#include "video/texture_manager.hpp"
#include <SDL_image.h>
+#include <assert.h>
#include <iostream>
+#include "math/rect.hpp"
#include "physfs/physfs_sdl.hpp"
#include "util/file_system.hpp"
#include "util/log.hpp"
#include "video/gl/gl_texture.hpp"
+#include "video/sdl_surface_ptr.hpp"
#include "video/video_systems.hpp"
TextureManager::TextureManager() :
return texture;
}
+Texture*
+TextureManager::get(const std::string& filename, const Rect& rect)
+{
+ // FIXME: implement caching
+ return create_image_texture(filename, rect);
+}
+
void
TextureManager::release(Texture* texture)
{
#endif
Texture*
-TextureManager::create_image_texture(const std::string& filename)
+TextureManager::create_image_texture(const std::string& filename, const Rect& rect)
{
- try {
+ try
+ {
+ return create_image_texture_raw(filename, rect);
+ }
+ catch(const std::exception& err)
+ {
+ log_warning << "Couldn't load texture '" << filename << "' (now using dummy texture): " << err.what() << std::endl;
+ Texture* texture = create_dummy_texture();
+ return texture;
+ }
+}
- SDL_Surface* image = IMG_Load_RW(get_physfs_SDLRWops(filename), 1);
- if(image == 0) {
- std::ostringstream msg;
- msg << "Couldn't load image '" << filename << "' :" << SDL_GetError();
- throw std::runtime_error(msg.str());
+Texture*
+TextureManager::create_image_texture_raw(const std::string& filename, const Rect& rect)
+{
+ SDLSurfacePtr image(IMG_Load_RW(get_physfs_SDLRWops(filename), 1));
+ if (!image)
+ {
+ std::ostringstream msg;
+ msg << "Couldn't load image '" << filename << "' :" << SDL_GetError();
+ throw std::runtime_error(msg.str());
+ }
+ else
+ {
+ SDLSurfacePtr subimage(SDL_CreateRGBSurfaceFrom(static_cast<uint8_t*>(image->pixels) + rect.top * image->pitch + rect.left * image->format->BytesPerPixel,
+ rect.get_width(), rect.get_height(),
+ image->format->BitsPerPixel,
+ image->pitch,
+ image->format->Rmask,
+ image->format->Gmask,
+ image->format->Bmask,
+ image->format->Amask));
+ if (!subimage)
+ {
+ throw std::runtime_error("SDL_CreateRGBSurfaceFrom() call failed");
}
-
- Texture* result = 0;
- try {
- result = VideoSystem::new_texture(image);
+ else
+ {
+ Texture* result = VideoSystem::new_texture(subimage.get());
result->set_filename(filename);
- } catch(...) {
- delete result;
- SDL_FreeSurface(image);
- throw;
+ return result;
}
+ }
+}
+
+Texture*
+TextureManager::create_image_texture(const std::string& filename)
+{
+ try
+ {
+ return create_image_texture_raw(filename);
+ }
+ catch (const std::exception& err)
+ {
+ log_warning << "Couldn't load texture '" << filename << "' (now using dummy texture): " << err.what() << std::endl;
+ Texture* texture = create_dummy_texture();
+ return texture;
+ }
+}
- SDL_FreeSurface(image);
+Texture*
+TextureManager::create_image_texture_raw(const std::string& filename)
+{
+ SDLSurfacePtr image(IMG_Load_RW(get_physfs_SDLRWops(filename), 1));
+ if (!image)
+ {
+ std::ostringstream msg;
+ msg << "Couldn't load image '" << filename << "' :" << SDL_GetError();
+ throw std::runtime_error(msg.str());
+ }
+ else
+ {
+ Texture* result = VideoSystem::new_texture(image.get());
+ result->set_filename(filename);
return result;
+ }
+}
- } catch (const std::runtime_error& err) {
- const std::string dummy_texture_fname = "images/engine/missing.png";
- if (filename == dummy_texture_fname) throw err;
-
- // on error, try loading placeholder file
- try {
-
- Texture* tex = create_image_texture(dummy_texture_fname);
- log_warning << "Couldn't load texture '" << filename << "' (now using dummy texture): " << err.what() << std::endl;
- return tex;
-
- } catch (...) {
-
- // on error (when loading placeholder), try using empty surface
- try {
-
- SDL_Surface* image = SDL_CreateRGBSurface(0, 1024, 1024, 8, 0, 0, 0, 0);
- if(image == 0) {
- throw err;
- }
-
- Texture* result = 0;
- try {
- result = VideoSystem::new_texture(image);
- result->set_filename("-dummy-texture-.png");
- } catch(...) {
- delete result;
- SDL_FreeSurface(image);
- throw err;
- }
-
- SDL_FreeSurface(image);
- log_warning << "Couldn't load texture '" << filename << "' (now using empty one): " << err.what() << std::endl;
- return result;
-
- // on error (when trying to use empty surface), give up
- } catch (const std::runtime_error& err) {
- throw err;
- }
+Texture*
+TextureManager::create_dummy_texture()
+{
+ const std::string dummy_texture_fname = "images/engine/missing.png";
+
+ // on error, try loading placeholder file
+ try
+ {
+ Texture* tex = create_image_texture_raw(dummy_texture_fname);
+ return tex;
+ }
+ catch (const std::exception& err)
+ {
+ // on error (when loading placeholder), try using empty surface,
+ // when that fails to, just give up
+ SDLSurfacePtr image(SDL_CreateRGBSurface(0, 1024, 1024, 8, 0, 0, 0, 0));
+ if (!image)
+ {
+ throw err;
+ }
+ else
+ {
+ Texture* result = VideoSystem::new_texture(image.get());
+ result->set_filename("-dummy-texture-.png");
+ log_warning << "Couldn't load texture '" << dummy_texture_fname << "' (now using empty one): " << err.what() << std::endl;
+ return result;
}
}
}