+
#include "quakedef.h"
+#include "image.h"
+#include "jpeg.h"
+#include "image_png.h"
+
+cvar_t gl_max_size = {CVAR_SAVE, "gl_max_size", "2048", "maximum allowed texture size, can be used to reduce video memory usage, note: this is automatically reduced to match video card capabilities (such as 256 on 3Dfx cards before Voodoo4/5)"};
+cvar_t gl_picmip = {CVAR_SAVE, "gl_picmip", "0", "reduces resolution of textures by powers of 2, for example 1 will halve width/height, reducing texture memory usage by 75%"};
+cvar_t r_lerpimages = {CVAR_SAVE, "r_lerpimages", "1", "bilinear filters images when scaling them up to power of 2 size (mode 1), looks better than glquake (mode 0)"};
+cvar_t r_precachetextures = {CVAR_SAVE, "r_precachetextures", "1", "0 = never upload textures until used, 1 = upload most textures before use (exceptions: rarely used skin colormap layers), 2 = upload all textures before use (can increase texture memory usage significantly)"};
+cvar_t gl_texture_anisotropy = {CVAR_SAVE, "gl_texture_anisotropy", "1", "anisotropic filtering quality (if supported by hardware), 1 sample (no anisotropy) and 8 sample (8 tap anisotropy) are recommended values"};
+
+int gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
+int gl_filter_mag = GL_LINEAR;
+
+
+static mempool_t *texturemempool;
+
+// note: this must not conflict with TEXF_ flags in r_textures.h
+// cleared when a texture is uploaded
+#define GLTEXF_UPLOAD 0x00010000
+// bitmask for mismatch checking
+#define GLTEXF_IMPORTANTBITS (0)
+// set when image is uploaded and freed
+#define GLTEXF_DESTROYED 0x00040000
+
+typedef struct textypeinfo_s
+{
+ int textype;
+ int inputbytesperpixel;
+ int internalbytesperpixel;
+ int glformat;
+ int glinternalformat;
+}
+textypeinfo_t;
+
+static textypeinfo_t textype_palette = {TEXTYPE_PALETTE, 1, 4, GL_RGBA , 3};
+static textypeinfo_t textype_rgb = {TEXTYPE_RGB , 3, 3, GL_RGB , 3};
+static textypeinfo_t textype_rgba = {TEXTYPE_RGBA , 4, 4, GL_RGBA , 3};
+static textypeinfo_t textype_palette_alpha = {TEXTYPE_PALETTE, 1, 4, GL_RGBA , 4};
+static textypeinfo_t textype_rgba_alpha = {TEXTYPE_RGBA , 4, 4, GL_RGBA , 4};
+
+#define GLTEXTURETYPE_1D 0
+#define GLTEXTURETYPE_2D 1
+#define GLTEXTURETYPE_3D 2
+#define GLTEXTURETYPE_CUBEMAP 3
+
+static int gltexturetypeenums[4] = {GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB};
+static int gltexturetypebindingenums[4] = {GL_TEXTURE_BINDING_1D, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_3D, GL_TEXTURE_BINDING_CUBE_MAP_ARB};
+static int gltexturetypedimensions[4] = {1, 2, 3, 2};
+static int cubemapside[6] =
+{
+ GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
+ GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
+ GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
+ GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
+ GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
+ GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
+};
+
+typedef struct gltexture_s
+{
+ // this field is exposed to the R_GetTexture macro, for speed reasons
+ // (must be identical in rtexture_t)
+ int texnum; // GL texture slot number
+
+ // pointer to texturepool (check this to see if the texture is allocated)
+ struct gltexturepool_s *pool;
+ // pointer to next texture in texturepool chain
+ struct gltexture_s *chain;
+ // name of the texture (this might be removed someday), no duplicates
+ char identifier[32];
+ // original data size in *inputtexels
+ int inputwidth, inputheight, inputdepth;
+ // copy of the original texture(s) supplied to the upload function, for
+ // delayed uploads (non-precached)
+ unsigned char *inputtexels;
+ // original data size in *inputtexels
+ int inputdatasize;
+ // flags supplied to the LoadTexture function
+ // (might be altered to remove TEXF_ALPHA), and GLTEXF_ private flags
+ int flags;
+ // pointer to one of the textype_ structs
+ textypeinfo_t *textype;
+ // one of the GLTEXTURETYPE_ values
+ int texturetype;
+ // palette if the texture is TEXTYPE_PALETTE
+ const unsigned int *palette;
+ // power of 2 size, after gl_picmip and gl_max_size are applied
+ int tilewidth, tileheight, tiledepth;
+ // 1 or 6 depending on texturetype
+ int sides;
+ // bytes per pixel
+ int bytesperpixel;
+ // GL_RGB or GL_RGBA
+ int glformat;
+ // 3 or 4
+ int glinternalformat;
+}
+gltexture_t;
+
+#define TEXTUREPOOL_SENTINEL 0xC0DEDBAD
+
+typedef struct gltexturepool_s
+{
+ unsigned int sentinel;
+ struct gltexture_s *gltchain;
+ struct gltexturepool_s *next;
+}
+gltexturepool_t;
+
+static gltexturepool_t *gltexturepoolchain = NULL;
+
+static unsigned char *resizebuffer = NULL, *colorconvertbuffer;
+static int resizebuffersize = 0;
+static unsigned char *texturebuffer;
+static int texturebuffersize = 0;
+
+static textypeinfo_t *R_GetTexTypeInfo(int textype, int flags)
+{
+ if (flags & TEXF_ALPHA)
+ {
+ switch(textype)
+ {
+ case TEXTYPE_PALETTE:
+ return &textype_palette_alpha;
+ case TEXTYPE_RGB:
+ Host_Error("R_GetTexTypeInfo: RGB format has no alpha, TEXF_ALPHA not allowed");
