mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-26 22:31:05 +00:00
Cleanup of gl_draw.c and beginnings of work for user-specifiable texture format/quality (monochrome quake anybody? :)
This commit is contained in:
Ragnvald Maartmann-Moe IV
parent
3ac2bc72aa
commit
1b8928de00
3 changed files with 592 additions and 496 deletions
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@ -260,12 +260,12 @@ qw_client_x11_DEPENDENCIES= $(CLIENT_LIB_DEPS)
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#
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#
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# ... Common stuff
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# ... Common stuff
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#
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#
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ogl_SOURCES= fractalnoise.c gl_draw.c gl_dyn_fires.c gl_dyn_part.c \
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ogl_SOURCES= fractalnoise.c gl_textures.c gl_draw.c gl_dyn_fires.c \
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gl_dyn_textures.c gl_mesh.c gl_ngraph.c r_efrag.c \
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gl_dyn_part.c gl_dyn_textures.c gl_mesh.c gl_ngraph.c \
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gl_rlight.c gl_rmain.c gl_rmisc.c gl_rsurf.c gl_screen.c \
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r_efrag.c gl_rlight.c gl_rmain.c gl_rmisc.c gl_rsurf.c \
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gl_skin.c gl_sky.c gl_sky_clip.c gl_view.c gl_warp.c \
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gl_screen.c gl_skin.c gl_sky.c gl_sky_clip.c gl_view.c \
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gl_model_alias.c gl_model_brush.c gl_model_fullbright.c \
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gl_warp.c gl_model_alias.c gl_model_brush.c \
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gl_model_sprite.c qfgl_ext.c
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gl_model_fullbright.c gl_model_sprite.c qfgl_ext.c
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#
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#
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# ... 3Dfx Voodoo 1 and 2 SVGAlib-based console GL
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# ... 3Dfx Voodoo 1 and 2 SVGAlib-based console GL
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@ -40,17 +40,14 @@
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#include "cmd.h"
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#include "cmd.h"
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#include "console.h"
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#include "console.h"
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#include "crc.h"
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#include "draw.h"
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#include "draw.h"
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#include "glquake.h"
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#include "glquake.h"
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#include "sbar.h"
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#include "sbar.h"
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#include "screen.h"
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#include "screen.h"
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#include "sys.h"
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#include "sys.h"
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static int GL_LoadPicTexture (qpic_t *pic, qboolean alpha);
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extern byte *host_basepal;
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extern byte *host_basepal;
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extern unsigned char d_15to8table[65536];
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extern cvar_t *crosshair, *cl_crossx, *cl_crossy, *crosshaircolor,
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extern cvar_t *crosshair, *cl_crossx, *cl_crossy, *crosshaircolor,
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*gl_lightmap_components;
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*gl_lightmap_components;
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@ -82,34 +79,12 @@ static byte cs_data[64] = {
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
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};
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};
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typedef struct {
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typedef struct {
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int texnum;
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int texnum;
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int bytesperpixel;
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int bytesperpixel;
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float sl, tl, sh, th;
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float sl, tl, sh, th;
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} glpic_t;
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} glpic_t;
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int gl_lightmap_format = 4; //FIXME: use GL types? --Despair
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int gl_solid_format = 3;
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int gl_alpha_format = 4;
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int gl_filter_min = GL_LINEAR_MIPMAP_NEAREST;
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int gl_filter_max = GL_LINEAR;
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typedef struct {
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int texnum;
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char identifier[64];
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int width, height;
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int bytesperpixel;
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qboolean mipmap;
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unsigned short crc; // LordHavoc: CRC for texture
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// validation
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} gltexture_t;
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static gltexture_t gltextures[MAX_GLTEXTURES];
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static int numgltextures = 0;
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//=============================================================================
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//=============================================================================
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/* Support Routines */
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/* Support Routines */
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@ -126,6 +101,9 @@ static int numcachepics;
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static byte menuplyr_pixels[4096];
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static byte menuplyr_pixels[4096];
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extern int gl_filter_min, gl_filter_max;
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qpic_t *
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qpic_t *
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Draw_PicFromWad (char *name)
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Draw_PicFromWad (char *name)
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{
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{
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@ -135,7 +113,7 @@ Draw_PicFromWad (char *name)
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p = W_GetLumpName (name);
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p = W_GetLumpName (name);
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gl = (glpic_t *) p->data;
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gl = (glpic_t *) p->data;
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gl->texnum = GL_LoadPicTexture (p, true);
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gl->texnum = GL_LoadTexture ("", p->width, p->height, p->data, false, true, 1);
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gl->sl = 0;
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gl->sl = 0;
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gl->sh = 1;
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gl->sh = 1;
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gl->tl = 0;
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gl->tl = 0;
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@ -144,6 +122,7 @@ Draw_PicFromWad (char *name)
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return p;
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return p;
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}
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}
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void
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void
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Draw_ClearCache (void)
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Draw_ClearCache (void)
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{
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{
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@ -154,9 +133,7 @@ Draw_ClearCache (void)
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pic->dirty = true;
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pic->dirty = true;
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}
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}
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/*
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Draw_CachePic
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*/
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qpic_t *
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qpic_t *
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Draw_CachePic (char *path, qboolean alpha)
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Draw_CachePic (char *path, qboolean alpha)
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{
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{
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@ -193,7 +170,7 @@ Draw_CachePic (char *path, qboolean alpha)
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// Now feed it to the GL stuff and get a texture number..
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// Now feed it to the GL stuff and get a texture number..
