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gl_texmanager.cpp
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gl_texmanager.cpp
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/** @file gl_texmanager.cpp GL-Texture management
*
* @todo This file needs to be split into smaller portions.
*
* @authors Copyright © 1999-2013 Jaakko Keränen <jaakko.keranen@iki.fi>
* @authors Copyright © 2005-2013 Daniel Swanson <danij@dengine.net>
* @authors Copyright © 2002 Graham Jackson <no contact email published>
*
* @par License
* GPL: http://www.gnu.org/licenses/gpl.html
*
* <small>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 the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA</small>
*/
#include <cstdlib>
#include <cstring> // memset, memcpy
#include <cctype>
#include <cmath>
#ifdef UNIX
# include "de_platform.h"
#endif
#include "de_base.h"
#include "de_console.h"
#include "de_system.h"
#include "de_filesys.h"
#include "de_graphics.h"
#include "de_render.h"
#include "de_resource.h"
#include "de_play.h"
#include "de_ui.h"
#include "def_main.h"
#include "resource/hq2x.h"
#include <QSize>
#include <de/ByteRefArray>
#include <de/mathutil.h>
#include <de/memory.h>
#include <de/memoryzone.h>
using namespace de;
int mipmapping = 5;
int filterUI = 1;
int texQuality = TEXQ_BEST;
enum uploadcontentmethod_t
{
METHOD_IMMEDIATE = 0,
METHOD_DEFERRED
};
struct texturevariantspecificationlist_node_t
{
texturevariantspecificationlist_node_t *next;
texturevariantspecification_t *spec;
};
typedef texturevariantspecificationlist_node_t variantspecificationlist_t;
D_CMD(LowRes);
D_CMD(MipMap);
D_CMD(TexReset);
void GL_DoResetDetailTextures();
void GL_DoTexReset();
void GL_DoUpdateTexGamma();
void GL_DoUpdateTexParams();
static int hashDetailVariantSpecification(detailvariantspecification_t const &spec);
static TexSource loadExternalTexture(image_t &image, String searchPath, String optionalSuffix = "");
static TexSource loadFlat(image_t &image, de::FileHandle &file);
static TexSource loadPatch(image_t &image, de::FileHandle &file, int tclass = 0, int tmap = 0, int border = 0);
static TexSource loadDetail(image_t &image, de::FileHandle &file);
static TexSource loadRaw(image_t &image, rawtex_t const &raw);
static TexSource loadPatchComposite(image_t &image, Texture const &tex,
bool zeroMask = false, bool useZeroOriginIfOneComponent = false);
int ratioLimit = 0; // Zero if none.
boolean fillOutlines = true;
int useSmartFilter = 0; // Smart filter mode (cvar: 1=hq2x)
int filterSprites = true;
int texMagMode = 1; // Linear.
int texAniso = -1; // Use best.
boolean noHighResTex = false;
boolean noHighResPatches = false;
boolean highResWithPWAD = false;
byte loadExtAlways = false; // Always check for extres (cvar)
float texGamma = 0;
int glmode[6] = // Indexed by 'mipmapping'.
{
GL_NEAREST,
GL_LINEAR,
GL_NEAREST_MIPMAP_NEAREST,
GL_LINEAR_MIPMAP_NEAREST,
GL_NEAREST_MIPMAP_LINEAR,
GL_LINEAR_MIPMAP_LINEAR
};
// Names of the dynamic light textures.
DGLuint lightingTextures[NUM_LIGHTING_TEXTURES];
// Names of the flare textures (halos).
DGLuint sysFlareTextures[NUM_SYSFLARE_TEXTURES];
static boolean initedOk = false; // Init done.
static variantspecificationlist_t *variantSpecs;
/// @c TST_DETAIL type specifications are stored separately into a set of
/// buckets. Bucket selection is determined by their quantized contrast value.
