ; u<64 ; u++)
- {
- p = src[(u*pic->width)>>6];
- if (p == 255)
- dest[u] = p;
- else
- dest[u] = d_8to24table[translation[p]];
- }
- }
-
- glTexImage2D (GL_TEXTURE_2D, 0, 4, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, trans);
-
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ c = GL_LoadTexture ("translatedplayerpic", pic->width, pic->height, trans, false, true, 1);
+ free(trans);
- glColor3f(0.8,0.8,0.8);
+ if (!r_render.value)
+ return;
+ Draw_GenericPic (c, 1,1,1,1, x, y, pic->width, pic->height);
+ /*
+ glBindTexture(GL_TEXTURE_2D, c);
+ glColor3f(1,1,1);
glBegin (GL_QUADS);
- glTexCoord2f (0, 0);
- glVertex2f (x, y);
- glTexCoord2f (1, 0);
- glVertex2f (x+pic->width, y);
- glTexCoord2f (1, 1);
- glVertex2f (x+pic->width, y+pic->height);
- glTexCoord2f (0, 1);
- glVertex2f (x, y+pic->height);
+ glTexCoord2f (0, 0);glVertex2f (x, y);
+ glTexCoord2f (1, 0);glVertex2f (x+pic->width, y);
+ glTexCoord2f (1, 1);glVertex2f (x+pic->width, y+pic->height);
+ glTexCoord2f (0, 1);glVertex2f (x, y+pic->height);
glEnd ();
+ */
}
*/
void Draw_ConsoleBackground (int lines)
{
- // LordHavoc: changed alpha
- //int y = (vid.height >> 1);
-
- if (lines >= (int) vid.height)
- Draw_Pic(0, lines - vid.height, conback);
- else
- Draw_AlphaPic (0, lines - vid.height, conback, gl_conalpha.value*lines/vid.height);
- // Draw_AlphaPic (0, lines - vid.height, conback, (float)(1.2 * lines)/y);
+ Draw_GenericPic (conbacktexnum, 1,1,1,scr_conalpha.value*lines/vid.height, 0, lines - vid.height, vid.width, vid.height);
+ // LordHavoc: draw version
+ Draw_String(engineversionx, lines - vid.height + engineversiony, engineversion, 9999);
}
/*
*/
void Draw_Fill (int x, int y, int w, int h, int c)
{
+ if (!r_render.value)
+ return;
glDisable (GL_TEXTURE_2D);
glColor3f (host_basepal[c*3]/255.0, host_basepal[c*3+1]/255.0, host_basepal[c*3+2]/255.0);
*/
void GL_Set2D (void)
{
+ if (!r_render.value)
+ return;
glViewport (glx, gly, glwidth, glheight);
glMatrixMode(GL_PROJECTION);
glDisable (GL_DEPTH_TEST);
glDisable (GL_CULL_FACE);
- glEnable (GL_BLEND); // was Disable
-// glEnable (GL_ALPHA_TEST);
+ glEnable (GL_BLEND);
glDisable (GL_ALPHA_TEST);
glEnable(GL_TEXTURE_2D);
int i;
for (i = 0;i < SHOWLMP_MAXLABELS;i++)
if (showlmp[i].isactive)
- Draw_TransPic(showlmp[i].x, showlmp[i].y, Draw_CachePic(showlmp[i].pic));
+ Draw_Pic(showlmp[i].x, showlmp[i].y, Draw_CachePic(showlmp[i].pic));
}
void SHOWLMP_clear()
for (i = 0;i < SHOWLMP_MAXLABELS;i++)
showlmp[i].isactive = false;
}
-
-//====================================================================
-
-/*
-================
-GL_FindTexture
-================
-*/
-int GL_FindTexture (char *identifier)
-{
- int i;
- gltexture_t *glt;
-
- for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
- {
- if (!strcmp (identifier, glt->identifier))
- return gltextures[i].texnum;
- }
-
- return -1;
-}
-
-extern byte qgamma[];
-
-// LordHavoc: gamma correction and improved resampling
-void GL_ResampleTextureLerpLine (byte *in, byte *out, int inwidth, int outwidth)
-{
- int j, xi, oldx = 0;
- float f, fstep, l1, l2;
- fstep = (float) inwidth/outwidth;
- for (j = 0,f = 0;j < outwidth;j++, f += fstep)
- {
- xi = (int) f;
- if (xi != oldx)
- {
- in += (xi - oldx) * 4;
- oldx = xi;
- }
- if (xi < (inwidth-1))
- {
- l2 = f - xi;
- l1 = 1 - l2;
- *out++ = qgamma[(byte) (in[0] * l1 + in[4] * l2)];