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gl = (glpic_t *) pic->pic.data;
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gl = (glpic_t *) pic->pic.data;
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gl->texnum = GL_LoadPicTexture (dat, alpha);
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gl->texnum = GL_LoadTexture ("", dat->width, dat->height, dat->data, false, alpha, 1);
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// Alignment stuff..
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// Alignment stuff..
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gl->sl = 0;
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gl->sl = 0;
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@ -207,8 +184,7 @@ Draw_CachePic (char *path, qboolean alpha)
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// FIXME:
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// FIXME:
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// A really ugly kluge, keep a specific image in memory
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// A really ugly kluge, keep a specific image in memory
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// for the menu system.
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// for the menu system.
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//
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// Some days I really dislike legacy support..
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// Some days I really dislike legacy support..
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if (!strcmp (path, "gfx/menuplyr.lmp"))
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if (!strcmp (path, "gfx/menuplyr.lmp"))
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@ -219,63 +195,6 @@ Draw_CachePic (char *path, qboolean alpha)
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}
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}
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typedef struct {
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char *name;
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int minimize, maximize;
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} glmode_t;
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static glmode_t modes[] = {
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{"GL_NEAREST", GL_NEAREST, GL_NEAREST},
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{"GL_LINEAR", GL_LINEAR, GL_LINEAR},
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{"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
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{"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
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{"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
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{"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
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};
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/*
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Draw_TextureMode_f
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*/
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static void
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Draw_TextureMode_f (void)
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{
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int i;
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gltexture_t *glt;
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if (Cmd_Argc () == 1) {
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for (i = 0; i < 6; i++)
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if (gl_filter_min == modes[i].minimize) {
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Con_Printf ("%s\n", modes[i].name);
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return;
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}
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Con_Printf ("current filter is unknown?\n");
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return;
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}
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for (i = 0; i < 6; i++) {
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if (!strcasecmp (modes[i].name, Cmd_Argv (1)))
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break;
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}
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if (i == 6) {
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Con_Printf ("bad filter name\n");
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return;
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}
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gl_filter_min = modes[i].minimize;
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gl_filter_max = modes[i].maximize;
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// change all the existing mipmap texture objects
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for (i = 0, glt = gltextures; i < numgltextures; i++, glt++) {
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if (glt->mipmap) {
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glBindTexture (GL_TEXTURE_2D, glt->texnum);
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glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
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gl_filter_min);
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glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
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gl_filter_max);
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}
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}
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}
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void
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void
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Draw_TextBox (int x, int y, int width, int lines)
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Draw_TextBox (int x, int y, int width, int lines)
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{
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{
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@ -328,35 +247,34 @@ Draw_TextBox (int x, int y, int width, int lines)
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Draw_Pic (cx, cy + 8, p);
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Draw_Pic (cx, cy + 8, p);
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}
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}
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extern void glrmain_init (void);
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extern void glrmain_init (void);
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extern void glrsurf_init (void);
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extern void glrsurf_init (void);
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extern void GL_TextureMode_f (void);
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/*
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Draw_Init
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*/
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void
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void
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Draw_Init (void)
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Draw_Init (void)
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{
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{
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int i;
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int i;
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// LordHavoc: 3DFX's dithering has terrible artifacts with lightmode 1
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// 3dfx can only handle 256 wide textures
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// 3dfx can only handle 256 wide textures
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if (!strncasecmp ((char *) gl_renderer, "3dfx", 4) ||
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!strncasecmp ((char *) gl_renderer, "Mesa", 4))
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Cvar_Set (gl_max_size, "256");
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// LordHavoc: 3DFX's dithering has terrible artifacting when using
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// lightmode 1
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if (!strncasecmp ((char *) gl_renderer, "3dfx", 4))
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if (!strncasecmp ((char *) gl_renderer, "3dfx", 4))
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{
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Cvar_Set (gl_max_size, "256");
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Cvar_Set (gl_lightmode, "0");
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Cvar_Set (gl_lightmode, "0");
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lighthalf = gl_lightmode->int_val != 0; // to avoid re-rendering all
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}
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// lightmaps on first frame
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lighthalf = gl_lightmode->int_val != 0; // to avoid re-rendering all
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// lightmaps on first frame
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if (lighthalf) {
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if (lighthalf) {
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lighthalf_v[0] = lighthalf_v[1] = lighthalf_v[2] = 128;
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lighthalf_v[0] = lighthalf_v[1] = lighthalf_v[2] = 128;
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} else {
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} else {
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lighthalf_v[0] = lighthalf_v[1] = lighthalf_v[2] = 255;
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lighthalf_v[0] = lighthalf_v[1] = lighthalf_v[2] = 255;
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}
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}
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Cmd_AddCommand ("gl_texturemode", &Draw_TextureMode_f, "No Description");
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Cmd_AddCommand ("gl_texturemode", &GL_TextureMode_f, "Texture mipmap quality.");
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// load the console background and the charset
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// load the console background and the charset
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// by hand, because we need to write the version
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// by hand, because we need to write the version
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@ -370,7 +288,6 @@ Draw_Init (void)
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// now turn them into textures
