+++ /dev/null
-// $Id$
-//
-// SuperTux
-// Copyright (C) 2004 Tobias Glaesser <tobi.web@gmx.de>
-//
-// 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., 59 Temple Place - Suite 330, Boston, MA
-// 02111-1307, USA.
-
-#include <cassert>
-#include <iostream>
-#include <algorithm>
-
-#include "SDL.h"
-#include "SDL_image.h"
-
-#include "texture.h"
-#include "globals.h"
-#include "setup.h"
-
-Surface::Surfaces Surface::surfaces;
-
-SurfaceData::SurfaceData(SDL_Surface* temp, int use_alpha_)
- : type(SURFACE), surface(0), use_alpha(use_alpha_)
-{
- // Copy the given surface and make sure that it is not stored in
- // video memory
- surface = SDL_CreateRGBSurface(temp->flags & (~SDL_HWSURFACE),
- temp->w, temp->h,
- temp->format->BitsPerPixel,
- temp->format->Rmask,
- temp->format->Gmask,
- temp->format->Bmask,
- temp->format->Amask);
- if(!surface)
- st_abort("No memory left.", "");
- SDL_SetAlpha(temp,0,0);
- SDL_BlitSurface(temp, NULL, surface, NULL);
-}
-
-SurfaceData::SurfaceData(const std::string& file_, int use_alpha_)
- : type(LOAD), surface(0), file(file_), use_alpha(use_alpha_)
-{}
-
-SurfaceData::SurfaceData(const std::string& file_, int x_, int y_, int w_, int h_, int use_alpha_)
- : type(LOAD_PART), surface(0), file(file_), use_alpha(use_alpha_),
- x(x_), y(y_), w(w_), h(h_)
-{}
-
-SurfaceData::SurfaceData(Color top_gradient_, Color bottom_gradient_, int w_, int h_)
- : type(GRADIENT), surface(0), use_alpha(false), w(w_), h(h_)
-{
-top_gradient = top_gradient_;
-bottom_gradient = bottom_gradient_;
-}
-
-
-SurfaceData::~SurfaceData()
-{
- SDL_FreeSurface(surface);
-}
-
-SurfaceImpl*
-SurfaceData::create()
-{
-#ifndef NOOPENGL
- if (use_gl)
- return create_SurfaceOpenGL();
- else
- return create_SurfaceSDL();
-#else
- return create_SurfaceSDL();
-#endif
-}
-
-SurfaceSDL*
-SurfaceData::create_SurfaceSDL()
-{
- switch(type)
- {
- case LOAD:
- return new SurfaceSDL(file, use_alpha);
- case LOAD_PART:
- return new SurfaceSDL(file, x, y, w, h, use_alpha);
- case SURFACE:
- return new SurfaceSDL(surface, use_alpha);
- case GRADIENT:
- return new SurfaceSDL(top_gradient, bottom_gradient, w, h);
- }
- assert(0);
-}
-
-SurfaceOpenGL*
-SurfaceData::create_SurfaceOpenGL()
-{
-#ifndef NOOPENGL
- switch(type)
- {
- case LOAD:
- return new SurfaceOpenGL(file, use_alpha);
- case LOAD_PART:
- return new SurfaceOpenGL(file, x, y, w, h, use_alpha);
- case SURFACE:
- return new SurfaceOpenGL(surface, use_alpha);
- case GRADIENT:
- return new SurfaceOpenGL(top_gradient, bottom_gradient, w, h);
- }
-#endif
- assert(0);
-}
-
-#ifndef NOOPENGL
-/* Quick utility function for texture creation */
-static int power_of_two(int input)
-{
- int value = 1;
-
- while ( value < input )
- {
- value <<= 1;
- }
- return value;
-}
-#endif
-
-Surface::Surface(SDL_Surface* surf, int use_alpha)
- : data(surf, use_alpha), w(0), h(0)
-{
- impl = data.create();
- if (impl)
- {
- w = impl->w;
- h = impl->h;
- }
- surfaces.push_back(this);
-}
-
-Surface::Surface(const std::string& file, int use_alpha)
- : data(file, use_alpha), w(0), h(0)
-{
- impl = data.create();
- if (impl)
- {
- w = impl->w;
- h = impl->h;
- }
- surfaces.push_back(this);
-}
-
-Surface::Surface(const std::string& file, int x, int y, int w, int h, int use_alpha)
- : data(file, x, y, w, h, use_alpha), w(0), h(0)
-{
- impl = data.create();
- if (impl)
- {
- w = impl->w;
- h = impl->h;
- }
- surfaces.push_back(this);
-}
-
-Surface::Surface(Color top_background, Color bottom_background, int w_, int h_)
- : data(top_background, bottom_background, 0, 0), w(0), h(0)
-{
- // FIXME: Gradient surfaces currently don't accept width/height
- // If nonzero values are passed to data.create(), supertux
- // crashes.