- *out++ = qgamma[(byte) (in[1] * l1 + in[5] * l2)];
- *out++ = qgamma[(byte) (in[2] * l1 + in[6] * l2)];
- *out++ = (byte) (in[3] * l1 + in[7] * l2) ;
- }
- else // last pixel of the line has no pixel to lerp to
- {
- *out++ = qgamma[in[0]];
- *out++ = qgamma[in[1]];
- *out++ = qgamma[in[2]];
- *out++ = in[3] ;
- }
- }
-}
-
-/*
-================
-GL_ResampleTexture
-================
-*/
-void GL_ResampleTexture (void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
-{
- // LordHavoc: gamma correction and greatly improved resampling
- if (gl_lerpimages.value)
- {
- int i, j, yi, oldy;
- byte *inrow, *out, *row1, *row2;
- float f, fstep, l1, l2;
- out = outdata;
- fstep = (float) inheight/outheight;
-
- row1 = malloc(outwidth*4);
- row2 = malloc(outwidth*4);
- inrow = indata;
- oldy = 0;
- GL_ResampleTextureLerpLine (inrow, row1, inwidth, outwidth);
- GL_ResampleTextureLerpLine (inrow + inwidth*4, row2, inwidth, outwidth);
- for (i = 0, f = 0;i < outheight;i++,f += fstep)
- {
- yi = (int) f;
- if (yi != oldy)
- {
- inrow = (byte *)((int)indata + inwidth*4*yi);
- if (yi == oldy+1)
- memcpy(row1, row2, outwidth*4);
- else
- GL_ResampleTextureLerpLine (inrow, row1, inwidth, outwidth);
- if (yi < (inheight-1))
- GL_ResampleTextureLerpLine (inrow + inwidth*4, row2, inwidth, outwidth);
- else
- memcpy(row2, row1, outwidth*4);
- oldy = yi;
- }
- if (yi < (inheight-1))
- {
- l2 = f - yi;
- l1 = 1 - l2;
- for (j = 0;j < outwidth;j++)
- {
- *out++ = (byte) (*row1++ * l1 + *row2++ * l2);
- *out++ = (byte) (*row1++ * l1 + *row2++ * l2);
- *out++ = (byte) (*row1++ * l1 + *row2++ * l2);
- *out++ = (byte) (*row1++ * l1 + *row2++ * l2);
- }
- row1 -= outwidth*4;
- row2 -= outwidth*4;
- }
- else // last line has no pixels to lerp to
- {
- for (j = 0;j < outwidth;j++)
- {
- *out++ = *row1++;
- *out++ = *row1++;
- *out++ = *row1++;
- *out++ = *row1++;
- }
- row1 -= outwidth*4;
- }
- }
- free(row1);
- free(row2);
- }
- else
- {
- int i, j;
- unsigned frac, fracstep;
- byte *inrow, *out, *inpix;
- out = outdata;
-
- fracstep = inwidth*0x10000/outwidth;
- for (i=0 ; i<outheight ; i++)
- {
- inrow = (byte *)indata + inwidth*(i*inheight/outheight)*4;
- frac = fracstep >> 1;
- for (j=0 ; j<outwidth ; j+=4)
- {
- inpix = inrow + ((frac >> 14) & ~3);*out++ = qgamma[*inpix++];*out++ = qgamma[*inpix++];*out++ = qgamma[*inpix++];*out++ = *inpix++ ;frac += fracstep;
- inpix = inrow + ((frac >> 14) & ~3);*out++ = qgamma[*inpix++];*out++ = qgamma[*inpix++];*out++ = qgamma[*inpix++];*out++ = *inpix++ ;frac += fracstep;
- inpix = inrow + ((frac >> 14) & ~3);*out++ = qgamma[*inpix++];*out++ = qgamma[*inpix++];*out++ = qgamma[*inpix++];*out++ = *inpix++ ;frac += fracstep;
- inpix = inrow + ((frac >> 14) & ~3);*out++ = qgamma[*inpix++];*out++ = qgamma[*inpix++];*out++ = qgamma[*inpix++];*out++ = *inpix++ ;frac += fracstep;
- }
- }
- }
-}
-
-/*
-================
-GL_Resample8BitTexture -- JACK
-================
-*/
-void GL_Resample8BitTexture (unsigned char *in, int inwidth, int inheight, unsigned char *out, int outwidth, int outheight)
-{
- int i, j;
- unsigned char *inrow;
- unsigned frac, fracstep;
-
- fracstep = inwidth*0x10000/outwidth;
- for (i=0 ; i<outheight ; i++, out += outwidth)
- {
- inrow = in + inwidth*(i*inheight/outheight);
- frac = fracstep >> 1;
- for (j=0 ; j<outwidth ; j+=4)
- {
- out[j] = inrow[frac>>16];
- frac += fracstep;