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// now turn them into textures
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char_texture = GL_LoadTexture ("charset", 128, 128, draw_chars, false, true, 1); // 1999-12-27 Conwidth/height charset fix by TcT
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char_texture = GL_LoadTexture ("charset", 128, 128, draw_chars, false, true, 1); // 1999-12-27 Conwidth/height charset fix by TcT
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cs_texture = GL_LoadTexture ("crosshair", 8, 8, cs_data, false, true, 1);
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cs_texture = GL_LoadTexture ("crosshair", 8, 8, cs_data, false, true, 1);
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// char_texture = GL_LoadTexture ("charset", 128, 128, draw_chars, false, true, 1); // 1999-12-27 Conwidth/height charset fix by TcT
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glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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@ -378,9 +295,7 @@ Draw_Init (void)
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// save a texture slot for translated picture
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// save a texture slot for translated picture
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translate_texture = texture_extension_number++;
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translate_texture = texture_extension_number++;
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//
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// get the other pics we need
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// get the other pics we need
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//
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draw_disc = Draw_PicFromWad ("disc");
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draw_disc = Draw_PicFromWad ("disc");
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draw_backtile = Draw_PicFromWad ("backtile");
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draw_backtile = Draw_PicFromWad ("backtile");
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@ -389,6 +304,7 @@ Draw_Init (void)
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glrsurf_init ();
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glrsurf_init ();
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}
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}
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void
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void
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Draw_Init_Cvars (void)
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Draw_Init_Cvars (void)
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{
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{
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@ -408,7 +324,6 @@ Draw_Init_Cvars (void)
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}
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}
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/*
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/*
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Draw_Character8
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Draw_Character8
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@ -451,9 +366,7 @@ Draw_Character8 (int x, int y, int num)
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glEnd ();
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glEnd ();
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}
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}
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/*
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Draw_String8
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*/
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void
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void
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Draw_String8 (int x, int y, char *str)
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Draw_String8 (int x, int y, char *str)
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{
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{
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@ -464,9 +377,7 @@ Draw_String8 (int x, int y, char *str)
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}
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}
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}
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}
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/*
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Draw_AltString8
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*/
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void
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void
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Draw_AltString8 (int x, int y, char *str)
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Draw_AltString8 (int x, int y, char *str)
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{
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{
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@ -477,6 +388,7 @@ Draw_AltString8 (int x, int y, char *str)
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}
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}
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}
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}
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void
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void
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Draw_Crosshair (void)
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Draw_Crosshair (void)
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{
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{
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@ -522,9 +434,7 @@ Draw_Crosshair (void)
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}
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}
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}
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}
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/*
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Draw_Pic
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*/
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void
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void
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Draw_Pic (int x, int y, qpic_t *pic)
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Draw_Pic (int x, int y, qpic_t *pic)
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{
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{
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@ -545,6 +455,7 @@ Draw_Pic (int x, int y, qpic_t *pic)
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glEnd ();
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glEnd ();
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}
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}
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void
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void
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Draw_SubPic (int x, int y, qpic_t *pic, int srcx, int srcy, int width,
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Draw_SubPic (int x, int y, qpic_t *pic, int srcx, int srcy, int width,
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int height)
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int height)
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@ -582,6 +493,9 @@ Draw_SubPic (int x, int y, qpic_t *pic, int srcx, int srcy, int width,
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glColor3ubv (lighthalf_v);
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glColor3ubv (lighthalf_v);
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}
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}
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extern int gl_filter_min, gl_filter_max;
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/*
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/*
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Draw_TransPicTranslate
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Draw_TransPicTranslate
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@ -829,6 +743,7 @@ Draw_EndDisc (void)
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{
|
{
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
GL_Set2D
|
GL_Set2D
|
||||||
|
|
||||||
|
|
@ -851,379 +766,3 @@ GL_Set2D (void)
|
||||||
|
|
||||||
glColor3ubv (lighthalf_v);
|
glColor3ubv (lighthalf_v);
|
||||||
}
|
}
|
||||||
|
|
||||||
//====================================================================
|
|
||||||
|
|
||||||
/*
|
|
||||||
GL_ResampleTexture
|
|
||||||
*/
|
|
||||||
static void
|
|
||||||
GL_ResampleTexture (unsigned int *in, int inwidth, int inheight,
|
|
||||||
unsigned int *out, int outwidth, int outheight)
|
|
||||||
{
|
|
||||||
int i, j;
|
|
||||||
unsigned int *inrow;
|
|
||||||
unsigned int frac, fracstep;
|
|
||||||
|
|
||||||
if (!outwidth || !outheight)
|
|
||||||
return;
|
|
||||||
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 ++) {
|
|
||||||
out[j] = inrow[frac >> 16];
|
|
||||||
frac += fracstep;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
GL_Resample8BitTexture -- JACK
|
|
||||||
*/
|
|
||||||
#if defined(GL_SHARED_TEXTURE_PALETTE_EXT) && defined(HAVE_GL_COLOR_INDEX8_EXT)
|
|
||||||
static void
|
|
||||||
GL_Resample8BitTexture (unsigned char *in, int inwidth, int inheight,
|
|
||||||
unsigned char *out, int outwidth, int outheight)
|
|
||||||
{
|
|
||||||
int i, j;
|
|
||||||
unsigned char *inrow;
|
|
||||||
unsigned int frac, fracstep;
|
|
||||||
|
|
||||||
if (!outwidth || !outheight)
|
|
||||||
return;
|
|
||||||
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 ++) {
|
|
||||||
out[j] = inrow[frac >> 16];
|
|
||||||
frac += fracstep;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*
|
|
||||||
GL_MipMap
|
|
||||||
|
|
||||||
Operates in place, quartering the size of the texture
|
|
||||||
*/
|
|
||||||
static 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
|
|
||||||
*/
|
|
||||||
#if defined(GL_SHARED_TEXTURE_PALETTE_EXT) && defined(HAVE_GL_COLOR_INDEX8_EXT)
|
|
||||||
static void
|
|
||||||
GL_MipMap8Bit (byte * in, int width, int height)
|
|
||||||
{
|
|
||||||
int i, j;
|
|
||||||
byte *out;
|
|
||||||
unsigned short r, g, b;
|
|
||||||
byte *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)];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*
|
|
||||||
GL_Upload32
|
|
||||||
*/
|
|
||||||
static void
|
|
||||||
GL_Upload32 (unsigned int *data, int width, int height, qboolean mipmap,
|
|
||||||
qboolean alpha)
|
|
||||||
{
|
|
||||||
unsigned int *scaled;
|
|
||||||
int scaled_width, scaled_height, samples;
|
|
||||||
|
|
||||||
if (!width || !height)
|
|
||||||
return; // Null texture
|
|
||||||
|
|
||||||
// Snap the height and width to a power of 2.