- impl = data.create();
- if (impl)
- {
- w = impl->w;
- h = impl->h;
- }
- surfaces.push_back(this);
-}
-
-void
-Surface::reload()
-{
- delete impl;
- impl = data.create();
- if (impl)
- {
- w = impl->w;
- h = impl->h;
- }
-}
-
-Surface::~Surface()
-{
-#ifdef DEBUG
- bool found = false;
- for(std::list<Surface*>::iterator i = surfaces.begin(); i != surfaces.end();
- ++i)
- {
- if(*i == this)
- {
- found = true; break;
- }
- }
- if(!found)
- printf("Error: Surface freed twice!!!\n");
-#endif
- surfaces.remove(this);
- delete impl;
-}
-
-void
-Surface::reload_all()
-{
- for(Surfaces::iterator i = surfaces.begin(); i != surfaces.end(); ++i)
- {
- (*i)->reload();
- }
-}
-
-void
-Surface::debug_check()
-{
- for(Surfaces::iterator i = surfaces.begin(); i != surfaces.end(); ++i)
- {
- printf("Surface not freed: T:%d F:%s.\n", (*i)->data.type,
- (*i)->data.file.c_str());
- }
-}
-
-void
-Surface::resize(int w_, int h_)
-{
- if (impl)
- {
- w = w_;
- h = h_;
- if (impl->resize(w_,h_) == -2)
- reload();
- }
-}
-
-SDL_Surface*
-sdl_surface_part_from_file(const std::string& file, int x, int y, int w, int h, int use_alpha)
-{
- SDL_Rect src;
- SDL_Surface * sdl_surface;
- SDL_Surface * temp;
- SDL_Surface * conv;
-
- temp = IMG_Load(file.c_str());
-
- if (temp == NULL)
- st_abort("Can't load", file);
-
- /* Set source rectangle for conv: */
-
- src.x = x;
- src.y = y;
- src.w = w;
- src.h = h;
-
- conv = SDL_CreateRGBSurface(temp->flags, w, h, temp->format->BitsPerPixel,
- temp->format->Rmask,
- temp->format->Gmask,
- temp->format->Bmask,
- temp->format->Amask);
-
- /* #if SDL_BYTEORDER == SDL_BIG_ENDIAN
- 0xff000000, 0x00ff0000, 0x0000ff00, 0x000000ff);
- #else
-
- 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
- #endif*/
-
- SDL_SetAlpha(temp,0,0);
-
- SDL_BlitSurface(temp, &src, conv, NULL);
- if(use_alpha == IGNORE_ALPHA && !use_gl)
- sdl_surface = SDL_DisplayFormat(conv);
- else
- sdl_surface = SDL_DisplayFormatAlpha(conv);
-
- if (sdl_surface == NULL)
- st_abort("Can't covert to display format", file);
-
- if (use_alpha == IGNORE_ALPHA && !use_gl)
- SDL_SetAlpha(sdl_surface, 0, 0);
-
- SDL_FreeSurface(temp);
- SDL_FreeSurface(conv);
-
- return sdl_surface;
-}
-
-SDL_Surface*
-sdl_surface_from_file(const std::string& file, int use_alpha)
-{
- SDL_Surface* sdl_surface;
- SDL_Surface* temp;
-
- temp = IMG_Load(file.c_str());
-
- if (temp == NULL)
- st_abort("Can't load", file);
-
- if(use_alpha == IGNORE_ALPHA && !use_gl)
- sdl_surface = SDL_DisplayFormat(temp);
- else
- sdl_surface = SDL_DisplayFormatAlpha(temp);
-
- if (sdl_surface == NULL)
- st_abort("Can't covert to display format", file);
-
- if (use_alpha == IGNORE_ALPHA && !use_gl)
- SDL_SetAlpha(sdl_surface, 0, 0);
-
- SDL_FreeSurface(temp);
-
- return sdl_surface;
-}
-
-SDL_Surface*
-sdl_surface_from_sdl_surface(SDL_Surface* sdl_surf, int use_alpha)
-{
- SDL_Surface* sdl_surface;
- Uint32 saved_flags;
- Uint8 saved_alpha;
-
- /* Save the alpha blending attributes */
- saved_flags = sdl_surf->flags&(SDL_SRCALPHA|SDL_RLEACCELOK);
- saved_alpha = sdl_surf->format->alpha;
- if ( (saved_flags & SDL_SRCALPHA)
- == SDL_SRCALPHA )
- {
- SDL_SetAlpha(sdl_surf, 0, 0);
- }
-
- if(use_alpha == IGNORE_ALPHA && !use_gl)
- sdl_surface = SDL_DisplayFormat(sdl_surf);
- else
- sdl_surface = SDL_DisplayFormatAlpha(sdl_surf);
-
- /* Restore the alpha blending attributes */
- if ( (saved_flags & SDL_SRCALPHA)
- == SDL_SRCALPHA )
- {
- SDL_SetAlpha(sdl_surface, saved_flags, saved_alpha);
- }
-
- if (sdl_surface == NULL)
- st_abort("Can't covert to display format", "SURFACE");
-
- if (use_alpha == IGNORE_ALPHA && !use_gl)
- SDL_SetAlpha(sdl_surface, 0, 0);