- out[j+1] = inrow[frac>>16];
- frac += fracstep;
- out[j+2] = inrow[frac>>16];
- frac += fracstep;
- out[j+3] = inrow[frac>>16];
- frac += fracstep;
- }
- }
-}
-
-
-/*
-================
-GL_MipMap
-
-Operates in place, quartering the size of the texture
-================
-*/
-void GL_MipMap (byte *in, int width, int height)
-{
- int i, j;
- byte *out;
-
- width <<=2;
- height >>= 1;
- out = in;
- for (i=0 ; i<height ; i++, in+=width)
- {
- for (j=0 ; j<width ; j+=8, out+=4, in+=8)
- {
- out[0] = (in[0] + in[4] + in[width+0] + in[width+4])>>2;
- out[1] = (in[1] + in[5] + in[width+1] + in[width+5])>>2;
- out[2] = (in[2] + in[6] + in[width+2] + in[width+6])>>2;
- out[3] = (in[3] + in[7] + in[width+3] + in[width+7])>>2;
- }
- }
-}
-
-/*
-================
-GL_MipMap8Bit
-
-Mipping for 8 bit textures
-================
-*/
-void GL_MipMap8Bit (byte *in, int width, int height)
-{
- int i, j;
- unsigned short r,g,b;
- byte *out, *at1, *at2, *at3, *at4;
-
- height >>= 1;
- out = in;
- for (i=0 ; i<height ; i++, in+=width)
- {
- for (j=0 ; j<width ; j+=2, out+=1, in+=2)
- {
- at1 = (byte *) (d_8to24table + in[0]);
- at2 = (byte *) (d_8to24table + in[1]);
- at3 = (byte *) (d_8to24table + in[width+0]);
- at4 = (byte *) (d_8to24table + in[width+1]);
-
- r = (at1[0]+at2[0]+at3[0]+at4[0]); r>>=5;
- g = (at1[1]+at2[1]+at3[1]+at4[1]); g>>=5;
- b = (at1[2]+at2[2]+at3[2]+at4[2]); b>>=5;
-
- out[0] = d_15to8table[(r<<0) + (g<<5) + (b<<10)];
- }
- }
-}
-
-/*
-===============
-GL_Upload32
-===============
-*/
-void GL_Upload32 (void *data, int width, int height, qboolean mipmap, qboolean alpha)
-{
- int samples, scaled_width, scaled_height, i;
- byte *in, *out, *scaled;
-
- for (scaled_width = 1 ; scaled_width < width ; scaled_width<<=1)
- ;
- for (scaled_height = 1 ; scaled_height < height ; scaled_height<<=1)
- ;
-
- scaled_width >>= (int)gl_picmip.value;
- scaled_height >>= (int)gl_picmip.value;
-
- if (scaled_width > gl_max_size.value)
- scaled_width = gl_max_size.value;
- if (scaled_height > gl_max_size.value)
- scaled_height = gl_max_size.value;
-
- if (alpha)
- {
- alpha = false;
- in = data;
- for (i = 3;i < width*height*4;i += 4)
- if (in[i] != 255)
- {
- alpha = true;
- break;
- }
- }
-
- samples = alpha ? gl_alpha_format : gl_solid_format;
-
-#if 0
- if (mipmap)
- gluBuild2DMipmaps (GL_TEXTURE_2D, samples, width, height, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
- else if (scaled_width == width && scaled_height == height)
- glTexImage2D (GL_TEXTURE_2D, 0, samples, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
- else
- {
- gluScaleImage (GL_RGBA, width, height, GL_UNSIGNED_BYTE, scaled, scaled_width, scaled_height, GL_UNSIGNED_BYTE, scaled);
- glTexImage2D (GL_TEXTURE_2D, 0, samples, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
- }
-#else
-texels += scaled_width * scaled_height;
-
- scaled = malloc(scaled_width*scaled_height*4);
- if (scaled_width == width && scaled_height == height)
- {
- // LordHavoc: gamma correct while copying
- in = (byte *)data;
- out = (byte *)scaled;
- for (i = 0;i < width*height;i++)
- {
- *out++ = qgamma[*in++];
- *out++ = qgamma[*in++];
- *out++ = qgamma[*in++];
- *out++ = *in++;
- }
- }
- else
- GL_ResampleTexture (data, width, height, scaled, scaled_width, scaled_height);
-
- glTexImage2D (GL_TEXTURE_2D, 0, samples, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