|
|
||||||
for (scaled_width = 1; scaled_width < width; scaled_width <<= 1);
|
|
||||||
for (scaled_height = 1; scaled_height < height; scaled_height <<= 1);
|
|
||||||
|
|
||||||
scaled_width >>= gl_picmip->int_val;
|
|
||||||
scaled_height >>= gl_picmip->int_val;
|
|
||||||
|
|
||||||
scaled_width = min (scaled_width, gl_max_size->int_val);
|
|
||||||
scaled_height = min (scaled_height, gl_max_size->int_val);
|
|
||||||
|
|
||||||
if (!(scaled = malloc (scaled_width * scaled_height * sizeof (GLuint))))
|
|
||||||
Sys_Error ("GL_LoadTexture: too big");
|
|
||||||
|
|
||||||
samples = alpha ? gl_alpha_format : gl_solid_format;
|
|
||||||
|
|
||||||
// If the real width/height and the 'scaled' width/height then we
|
|
||||||
// rescale it.
|
|
||||||
if (scaled_width == width && scaled_height == height) {
|
|
||||||
memcpy (scaled, data, width * height * sizeof (GLuint));
|
|
||||||
} 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;
|
|
||||||
scaled_width = max (scaled_width, 1);
|
|
||||||
scaled_height = max (scaled_height, 1);
|
|
||||||
miplevel++;
|
|
||||||
glTexImage2D (GL_TEXTURE_2D, miplevel, samples, scaled_width,
|
|
||||||
scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
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);
|
|
||||||
if (gl_picmip->int_val)
|
|
||||||
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
||||||
else
|
|
||||||
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
||||||
}
|
|
||||||
|
|
||||||
free (scaled);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
GL_Upload8_EXT
|
|
||||||
|
|
||||||
If we have shared or global palettes, upload an 8-bit texture. If we don't,
|
|
||||||
this function does nothing.
|
|
||||||
*/
|
|
||||||
void
|
|
||||||
GL_Upload8_EXT (byte * data, int width, int height, qboolean mipmap,
|
|
||||||
qboolean alpha)
|
|
||||||
{
|
|
||||||
#if defined(GL_SHARED_TEXTURE_PALETTE_EXT) && defined(HAVE_GL_COLOR_INDEX8_EXT)
|
|
||||||
|
|
||||||
byte *scaled;
|
|
||||||
int scaled_width, scaled_height;
|
|
||||||
|
|
||||||
// Snap the height and width to a power of 2.
|
|
||||||
for (scaled_width = 1; scaled_width < width; scaled_width <<= 1);
|
|
||||||
for (scaled_height = 1; scaled_height < height; scaled_height <<= 1);
|
|
||||||
|
|
||||||
scaled_width >>= gl_picmip->int_val;
|
|
||||||
scaled_height >>= gl_picmip->int_val;
|
|
||||||
|
|
||||||
scaled_width = min (scaled_width, gl_max_size->int_val);
|
|
||||||
scaled_height = min (scaled_height, gl_max_size->int_val);
|
|
||||||
|
|
||||||
if (!(scaled = malloc (scaled_width * scaled_height)))
|
|
||||||
Sys_Error ("GL_LoadTexture: too big");
|
|
||||||
|
|
||||||
// If the real width/height and the 'scaled' width/height then we
|
|
||||||
// rescale it.