#define DETAILVARIANT_CONTRAST_HASHSIZE (DETAILTEXTURE_CONTRAST_QUANTIZATION_FACTOR+1)
static variantspecificationlist_t *detailVariantSpecs[DETAILVARIANT_CONTRAST_HASHSIZE];
void GL_TexRegister()
{
C_VAR_INT ("rend-tex", &renderTextures, CVF_NO_ARCHIVE, 0, 2);
C_VAR_INT ("rend-tex-detail", &r_detail, 0, 0, 1);
C_VAR_INT ("rend-tex-detail-multitex", &useMultiTexDetails, 0, 0, 1);
C_VAR_FLOAT ("rend-tex-detail-scale", &detailScale, CVF_NO_MIN | CVF_NO_MAX, 0, 0);
C_VAR_FLOAT2("rend-tex-detail-strength", &detailFactor, 0, 0, 10, GL_DoResetDetailTextures);
C_VAR_BYTE2 ("rend-tex-external-always", &loadExtAlways, 0, 0, 1, GL_DoTexReset);
C_VAR_INT ("rend-tex-filter-anisotropic", &texAniso, 0, -1, 4);
C_VAR_INT ("rend-tex-filter-mag", &texMagMode, 0, 0, 1);
C_VAR_INT2 ("rend-tex-filter-smart", &useSmartFilter, 0, 0, 1, GL_DoTexReset);
C_VAR_INT ("rend-tex-filter-sprite", &filterSprites, 0, 0, 1);
C_VAR_INT ("rend-tex-filter-ui", &filterUI, 0, 0, 1);
C_VAR_FLOAT2("rend-tex-gamma", &texGamma, 0, 0, 1, GL_DoUpdateTexGamma);
C_VAR_INT2 ("rend-tex-mipmap", &mipmapping, CVF_PROTECTED, 0, 5, GL_DoTexReset);
C_VAR_INT2 ("rend-tex-quality", &texQuality, 0, 0, 8, GL_DoTexReset);
C_CMD_FLAGS ("lowres", "", LowRes, CMDF_NO_DEDICATED);
C_CMD_FLAGS ("mipmap", "i", MipMap, CMDF_NO_DEDICATED);
C_CMD_FLAGS ("texreset", "", TexReset, CMDF_NO_DEDICATED);
}
GLint GL_MinFilterForVariantSpec(variantspecification_t const &spec)
{
if(spec.minFilter >= 0) // Constant logical value.
{
return (spec.mipmapped? GL_NEAREST_MIPMAP_NEAREST : GL_NEAREST) + spec.minFilter;
}
// "No class" preference.
return spec.mipmapped? glmode[mipmapping] : GL_LINEAR;
}
GLint GL_MagFilterForVariantSpec(variantspecification_t const &spec)
{
if(spec.magFilter >= 0) // Constant logical value.
{
return GL_NEAREST + spec.magFilter;
}
// Preference for texture class id.
switch(abs(spec.magFilter)-1)
{
case 1: // Sprite class.
return filterSprites? GL_LINEAR : GL_NEAREST;
case 2: // UI class.
return filterUI? GL_LINEAR : GL_NEAREST;
default: // "No class" preference.
return glmode[texMagMode];
}
}
int GL_LogicalAnisoLevelForVariantSpec(variantspecification_t const &spec)
{
return spec.anisoFilter < 0? texAniso : spec.anisoFilter;
}
static void unlinkVariantSpecification(texturevariantspecification_t &spec)
{
variantspecificationlist_t **listHead;
DENG_ASSERT(initedOk);
// Select list head according to variant specification type.
switch(spec.type)
{
case TST_GENERAL: listHead = &variantSpecs; break;
case TST_DETAIL: {
int hash = hashDetailVariantSpecification(TS_DETAIL(spec));
listHead = &detailVariantSpecs[hash];
break; }
default:
Con_Error("unlinkVariantSpecification: Invalid spec type %i.", spec.type);
exit(1); // Unreachable.
}
if(*listHead)
{
texturevariantspecificationlist_node_t *node = 0;
if((*listHead)->spec == &spec)
{
node = (*listHead);
*listHead = (*listHead)->next;
}
else
{
// Find the previous node.
texturevariantspecificationlist_node_t *prevNode = (*listHead);
while(prevNode->next && prevNode->next->spec != &spec)
{
prevNode = prevNode->next;
}
if(prevNode)
{
node = prevNode->next;
prevNode->next = prevNode->next->next;
}
}
M_Free(node);
}
}
static void destroyVariantSpecification(texturevariantspecification_t &spec)
{
unlinkVariantSpecification(spec);
if(spec.type == TST_GENERAL && (TS_GENERAL(spec).flags & TSF_HAS_COLORPALETTE_XLAT))
{
M_Free(TS_GENERAL(spec).translated);
}
M_Free(&spec);
}
static texturevariantspecification_t *copyVariantSpecification(
texturevariantspecification_t const &tpl)
{
texturevariantspecification_t *spec = (texturevariantspecification_t *) M_Malloc(sizeof(*spec));
if(!spec) Con_Error("Textures::copyVariantSpecification: Failed on allocation of %lu bytes for new TextureVariantSpecification.", (unsigned long) sizeof(*spec));
std::memcpy(spec, &tpl, sizeof(texturevariantspecification_t));
if(TS_GENERAL(tpl).flags & TSF_HAS_COLORPALETTE_XLAT)
{
colorpalettetranslationspecification_t *cpt = (colorpalettetranslationspecification_t *) M_Malloc(sizeof(*cpt));
if(!cpt) Con_Error("Textures::copyVariantSpecification: Failed on allocation of %lu bytes for new ColorPaletteTranslationSpecification.", (unsigned long) sizeof(*cpt));
std::memcpy(cpt, TS_GENERAL(tpl).translated, sizeof(colorpalettetranslationspecification_t));
TS_GENERAL(*spec).translated = cpt;
}
return spec;
}
static texturevariantspecification_t *copyDetailVariantSpecification(
texturevariantspecification_t const &tpl)
{
texturevariantspecification_t *spec = (texturevariantspecification_t *) M_Malloc(sizeof(*spec));
if(!spec) Con_Error("Textures::copyDetailVariantSpecification: Failed on allocation of %lu bytes for new TextureVariantSpecification.", (unsigned long) sizeof(*spec));
std::memcpy(spec, &tpl, sizeof(texturevariantspecification_t));
return spec;
}
static colorpalettetranslationspecification_t *applyColorPaletteTranslationSpecification(
colorpalettetranslationspecification_t *spec, int tClass, int tMap)
{
DENG_ASSERT(initedOk && spec);
LOG_AS("applyColorPaletteTranslationSpecification");
spec->tClass = MAX_OF(0, tClass);
spec->tMap = MAX_OF(0, tMap);
#if _DEBUG
if(0 == tClass && 0 == tMap)
LOG_WARNING("Applied unnecessary zero-translation (tClass:0 tMap:0).");
#endif
return spec;
}
static variantspecification_t &applyVariantSpecification(
variantspecification_t &spec, texturevariantusagecontext_t tc, int flags,
byte border, colorpalettetranslationspecification_t *colorPaletteTranslationSpec,
int wrapS, int wrapT, int minFilter, int magFilter, int anisoFilter, boolean mipmapped,
boolean gammaCorrection, boolean noStretch, boolean toAlpha)
{
DENG_ASSERT(initedOk && (tc == TC_UNKNOWN || VALID_TEXTUREVARIANTUSAGECONTEXT(tc)));
flags &= ~TSF_INTERNAL_MASK;
spec.context = tc;
spec.flags = flags;
spec.border = (flags & TSF_UPSCALE_AND_SHARPEN)? 1 : border;
spec.mipmapped = mipmapped;
spec.wrapS = wrapS;
spec.wrapT = wrapT;
spec.minFilter = MINMAX_OF(-1, minFilter, spec.mipmapped? 3:1);
spec.magFilter = MINMAX_OF(-3, magFilter, 1);
spec.anisoFilter = MINMAX_OF(-1, anisoFilter, 4);
spec.gammaCorrection = gammaCorrection;
spec.noStretch = noStretch;
spec.toAlpha = toAlpha;
if(colorPaletteTranslationSpec)
{
spec.flags |= TSF_HAS_COLORPALETTE_XLAT;
spec.translated = colorPaletteTranslationSpec;
}
else
{
spec.translated = NULL;
}
return spec;
}
static detailvariantspecification_t &applyDetailVariantSpecification(
detailvariantspecification_t &spec, float contrast)
{
int const quantFactor = DETAILTEXTURE_CONTRAST_QUANTIZATION_FACTOR;
spec.contrast = 255 * (int)MINMAX_OF(0, contrast * quantFactor + .5f, quantFactor) * (1 / float(quantFactor));
return spec;
}
static int hashDetailVariantSpecification(detailvariantspecification_t const &spec)
{
return (spec.contrast * (1/255.f) * DETAILTEXTURE_CONTRAST_QUANTIZATION_FACTOR + .5f);
}
static texturevariantspecification_t &linkVariantSpecification(
texturevariantspecificationtype_t type, texturevariantspecification_t &spec)
{
texturevariantspecificationlist_node_t *node;
DENG_ASSERT(initedOk && VALID_TEXTUREVARIANTSPECIFICATIONTYPE(type));
node = (texturevariantspecificationlist_node_t *) M_Malloc(sizeof(*node));
if(!node) Con_Error("Textures::linkVariantSpecification: Failed on allocation of %lu bytes for new TextureVariantSpecificationListNode.", (unsigned long) sizeof(*node));
node->spec = &spec;
switch(type)
{
case TST_GENERAL:
node->next = variantSpecs;
variantSpecs = (variantspecificationlist_t *)node;
break;
case TST_DETAIL: {
int hash = hashDetailVariantSpecification(TS_DETAIL(spec));
node->next = detailVariantSpecs[hash];
detailVariantSpecs[hash] = (variantspecificationlist_t *)node;
break; }
}
return spec;
}
static texturevariantspecification_t *findVariantSpecification(
texturevariantspecificationtype_t type, texturevariantspecification_t const &tpl,
bool canCreate)
{
texturevariantspecificationlist_node_t *node;
DENG_ASSERT(initedOk && VALID_TEXTUREVARIANTSPECIFICATIONTYPE(type));
// Select list head according to variant specification type.
switch(type)
{
case TST_GENERAL: node = variantSpecs; break;
case TST_DETAIL: {
int hash = hashDetailVariantSpecification(TS_DETAIL(tpl));
node = detailVariantSpecs[hash];
break; }
default:
Con_Error("findVariantSpecification: Invalid spec type %i.", type);
exit(1); // Unreachable.
}
// Do we already have a concrete version of the template specification?
for(; node; node = node->next)
{
if(TextureVariantSpec_Compare(node->spec, &tpl))
return node->spec;
}
// Not found, can we create?
if(canCreate)
switch(type)
{
case TST_GENERAL: return &linkVariantSpecification(type, *copyVariantSpecification(tpl));
case TST_DETAIL: return &linkVariantSpecification(type, *copyDetailVariantSpecification(tpl));
}
return NULL;
}
static texturevariantspecification_t *getVariantSpecificationForContext(
texturevariantusagecontext_t tc, int flags, byte border, int tClass,
int tMap, int wrapS, int wrapT, int minFilter, int magFilter, int anisoFilter,
boolean mipmapped, boolean gammaCorrection, boolean noStretch, boolean toAlpha)
{
static texturevariantspecification_t tpl;
static colorpalettetranslationspecification_t cptTpl;
boolean haveCpt = false;
DENG_ASSERT(initedOk);
tpl.type = TST_GENERAL;
if(0 != tClass || 0 != tMap)
{
// A color palette translation spec is required.
applyColorPaletteTranslationSpecification(&cptTpl, tClass, tMap);
haveCpt = true;
}
applyVariantSpecification(TS_GENERAL(tpl), tc, flags, border, haveCpt? &cptTpl : NULL,
wrapS, wrapT, minFilter, magFilter, anisoFilter, mipmapped, gammaCorrection,
noStretch, toAlpha);
// Retrieve a concrete version of the rationalized specification.
return findVariantSpecification(tpl.type, tpl, true);
}
static texturevariantspecification_t *getDetailVariantSpecificationForContext(
float contrast)
{
static texturevariantspecification_t tpl;
DENG_ASSERT(initedOk);
tpl.type = TST_DETAIL;
applyDetailVariantSpecification(TS_DETAIL(tpl), contrast);
return findVariantSpecification(tpl.type, tpl, true);
}
static void emptyVariantSpecificationList(variantspecificationlist_t *list)
{
texturevariantspecificationlist_node_t* node = (texturevariantspecificationlist_node_t *) list;
DENG_ASSERT(initedOk);
while(node)
{
texturevariantspecificationlist_node_t *next = node->next;
destroyVariantSpecification(*node->spec);
node = next;
}
}
static bool variantSpecInUse(texturevariantspecification_t const &spec)
{
foreach(Texture *texture, App_Textures().all())
foreach(TextureVariant *variant, texture->variants())
{
if(&variant->spec() == &spec)
{
return true; // Found one; stop.
