diff options
Diffstat (limited to 'lib/texture.cc')
| -rw-r--r-- | lib/texture.cc | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/lib/texture.cc b/lib/texture.cc new file mode 100644 index 0000000..36297ac --- /dev/null +++ b/lib/texture.cc @@ -0,0 +1,194 @@ +#include <sys/types.h> +#include <SDL.h> +#include <generic.h> +#include "texture.h" +#include "engine.h" +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif +#include "gettext.h" + +#ifdef TRACE_TEXTURES +mogltk::texture * mogltk::texture::header = 0; +mogltk::texture * mogltk::texture::footer = 0; +#endif + +mogltk::texture * mogltk::texture::active = 0; + +mogltk::texture::texture(int w, int h) throw (GeneralException) : width(w), height(h), + texture_allocated(false), planar(plane), tainted(true) { + if ((!ISPOT(w)) || (!ISPOT(h))) + throw GeneralException(_("Size of the texture not a power of 2!")); + + if (!(surface = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 32, +#if SDL_BYTEORDER == SDL_BIG_ENDIAN + 0xff000000, + 0x00ff0000, + 0x0000ff00, + 0x000000ff +#else + 0x000000ff, + 0x0000ff00, + 0x00ff0000, + 0xff000000 +#endif + ))) { + throw GeneralException(_("Can't create RGB Surface")); + } + +#ifdef TRACE_TEXTURES + next = 0; + prev = footer; + footer = this; + if (!header) { + header = this; + } + if (prev) { + prev->next = this; + } +#endif +} + +mogltk::texture::texture(Handle * h) throw (GeneralException) { + SDL_Surface * temp; + + temp = LoadNTEX(h); + width = temp->w; + height = temp->h; + +#ifdef DEBUG + printm(M_INFO, "Creating texture from file: size %ix%i\n", height, width); +#endif + + if ((!ISPOT(width)) || (!ISPOT(height))) { + SDL_FreeSurface(temp); + throw GeneralException(_("Size of the texture not a power of 2!")); + } + + SDL_PixelFormat f; + + f.palette = 0; + f.BitsPerPixel = 32; + f.BytesPerPixel = 4; +#if SDL_BYTEORDER == SDL_BIG_ENDIAN + f.Amask = 0x000000ff; + f.Bmask = 0x0000ff00; + f.Gmask = 0x00ff0000; + f.Rmask = 0xff000000; + f.Ashift = 0; + f.Bshift = 8; + f.Gshift = 16; + f.Rshift = 24; +#else + f.Rmask = 0x000000ff; + f.Gmask = 0x0000ff00; + f.Bmask = 0x00ff0000; + f.Amask = 0xff000000; + f.Rshift = 0; + f.Gshift = 8; + f.Bshift = 16; + f.Ashift = 24; +#endif + f.Rloss = 0; + f.Gloss = 0; + f.Bloss = 0; + f.Aloss = 0; + + if (!(surface = SDL_ConvertSurface(temp, &f, 0))) { + throw GeneralException("Could not convert texture to OpenGL format"); + } + + SDL_FreeSurface(temp); + +#ifdef TRACE_TEXTURES + next = 0; + prev = footer; + footer = this; + if (!header) { + header = this; + } + if (prev) { + prev->next = this; + } +#endif +} + +mogltk::texture::~texture() { + if (surface) { + SDL_FreeSurface(surface); + } + +#ifdef TRACE_TEXTURES + if (prev) { + prev->next = next; + } + + if (next) { + next->prev = prev; + } + + if (this == footer) { + footer = prev; + } + + if (this == header) { + header = next; + } +#endif +} + +Uint32 * mogltk::texture::GetPixels() { + return (Uint32 *) surface->pixels; +} + +SDL_Surface * mogltk::texture::GetSurface() { + return surface; +} + +Uint32 mogltk::texture::GetWidth() { + return width; +} + +Uint32 mogltk::texture::GetHeight() { + return height; +} + +#ifdef WORDS_BIGENDIAN +#define NTEX_SIGNATURE 0x4e544558 +#else +#define NTEX_SIGNATURE 0x5845544e +#endif + +SDL_Surface * mogltk::texture::LoadNTEX(Handle * h) throw (GeneralException) { + SDL_Surface * r; + char buffer[4]; + Uint16 height, width; + + h->read(buffer, 4); + buffer[4] = 0; + if (*((Uint32 *) buffer) != NTEX_SIGNATURE) + throw GeneralException("Texture file " + h->GetName() + " corrupted"); + + height = h->readU16(); + width = h->readU16(); + + if (!(r = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 32, +#if SDL_BYTEORDER == SDL_BIG_ENDIAN + 0xff000000, + 0x00ff0000, + 0x0000ff00, + 0x000000ff +#else + 0x000000ff, + 0x0000ff00, + 0x00ff0000, + 0xff000000 +#endif + ))) { + throw GeneralException(_("Can't create RGB Surface for LoadNTEX")); + } + + h->read(r->pixels, height * width * 4); + + return r; +} |