|
|
||||||
if (scaled_width == width && scaled_height == height) {
|
|
||||||
memcpy (scaled, data, width * height);
|
|
||||||
} else {
|
|
||||||
GL_Resample8BitTexture (data, width, height, 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;
|
|
||||||
scaled_width = max (scaled_width, 1);
|
|
||||||
scaled_height = max (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);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
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);
|
|
||||||
if (gl_picmip->int_val)
|
|
||||||
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
||||||
else
|
|
||||||
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
||||||
}
|
|
||||||
|
|
||||||
free (scaled);
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
|
|
||||||
extern qboolean VID_Is8bit (void);
|
|
||||||
|
|
||||||
/*
|
|
||||||
GL_Upload8
|
|
||||||
*/
|
|
||||||
void
|
|
||||||
GL_Upload8 (byte * data, int width, int height, qboolean mipmap, qboolean alpha)
|
|
||||||
{
|
|
||||||
unsigned int *trans = NULL;
|
|
||||||
int i, s, p;
|
|
||||||
|
|
||||||
s = width * height;
|
|
||||||
trans = malloc (s * sizeof (unsigned int));
|
|
||||||
|
|
||||||
// if there are no transparent pixels, make it a 3 component
|
|
||||||
// texture even if it was specified as otherwise
|
|
||||||
if (alpha) {
|
|
||||||
alpha = false;
|
|
||||||
for (i = 0; i < s; i++) {
|
|
||||||
p = data[i];
|
|
||||||
if (p == 255)
|
|
||||||
alpha = true;
|
|
||||||
trans[i] = d_8to24table[p];
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
if (s & 3)
|
|
||||||
Sys_Error ("GL_Upload8: width*height divisible by 3");
|
|
||||||
for (i = 0; i < s; i += 4) {
|
|
||||||
trans[i] = d_8to24table[data[i]];
|
|
||||||
trans[i + 1] = d_8to24table[data[i + 1]];
|
|
||||||
trans[i + 2] = d_8to24table[data[i + 2]];
|
|
||||||
trans[i + 3] = d_8to24table[data[i + 3]];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#if defined(GL_SHARED_TEXTURE_PALETTE_EXT) && defined(HAVE_GL_COLOR_INDEX8_EXT)
|
|
||||||
|
|
||||||
if (VID_Is8bit () && !alpha) {
|
|
||||||
GL_Upload8_EXT (data, width, height, mipmap, alpha);
|
|
||||||
} else {
|
|
||||||
#else
|
|
||||||
{
|
|
||||||
#endif
|
|
||||||
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)
|
|
||||||
{
|
|
||||||
gltexture_t *glt;
|
|
||||||
int i, crc;
|
|
||||||
|
|
||||||
// LordHavoc: now just using a standard CRC for texture validation
|
|
||||||
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 (strequal (identifier, glt->identifier)) {
|
|
||||||
if (crc != glt->crc
|
|
||||||
|| width != glt->width
|
|
||||||
|| height != glt->height
|
|
||||||
|| bytesperpixel != glt->bytesperpixel) goto SetupTexture;
|
|
||||||
else
|
|
||||||
return gltextures[i].texnum;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (numgltextures == MAX_GLTEXTURES)
|
|
||||||
Sys_Error ("numgltextures == MAX_GLTEXTURES");
|
|
||||||
|
|
||||||
glt = &gltextures[numgltextures];
|
|
||||||
numgltextures++;
|
|
||||||
|
|
||||||
strncpy (glt->identifier, identifier, sizeof (glt->identifier) - 1);
|
|
||||||
glt->identifier[sizeof (glt->identifier) - 1] = '\0';
|
|
||||||
|
|
||||||
glt->texnum = texture_extension_number;
|
|
||||||
texture_extension_number++;
|
|
||||||
|
|
||||||
SetupTexture:
|
|
||||||
glt->crc = crc;
|
|
||||||
glt->width = width;
|
|
||||||
glt->height = height;
|
|
||||||
glt->bytesperpixel = bytesperpixel;
|
|
||||||
glt->mipmap = mipmap;
|
|
||||||
|
|
||||||
glBindTexture (GL_TEXTURE_2D, glt->texnum);
|
|
||||||
|
|
||||||
switch (glt->bytesperpixel) {
|
|
||||||
case 1:
|
|
||||||
GL_Upload8 (data, width, height, mipmap, alpha);
|
|
||||||
break;
|
|
||||||
case 4:
|
|
||||||
GL_Upload32 ((GLuint *) data, width, height, mipmap, alpha);
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
Sys_Error ("SetupTexture: unknown bytesperpixel %i",
|
|
||||||
glt->bytesperpixel);
|
|
||||||
}
|
|
||||||
|
|
||||||
return glt->texnum;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
GL_LoadPicTexture
|
|
||||||
*/
|
|
||||||
static int
|
|
||||||
GL_LoadPicTexture (qpic_t *pic, qboolean alpha)
|
|
||||||
{
|
|
||||||
return GL_LoadTexture ("", pic->width, pic->height, pic->data, false, alpha,
|
|
||||||
1);
|
|
||||||
}
|
|
||||||
|
|
|
||||||
557
qw/source/gl_textures.c
Normal file
557
qw/source/gl_textures.c
Normal file
|
|
@ -0,0 +1,557 @@
|
||||||
|
/*
|
||||||
|
gl_textures.c
|
||||||
|
|
||||||
|
Texture format setup.
|
||||||
|
|
||||||
|
Copyright (C) 1996-1997 Id Software, Inc.
|
||||||
|
Copyright (C) 2001 Ragnvald Maartmann-Moe IV
|
||||||
|
|
||||||
|
This program is free software; you can redistribute it and/or
|
||||||
|
modify it under the terms of the GNU General Public License
|
||||||
|
as published by the Free Software Foundation; either version 2
|
||||||
|
of the License, or (at your option) any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||||
|
|
||||||
|
See the GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program; if not, write to:
|
||||||
|
|
||||||
|
Free Software Foundation, Inc.
