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- /*!
- * \file src/TextureManager.cpp
- * \brief Texture registry
- *
- * \author Mongoose
- * \author xythobuz
- */
-
- #include <string.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <stdarg.h>
-
- #include "global.h"
- #include "Log.h"
- #include "RunTime.h"
- #include "utils/pcx.h"
- #include "utils/pixel.h"
- #include "utils/strings.h"
- #include "utils/tga.h"
- #include "TextureManager.h"
-
- #ifdef USING_PNG
- #include "utils/png.h"
- #endif
-
- TextureManager::TextureManager() {
- mFlags = 0;
- }
-
- TextureManager::~TextureManager() {
- reset();
- }
-
- void TextureManager::reset() {
- while (mTextureIds.size() > 0) {
- unsigned int id = mTextureIds.at(mTextureIds.size() - 1);
- glDeleteTextures(1, &id);
- mTextureIds.pop_back();
- }
- }
-
- int TextureManager::initialize() {
- unsigned char *image = generateColorTexture(WHITE, 32, 32, 32);
- loadBufferSlot(image, 32, 32, RGBA, 32, mTextureIds.size());
- delete [] image;
-
- //! \fixme Temporary
- std::string filename(getRunTime().getPakDir());
- filename += "/tr2/TITLE.PCX";
- if (loadPCX(filename.c_str()) < 0) {
- //! \fixme Error Checking. Return negative error code, check in calling place too
- filename = getRunTime().getDataDir();
- filename += "/splash.tga";
- loadTGA(filename.c_str());
- }
-
- return (mTextureIds.size() == 0) ? -1 : 0;
- }
-
- void TextureManager::setFlag(TextureFlag flag) {
- mFlags |= flag;
- }
-
- void TextureManager::clearFlag(TextureFlag flag) {
- mFlags &= ~flag;
- }
-
- int TextureManager::getTextureCount() {
- return mTextureIds.size();
- }
-
- void TextureManager::disableMultiTexture() {
- mFlags &= ~fUseMultiTexture;
-
- #ifdef MULTITEXTURE
- glDisable(GL_TEXTURE_2D);
- glActiveTextureARB(GL_TEXTURE0_ARB);
- #endif
- }
-
- void TextureManager::useMultiTexture(float aU, float aV, float bU, float bV) {
- if (!(mFlags & fUseMultiTexture))
- return;
-
- #ifdef MULTITEXTURE
- glMultiTexCoord2fARB(GL_TEXTURE0_ARB, aU, aV);
- glMultiTexCoord2fARB(GL_TEXTURE1_ARB, bU, bV);
- #endif
- }
-
- void TextureManager::bindMultiTexture(int texture0, int texture1) {
- assert(texture0 >= 0);
- assert(texture1 >= 0);
- assert((unsigned int)texture0 < mTextureIds.size());
- assert((unsigned int)texture1 < mTextureIds.size());
-
- mFlags |= fUseMultiTexture;
-
- #ifdef MULTITEXTURE
- glActiveTextureARB(GL_TEXTURE0_ARB);
- glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, mTextureIds.at(texture0));
-
- glActiveTextureARB(GL_TEXTURE1_ARB);
- glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, mTextureIds.at(texture1));
- #endif
- }
-
- int TextureManager::loadBufferSlot(unsigned char *image,
- unsigned int width, unsigned int height,
- ColorMode mode, unsigned int bpp,
- unsigned int slot, bool filter) {
- assert(image != NULL);
- assert(width > 0);
- assert(height > 0);
- assert((mode == GREYSCALE) || (mode == RGB)
- || (mode == BGR) || (mode == ARGB)
- || (mode == RGBA) || (mode == BGRA));
- assert((bpp == 8) || (bpp == 24) || (bpp == 32));
-
- while (mTextureIds.size() <= slot) {
- unsigned int id;
- glGenTextures(1, &id);
- mTextureIds.push_back(id);
- }
-
- unsigned int glcMode;
- switch (mode) {
- case GREYSCALE:
- glcMode = GL_LUMINANCE;
- break;
-
- case BGR:
- bgr2rgb24(image, width, height);
- glcMode = GL_RGB;
- break;
-