- if (mipmap)
- {
- int miplevel;
-
- miplevel = 0;
- while (scaled_width > 1 || scaled_height > 1)
- {
- GL_MipMap ((byte *)scaled, scaled_width, scaled_height);
- scaled_width >>= 1;
- scaled_height >>= 1;
- if (scaled_width < 1)
- scaled_width = 1;
- if (scaled_height < 1)
- scaled_height = 1;
- miplevel++;
- glTexImage2D (GL_TEXTURE_2D, miplevel, samples, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
- }
- }
-#endif
-
-
- if (mipmap)
- {
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
- }
- else
- {
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
- }
- free(scaled);
-}
-
-void GL_Upload8_EXT (byte *data, int width, int height, qboolean mipmap)
-{
- int scaled_width, scaled_height;
- byte *scaled = NULL;
-
- for (scaled_width = 1 ; scaled_width < width ; scaled_width<<=1)
- ;
- for (scaled_height = 1 ; scaled_height < height ; scaled_height<<=1)
- ;
-
- scaled_width >>= (int)gl_picmip.value;
- scaled_height >>= (int)gl_picmip.value;
-
- if (scaled_width > gl_max_size.value)
- scaled_width = gl_max_size.value;
- if (scaled_height > gl_max_size.value)
- scaled_height = gl_max_size.value;
-
- texels += scaled_width * scaled_height;
-
- if (scaled_width == width && scaled_height == height)
- {
- if (!mipmap)
- {
- glTexImage2D (GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, scaled_width, scaled_height, 0, GL_COLOR_INDEX , GL_UNSIGNED_BYTE, data);
- goto done;
- }
- scaled = malloc(scaled_width*scaled_height*4);
- memcpy (scaled, data, width*height);
- }
- else
- {
- scaled = malloc(scaled_width*scaled_height*4);
- GL_Resample8BitTexture (data, width, height, (void*) scaled, scaled_width, scaled_height);
- }
-
- glTexImage2D (GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, scaled_width, scaled_height, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, scaled);
- if (mipmap)
- {
- int miplevel;
-
- miplevel = 0;
- while (scaled_width > 1 || scaled_height > 1)
- {
- GL_MipMap8Bit ((byte *)scaled, scaled_width, scaled_height);
- scaled_width >>= 1;
- scaled_height >>= 1;
- if (scaled_width < 1)
- scaled_width = 1;
- if (scaled_height < 1)
- scaled_height = 1;
- miplevel++;
- glTexImage2D (GL_TEXTURE_2D, miplevel, GL_COLOR_INDEX8_EXT, scaled_width, scaled_height, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, scaled);
- }
- }
-done: ;
-
-
- if (mipmap)
- {
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
- }
- else
- {
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
- }
- free(scaled);
-}
-
-qboolean VID_Is8bit();
-
-/*
-===============
-GL_Upload8
-===============
-*/
-void GL_Upload8 (byte *data, int width, int height, qboolean mipmap, qboolean alpha)
-{
- static unsigned *trans;
- int i, s;
- qboolean noalpha;
- int p;
- byte *indata;
- int *outdata;
-
- s = width*height;
- trans = malloc(s*4);
- // if there are no transparent pixels, make it a 3 component
- // texture even if it was specified as otherwise
- if (alpha)
- {
- noalpha = true;
- for (i=0 ; i<s ; i++)
- {
- p = data[i];
- if (p != 255)
- trans[i] = d_8to24table[p];
- else
- {
- trans[i] = 0; // force to black
- noalpha = false;
- }
- }
-
- if (noalpha)
- {
- if (VID_Is8bit() && (data!=scrap_texels[0]))
- {
- GL_Upload8_EXT (data, width, height, mipmap);
- free(trans);
- return;
- }
- alpha = false;
- }
- }
- else
- {
- // LordHavoc: dodge the copy if it will be uploaded as 8bit