|
||||||
|
59 Temple Place - Suite 330
|
||||||
|
Boston, MA 02111-1307, USA
|
||||||
|
|
||||||
|
$Id
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
# include "config.h"
|
||||||
|
#endif
|
||||||
|
#ifdef HAVE_STRING_H
|
||||||
|
# include <string.h>
|
||||||
|
#endif
|
||||||
|
#ifdef HAVE_STRINGS_H
|
||||||
|
# include <strings.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#include "cmd.h"
|
||||||
|
#include "console.h"
|
||||||
|
#include "crc.h"
|
||||||
|
#include "draw.h"
|
||||||
|
#include "glquake.h"
|
||||||
|
#include "sbar.h"
|
||||||
|
#include "screen.h"
|
||||||
|
#include "sys.h"
|
||||||
|
|
||||||
|
extern unsigned char d_15to8table[65536];
|
||||||
|
extern cvar_t *gl_picmip;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
int texnum;
|
||||||
|
char identifier[64];
|
||||||
|
int width, height;
|
||||||
|
int bytesperpixel;
|
||||||
|
qboolean mipmap;
|
||||||
|
unsigned short crc; // LordHavoc: CRC for texure validation
|
||||||
|
} gltexture_t;
|
||||||
|
|
||||||
|
static gltexture_t gltextures[MAX_GLTEXTURES];
|
||||||
|
static int numgltextures = 0;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
char *name;
|
||||||
|
int minimize, maximize;
|
||||||
|
} glmode_t;
|
||||||
|
|
||||||
|
static 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}
|
||||||
|
};
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
char *name;
|
||||||
|
int format;
|
||||||
|
} glformat_t;
|
||||||
|
|
||||||
|
static glformat_t formats[] = {
|
||||||
|
{"1", 1},
|
||||||
|
{"2", 2},
|
||||||
|
{"3", 3},
|
||||||
|
{"4", 4},
|
||||||
|
{"GL_ALPHA", GL_ALPHA},
|
||||||
|
{"GL_ALPHA4", GL_ALPHA4},
|
||||||
|
{"GL_ALPHA8", GL_ALPHA8},
|
||||||
|
{"GL_ALPHA12", GL_ALPHA12},
|
||||||
|
{"GL_ALPHA16", GL_ALPHA16},
|
||||||
|
{"GL_LUMINANCE", GL_LUMINANCE},
|
||||||
|
{"GL_LUMINANCE4", GL_LUMINANCE4},
|
||||||
|
{"GL_LUMINANCE8", GL_LUMINANCE8},
|
||||||
|
{"GL_LUMINANCE12", GL_LUMINANCE12},
|
||||||
|
{"GL_LUMINANCE16", GL_LUMINANCE16},
|
||||||
|
{"GL_LUMINANCE_ALPHA", GL_LUMINANCE_ALPHA},
|
||||||
|
{"GL_LUMINANCE4_ALPHA4", GL_LUMINANCE4_ALPHA4},
|
||||||
|
{"GL_LUMINANCE6_ALPHA2", GL_LUMINANCE6_ALPHA2},
|
||||||
|
{"GL_LUMINANCE8_ALPHA8", GL_LUMINANCE8_ALPHA8},
|
||||||
|
{"GL_LUMINANCE12_ALPHA4", GL_LUMINANCE12_ALPHA4},
|
||||||
|
{"GL_LUMINANCE12_ALPHA12", GL_LUMINANCE12_ALPHA12},
|
||||||
|
{"GL_LUMINANCE16_ALPHA16", GL_LUMINANCE16_ALPHA16},
|
||||||
|
{"GL_INTENSITY", GL_INTENSITY},
|
||||||
|
{"GL_INTENSITY4", GL_INTENSITY4},
|
||||||
|
{"GL_INTENSITY8", GL_INTENSITY8},
|
||||||
|
{"GL_INTENSITY12", GL_INTENSITY12},
|
||||||
|
{"GL_INTENSITY16", GL_INTENSITY16},
|
||||||
|
{"GL_R3_G3_B2", GL_R3_G3_B2},
|
||||||
|
{"GL_RGB", GL_RGB},
|
||||||
|
{"GL_RGB4", GL_RGB4},
|
||||||
|
{"GL_RGB5", GL_RGB5},
|
||||||
|
{"GL_RGB8", GL_RGB8},
|
||||||
|
{"GL_RGB10", GL_RGB10},
|
||||||
|
{"GL_RGB12", GL_RGB12},
|
||||||
|
{"GL_RGB16", GL_RGB16},
|
||||||
|
{"GL_RGBA", GL_RGBA},
|
||||||
|
{"GL_RGBA2", GL_RGBA2},
|
||||||
|
{"GL_RGBA4", GL_RGBA4},
|
||||||
|
{"GL_RGB5_A1", GL_RGB5_A1},
|
||||||
|
{"GL_RGBA8", GL_RGBA8},
|
||||||
|
{"GL_RGB10_A2", GL_RGB10_A2},
|
||||||
|
{"GL_RGBA12", GL_RGBA12},
|
||||||
|
{"GL_RGBA16", GL_RGBA16}
|
||||||
|
};
|
||||||
|
|
||||||
|
int gl_filter_min = GL_LINEAR_MIPMAP_LINEAR, gl_filter_max = GL_LINEAR;
|
||||||
|
int gl_alpha_format = 4, gl_lightmap_format = 4, gl_solid_format = 3;
|
||||||
|
|
||||||
|
|
||||||
|
void
|
||||||
|
GL_TextureMode_f (void)
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
gltexture_t *glt;
|
||||||
|
|
||||||
|
if (Cmd_Argc () == 1) {
|
||||||
|
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;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0; i < 6; i++) {
|
||||||
|
if (!strcasecmp (modes[i].name, Cmd_Argv (1)))
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (i == 6) {
|
||||||
|
Con_Printf ("bad filter name\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
gl_filter_min = modes[i].minimize;
|
||||||
|
gl_filter_max = modes[i].maximize;
|
||||||
|
|
||||||
|
// 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);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int
|
||||||
|
GL_TextureDepth_f (int format)
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for (i = 0; i < 42; i++) {
|
||||||
|
if (format == formats[i].format) {
|
||||||
|
Con_Printf ("%s\n", formats[i].name);
|
||||||
|
return GL_RGBA;
|
||||||
|
}
|
||||||
|
Con_Printf ("current texture format is unknown?\n");
|
||||||
|
return GL_RGBA;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0; i < 42; i++) {
|
||||||
|
if (!strcasecmp (formats[i].name, Cmd_Argv (1)))
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (i == 42) {
|
||||||
|
Con_Printf ("bad texture format name\n");
|
||||||
|
return GL_RGBA;
|
||||||
|
}
|
||||||
|
|
||||||
|
return formats[i].format;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
GL_ResampleTexture (unsigned int *in, int inwidth, int inheight,
|
||||||
|
unsigned int *out, int outwidth, int outheight)
|
||||||
|
{
|
||||||
|
int i, j;
|
||||||
|
unsigned int *inrow;
|
||||||
|
unsigned int frac, fracstep;
|
||||||
|
|
||||||
|
if (!outwidth || !outheight)
|
||||||
|
return;
|
||||||
|
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 ++) {
|
||||||
|
out[j] = inrow[frac >> 16];
|
||||||
|
frac += fracstep;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#if defined(GL_SHARED_TEXTURE_PALETTE_EXT) && defined(HAVE_GL_COLOR_INDEX8_EXT)
|
||||||
|
static void
|
||||||
|
GL_Resample8BitTexture (unsigned char *in, int inwidth, int inheight,
|
||||||
|
unsigned char *out, int outwidth, int outheight)
|
||||||
|
{
|
||||||
|
int i, j;
|
||||||
|
unsigned char *inrow;
|
||||||
|
unsigned int frac, fracstep;
|
||||||
|
|
||||||
|
if (!outwidth || !outheight)
|
||||||
|
return;
|
||||||
|
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 ++) {
|
||||||
|
out[j] = inrow[frac >> 16];
|
||||||
|
frac += fracstep;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
GL_MipMap
|
||||||
|
|
||||||
|
Operates in place, quartering the size of the texture.