+ return NULL;
+ case TEXTYPE_RGBA:
+ return &textype_rgba_alpha;
+ default:
+ Host_Error("R_GetTexTypeInfo: unknown texture format");
+ return NULL;
+ }
+ }
+ else
+ {
+ switch(textype)
+ {
+ case TEXTYPE_PALETTE:
+ return &textype_palette;
+ case TEXTYPE_RGB:
+ return &textype_rgb;
+ case TEXTYPE_RGBA:
+ return &textype_rgba;
+ default:
+ Host_Error("R_GetTexTypeInfo: unknown texture format");
+ return NULL;
+ }
+ }
+}
+
+static void R_UploadTexture(gltexture_t *t);
-cvar_t gl_max_size = {"gl_max_size", "1024"};
-cvar_t gl_picmip = {"gl_picmip", "0"};
-cvar_t gl_lerpimages = {"gl_lerpimages", "1"};
-cvar_t r_upload = {"r_upload", "1"};
+static void R_PrecacheTexture(gltexture_t *glt)
+{
+ int precache;
+ precache = false;
+ if (glt->flags & TEXF_ALWAYSPRECACHE)
+ precache = true;
+ else if (r_precachetextures.integer >= 2)
+ precache = true;
+ else if (r_precachetextures.integer >= 1)
+ if (glt->flags & TEXF_PRECACHE)
+ precache = true;
+
+ if (precache)
+ R_UploadTexture(glt);
+}
-int gl_filter_min = GL_LINEAR_MIPMAP_LINEAR; //NEAREST;
-int gl_filter_max = GL_LINEAR;
+int R_RealGetTexture(rtexture_t *rt)
+{
+ if (rt)
+ {
+ gltexture_t *glt;
+ glt = (gltexture_t *)rt;
+ if (glt->flags & GLTEXF_UPLOAD)
+ R_UploadTexture(glt);
+ return glt->texnum;
+ }
+ else
+ return 0;
+}
+void R_FreeTexture(rtexture_t *rt)
+{
+ gltexture_t *glt, **gltpointer;
-int texels;
+ glt = (gltexture_t *)rt;
+ if (glt == NULL)
+ Host_Error("R_FreeTexture: texture == NULL");
-// 4096x4096
-#define MAXMIPS 12
+ for (gltpointer = &glt->pool->gltchain;*gltpointer && *gltpointer != glt;gltpointer = &(*gltpointer)->chain);
+ if (*gltpointer == glt)
+ *gltpointer = glt->chain;
+ else
+ Host_Error("R_FreeTexture: texture \"%s\" not linked in pool", glt->identifier);
-typedef struct
+ if (glt->texnum)
+ {
+ CHECKGLERROR
+ qglDeleteTextures(1, (GLuint *)&glt->texnum);CHECKGLERROR
+ }
+
+ if (glt->inputtexels)
+ Mem_Free(glt->inputtexels);
+ Mem_Free(glt);
+}
+
+rtexturepool_t *R_AllocTexturePool(void)
{
- int texnum;
- int totaltexels;
- byte *texels[MAXMIPS];
- unsigned short texelsize[MAXMIPS][2];
- char identifier[64];
- short width, height;
-// LordHavoc: CRC to identify cache mismatchs
- unsigned short crc;
- char mipmap;
- char alpha;
- char bytesperpixel;
- char lerped; // whether this texture was uploaded with or without interpolation
-} gltexture_t;
+ gltexturepool_t *pool;
+ if (texturemempool == NULL)
+ return NULL;
+ pool = (gltexturepool_t *)Mem_Alloc(texturemempool, sizeof(gltexturepool_t));
+ if (pool == NULL)
+ return NULL;
+ pool->next = gltexturepoolchain;
+ gltexturepoolchain = pool;
+ pool->sentinel = TEXTUREPOOL_SENTINEL;
+ return (rtexturepool_t *)pool;
+}
+
+void R_FreeTexturePool(rtexturepool_t **rtexturepool)
+{
+ gltexturepool_t *pool, **poolpointer;
+ if (rtexturepool == NULL)
+ return;
+ if (*rtexturepool == NULL)
+ return;
+ pool = (gltexturepool_t *)(*rtexturepool);
+ *rtexturepool = NULL;
+ if (pool->sentinel != TEXTUREPOOL_SENTINEL)
+ Host_Error("R_FreeTexturePool: pool already freed");
+ for (poolpointer = &gltexturepoolchain;*poolpointer && *poolpointer != pool;poolpointer = &(*poolpointer)->next);
+ if (*poolpointer == pool)
+ *poolpointer = pool->next;
+ else
+ Host_Error("R_FreeTexturePool: pool not linked");
+ while (pool->gltchain)
+ R_FreeTexture((rtexture_t *)pool->gltchain);
+ Mem_Free(pool);
+}
-#define MAX_GLTEXTURES 4096
-gltexture_t gltextures[MAX_GLTEXTURES];
-int numgltextures;
-typedef struct
+typedef struct glmode_s
{
char *name;
- int minimize, maximize;
-} glmode_t;
+ int minification, magnification;
+}
+glmode_t;
-glmode_t modes[] = {
+static glmode_t modes[6] =
+{
{"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_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
};
-/*
-===============
-Draw_TextureMode_f
-===============
-*/
-void Draw_TextureMode_f (void)
+static void GL_TextureMode_f (void)
{
- int i;
- gltexture_t *glt;
+ int i;
+ GLint oldbindtexnum;
+ gltexture_t *glt;
+ gltexturepool_t *pool;
if (Cmd_Argc() == 1)
{
- for (i=0 ; i< 6 ; i++)
- if (gl_filter_min == modes[i].minimize)
+ for (i = 0;i < 6;i++)
+ {
+ if (gl_filter_min == modes[i].minification)
{
- Con_Printf ("%s\n", modes[i].name);
+ Con_Printf("%s\n", modes[i].name);
return;
}
- Con_Printf ("current filter is unknown???\n");
+ }
+ Con_Print("current filter is unknown???\n");
return;
}
- for (i=0 ; i< 6 ; i++)
- {
- if (!Q_strcasecmp (modes[i].name, Cmd_Argv(1) ) )
+ for (i = 0;i < 6;i++)
+ if (!strcasecmp (modes[i].name, Cmd_Argv(1) ) )
break;
- }
if (i == 6)
{
- Con_Printf ("bad filter name\n");
+ Con_Print("bad filter name\n");
return;
}
- gl_filter_min = modes[i].minimize;
- gl_filter_max = modes[i].maximize;
+ gl_filter_min = modes[i].minification;
+ gl_filter_mag = modes[i].magnification;
- if (!r_upload.value)
- return;
// change all the existing mipmap texture objects
- for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
+ // FIXME: force renderer(/client/something?) restart instead?