- if (VID_Is8bit() && (data!=scrap_texels[0]))
- {
- GL_Upload8_EXT (data, width, height, mipmap);
- free(trans);
- return;
- }
- //if (s&3)
- // Sys_Error ("GL_Upload8: s&3");
- indata = data;
- outdata = trans;
- if (s&1)
- *outdata++ = d_8to24table[*indata++];
- if (s&2)
- {
- *outdata++ = d_8to24table[*indata++];
- *outdata++ = d_8to24table[*indata++];
- }
- for (i = 0;i < s;i+=4)
- {
- *outdata++ = d_8to24table[*indata++];
- *outdata++ = d_8to24table[*indata++];
- *outdata++ = d_8to24table[*indata++];
- *outdata++ = d_8to24table[*indata++];
- }
- }
-
- GL_Upload32 (trans, width, height, mipmap, alpha);
- free(trans);
-}
-
-/*
-================
-GL_LoadTexture
-================
-*/
-int GL_LoadTexture (char *identifier, int width, int height, byte *data, qboolean mipmap, qboolean alpha, int bytesperpixel)
-{
- unsigned short crc;
- int i;
- gltexture_t *glt;
-
- if (isDedicated)
- return 1;
-
- // LordHavoc: do a CRC to confirm the data really is the same as previous occurances.
- crc = CRC_Block(data, width*height*bytesperpixel);
- // see if the texture is already present
- if (identifier[0])
- {
- for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
- {
- if (!strcmp (identifier, glt->identifier))
- {
- // LordHavoc: everyone hates cache mismatchs, so I fixed it
- if (crc != glt->crc || width != glt->width || height != glt->height)
- {
- Con_DPrintf("GL_LoadTexture: cache mismatch, replacing old texture\n");
- goto GL_LoadTexture_setup; // drop out with glt pointing to the texture to replace
- //Sys_Error ("GL_LoadTexture: cache mismatch");
- }
- if ((gl_lerpimages.value != 0) != glt->lerped)
- goto GL_LoadTexture_setup; // drop out with glt pointing to the texture to replace
- return glt->texnum;
- }
- }
- }
- // LordHavoc: although this could be an else condition as it was in the original id code,
- // it is more clear this way
- // LordHavoc: check if there are still slots available
- if (numgltextures >= MAX_GLTEXTURES)
- Sys_Error ("GL_LoadTexture: ran out of texture slots (%d)\n", MAX_GLTEXTURES);
- glt = &gltextures[numgltextures++];
-
- strcpy (glt->identifier, identifier);
- glt->texnum = texture_extension_number;
- texture_extension_number++;
-// LordHavoc: label to drop out of the loop into the setup code
-GL_LoadTexture_setup:
- glt->crc = crc; // LordHavoc: used to verify textures are identical
- glt->width = width;
- glt->height = height;
- glt->mipmap = mipmap;
- glt->bytesperpixel = bytesperpixel;
- glt->lerped = gl_lerpimages.value != 0;
-
- glBindTexture(GL_TEXTURE_2D, glt->texnum);
-
- if (bytesperpixel == 1) // 8bit
- GL_Upload8 (data, width, height, mipmap, alpha);
- else // 32bit
- GL_Upload32 (data, width, height, mipmap, true);
- glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-
- return glt->texnum;
-}
-
-/*
-================
-GL_LoadPicTexture
-================
-*/
-int GL_LoadPicTexture (qpic_t *pic)
-{
- return GL_LoadTexture ("", pic->width, pic->height, pic->data, false, true, 1);
-}
-
-int GL_GetTextureSlots (int count)
-{
- gltexture_t *glt, *first;
-
- first = glt = &gltextures[numgltextures];
- while (count--)
- {
- glt->identifier[0] = 0;
- glt->texnum = texture_extension_number++;
- glt->crc = 0;
- glt->width = 0;
- glt->height = 0;
- glt->bytesperpixel = 0;
- glt++;
- numgltextures++;
- }
- return first->texnum;
-}
projects / xonotic / darkplaces.git / blobdiff