|
||||||
|
*/
|
||||||
|
static 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
|
||||||
|
*/
|
||||||
|
#if defined(GL_SHARED_TEXTURE_PALETTE_EXT) && defined(HAVE_GL_COLOR_INDEX8_EXT)
|
||||||
|
static void
|
||||||
|
GL_MipMap8Bit (byte * in, int width, int height)
|
||||||
|
{
|
||||||
|
int i, j;
|
||||||
|
byte *out;
|
||||||
|
unsigned short r, g, b;
|
||||||
|
byte *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)];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
GL_Upload32 (unsigned int *data, int width, int height, qboolean mipmap,
|
||||||
|
qboolean alpha)
|
||||||
|
{
|
||||||
|
unsigned int *scaled;
|
||||||
|
int scaled_width, scaled_height, samples;
|
||||||
|
|
||||||
|
if (!width || !height)
|
||||||
|
return; // Null texture
|
||||||
|
|
||||||
|
// Snap the height and width to a power of 2.
|
||||||
|
for (scaled_width = 1; scaled_width < width; scaled_width <<= 1);
|
||||||
|
for (scaled_height = 1; scaled_height < height; scaled_height <<= 1);
|
||||||
|
|
||||||
|
scaled_width >>= gl_picmip->int_val;
|
||||||
|
scaled_height >>= gl_picmip->int_val;
|
||||||
|
|
||||||
|
scaled_width = min (scaled_width, gl_max_size->int_val);
|
||||||
|
scaled_height = min (scaled_height, gl_max_size->int_val);
|
||||||
|
|
||||||
|
if (!(scaled = malloc (scaled_width * scaled_height * sizeof (GLuint))))
|
||||||
|
Sys_Error ("GL_LoadTexture: too big");
|
||||||
|
|
||||||
|
samples = alpha ? gl_alpha_format : gl_solid_format;
|
||||||
|
|
||||||
|
// If the real width/height and the 'scaled' width/height then we
|
||||||
|
// rescale it.
|
||||||
|
|
||||||
|
if (scaled_width == width && scaled_height == height) {
|
||||||
|
memcpy (scaled, data, width * height * sizeof (GLuint));
|
||||||
|
} 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 = 0;
|
||||||
|
|
||||||
|
while (scaled_width > 1 || scaled_height > 1) {
|
||||||
|
GL_MipMap ((byte *) scaled, scaled_width, scaled_height);
|
||||||
|
scaled_width >>= 1;
|
||||||
|
scaled_height >>= 1;
|
||||||
|
scaled_width = max (scaled_width, 1);
|
||||||
|
scaled_height = max (scaled_height, 1);
|
||||||
|
miplevel++;
|
||||||
|
glTexImage2D (GL_TEXTURE_2D, miplevel, samples, scaled_width,
|
||||||
|
scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
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);
|
||||||
|
if (gl_picmip->int_val)
|
||||||
|
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
||||||
|
else
|
||||||
|
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
||||||
|
}
|
||||||
|
|
||||||
|
free (scaled);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
GL_Upload8_EXT
|
||||||
|
|
||||||
|
If we have shared or global palettes, upload an 8-bit texture.
|
||||||
|
If we don't, this function does nothing.
|
||||||
|
*/
|
||||||
|
void
|
||||||
|
GL_Upload8_EXT (byte * data, int width, int height, qboolean mipmap,
|
||||||
|
qboolean alpha)
|
||||||
|
{
|
||||||
|
#if defined(GL_SHARED_TEXTURE_PALETTE_EXT) && defined(HAVE_GL_COLOR_INDEX8_EXT)
|
||||||
|
byte *scaled;
|
||||||
|
int scaled_width, scaled_height;
|
||||||
|
|
||||||
|
// Snap the height and width to a power of 2.