+ CHECKGLERROR
+ for (pool = gltexturepoolchain;pool;pool = pool->next)
{
- if (glt->mipmap)
+ for (glt = pool->gltchain;glt;glt = glt->chain)
{
- 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);
+ // only update already uploaded images
+ if (!(glt->flags & (GLTEXF_UPLOAD | TEXF_FORCENEAREST | TEXF_FORCELINEAR)))
+ {
+ qglGetIntegerv(gltexturetypebindingenums[glt->texturetype], &oldbindtexnum);CHECKGLERROR
+ qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
+ if (glt->flags & TEXF_MIPMAP)
+ {
+ qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_min);CHECKGLERROR
+ }
+ else
+ {
+ qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_mag);CHECKGLERROR
+ }
+ qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MAG_FILTER, gl_filter_mag);CHECKGLERROR
+ qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
+ }
}
}
}
-void GL_TextureStats_Print(char *name, int total, int crc, int mip, int alpha)
+static void GL_Texture_CalcImageSize(int texturetype, int flags, int inwidth, int inheight, int indepth, int *outwidth, int *outheight, int *outdepth)
{
- char n[64];
- int c = 0;
- if (!name[0])
- name = "<unnamed>";
- while (name[c] && c < 28)
- n[c++] = name[c];
- while (c < 28)
- n[c++] = ' ';
- n[c] = 0;
- Con_Printf("%s %5i %04X %s %s\n", n, total, crc, mip ? "yes" : "no ", alpha ? "yes " : "no ");
+ int picmip = 0, maxsize = 0, width2 = 1, height2 = 1, depth2 = 1;
+
+ if (gl_max_size.integer > gl_max_texture_size)
+ Cvar_SetValue("gl_max_size", gl_max_texture_size);
+
+ switch (texturetype)
+ {
+ default:
+ case GLTEXTURETYPE_1D:
+ case GLTEXTURETYPE_2D:
+ maxsize = gl_max_texture_size;
+ break;
+ case GLTEXTURETYPE_3D:
+ maxsize = gl_max_3d_texture_size;
+ break;
+ case GLTEXTURETYPE_CUBEMAP:
+ maxsize = gl_max_cube_map_texture_size;
+ break;
+ }
+
+ if (flags & TEXF_PICMIP)
+ {
+ maxsize = min(maxsize, gl_max_size.integer);
+ picmip = gl_picmip.integer;
+ }
+
+ if (outwidth)
+ {
+ for (width2 = 1;width2 < inwidth;width2 <<= 1);
+ for (width2 >>= picmip;width2 > maxsize;width2 >>= 1);
+ *outwidth = max(1, width2);
+ }
+ if (outheight)
+ {
+ for (height2 = 1;height2 < inheight;height2 <<= 1);
+ for (height2 >>= picmip;height2 > maxsize;height2 >>= 1);
+ *outheight = max(1, height2);
+ }
+ if (outdepth)
+ {
+ for (depth2 = 1;depth2 < indepth;depth2 <<= 1);
+ for (depth2 >>= picmip;depth2 > maxsize;depth2 >>= 1);
+ *outdepth = max(1, depth2);
+ }
}
-void GL_TextureStats_f(void)
+
+static int R_CalcTexelDataSize (gltexture_t *glt)
{
- int i, s = 0, sc = 0, t = 0;
- gltexture_t *glt;
- Con_Printf("name kbytes crc mip alpha\n");
- for (i = 0, glt = gltextures;i < numgltextures;i++, glt++)
+ int width2, height2, depth2, size;
+
+ GL_Texture_CalcImageSize(glt->texturetype, glt->flags, glt->inputwidth, glt->inputheight, glt->inputdepth, &width2, &height2, &depth2);
+
+ size = width2 * height2 * depth2;
+
+ if (glt->flags & TEXF_MIPMAP)
{
- GL_TextureStats_Print(glt->identifier, ((glt->totaltexels * 4) + 512) >> 10, glt->crc, glt->mipmap, glt->alpha);
- t += glt->totaltexels;
- if (glt->identifier[0] == '&')
+ while (width2 > 1 || height2 > 1 || depth2 > 1)
{
- sc++;
- s += glt->totaltexels;
+ if (width2 > 1)
+ width2 >>= 1;
+ if (height2 > 1)
+ height2 >>= 1;
+ if (depth2 > 1)
+ depth2 >>= 1;
+ size += width2 * height2 * depth2;
}
}
- Con_Printf("%i textures, totalling %.3fMB, %i are (usually) unnecessary model skins totalling %.3fMB\n", numgltextures, t / 1048576.0, sc, s / 1048576.0);
+
+ return size * glt->textype->internalbytesperpixel * glt->sides;
}
-void GL_TextureStats_PrintTotal(void)
+void R_TextureStats_Print(qboolean printeach, qboolean printpool, qboolean printtotal)
{
- int i, s = 0, sc = 0, t = 0;
+ int glsize;
+ int isloaded;
+ int pooltotal = 0, pooltotalt = 0, pooltotalp = 0, poolloaded = 0, poolloadedt = 0, poolloadedp = 0;
+ int sumtotal = 0, sumtotalt = 0, sumtotalp = 0, sumloaded = 0, sumloadedt = 0, sumloadedp = 0;
gltexture_t *glt;
- for (i = 0, glt = gltextures;i < numgltextures;i++, glt++)
+ gltexturepool_t *pool;
+ if (printeach)
+ Con_Print("glsize input loaded mip alpha name\n");
+ for (pool = gltexturepoolchain;pool;pool = pool->next)
{
- t += glt->totaltexels;
- if (glt->identifier[0] == '&')
+ pooltotal = 0;
+ pooltotalt = 0;
+ pooltotalp = 0;
+ poolloaded = 0;
+ poolloadedt = 0;
+ poolloadedp = 0;
+ for (glt = pool->gltchain;glt;glt = glt->chain)
{
- sc++;
- s += glt->totaltexels;
+ glsize = R_CalcTexelDataSize(glt);
+ isloaded = !(glt->flags & GLTEXF_UPLOAD);
+ pooltotal++;
+ pooltotalt += glsize;
+ pooltotalp += glt->inputdatasize;
+ if (isloaded)
+ {
+ poolloaded++;
+ poolloadedt += glsize;
+ poolloadedp += glt->inputdatasize;
+ }
+ if (printeach)
+ Con_Printf("%c%4i%c%c%4i%c %s %s %s %s\n", isloaded ? '[' : ' ', (glsize + 1023) / 1024, isloaded ? ']' : ' ', glt->inputtexels ? '[' : ' ', (glt->inputdatasize + 1023) / 1024, glt->inputtexels ? ']' : ' ', isloaded ? "loaded" : " ", (glt->flags & TEXF_MIPMAP) ? "mip" : " ", (glt->flags & TEXF_ALPHA) ? "alpha" : " ", glt->identifier);
}
+ if (printpool)
+ Con_Printf("texturepool %10p total: %i (%.3fMB, %.3fMB original), uploaded %i (%.3fMB, %.3fMB original), upload on demand %i (%.3fMB, %.3fMB original)\n", pool, pooltotal, pooltotalt / 1048576.0, pooltotalp / 1048576.0, poolloaded, poolloadedt / 1048576.0, poolloadedp / 1048576.0, pooltotal - poolloaded, (pooltotalt - poolloadedt) / 1048576.0, (pooltotalp - poolloadedp) / 1048576.0);
+ sumtotal += pooltotal;
+ sumtotalt += pooltotalt;
+ sumtotalp += pooltotalp;
+ sumloaded += poolloaded;
+ sumloadedt += poolloadedt;
+ sumloadedp += poolloadedp;
}
- Con_Printf("%i textures, totalling %.3fMB, %i are (usually) unnecessary model skins totalling %.3fMB\n", numgltextures, t / 1048576.0, sc, s / 1048576.0);
+ if (printtotal)
+ Con_Printf("textures total: %i (%.3fMB, %.3fMB original), uploaded %i (%.3fMB, %.3fMB original), upload on demand %i (%.3fMB, %.3fMB original)\n", sumtotal, sumtotalt / 1048576.0, sumtotalp / 1048576.0, sumloaded, sumloadedt / 1048576.0, sumloadedp / 1048576.0, sumtotal - sumloaded, (sumtotalt - sumloadedt) / 1048576.0, (sumtotalp - sumloadedp) / 1048576.0);
}
-extern int buildnumber;
-
-char engineversion[40];
-
-void GL_UploadTexture (gltexture_t *glt);
-void gl_textures_start()
+static void R_TextureStats_f(void)
{
- int i;
- gltexture_t *glt;
- for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
- GL_UploadTexture(glt);
+ R_TextureStats_Print(true, true, true);
}
-void gl_textures_shutdown()
+static void r_textures_start(void)
{
+ // LordHavoc: allow any alignment
+ CHECKGLERROR
+ qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);CHECKGLERROR
+ qglPixelStorei(GL_PACK_ALIGNMENT, 1);CHECKGLERROR
+
+ texturemempool = Mem_AllocPool("texture management", 0, NULL);
+
+ // Disable JPEG screenshots if the DLL isn't loaded
+ if (! JPEG_OpenLibrary ())
+ Cvar_SetValueQuick (&scr_screenshot_jpeg, 0);
+ // TODO: support png screenshots?