}
}
return false;
}
static int pruneUnusedVariantSpecificationsInList(variantspecificationlist_t *list)
{
texturevariantspecificationlist_node_t *node = list;
int numPruned = 0;
while(node)
{
texturevariantspecificationlist_node_t *next = node->next;
if(!variantSpecInUse(*node->spec))
{
destroyVariantSpecification(*node->spec);
++numPruned;
}
node = next;
}
return numPruned;
}
static int pruneUnusedVariantSpecifications(texturevariantspecificationtype_t specType)
{
DENG_ASSERT(initedOk);
switch(specType)
{
case TST_GENERAL: return pruneUnusedVariantSpecificationsInList(variantSpecs);
case TST_DETAIL: {
int numPruned = 0;
for(int i = 0; i < DETAILVARIANT_CONTRAST_HASHSIZE; ++i)
{
numPruned += pruneUnusedVariantSpecificationsInList(detailVariantSpecs[i]);
}
return numPruned; }
default:
Con_Error("Textures::pruneUnusedVariantSpecifications: Invalid variant spec type %i.", (int) specType);
exit(1); // Unreachable.
}
}
static void destroyVariantSpecifications()
{
DENG_ASSERT(initedOk);
emptyVariantSpecificationList(variantSpecs); variantSpecs = 0;
for(int i = 0; i < DETAILVARIANT_CONTRAST_HASHSIZE; ++i)
{
emptyVariantSpecificationList(detailVariantSpecs[i]); detailVariantSpecs[i] = 0;
}
}
static uploadcontentmethod_t chooseContentUploadMethod(texturecontent_t const &content)
{
// Must the operation be carried out immediately?
if((content.flags & TXCF_NEVER_DEFER) || !BusyMode_Active())
{
return METHOD_IMMEDIATE;
}
// We can defer.
return METHOD_DEFERRED;
}
static int releaseVariantGLTexture(TextureVariant &variant, texturevariantspecification_t *spec = 0)
{
if(!spec || spec == &variant.spec())
{
if(variant.isPrepared())
{
// Delete and mark it not-loaded.
DGLuint glName = variant.glName();
glDeleteTextures(1, (GLuint const *) &glName);
variant.setGLName(0);
}
if(spec) return true; // We're done.
}
return 0; // Continue iteration.
}
static void uploadContent(uploadcontentmethod_t uploadMethod, texturecontent_t const &content)
{
if(METHOD_IMMEDIATE == uploadMethod)
{
// Do this right away. No need to take a copy.
GL_UploadTextureContent(content);
return;
}
GL_DeferTextureUpload(&content);
}
static uploadcontentmethod_t uploadContentForVariant(uploadcontentmethod_t uploadMethod,
texturecontent_t const &content)
{
if(!novideo)
{
uploadContent(uploadMethod, content);
}
return uploadMethod;
}
static void uploadContentUnmanaged(uploadcontentmethod_t uploadMethod,
texturecontent_t const &content)
{
LOG_AS("uploadContentUnmanaged");
if(novideo) return;
if(METHOD_IMMEDIATE == uploadMethod)
{
#ifdef _DEBUG
LOG_VERBOSE("Uploading texture (%i:%ix%i) while not busy! Should be precached in busy mode?")
<< content.name << content.width << content.height;
#endif
}
uploadContent(uploadMethod, content);
}
static TexSource loadSourceImage(Texture const &tex,
texturevariantspecification_t const &spec, image_t &image)
{
TexSource source = TEXS_NONE;
variantspecification_t const &vspec = TS_GENERAL(spec);
if(!tex.manifest().schemeName().compareWithoutCase("Textures"))
{
// Attempt to load an external replacement for this composite texture?
if(!noHighResTex && (loadExtAlways || highResWithPWAD || !tex.isFlagged(de::Texture::Custom)))
{
// First try the textures scheme.
de::Uri uri = tex.manifest().composeUri();
source = loadExternalTexture(image, uri.compose(), "-ck");
}
if(source == TEXS_NONE)
{
if(TC_SKYSPHERE_DIFFUSE != vspec.context)
{
source = loadPatchComposite(image, tex);
}
else
{
bool const zeroMask = (vspec.flags & TSF_ZEROMASK) != 0;
bool const useZeroOriginIfOneComponent = true;
source = loadPatchComposite(image, tex, zeroMask, useZeroOriginIfOneComponent);
}
}
}
else if(!tex.manifest().schemeName().compareWithoutCase("Flats"))
{
// Attempt to load an external replacement for this flat?
if(!noHighResTex && (loadExtAlways || highResWithPWAD || !tex.isFlagged(de::Texture::Custom)))
{
// First try the flats scheme.