|
||||||
|
for (scaled_width = 1; scaled_width < width; scaled_width <<= 1);
|
||||||
|
for (scaled_height = 1; scaled_height < height; scaled_height <<= 1);
|
||||||
|
|
||||||
|
scaled_width >>= gl_picmip->int_val;
|
||||||
|
scaled_height >>= gl_picmip->int_val;
|
||||||
|
|
||||||
|
scaled_width = min (scaled_width, gl_max_size->int_val);
|
||||||
|
scaled_height = min (scaled_height, gl_max_size->int_val);
|
||||||
|
|
||||||
|
if (!(scaled = malloc (scaled_width * scaled_height)))
|
||||||
|
Sys_Error ("GL_LoadTexture: too big");
|
||||||
|
|
||||||
|
// If the real width/height and the 'scaled' width/height then we
|
||||||
|
// rescale it.
|
||||||
|
if (scaled_width == width && scaled_height == height) {
|
||||||
|
memcpy (scaled, data, width * height);
|
||||||
|
} else {
|
||||||
|
GL_Resample8BitTexture (data, width, height, 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;
|
||||||
|
scaled_width = max (scaled_width, 1);
|
||||||
|
scaled_height = max (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);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
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);
|
||||||
|
if (gl_picmip->int_val)
|
||||||
|
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
||||||
|
else
|
||||||
|
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
||||||
|
}
|
||||||
|
|
||||||
|
free (scaled);
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
extern qboolean VID_Is8bit (void);
|
||||||
|
|
||||||
|
void
|
||||||
|
GL_Upload8 (byte * data, int width, int height, qboolean mipmap, qboolean alpha)
|
||||||
|
{
|
||||||
|
unsigned int *trans = NULL;
|
||||||
|
int i, s, p;
|
||||||
|
|
||||||
|
s = width * height;
|
||||||
|
trans = malloc (s * sizeof (unsigned int));
|
||||||
|
|
||||||
|
// if there are no transparent pixels, make it a 3 component
|
||||||
|
// texture even if it was specified as otherwise
|
||||||
|
if (alpha) {
|
||||||
|
alpha = false;
|
||||||
|
for (i = 0; i < s; i++) {
|
||||||
|
p = data[i];
|
||||||
|
if (p == 255)
|
||||||
|
alpha = true;
|
||||||
|
trans[i] = d_8to24table[p];
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (s & 3)
|
||||||
|
Sys_Error ("GL_Upload8: width*height divisible by 3");
|
||||||
|
for (i = 0; i < s; i += 4) {
|
||||||
|
trans[i] = d_8to24table[data[i]];
|
||||||
|
trans[i + 1] = d_8to24table[data[i + 1]];
|
||||||
|
trans[i + 2] = d_8to24table[data[i + 2]];
|
||||||
|
trans[i + 3] = d_8to24table[data[i + 3]];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#if defined(GL_SHARED_TEXTURE_PALETTE_EXT) && defined(HAVE_GL_COLOR_INDEX8_EXT)
|
||||||
|
if (VID_Is8bit () && !alpha) {
|
||||||
|
GL_Upload8_EXT (data, width, height, mipmap, alpha);
|
||||||
|
} else {
|
||||||
|
#else
|
||||||
|
{
|
||||||
|
#endif
|
||||||
|
GL_Upload32 (trans, width, height, mipmap, alpha);
|
||||||
|
}
|
||||||
|
|
||||||
|
free (trans);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int
|
||||||
|
GL_LoadTexture (char *identifier, int width, int height, byte * data,
|
||||||
|
qboolean mipmap, qboolean alpha, int bytesperpixel)
|
||||||
|
{
|
||||||
|
gltexture_t *glt;
|
||||||
|
int i, crc;
|
||||||
|
|
||||||
|
// LordHavoc: now just using a standard CRC for texture validation
|
||||||
|
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 (strequal (identifier, glt->identifier)) {
|
||||||
|
if (crc != glt->crc
|
||||||
|
|| width != glt->width
|
||||||
|
|| height != glt->height
|
||||||
|
|| bytesperpixel != glt->bytesperpixel) goto SetupTexture;
|
||||||
|
else
|
||||||
|
return gltextures[i].texnum;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (numgltextures == MAX_GLTEXTURES)
|
||||||
|
Sys_Error ("numgltextures == MAX_GLTEXTURES");
|
||||||
|
|
||||||
|
glt = &gltextures[numgltextures];
|
||||||
|
numgltextures++;
|
||||||
|
|
||||||
|
strncpy (glt->identifier, identifier, sizeof (glt->identifier) - 1);
|
||||||
|
glt->identifier[sizeof (glt->identifier) - 1] = '\0';
|
||||||
|
|
||||||
|
glt->texnum = texture_extension_number;
|
||||||
|
texture_extension_number++;
|
||||||
|
|
||||||
|
SetupTexture:
|
||||||
|
glt->crc = crc;
|
||||||
|
glt->width = width;
|
||||||
|
glt->height = height;
|
||||||
|
glt->bytesperpixel = bytesperpixel;
|
||||||
|
glt->mipmap = mipmap;
|
||||||
|
|
||||||
|
glBindTexture (GL_TEXTURE_2D, glt->texnum);
|
||||||
|
|
||||||
|
switch (glt->bytesperpixel) {
|
||||||
|
case 1:
|
||||||
|
GL_Upload8 (data, width, height, mipmap, alpha);
|
||||||
|
break;
|
||||||
|
case 4:
|
||||||
|
GL_Upload32 ((GLuint *) data, width, height, mipmap, alpha);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
Sys_Error ("SetupTexture: unknown bytesperpixel %i",
|
||||||
|
glt->bytesperpixel);
|
||||||
|
}
|
||||||
|
|
||||||
|
return glt->texnum;
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue