bool replaceTexture(const QString &oldfile, const QString &newfile)
{
char tmpname[iV_TEXNAME_MAX];
// Load new one to replace it
iV_Image image;
if (!iV_loadImage_PNG(QString("texpages/" + newfile).toUtf8().constData(), &image))
{
debug(LOG_ERROR, "Failed to load image: %s", newfile.toUtf8().constData());
return false;
}
sstrcpy(tmpname, oldfile.toUtf8().constData());
pie_MakeTexPageName(tmpname);
// Have we already loaded this one?
for (int i = 0; i < _TEX_PAGE.size(); i++)
{
if (strcmp(tmpname, _TEX_PAGE[i].name) == 0)
{
GL_DEBUG("Replacing texture");
debug(LOG_TEXTURE, "Replacing texture %s with %s from index %d (tex id %u)", _TEX_PAGE[i].name, newfile.toUtf8().constData(), i, _TEX_PAGE[i].id);
sstrcpy(tmpname, newfile.toUtf8().constData());
pie_MakeTexPageName(tmpname);
pie_AddTexPage(&image, tmpname, true, i);
iV_unloadImage(&image);
return true;
}
}
iV_unloadImage(&image);
debug(LOG_ERROR, "Nothing to replace!");
return false;
}
/** Retrieve the texture number for a given texture resource.
*
* @note We keep textures in a separate data structure _TEX_PAGE apart from the
* normal resource system.
*
* @param filename The filename of the texture page to search for.
*
* @return a non-negative index number for the texture, negative if no texture
* with the given filename could be found
*/
int iV_GetTexture(const char *filename)
{
unsigned int i = 0;
iV_Image sSprite;
char path[PATH_MAX];
/* Have we already loaded this one then? */
sstrcpy(path, filename);
pie_MakeTexPageName(path);
for (i = 0; i < iV_TEX_MAX; i++)
{
if (strncmp(path, _TEX_PAGE[i].name, iV_TEXNAME_MAX) == 0)
{
return i;
}
}
// Try to load it
sstrcpy(path, "texpages/");
sstrcat(path, filename);
if (!iV_loadImage_PNG(path, &sSprite))
{
debug(LOG_ERROR, "Failed to load %s", path);
return -1;
}
sstrcpy(path, filename);
pie_MakeTexPageName(path);
return pie_AddTexPage(&sSprite, path, 0, -1, true); // FIXME, -1, use getTextureSize()
}
/** Retrieve the texture number for a given texture resource.
*
* @note We keep textures in a separate data structure _TEX_PAGE apart from the
* normal resource system.
*
* @param filename The filename of the texture page to search for.
* @param compression If we need to load it, should we use texture compression?
*
* @return a non-negative index number for the texture, negative if no texture
* with the given filename could be found
*/
int iV_GetTexture(const char *filename, bool compression)
{
iV_Image sSprite;
char path[PATH_MAX];
/* Have we already loaded this one then? */
sstrcpy(path, filename);
pie_MakeTexPageName(path);
for (int i = 0; i < _TEX_PAGE.size(); i++)
{
if (strncmp(path, _TEX_PAGE[i].name, iV_TEXNAME_MAX) == 0)
{
return i;
}
}
// Try to load it
sstrcpy(path, "texpages/");
sstrcat(path, filename);
if (!iV_loadImage_PNG(path, &sSprite))
{
debug(LOG_ERROR, "Failed to load %s", path);
return -1;
}
sstrcpy(path, filename);
pie_MakeTexPageName(path);
return pie_AddTexPage(&sSprite, path, compression);
}
void GFX::loadTexture(const char *filename, GLenum filter)
{
const char *extension = strrchr(filename, '.'); // determine the filetype
iV_Image image;
if (!extension || strcmp(extension, ".png") != 0)
{
debug(LOG_ERROR, "Bad image filename: %s", filename);
return;
}
if (iV_loadImage_PNG(filename, &image))
{
makeTexture(image.width, image.height, filter, iV_getPixelFormat(&image), image.bmp);
iV_unloadImage(&image);
}
}
/*!
* Load an image from file
*/
static bool dataImageLoad(const char *fileName, void **ppData)
{
iV_Image *psSprite = (iV_Image *)malloc(sizeof(iV_Image));
if (!psSprite)
{
return false;
}
if (!iV_loadImage_PNG(fileName, psSprite))
{
debug( LOG_ERROR, "IMGPAGE load failed" );
return false;
}
*ppData = psSprite;
return true;
}
/**
init_system_ColorCursor()-- Create a colored mouse cursor image
*/
SDL_Cursor *init_system_ColorCursor(CURSOR cur, const char *fileName)
{
iV_Image *psSprite = (iV_Image *)malloc(sizeof(iV_Image));
if (!psSprite)
{
debug(LOG_FATAL, "Could not allocate memory for cursor sprite. Exiting.");
exit(-1);
}
if (!iV_loadImage_PNG(fileName, psSprite))
{
debug(LOG_FATAL, "Could not load cursor sprite. Exiting.");
exit(-1);
}
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
uint32_t rmask = 0xff000000;
uint32_t gmask = 0x00ff0000;
uint32_t bmask = 0x0000ff00;
uint32_t amask = 0x000000ff;
#else
uint32_t rmask = 0x000000ff;
uint32_t gmask = 0x0000ff00;
uint32_t bmask = 0x00ff0000;
uint32_t amask = 0xff000000;
#endif
SDL_Surface *surface = SDL_CreateRGBSurfaceFrom(psSprite->bmp, psSprite->width, psSprite->height, psSprite->depth * 8, psSprite->width * 4, rmask, gmask, bmask, amask);
SDL_Cursor *pointer = SDL_CreateColorCursor(surface, psSprite->width / 2, psSprite->height / 2); // We center the hotspot for all (FIXME ?)
if (!pointer)
{
debug(LOG_FATAL, "Could not create cursor because %s", SDL_GetError());
exit(-1);
}
// free up image & surface data
free(psSprite->bmp);
free(psSprite);
SDL_FreeSurface(surface);
return pointer;
}
void screen_SetBackDropFromFile(const char* filename)
{
// HACK : We should use a resource handler here!
const char *extension = strrchr(filename, '.');// determine the filetype
iV_Image image;
if(!extension)
{
debug(LOG_ERROR, "Image without extension: \"%s\"!", filename);
return; // filename without extension... don't bother
}
// Make sure the current texture page is reloaded after we are finished
// Otherwise WZ will think it is still loaded and not load it again
pie_SetTexturePage(TEXPAGE_EXTERN);
if( strcmp(extension,".png") == 0 )
{
if (iV_loadImage_PNG( filename, &image ) )
{
if (~backDropTexture == 0)
glGenTextures(1, &backDropTexture);
glBindTexture(GL_TEXTURE_2D, backDropTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
image.width, image.height,
0, iV_getPixelFormat(&image), GL_UNSIGNED_BYTE, image.bmp);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
iV_unloadImage(&image);
}
return;
}
else
debug(LOG_ERROR, "Unknown extension \"%s\" for image \"%s\"!", extension, filename);
}
bool texLoad(const char *fileName)
{
char fullPath[PATH_MAX], partialPath[PATH_MAX], *buffer;
unsigned int i, j, k, size;
int texPage;
GLint glval;
firstPage = _TEX_INDEX;
ASSERT_OR_RETURN(false, _TEX_INDEX < iV_TEX_MAX, "Too many texture pages used");
ASSERT_OR_RETURN(false, MIPMAP_MAX == TILE_WIDTH && MIPMAP_MAX == TILE_HEIGHT, "Bad tile sizes");
// store the filename so we can later determine which tileset we are using
if (tileset) free(tileset);
tileset = strdup(fileName);
// reset defaults
mipmap_max = MIPMAP_MAX;
mipmap_levels = MIPMAP_LEVELS;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &glval);
while (glval < mipmap_max * TILES_IN_PAGE_COLUMN)
{
mipmap_max /= 2;
mipmap_levels--;
debug(LOG_ERROR, "Max supported texture size %dx%d is too low - reducing texture detail to %dx%d.",
(int)glval, (int)glval, mipmap_max, mipmap_max);
ASSERT(mipmap_levels > 0, "Supported texture size %d is too low to load any mipmap levels!",
(int)glval);
if (mipmap_levels == 0)
{
exit(1);
}
}
while (maxTextureSize < mipmap_max)
{
mipmap_max /= 2;
mipmap_levels--;
debug(LOG_TEXTURE, "Downgrading texture quality to %d due to user setting %d", mipmap_max, maxTextureSize);
}
/* Get and set radar colours */
sprintf(fullPath, "%s.radar", fileName);
if (!loadFile(fullPath, &buffer, &size))
{
debug(LOG_FATAL, "texLoad: Could not find radar colours at %s", fullPath);
abort(); // cannot recover; we could possibly generate a random palette?
}
i = 0; // tile
j = 0; // place in buffer
do {
unsigned int r, g, b;
int cnt = 0;
k = sscanf(buffer + j, "%2x%2x%2x%n", &r, &g, &b, &cnt);
j += cnt;
if (k >= 3)
{
radarColour(i, r, g, b);
}
i++; // next tile
} while (k >= 3 && j + 6 < size);
free(buffer);
/* Now load the actual tiles */
i = mipmap_max; // i is used to keep track of the tile dimensions
for (j = 0; j < mipmap_levels; j++)
{
int xOffset = 0, yOffset = 0; // offsets into the texture atlas
int xSize = 1;
int ySize = 1;
const int xLimit = TILES_IN_PAGE_COLUMN * i;
const int yLimit = TILES_IN_PAGE_ROW * i;
// pad width and height into ^2 values
while (xLimit > (xSize *= 2)) {}
while (yLimit > (ySize *= 2)) {}
// Generate the empty texture buffer in VRAM
texPage = newPage(fileName, j, xSize, ySize, 0);
sprintf(partialPath, "%s-%d", fileName, i);
// Load until we cannot find anymore of them
for (k = 0; k < MAX_TILES; k++)
{
iV_Image tile;
sprintf(fullPath, "%s/tile-%02d.png", partialPath, k);
if (PHYSFS_exists(fullPath)) // avoid dire warning
{
bool retval = iV_loadImage_PNG(fullPath, &tile);
ASSERT_OR_RETURN(false, retval, "Could not load %s!", fullPath);
}
else
{
// no more textures in this set
ASSERT_OR_RETURN(false, k > 0, "Could not find %s", fullPath);
break;
}
// Insert into texture page
glTexSubImage2D(GL_TEXTURE_2D, j, xOffset, yOffset, tile.width, tile.height,
GL_RGBA, GL_UNSIGNED_BYTE, tile.bmp);
free(tile.bmp);
if (i == mipmap_max) // dealing with main texture page; so register coordinates
{
tileTexInfo[k].uOffset = (float)xOffset / (float)xSize;
tileTexInfo[k].vOffset = (float)yOffset / (float)ySize;
tileTexInfo[k].texPage = texPage;
debug(LOG_TEXTURE, " texLoad: Registering k=%d i=%d u=%f v=%f xoff=%d yoff=%d xsize=%d ysize=%d tex=%d (%s)",
k, i, tileTexInfo[k].uOffset, tileTexInfo[k].vOffset, xOffset, yOffset, xSize, ySize, texPage, fullPath);
}
xOffset += i; // i is width of tile
if (xOffset + i > xLimit)
{
yOffset += i; // i is also height of tile
xOffset = 0;
}
if (yOffset + i > yLimit)
{
/* Change to next texture page */
xOffset = 0;
yOffset = 0;
debug(LOG_TEXTURE, "texLoad: Extra page added at %d for %s, was page %d, opengl id %u",
k, partialPath, texPage, (unsigned int)_TEX_PAGE[texPage].id);
texPage = newPage(fileName, j, xSize, ySize, k);
}
}
debug(LOG_TEXTURE, "texLoad: Found %d textures for %s mipmap level %d, added to page %d, opengl id %u",
k, partialPath, i, texPage, (unsigned int)_TEX_PAGE[texPage].id);
i /= 2; // halve the dimensions for the next series; OpenGL mipmaps start with largest at level zero
}
return true;
}
IMAGEFILE *iV_LoadImageFile(const char *fileName)
{
// Find the directory of images.
std::string imageDir = fileName;
if (imageDir.find_last_of('.') != std::string::npos)
{
imageDir.erase(imageDir.find_last_of('.'));
}
imageDir += '/';
// Load the image list file.
char *pFileData;
unsigned pFileSize;
if (!loadFile(fileName, &pFileData, &pFileSize))
{
debug(LOG_ERROR, "iV_LoadImageFile: failed to open %s", fileName);
return NULL;
}
char *ptr = pFileData;
// count lines, which is identical to number of images
int numImages = 0;
while (ptr < pFileData + pFileSize && *ptr != '\0')
{
numImages += *ptr == '\n';
++ptr;
}
IMAGEFILE *imageFile = new IMAGEFILE;
imageFile->imageDefs.resize(numImages);
imageFile->imageNames.resize(numImages);
ImageMerge pageLayout;
pageLayout.images.resize(numImages);
ptr = pFileData;
numImages = 0;
while (ptr < pFileData + pFileSize)
{
int temp, retval;
ImageDef *ImageDef = &imageFile->imageDefs[numImages];
char tmpName[256];
retval = sscanf(ptr, "%d,%d,%255[^\r\n\",]%n", &ImageDef->XOffset, &ImageDef->YOffset, tmpName, &temp);
if (retval != 3)
{
debug(LOG_ERROR, "Bad line in \"%s\".", fileName);
return NULL;
}
imageFile->imageNames[numImages].first = tmpName;
imageFile->imageNames[numImages].second = numImages;
std::string spriteName = imageDir + tmpName;
ImageMergeRectangle *imageRect = &pageLayout.images[numImages];
imageRect->index = numImages;
imageRect->data = new iV_Image;
if (!iV_loadImage_PNG(spriteName.c_str(), imageRect->data))
{
debug(LOG_ERROR, "Failed to find image \"%s\" listed in \"%s\".", spriteName.c_str(), fileName);
return NULL;
}
imageRect->siz = Vector2i(imageRect->data->width, imageRect->data->height);
numImages++;
ptr += temp;
while (ptr < pFileData + pFileSize && *ptr++ != '\n') {} // skip rest of line
images.insert(tmpName, ImageDef);
}
free(pFileData);
std::sort(imageFile->imageNames.begin(), imageFile->imageNames.end());
pageLayout.arrange(); // Arrange all the images onto texture pages (attempt to do so with as few pages as possible).