de::Uri uri = tex.manifest().composeUri();
source = loadExternalTexture(image, uri.compose(), "-ck");
if(source == TEXS_NONE)
{
// How about the old-fashioned "flat-name" in the textures scheme?
source = loadExternalTexture(image, "Textures:flat-" + uri.path().toStringRef(), "-ck");
}
}
if(source == TEXS_NONE)
{
if(tex.manifest().hasResourceUri())
{
de::Uri resourceUri = tex.manifest().resourceUri();
if(!resourceUri.scheme().compareWithoutCase("LumpIndex"))
{
try
{
lumpnum_t lumpNum = resourceUri.path().toString().toInt();
de::File1 &lump = App_FileSystem().nameIndex().lump(lumpNum);
de::FileHandle &hndl = App_FileSystem().openLump(lump);
source = loadFlat(image, hndl);
App_FileSystem().releaseFile(hndl.file());
delete &hndl;
}
catch(LumpIndex::NotFoundError const&)
{} // Ignore this error.
}
}
}
}
else if(!tex.manifest().schemeName().compareWithoutCase("Patches"))
{
int tclass = 0, tmap = 0;
if(vspec.flags & TSF_HAS_COLORPALETTE_XLAT)
{
DENG_ASSERT(vspec.translated);
tclass = vspec.translated->tClass;
tmap = vspec.translated->tMap;
}
// Attempt to load an external replacement for this patch?
if(!noHighResTex && (loadExtAlways || highResWithPWAD || !tex.isFlagged(Texture::Custom)))
{
de::Uri uri = tex.manifest().composeUri();
source = loadExternalTexture(image, uri.compose(), "-ck");
}
if(source == TEXS_NONE)
{
if(tex.manifest().hasResourceUri())
{
de::Uri resourceUri = tex.manifest().resourceUri();
if(!resourceUri.scheme().compareWithoutCase("LumpIndex"))
{
try
{
lumpnum_t lumpNum = resourceUri.path().toString().toInt();
de::File1 &lump = App_FileSystem().nameIndex().lump(lumpNum);
de::FileHandle &hndl = App_FileSystem().openLump(lump);
source = loadPatch(image, hndl, tclass, tmap, vspec.border);
App_FileSystem().releaseFile(hndl.file());
delete &hndl;
}
catch(LumpIndex::NotFoundError const&)
{} // Ignore this error.
}
}
}
}
else if(!tex.manifest().schemeName().compareWithoutCase("Sprites"))
{
int tclass = 0, tmap = 0;
if(vspec.flags & TSF_HAS_COLORPALETTE_XLAT)
{
DENG_ASSERT(vspec.translated);
tclass = vspec.translated->tClass;
tmap = vspec.translated->tMap;
}
// Attempt to load an external replacement for this sprite?
if(!noHighResPatches)
{
de::Uri uri = tex.manifest().composeUri();
// Prefer psprite or translated versions if available.
if(TC_PSPRITE_DIFFUSE == vspec.context)
{
source = loadExternalTexture(image, "Patches:" + uri.path() + "-hud", "-ck");
}
else if(tclass || tmap)
{
source = loadExternalTexture(image, "Patches:" + uri.path() + String("-table%1%2").arg(tclass).arg(tmap), "-ck");
}
if(!source)
{
source = loadExternalTexture(image, "Patches:" + uri.path(), "-ck");
}
}
if(source == TEXS_NONE)
{
if(tex.manifest().hasResourceUri())
{
de::Uri resourceUri = tex.manifest().resourceUri();
if(!resourceUri.scheme().compareWithoutCase("LumpIndex"))
{
try
{
lumpnum_t lumpNum = resourceUri.path().toString().toInt();
de::File1 &lump = App_FileSystem().nameIndex().lump(lumpNum);
de::FileHandle &hndl = App_FileSystem().openLump(lump);
source = loadPatch(image, hndl, tclass, tmap, vspec.border);
App_FileSystem().releaseFile(hndl.file());
delete &hndl;
}
catch(LumpIndex::NotFoundError const&)
{} // Ignore this error.