+ PNG_OpenLibrary ();
}
-void GL_Textures_Init (void)
+static void r_textures_shutdown(void)
{
- Cmd_AddCommand("r_texturestats", GL_TextureStats_f);
- Cvar_RegisterVariable (&gl_max_size);
- Cvar_RegisterVariable (&gl_picmip);
- Cvar_RegisterVariable (&gl_lerpimages);
- Cvar_RegisterVariable (&r_upload);
-#ifdef NORENDER
- r_upload.value = 0;
-#endif
+ rtexturepool_t *temp;
- // 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");
+ JPEG_CloseLibrary ();
- Cmd_AddCommand ("gl_texturemode", &Draw_TextureMode_f);
+ while(gltexturepoolchain)
+ {
+ temp = (rtexturepool_t *) gltexturepoolchain;
+ R_FreeTexturePool(&temp);
+ }
- R_RegisterModule("GL_Textures", gl_textures_start, gl_textures_shutdown);
+ resizebuffersize = 0;
+ texturebuffersize = 0;
+ resizebuffer = NULL;
+ colorconvertbuffer = NULL;
+ texturebuffer = NULL;
+ Mem_FreePool(&texturemempool);
}
-/*
-================
-GL_FindTexture
-================
-*/
-int GL_FindTexture (char *identifier)
+static void r_textures_newmap(void)
{
- int i;
- gltexture_t *glt;
+}
- for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
- {
- if (!strcmp (identifier, glt->identifier))
- return gltextures[i].texnum;
- }
+void R_Textures_Init (void)
+{
+ Cmd_AddCommand("gl_texturemode", &GL_TextureMode_f, "set texture filtering mode (GL_NEAREST, GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, etc)");
+ Cmd_AddCommand("r_texturestats", R_TextureStats_f, "print information about all loaded textures and some statistics");
+ Cvar_RegisterVariable (&gl_max_size);
+ Cvar_RegisterVariable (&gl_picmip);
+ Cvar_RegisterVariable (&r_lerpimages);
+ Cvar_RegisterVariable (&r_precachetextures);
+ Cvar_RegisterVariable (&gl_texture_anisotropy);
- return -1;
+ R_RegisterModule("R_Textures", r_textures_start, r_textures_shutdown, r_textures_newmap);
}
-void GL_ResampleTextureLerpLine (byte *in, byte *out, int inwidth, int outwidth)
+void R_Textures_Frame (void)
{
- int j, xi, oldx = 0, f, fstep, l1, l2, endx;
- fstep = (int) (inwidth*65536.0f/outwidth);
- endx = (inwidth-1);
- for (j = 0,f = 0;j < outwidth;j++, f += fstep)
+ static int old_aniso = 0;
+
+ // could do procedural texture animation here, if we keep track of which
+ // textures were accessed this frame...
+
+ // free the resize buffers
+ resizebuffersize = 0;
+ if (resizebuffer)
{
- xi = (int) f >> 16;
- if (xi != oldx)
- {
- in += (xi - oldx) * 4;
- oldx = xi;
- }
- if (xi < endx)
- {
- l2 = f & 0xFFFF;
- l1 = 0x10000 - l2;
- *out++ = (byte) ((in[0] * l1 + in[4] * l2) >> 16);
- *out++ = (byte) ((in[1] * l1 + in[5] * l2) >> 16);
- *out++ = (byte) ((in[2] * l1 + in[6] * l2) >> 16);
- *out++ = (byte) ((in[3] * l1 + in[7] * l2) >> 16);
- }
- else // last pixel of the line has no pixel to lerp to
- {
- *out++ = in[0];
- *out++ = in[1];
- *out++ = in[2];
- *out++ = in[3];
- }
+ Mem_Free(resizebuffer);
+ resizebuffer = NULL;
+ }
+ if (colorconvertbuffer)
+ {
+ Mem_Free(colorconvertbuffer);
+ colorconvertbuffer = NULL;
}
-}
-/*
-================
-GL_ResampleTexture
-================
-*/
-void GL_ResampleTexture (void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
-{
- if (gl_lerpimages.value)
+ if (old_aniso != gl_texture_anisotropy.integer)
{
- int i, j, yi, oldy, f, fstep, l1, l2, endy = (inheight-1);
- byte *inrow, *out, *row1, *row2;
- out = outdata;
- fstep = (int) (inheight*65536.0f/outheight);
+ gltexture_t *glt;
+ gltexturepool_t *pool;
+ GLint oldbindtexnum;
+
+ old_aniso = bound(1, gl_texture_anisotropy.integer, gl_max_anisotropy);
+
+ Cvar_SetValueQuick(&gl_texture_anisotropy, old_aniso);
- row1 = qmalloc(outwidth*4);
- row2 = qmalloc(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)
+ CHECKGLERROR
+ for (pool = gltexturepoolchain;pool;pool = pool->next)
{
- yi = f >> 16;
- if (yi != oldy)
- {
- inrow = (byte *)indata + inwidth*4*yi;
- if (yi == oldy+1)
- memcpy(row1, row2, outwidth*4);
- else
- GL_ResampleTextureLerpLine (inrow, row1, inwidth, outwidth);
- if (yi < endy)
- GL_ResampleTextureLerpLine (inrow + inwidth*4, row2, inwidth, outwidth);
- else
- memcpy(row2, row1, outwidth*4);
- oldy = yi;
- }
- if (yi < endy)
+ for (glt = pool->gltchain;glt;glt = glt->chain)
{
- l2 = f & 0xFFFF;
- l1 = 0x10000 - l2;
- for (j = 0;j < outwidth;j++)
+ // only update already uploaded images
+ if ((glt->flags & (GLTEXF_UPLOAD | TEXF_MIPMAP)) == TEXF_MIPMAP)
{
- *out++ = (byte) ((*row1++ * l1 + *row2++ * l2) >> 16);
- *out++ = (byte) ((*row1++ * l1 + *row2++ * l2) >> 16);
- *out++ = (byte) ((*row1++ * l1 + *row2++ * l2) >> 16);
- *out++ = (byte) ((*row1++ * l1 + *row2++ * l2) >> 16);
- }
- 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;
- }
- }
- qfree(row1);
- qfree(row2);
- }
- else
- {
- int i, j;
- unsigned frac, fracstep;
- byte *inrow, *out, *inpix;
- out = outdata;
+ qglGetIntegerv(gltexturetypebindingenums[glt->texturetype], &oldbindtexnum);CHECKGLERROR
- 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;
+ qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
+ qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MAX_ANISOTROPY_EXT, old_aniso);CHECKGLERROR
+
+ qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
+ }
}
}
}
}
-void GL_FreeTexels(gltexture_t *glt)
+void R_MakeResizeBufferBigger(int size)
{
- if (glt->texels[0])
- qfree(glt->texels[0]);
- glt->texels[0] = 0;
+ if (resizebuffersize < size)
+ {
+ resizebuffersize = size;
+ if (resizebuffer)
+ Mem_Free(resizebuffer);
+ if (colorconvertbuffer)
+ Mem_Free(colorconvertbuffer);
+ resizebuffer = (unsigned char *)Mem_Alloc(texturemempool, resizebuffersize);
+ colorconvertbuffer = (unsigned char *)Mem_Alloc(texturemempool, resizebuffersize);
+ if (!resizebuffer || !colorconvertbuffer)
+ Host_Error("R_Upload: out of memory");
+ }
}
-void GL_AllocTexels(gltexture_t *glt, int width, int height, int mipmapped)
+static void GL_SetupTextureParameters(int flags, int texturetype)
{
- int i, w, h, size, done;
- if (glt->texels[0])
- GL_FreeTexels(glt);
- glt->texelsize[0][0] = width;
- glt->texelsize[0][1] = height;
- if (mipmapped)
+ int textureenum = gltexturetypeenums[texturetype];
+ int wrapmode = ((flags & TEXF_CLAMP) && gl_support_clamptoedge) ? GL_CLAMP_TO_EDGE : GL_REPEAT;
+
+ CHECKGLERROR
+
+ if (gl_support_anisotropy && (flags & TEXF_MIPMAP))
+ {
+ int aniso = bound(1, gl_texture_anisotropy.integer, gl_max_anisotropy);
+ if (gl_texture_anisotropy.integer != aniso)
+ Cvar_SetValueQuick(&gl_texture_anisotropy, aniso);
+ qglTexParameteri(textureenum, GL_TEXTURE_MAX_ANISOTROPY_EXT, aniso);CHECKGLERROR
+ }
+ qglTexParameteri(textureenum, GL_TEXTURE_WRAP_S, wrapmode);CHECKGLERROR
+ qglTexParameteri(textureenum, GL_TEXTURE_WRAP_T, wrapmode);CHECKGLERROR
+ if (gltexturetypedimensions[texturetype] >= 3)
+ {
+ qglTexParameteri(textureenum, GL_TEXTURE_WRAP_R, wrapmode);CHECKGLERROR
+ }
+
+ CHECKGLERROR
+ if (flags & TEXF_FORCENEAREST)
{
- size = 0;
- w = width;h = height;
- i = 0;
- done = false;
- for (i = 0;i < MAXMIPS;i++)
+ if (flags & TEXF_MIPMAP)
{
- glt->texelsize[i][0] = w;
- glt->texelsize[i][1] = h;
- glt->texels[i] = (void *)size;
- size += w*h*4;
- if (w > 1)
+ qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);CHECKGLERROR
+ }
+ else
+ {
+ qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST);CHECKGLERROR
+ }
+ qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_NEAREST);CHECKGLERROR
+ }
+ else if (flags & TEXF_FORCELINEAR)
+ {
+ if (flags & TEXF_MIPMAP)
+ {
+ if (gl_filter_min == GL_NEAREST_MIPMAP_LINEAR || gl_filter_min == GL_LINEAR_MIPMAP_LINEAR)
{
- w >>= 1;
- if (h > 1)
- h >>= 1;
+ qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);CHECKGLERROR
}
- else if (h > 1)
- h >>= 1;
else
{
- i++;
- break;
+ qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);CHECKGLERROR
}
}
- glt->totaltexels = size;
- while (i < MAXMIPS)
- glt->texels[i++] = NULL;
- glt->texels[0] = qmalloc(size);
- for (i = 1;i < MAXMIPS && glt->texels[i];i++)
- glt->texels[i] += (int) glt->texels[0];
+ else
+ {
+ qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR);CHECKGLERROR
+ }
+ qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_LINEAR);CHECKGLERROR
}
else
{
- size = width*height*4;
- glt->totaltexels = size;
- glt->texels[0] = qmalloc(size);
- for (i = 1;i < MAXMIPS;i++)
- glt->texels[i] = NULL;
+ if (flags & TEXF_MIPMAP)
+ {
+ qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_min);CHECKGLERROR
+ }
+ else
+ {
+ qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_mag);CHECKGLERROR
+ }
+ qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, gl_filter_mag);CHECKGLERROR
}
- if (!glt->texels[0])
- Sys_Error("GL_AllocTexels: out of memory\n");
+
+ CHECKGLERROR
}
-// in can be the same as out
-void GL_MipReduce(byte *in, byte *out, int width, int height, int destwidth, int destheight)
+static void R_Upload(gltexture_t *glt, unsigned char *data, int fragx, int fragy, int fragz, int fragwidth, int fragheight, int fragdepth)
{
- int x, y, width2, height2, nextrow;
- if (width > destwidth)
+ int i, mip, width, height, depth;
+ GLint oldbindtexnum;
+ unsigned char *prevbuffer;
+ prevbuffer = data;
+
+ CHECKGLERROR
+
+ // we need to restore the texture binding after finishing the upload
+ qglGetIntegerv(gltexturetypebindingenums[glt->texturetype], &oldbindtexnum);CHECKGLERROR
+ qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
+
+ // these are rounded up versions of the size to do better resampling
+ for (width = 1;width < glt->inputwidth ;width <<= 1);
+ for (height = 1;height < glt->inputheight;height <<= 1);
+ for (depth = 1;depth < glt->inputdepth ;depth <<= 1);
+
+ R_MakeResizeBufferBigger(width * height * depth * glt->sides * glt->bytesperpixel);
+ R_MakeResizeBufferBigger(fragwidth * fragheight * fragdepth * glt->sides * glt->bytesperpixel);
+
+ if (prevbuffer == NULL)
+ {
+ memset(resizebuffer, 0, fragwidth * fragheight * fragdepth * glt->bytesperpixel);
+ prevbuffer = resizebuffer;
+ }
+ else if (glt->textype->textype == TEXTYPE_PALETTE)
{
- if (height > destheight)
+ // promote paletted to RGBA, so we only have to worry about RGB and
+ // RGBA in the rest of this code
+ Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, fragwidth * fragheight * fragdepth * glt->sides, glt->palette);
+ prevbuffer = colorconvertbuffer;
+ }
+
+ if ((glt->flags & (TEXF_MIPMAP | TEXF_PICMIP | GLTEXF_UPLOAD)) == 0 && glt->inputwidth == glt->tilewidth && glt->inputheight == glt->tileheight && glt->inputdepth == glt->tiledepth)
+ {
+ // update a portion of the image
+ switch(glt->texturetype)
{
- // reduce both
- width2 = width >> 1;
- height2 = height >> 1;
- nextrow = width << 2;
- for (y = 0;y < height2;y++)
+ case GLTEXTURETYPE_1D:
+ qglTexSubImage1D(GL_TEXTURE_1D, 0, fragx, fragwidth, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
+ break;
+ case GLTEXTURETYPE_2D:
+ qglTexSubImage2D(GL_TEXTURE_2D, 0, fragx, fragy, fragwidth, fragheight, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
+ break;
+ case GLTEXTURETYPE_3D:
+ qglTexSubImage3D(GL_TEXTURE_3D, 0, fragx, fragy, fragz, fragwidth, fragheight, fragdepth, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
+ break;
+ default:
+ Host_Error("R_Upload: partial update of type other than 1D, 2D, or 3D");
+ break;
+ }
+ }
+ else
+ {
+ if (fragx || fragy || fragz || glt->inputwidth != fragwidth || glt->inputheight != fragheight || glt->inputdepth != fragdepth)
+ Host_Error("R_Upload: partial update not allowed on initial upload or in combination with PICMIP or MIPMAP\n");
+
+ // upload the image for the first time
+ glt->flags &= ~GLTEXF_UPLOAD;
+
+ // cubemaps contain multiple images and thus get processed a bit differently
+ if (glt->texturetype != GLTEXTURETYPE_CUBEMAP)
+ {
+ if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
{
- for (x = 0;x < width2;x++)
- {
- out[0] = (byte) ((in[0] + in[4] + in[nextrow ] + in[nextrow+4]) >> 2);
- out[1] = (byte) ((in[1] + in[5] + in[nextrow+1] + in[nextrow+5]) >> 2);
- out[2] = (byte) ((in[2] + in[6] + in[nextrow+2] + in[nextrow+6]) >> 2);
- out[3] = (byte) ((in[3] + in[7] + in[nextrow+3] + in[nextrow+7]) >> 2);
- out += 4;
- in += 8;
- }
- in += nextrow; // skip a line
+ Image_Resample(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, glt->bytesperpixel, r_lerpimages.integer);
+ prevbuffer = resizebuffer;
+ }
+ // picmip/max_size
+ while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
+ {
+ Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth, glt->bytesperpixel);
+ prevbuffer = resizebuffer;
}
}
- else
+ mip = 0;
+ switch(glt->texturetype)
{
- // reduce width
- width2 = width >> 1;
- for (y = 0;y < height;y++)
+ case GLTEXTURETYPE_1D:
+ qglTexImage1D(GL_TEXTURE_1D, mip++, glt->glinternalformat, width, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
+ if (glt->flags & TEXF_MIPMAP)
{
- for (x = 0;x < width2;x++)
+ while (width > 1 || height > 1 || depth > 1)
{
- out[0] = (byte) ((in[0] + in[4]) >> 1);
- out[1] = (byte) ((in[1] + in[5]) >> 1);
- out[2] = (byte) ((in[2] + in[6]) >> 1);
- out[3] = (byte) ((in[3] + in[7]) >> 1);
- out += 4;
- in += 8;
+ Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->bytesperpixel);
+ prevbuffer = resizebuffer;
+ qglTexImage1D(GL_TEXTURE_1D, mip++, glt->glinternalformat, width, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
}
}
- }
- }
- else
- {
- if (height > destheight)
- {
- // reduce height
- height2 = height >> 1;
- nextrow = width << 2;
- for (y = 0;y < height2;y++)
+ break;
+ case GLTEXTURETYPE_2D:
+ qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
+ if (glt->flags & TEXF_MIPMAP)
{
- for (x = 0;x < width;x++)
+ while (width > 1 || height > 1 || depth > 1)
{
- out[0] = (byte) ((in[0] + in[nextrow ]) >> 1);
- out[1] = (byte) ((in[1] + in[nextrow+1]) >> 1);
- out[2] = (byte) ((in[2] + in[nextrow+2]) >> 1);
- out[3] = (byte) ((in[3] + in[nextrow+3]) >> 1);
- out += 4;
- in += 4;
+ Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->bytesperpixel);
+ prevbuffer = resizebuffer;
+ qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
}
- in += nextrow; // skip a line
}
+ break;
+ case GLTEXTURETYPE_3D:
+ qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
+ if (glt->flags & TEXF_MIPMAP)
+ {
+ while (width > 1 || height > 1 || depth > 1)
+ {
+ Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->bytesperpixel);
+ prevbuffer = resizebuffer;
+ qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
+ }
+ }
+ break;
+ case GLTEXTURETYPE_CUBEMAP:
+ // convert and upload each side in turn,
+ // from a continuous block of input texels