imageFile->pages.resize(pageLayout.pages.size());
std::vector<iV_Image> ivImages(pageLayout.pages.size());
for (unsigned p = 0; p < pageLayout.pages.size(); ++p)
{
int size = pageLayout.pages[p];
ivImages[p].depth = 4;
ivImages[p].width = size;
ivImages[p].height = size;
ivImages[p].bmp = (unsigned char *)malloc(size*size*4); // MUST be malloc, since this is free()d later by pie_AddTexPage().
memset(ivImages[p].bmp, 0x00, size*size*4);
imageFile->pages[p].size = size;
// Must set imageFile->pages[p].id later, after filling out ivImages[p].bmp.
}
for (std::vector<ImageMergeRectangle>::const_iterator r = pageLayout.images.begin(); r != pageLayout.images.end(); ++r)
{
imageFile->imageDefs[r->index].TPageID = r->page;
imageFile->imageDefs[r->index].Tu = r->loc.x;
imageFile->imageDefs[r->index].Tv = r->loc.y;
imageFile->imageDefs[r->index].Width = r->siz.x;
imageFile->imageDefs[r->index].Height = r->siz.y;
// Copy image data onto texture page.
iV_Image *srcImage = r->data;
int srcDepth = srcImage->depth;
int srcStride = srcImage->width*srcDepth; // Not sure whether to pad in the case that srcDepth ≠ 4, however this apparently cannot happen.
unsigned char *srcBytes = srcImage->bmp + 0*srcDepth + 0*srcStride;
iV_Image *dstImage = &ivImages[r->page];
int dstDepth = dstImage->depth;
int dstStride = dstImage->width*dstDepth;
unsigned char *dstBytes = dstImage->bmp + r->loc.x*dstDepth + r->loc.y*dstStride;
Vector2i size = r->siz;
unsigned char rgba[4] = {0x00, 0x00, 0x00, 0xFF};
for (int y = 0; y < size.y; ++y)
for (int x = 0; x < size.x; ++x)
{
memcpy(rgba, srcBytes + x*srcDepth + y*srcStride, srcDepth);
memcpy(dstBytes + x*dstDepth + y*dstStride, rgba, dstDepth);
}
// Finished reading the image data and copying it to the texture page, delete it.
free(r->data->bmp);
delete r->data;
}
// Debug usage only. Dump all images to disk (do mkdir images/, first). Doesn't dump the alpha channel, since the .ppm format doesn't support that.
/*for (unsigned p = 0; p < pageLayout.pages.size(); ++p)
{
char fName[100];
sprintf(fName, "%s-%d", fileName, p);
printf("Dump %s\n", fName);
FILE *f = fopen(fName, "wb");
iV_Image *image = &ivImages[p];
fprintf(f, "P6\n%d %d\n255\n", image->width, image->height);
for (int x = 0; x < image->width*image->height; ++x)
if (fwrite(image->bmp + x*4, 3, 1, f) == 0)
abort();
fclose(f);
}*/
// Upload texture pages and free image data.
for (unsigned p = 0; p < pageLayout.pages.size(); ++p)
{
char arbitraryName[256];
ssprintf(arbitraryName, "%s-%03u", fileName, p);
// Now we can set imageFile->pages[p].id. This free()s the ivImages[p].bmp array!
imageFile->pages[p].id = pie_AddTexPage(&ivImages[p], arbitraryName, 0, 0, true);
}
// duplicate some data, since we want another access point to these data structures now, FIXME
for (unsigned i = 0; i < imageFile->imageDefs.size(); i++)
{
imageFile->imageDefs[i].textureId = imageFile->pages[imageFile->imageDefs[i].TPageID].id;
imageFile->imageDefs[i].invTextureSize = 1.f / imageFile->pages[imageFile->imageDefs[i].TPageID].size;
}
files.append(imageFile);
return imageFile;
}