- case RGB:
- glcMode = GL_RGB;
- break;
-
- case ARGB:
- argb2rgba32(image, width, height);
- glcMode = GL_RGBA;
- break;
-
- case BGRA:
- bgra2rgba32(image, width, height);
- glcMode = GL_RGBA;
- break;
-
- case RGBA:
- glcMode = GL_RGBA;
- break;
- }
-
- glColor3ubv(WHITE);
- glClearColor(0.0, 0.0, 0.0, 0.0);
- glEnable(GL_DEPTH_TEST);
- glShadeModel(GL_SMOOTH);
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- glBindTexture(GL_TEXTURE_2D, mTextureIds.at(slot));
-
- if (filter) {
- glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
- } else {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- }
-
- glTexImage2D(GL_TEXTURE_2D, 0, bpp / 8, width, height, 0, glcMode, GL_UNSIGNED_BYTE, image);
-
- //glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-
- return slot;
- }
-
- void TextureManager::bindTextureId(unsigned int n) {
- assert(n < mTextureIds.size());
-
- glEnable(GL_TEXTURE_2D);
- //glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-
- glBindTexture(GL_TEXTURE_2D, mTextureIds.at(n));
- }
-
- int TextureManager::loadImage(const char *filename) {
- if (stringEndsWith(filename, ".pcx") || stringEndsWith(filename, ".PCX")) {
- return loadPCX(filename);
- } else if (stringEndsWith(filename, ".png") || stringEndsWith(filename, ".PNG")) {
- return loadPNG(filename);
- } else if (stringEndsWith(filename, ".tga") || stringEndsWith(filename, ".TGA")) {
- return loadTGA(filename);
- } else {
- getLog() << "No known image file type? (" << filename << ")" << Log::endl;
- }
-
- return -1;
- }
-
- int TextureManager::loadPCX(const char *filename) {
- assert(filename != NULL);
- assert(filename[0] != '\0');
-
- unsigned char *image;
- unsigned int w, h, bpp;
- ColorMode c;
- int id = -1;
- int error = pcxLoad(filename, &image, &w, &h, &c, &bpp);
-
- if (error == 0) {
- unsigned char *image2 = scaleBuffer(image, &w, &h, bpp);
- if (image2) {
- delete [] image;
- image = image2;
- }
- id = loadBufferSlot(image, w, h, c, bpp, mTextureIds.size());
- delete [] image;
- }
-
- return id;
- }
-
- int TextureManager::loadPNG(const char *filename) {
- #ifdef USING_PNG
- assert(filename != NULL);
- assert(filename[0] != '\0');
-
- if (pngCheck(filename) != 0) {
- return -1;
- }
-
- unsigned char *image;
- unsigned int w, h, bpp;
- ColorMode c;
- int id = -1;
- int error = pngLoad(filename, &image, &w, &h, &c, &bpp);
-
- if (error == 0) {
- unsigned char *image2 = scaleBuffer(image, &w, &h, bpp);
- if (image2) {
- delete [] image;
- image = image2;
- }
- id = loadBufferSlot(image, w, h, c, bpp, mTextureIds.size());
- delete [] image;
- }
-
- return id;
- #else
- getLog() << "No PNG support available (" << filename << ")" << Log::endl;
- return -1;
- #endif
- }
-
- int TextureManager::loadTGA(const char *filename) {
- assert(filename != NULL);
- assert(filename[0] != '\0');
-
- unsigned char *image;
- unsigned int w, h;
- char type;
- int id = -1;
-
- if (!tgaCheck(filename)) {
- tgaLoad(filename, &image, &w, &h, &type);
-
- unsigned char *image2 = scaleBuffer(image, &w, &h, (type == 2) ? 32 : 24);
- if (image2) {
- delete [] image;
- image = image2;
- }
- if (image) {
- id = loadBufferSlot(image, w, h,
- (type == 2) ? RGBA : RGB,
- (type == 2) ? 32 : 24,
- mTextureIds.size());
- delete [] image;
- }
- }
-
- return id;
- }
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