+ texturebuffer = prevbuffer;
+ for (i = 0;i < 6;i++)
+ {
+ prevbuffer = texturebuffer;
+ texturebuffer += glt->inputwidth * glt->inputheight * glt->inputdepth * glt->textype->inputbytesperpixel;
+ if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
+ {
+ Image_Resample(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, glt->bytesperpixel, r_lerpimages.integer);
+ prevbuffer = resizebuffer;
+ }
+ // picmip/max_size
+ while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
+ {
+ Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth, glt->bytesperpixel);
+ prevbuffer = resizebuffer;
+ }
+ mip = 0;
+ qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
+ if (glt->flags & TEXF_MIPMAP)
+ {
+ while (width > 1 || height > 1 || depth > 1)
+ {
+ Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->bytesperpixel);
+ prevbuffer = resizebuffer;
+ qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
+ }
+ }
+ }
+ break;
}
- else
- Sys_Error("GL_MipReduce: desired size already achieved\n");
+ GL_SetupTextureParameters(glt->flags, glt->texturetype);
}
+ qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
}
-void GL_UploadTexture (gltexture_t *glt)
+static void R_UploadTexture (gltexture_t *glt)
{
- int mip, width, height;
- if (!r_upload.value)
+ if (!(glt->flags & GLTEXF_UPLOAD))
return;
- glBindTexture(GL_TEXTURE_2D, glt->texnum);
- width = glt->width;
- height = glt->height;
- for (mip = 0;mip < MAXMIPS && glt->texels[mip];mip++)
- glTexImage2D(GL_TEXTURE_2D, mip, glt->alpha ? 4 : 3, glt->texelsize[mip][0], glt->texelsize[mip][1], 0, GL_RGBA, GL_UNSIGNED_BYTE, glt->texels[mip]);
- if (glt->mipmap)
- {
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
- }
- else
+
+ CHECKGLERROR
+ qglGenTextures(1, (GLuint *)&glt->texnum);CHECKGLERROR
+ R_Upload(glt, glt->inputtexels, 0, 0, 0, glt->inputwidth, glt->inputheight, glt->inputdepth);
+ if (glt->inputtexels)
{
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
+ Mem_Free(glt->inputtexels);
+ glt->inputtexels = NULL;
+ glt->flags |= GLTEXF_DESTROYED;
}
- glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+ else if (glt->flags & GLTEXF_DESTROYED)
+ Con_Printf("R_UploadTexture: Texture %s already uploaded and destroyed. Can not upload original image again. Uploaded blank texture.\n", glt->identifier);
}
-/*
-================
-GL_LoadTexture
-================
-*/
-int GL_LoadTexture (char *identifier, int width, int height, byte *data, qboolean mipmap, qboolean alpha, int bytesperpixel)
+static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int depth, int sides, int flags, int textype, int texturetype, const unsigned char *data, const unsigned int *palette)
{
- unsigned short crc;
- int i, width2, height2, width3, height3, w, h, mip;
- gltexture_t *glt;
+ int i, size;
+ gltexture_t *glt;
+ gltexturepool_t *pool = (gltexturepool_t *)rtexturepool;
+ textypeinfo_t *texinfo;
+
+ if (cls.state == ca_dedicated)
+ return NULL;
+
+ if (texturetype == GLTEXTURETYPE_CUBEMAP && !gl_texturecubemap)
+ {
+ Con_Printf ("R_LoadTexture: cubemap texture not supported by driver\n");
+ return NULL;
+ }
+ if (texturetype == GLTEXTURETYPE_3D && !gl_texture3d)
+ {
+ Con_Printf ("R_LoadTexture: 3d texture not supported by driver\n");
+ return NULL;
+ }
- if (isDedicated)
- return 1;
+ texinfo = R_GetTexTypeInfo(textype, flags);
+ size = width * height * depth * sides * texinfo->inputbytesperpixel;
+ if (size < 1)
+ {
+ Con_Printf ("R_LoadTexture: bogus texture size (%dx%dx%dx%dbppx%dsides = %d bytes)\n", width, height, depth, texinfo->inputbytesperpixel * 8, sides);
+ return NULL;
+ }
- // 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])
+ // clear the alpha flag if the texture has no transparent pixels
+ switch(textype)
{
- for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
+ case TEXTYPE_PALETTE:
+ if (flags & TEXF_ALPHA)
{
- if (!strcmp (identifier, glt->identifier))
+ flags &= ~TEXF_ALPHA;
+ if (data)
{
- // LordHavoc: everyone hates cache mismatchs, so I fixed it
- if (crc != glt->crc || width != glt->width || height != glt->height)
+ for (i = 0;i < size;i++)
{
- 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 (((unsigned char *)&palette[data[i]])[3] < 255)
+ {
+ flags |= TEXF_ALPHA;
+ break;
+ }
}
- 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:
- // calculate power of 2 size
- width2 = 1;while (width2 < width) width2 <<= 1;
- height2 = 1;while (height2 < height) height2 <<= 1;
- // calculate final size (mipmapped downward to this)
- width3 = width2 >> (int) gl_picmip.value;
- height3 = height2 >> (int) gl_picmip.value;
- while (width3 > (int) gl_max_size.value) width3 >>= 1;
- while (height3 > (int) gl_max_size.value) height3 >>= 1;
- if (width3 < 1) width3 = 1;
- if (height3 < 1) height3 = 1;
-
- // final storage
- GL_AllocTexels(glt, width3, height3, mipmap);
- 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;
- glt->alpha = false; // updated later
- if (width == width3 && height == height3) // perfect match
- {
- if (bytesperpixel == 1) // 8bit
- Image_Copy8bitRGBA(data, glt->texels[0], width*height, d_8to24table);
- else
- Image_CopyRGBAGamma(data, glt->texels[0], width*height);
- }
- else if (width == width2 && height == height2) // perfect match for top level, but needs to be reduced
- {
- byte *temptexels2;
- temptexels2 = qmalloc(width2*height2*4); // scaleup buffer
- if (bytesperpixel == 1) // 8bit
- Image_Copy8bitRGBA(data, temptexels2, width*height, d_8to24table);
- else
- Image_CopyRGBAGamma(data, temptexels2, width*height);
- while (width2 > width3 || height2 > height3)
+ break;
+ case TEXTYPE_RGB:
+ if (flags & TEXF_ALPHA)
+ Host_Error("R_LoadTexture: RGB has no alpha, don't specify TEXF_ALPHA");
+ break;
+ case TEXTYPE_RGBA:
+ if (flags & TEXF_ALPHA)
{
- w = width2;h = height2;
- if (width2 > width3) width2 >>= 1;
- if (height2 > height3) height2 >>= 1;
- if (width2 <= width3 && height2 <= height3) // size achieved
- GL_MipReduce(temptexels2, glt->texels[0], w, h, width3, height3);
- else
- GL_MipReduce(temptexels2, temptexels2, w, h, width3, height3);
- }
- qfree(temptexels2);
- }
- else // scaling...
- {
- byte *temptexels;
- // pre-scaleup buffer
- temptexels = qmalloc(width*height*4);
- if (bytesperpixel == 1) // 8bit
- Image_Copy8bitRGBA(data, temptexels, width*height, d_8to24table);
- else
- Image_CopyRGBAGamma(data, temptexels, width*height);
- if (width2 != width3 || height2 != height3) // reduced by gl_pic_mip or gl_max_size
- {
- byte *temptexels2;
- temptexels2 = qmalloc(width2*height2*4); // scaleup buffer
- GL_ResampleTexture(temptexels, width, height, temptexels2, width2, height2);
- while (width2 > width3 || height2 > height3)
+ flags &= ~TEXF_ALPHA;
+ if (data)
{
- w = width2;h = height2;
- if (width2 > width3) width2 >>= 1;
- if (height2 > height3) height2 >>= 1;
- if (width2 <= width3 && height2 <= height3) // size achieved
- GL_MipReduce(temptexels2, glt->texels[0], w, h, width3, height3);
- else
- GL_MipReduce(temptexels2, temptexels2, w, h, width3, height3);
+ for (i = 3;i < size;i += 4)
+ {
+ if (data[i] < 255)
+ {
+ flags |= TEXF_ALPHA;
+ break;
+ }
+ }
}
- qfree(temptexels2);
}
- else // copy directly
- GL_ResampleTexture(temptexels, width, height, glt->texels[0], width2, height2);
- qfree(temptexels);
+ break;
+ default:
+ Host_Error("R_LoadTexture: unknown texture type");
}
- if (alpha)
+
+ glt = (gltexture_t *)Mem_Alloc(texturemempool, sizeof(gltexture_t));
+ if (identifier)
+ strlcpy (glt->identifier, identifier, sizeof(glt->identifier));
+ glt->pool = pool;
+ glt->chain = pool->gltchain;
+ pool->gltchain = glt;
+ glt->inputwidth = width;
+ glt->inputheight = height;
+ glt->inputdepth = depth;
+ glt->flags = flags | GLTEXF_UPLOAD;
+ glt->textype = texinfo;
+ glt->texturetype = texturetype;
+ glt->inputdatasize = size;
+ glt->palette = palette;
+ glt->glinternalformat = texinfo->glinternalformat;
+ glt->glformat = texinfo->glformat;
+ glt->bytesperpixel = texinfo->internalbytesperpixel;
+ glt->sides = glt->texturetype == GLTEXTURETYPE_CUBEMAP ? 6 : 1;
+ glt->texnum = -1;
+
+ if (data)
{
- byte *in = glt->texels[0] + 3;
- for (i = 0;i < width*height;i++, in += 4)
- if (*in < 255)
- {
- glt->alpha = true;
- break;
- }
+ glt->inputtexels = (unsigned char *)Mem_Alloc(texturemempool, size);
+ memcpy(glt->inputtexels, data, size);
}
- // this loop is skipped if there are no mipmaps to generate
- for (mip = 1;mip < MAXMIPS && glt->texels[mip];mip++)
- GL_MipReduce(glt->texels[mip-1], glt->texels[mip], glt->texelsize[mip-1][0], glt->texelsize[mip-1][1], 1, 1);
- GL_UploadTexture(glt);
- GL_FreeTexels(glt);
+ else
+ glt->inputtexels = NULL;
-// if (bytesperpixel == 1) // 8bit
-// GL_Upload8 (data, width, height, mipmap, alpha);
-// else // 32bit
-// GL_Upload32 (data, width, height, mipmap, true);
+ GL_Texture_CalcImageSize(glt->texturetype, glt->flags, glt->inputwidth, glt->inputheight, glt->inputdepth, &glt->tilewidth, &glt->tileheight, &glt->tiledepth);
+ R_PrecacheTexture(glt);
- return glt->texnum;
+ return (rtexture_t *)glt;
}
-/*
-================
-GL_LoadPicTexture
-================
-*/
-int GL_LoadPicTexture (qpic_t *pic)
+rtexture_t *R_LoadTexture1D(rtexturepool_t *rtexturepool, const char *identifier, int width, const unsigned char *data, int textype, int flags, const unsigned int *palette)
{
- return GL_LoadTexture ("", pic->width, pic->height, pic->data, false, true, 1);
+ return R_SetupTexture(rtexturepool, identifier, width, 1, 1, 1, flags, textype, GLTEXTURETYPE_1D, data, palette);
}
-int GL_GetTextureSlots (int count)
+rtexture_t *R_LoadTexture2D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, const unsigned char *data, int textype, int flags, const unsigned int *palette)
{
- gltexture_t *glt, *first;
+ return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, flags, textype, GLTEXTURETYPE_2D, data, palette);
+}
- 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;
+rtexture_t *R_LoadTexture3D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int depth, const unsigned char *data, int textype, int flags, const unsigned int *palette)
+{
+ return R_SetupTexture(rtexturepool, identifier, width, height, depth, 1, flags, textype, GLTEXTURETYPE_3D, data, palette);
+}
+
+rtexture_t *R_LoadTextureCubeMap(rtexturepool_t *rtexturepool, const char *identifier, int width, const unsigned char *data, int textype, int flags, const unsigned int *palette)
+{
+ return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, flags, textype, GLTEXTURETYPE_CUBEMAP, data, palette);
+}
+
+int R_TextureHasAlpha(rtexture_t *rt)
+{
+ return rt ? (((gltexture_t *)rt)->flags & TEXF_ALPHA) != 0 : false;
+}
+
+int R_TextureWidth(rtexture_t *rt)
+{
+ return rt ? ((gltexture_t *)rt)->inputwidth : 0;
}
+
+int R_TextureHeight(rtexture_t *rt)
+{
+ return rt ? ((gltexture_t *)rt)->inputheight : 0;
+}
+
+void R_UpdateTexture(rtexture_t *rt, unsigned char *data, int x, int y, int width, int height)
+{
+ gltexture_t *glt;
+ if (rt == NULL)
+ Host_Error("R_UpdateTexture: no texture supplied");
+ if (data == NULL)
+ Host_Error("R_UpdateTexture: no data supplied");
+ glt = (gltexture_t *)rt;
+
+ // we need it to be uploaded before we can update a part of it
+ if (glt->flags & GLTEXF_UPLOAD)
+ R_UploadTexture(glt);
+
+ // update part of the texture
+ R_Upload(glt, data, x, y, 0, width, height, 1);
+}
+
projects / xonotic / darkplaces.git / blobdiff