}
}
}
}
else if(!tex.manifest().schemeName().compareWithoutCase("Details"))
{
if(tex.manifest().hasResourceUri())
{
de::Uri resourceUri = tex.manifest().resourceUri();
if(resourceUri.scheme().compareWithoutCase("Lumps"))
{
source = loadExternalTexture(image, resourceUri.compose());
}
else
{
lumpnum_t lumpNum = App_FileSystem().lumpNumForName(resourceUri.path());
try
{
de::File1 &lump = App_FileSystem().nameIndex().lump(lumpNum);
de::FileHandle &hndl = App_FileSystem().openLump(lump);
source = loadDetail(image, hndl);
App_FileSystem().releaseFile(hndl.file());
delete &hndl;
}
catch(LumpIndex::NotFoundError const&)
{} // Ignore this error.
}
}
}
else
{
if(tex.manifest().hasResourceUri())
{
de::Uri resourceUri = tex.manifest().resourceUri();
source = loadExternalTexture(image, resourceUri.compose());
}
}
return source;
}
/**
* Prepares the image for use as a GL texture in accordance with the given
* specification.
*
* @param image The image to prepare (in place).
* @param spec Specification describing any transformations which should
* be applied to the image.
*
* @return The DGL texture format determined for the image.
*/
static dgltexformat_t prepareImageAsTexture(image_t &image,
variantspecification_t const &spec)
{
DENG_ASSERT(image.pixels);
bool monochrome = (spec.flags & TSF_MONOCHROME) != 0;
bool scaleSharp = (spec.flags & TSF_UPSCALE_AND_SHARPEN) != 0;
bool noSmartFilter = false;
if(spec.toAlpha)
{
if(0 != image.paletteId)
{
// Paletted.
uint8_t *newPixels = GL_ConvertBuffer(image.pixels, image.size.width, image.size.height,
((image.flags & IMGF_IS_MASKED)? 2 : 1),
R_ToColorPalette(image.paletteId), 3);
M_Free(image.pixels);
image.pixels = newPixels;
image.pixelSize = 3;
image.paletteId = 0;
image.flags &= ~IMGF_IS_MASKED;
}
Image_ConvertToLuminance(&image, false);
long total = image.size.width * image.size.height;
for(long i = 0; i < total; ++i)
{
image.pixels[total + i] = image.pixels[i];
image.pixels[i] = 255;
}
image.pixelSize = 2;
}
else if(0 != image.paletteId)
{
if(fillOutlines && (image.flags & IMGF_IS_MASKED))
ColorOutlinesIdx(image.pixels, image.size.width, image.size.height);
if(monochrome && !scaleSharp)
GL_DeSaturatePalettedImage(image.pixels, R_ToColorPalette(image.paletteId),
image.size.width, image.size.height);
if(scaleSharp)
{
int scaleMethod = GL_ChooseSmartFilter(image.size.width, image.size.height, 0);
bool origMasked = (image.flags & IMGF_IS_MASKED) != 0;
colorpaletteid_t origPaletteId = image.paletteId;
uint8_t *newPixels = GL_ConvertBuffer(image.pixels, image.size.width, image.size.height,
((image.flags & IMGF_IS_MASKED)? 2 : 1),
R_ToColorPalette(image.paletteId), 4);
if(newPixels != image.pixels)
{
M_Free(image.pixels);
image.pixels = newPixels;
image.pixelSize = 4;
image.paletteId = 0;
image.flags &= ~IMGF_IS_MASKED;
}
if(monochrome)
Desaturate(image.pixels, image.size.width, image.size.height, image.pixelSize);
newPixels = GL_SmartFilter(scaleMethod, image.pixels, image.size.width, image.size.height,
0, &image.size.width, &image.size.height);
if(newPixels != image.pixels)
{
M_Free(image.pixels);
image.pixels = newPixels;
}
EnhanceContrast(image.pixels, image.size.width, image.size.height, image.pixelSize);
//SharpenPixels(image.pixels, image.size.width, image.size.height, image.pixelSize);
//BlackOutlines(image.pixels, image.size.width, image.size.height, image.pixelSize);
// Back to paletted+alpha?
if(monochrome)
{
// No. We'll convert from RGB(+A) to Luminance(+A) and upload as is.
// Replace the old buffer.
Image_ConvertToLuminance(&image, true);
AmplifyLuma(image.pixels, image.size.width, image.size.height, image.pixelSize == 2);
}
else
{ // Yes. Quantize down from RGA(+A) to Paletted(+A), replacing the old image.
newPixels = GL_ConvertBuffer(image.pixels, image.size.width, image.size.height,
(origMasked? 2 : 1), R_ToColorPalette(origPaletteId), 4);
if(newPixels != image.pixels)
{
M_Free(image.pixels);
image.pixels = newPixels;
image.pixelSize = (origMasked? 2 : 1);
image.paletteId = origPaletteId;
if(origMasked)
image.flags |= IMGF_IS_MASKED;
}
}
// Lets not do this again.
noSmartFilter = true;
}
}
else if(image.pixelSize > 2)
{
if(monochrome)
{
Image_ConvertToLuminance(&image, true);
AmplifyLuma(image.pixels, image.size.width, image.size.height, image.pixelSize == 2);
}
}
/*
* Choose the final GL texture format.
*/
if(monochrome)
{
return image.pixelSize == 2? DGL_LUMINANCE_PLUS_A8 : DGL_LUMINANCE;
}
if(image.paletteId)
{
return (image.flags & IMGF_IS_MASKED)? DGL_COLOR_INDEX_8_PLUS_A8 : DGL_COLOR_INDEX_8;
}
return image.pixelSize == 2 ? DGL_LUMINANCE_PLUS_A8
: image.pixelSize == 3 ? DGL_RGB
: image.pixelSize == 4 ? DGL_RGBA : DGL_LUMINANCE;
}
/**
* Prepares the image for use as a detail GL texture in accordance with the
* given specification.
*
* @param image The image to prepare (in place).
* @param spec Specification describing any transformations which should
* be applied to the image.
*
* Return values:
* @param baMul Luminance equalization balance factor is written here.
* @param hiMul Luminance equalization white-shift factor is written here.
* @param loMul Luminance equalization black-shift factor is written here.
*
* @return The DGL texture format determined for the image.
*/
static dgltexformat_t prepareImageAsDetailTexture(image_t &image,
detailvariantspecification_t const &spec, float *baMul, float *hiMul, float *loMul)
{
DENG_UNUSED(spec);
// We want a luminance map.
if(image.pixelSize > 2)
{
Image_ConvertToLuminance(&image, false);
}
// Try to normalize the luminance data so it works expectedly as a detail texture.
EqualizeLuma(image.pixels, image.size.width, image.size.height, baMul, hiMul, loMul);
return DGL_LUMINANCE;
}
void GL_InitTextureManager()
{
if(initedOk)
{
GL_LoadSystemTextures();
return; // Already been here.
}
// Disable the use of 'high resolution' textures and/or patches?
noHighResTex = CommandLine_Exists("-nohightex");
noHighResPatches = CommandLine_Exists("-nohighpat");
// Should we allow using external resources with PWAD textures?
highResWithPWAD = CommandLine_Exists("-pwadtex");
// System textures loaded in GL_LoadSystemTextures.
std::memset(sysFlareTextures, 0, sizeof(sysFlareTextures));
std::memset(lightingTextures, 0, sizeof(lightingTextures));
variantSpecs = NULL;
memset(detailVariantSpecs, 0, sizeof(detailVariantSpecs));
GL_InitSmartFilterHQ2x();
// Initialization done.
initedOk = true;
}
void GL_ResetTextureManager()
{
if(!initedOk) return;
GL_ReleaseTextures();
GL_PruneTextureVariantSpecifications();
GL_LoadSystemTextures();
}
void GL_PrintTextureVariantSpecification(texturevariantspecification_t const &baseSpec)
{
static char const *textureUsageContextNames[1 + TEXTUREVARIANTUSAGECONTEXT_COUNT] = {
/* TC_UNKNOWN */ "unknown",
/* TC_UI */ "ui",
/* TC_MAPSURFACE_DIFFUSE */ "mapsurface_diffuse",
/* TC_MAPSURFACE_REFLECTION */ "mapsurface_reflection",
/* TC_MAPSURFACE_REFLECTIONMASK */ "mapsurface_reflectionmask",
/* TC_MAPSURFACE_LIGHTMAP */ "mapsurface_lightmap",
/* TC_SPRITE_DIFFUSE */ "sprite_diffuse",
/* TC_MODELSKIN_DIFFUSE */ "modelskin_diffuse",
/* TC_MODELSKIN_REFLECTION */ "modelskin_reflection",
/* TC_HALO_LUMINANCE */ "halo_luminance",
/* TC_PSPRITE_DIFFUSE */ "psprite_diffuse",
/* TC_SKYSPHERE_DIFFUSE */ "skysphere_diffuse"