-
- return sdl_surface;
-}
-
-SDL_Surface*
-sdl_surface_from_gradient(Color top, Color bottom, int w, int h)
-{
- SDL_Surface* sdl_surface;
-
- sdl_surface = SDL_CreateRGBSurface(screen->flags, w, h,
- screen->format->BitsPerPixel, screen->format->Rmask,
- screen->format->Gmask, screen->format->Bmask, screen->format->Amask);
-
- if(sdl_surface == NULL)
- st_abort("Cannot create surface for the gradient", "SURFACE");
-
- if(top == bottom)
- {
- SDL_FillRect(sdl_surface, NULL, SDL_MapRGB(sdl_surface->format,
- top.red, top.green, top.blue));
- }
- else
- {
- float redstep = (float(bottom.red)-float(top.red)) / float(h);
- float greenstep = (float(bottom.green)-float(top.green)) / float(h);
- float bluestep = (float(bottom.blue) - float(top.blue)) / float(h);
-
- SDL_Rect rect;
- rect.x = 0;
- rect.w = w;
- rect.h = 1;
- for(float y = 0; y < h; y++)
- {
- rect.y = (int)y;
- SDL_FillRect(sdl_surface, &rect, SDL_MapRGB(sdl_surface->format,
- int(float(top.red) + redstep * y),
- int(float(top.green) + greenstep * y),
- int(float(top.blue) + bluestep * y)));
- }
- }
-
- return sdl_surface;
-}
-
-//---------------------------------------------------------------------------
-
-SurfaceImpl::SurfaceImpl()
-{}
-
-SurfaceImpl::~SurfaceImpl()
-{
- SDL_FreeSurface(sdl_surface);
-}
-
-SDL_Surface* SurfaceImpl::get_sdl_surface() const
-{
- return sdl_surface;
-}
-
-int SurfaceImpl::resize(int w_, int h_)
-{
- w = w_;
- h = h_;
- SDL_Rect dest;
- dest.x = 0;
- dest.y = 0;
- dest.w = w;
- dest.h = h;
- int ret = SDL_SoftStretch(sdl_surface, NULL,
- sdl_surface, &dest);
- return ret;
-}
-
-#ifndef NOOPENGL
-SurfaceOpenGL::SurfaceOpenGL(SDL_Surface* surf, int use_alpha)
-{
- sdl_surface = sdl_surface_from_sdl_surface(surf, use_alpha);
- create_gl(sdl_surface,&gl_texture);
-
- w = sdl_surface->w;
- h = sdl_surface->h;
-}
-
-SurfaceOpenGL::SurfaceOpenGL(const std::string& file, int use_alpha)
-{
- sdl_surface = sdl_surface_from_file(file, use_alpha);
- create_gl(sdl_surface,&gl_texture);
-
- w = sdl_surface->w;
- h = sdl_surface->h;
-}
-
-SurfaceOpenGL::SurfaceOpenGL(const std::string& file_, int x_, int y_, int w_, int h_, int use_alpha_)
-{
- sdl_surface = sdl_surface_part_from_file(file_,x_,y_,w_,h_,use_alpha_);
-
- create_gl(sdl_surface, &gl_texture);
-
- w = sdl_surface->w;
- h = sdl_surface->h;
-}
-
-SurfaceOpenGL::SurfaceOpenGL(Color top_gradient, Color bottom_gradient, int w, int h)
-{
- sdl_surface = sdl_surface_from_gradient(top_gradient, bottom_gradient, w, h);
- create_gl(sdl_surface, &gl_texture);
-
- w = sdl_surface->w;
- h = sdl_surface->h;
-}
-
-SurfaceOpenGL::~SurfaceOpenGL()
-{
- glDeleteTextures(1, &gl_texture);
-}
-
-void
-SurfaceOpenGL::create_gl(SDL_Surface * surf, GLuint * tex)
-{
- Uint32 saved_flags;
- Uint8 saved_alpha;
- int w, h;
- SDL_Surface *conv;
-
- w = power_of_two(surf->w);
- h = power_of_two(surf->h),
-
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
- conv = SDL_CreateRGBSurface(SDL_SWSURFACE, w, h, surf->format->BitsPerPixel,
- 0xff000000, 0x00ff0000, 0x0000ff00, 0x000000ff);
-#else
- conv = SDL_CreateRGBSurface(SDL_SWSURFACE, w, h, surf->format->BitsPerPixel,
- 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
-#endif
-
- /* Save the alpha blending attributes */
- saved_flags = surf->flags&(SDL_SRCALPHA|SDL_RLEACCELOK);
- saved_alpha = surf->format->alpha;
- if ( (saved_flags & SDL_SRCALPHA)
- == SDL_SRCALPHA )
- {
- SDL_SetAlpha(surf, 0, 0);
- }
-
- SDL_BlitSurface(surf, 0, conv, 0);
-
- /* Restore the alpha blending attributes */
- if ( (saved_flags & SDL_SRCALPHA)
- == SDL_SRCALPHA )
- {
- SDL_SetAlpha(surf, saved_flags, saved_alpha);
- }
-
- // We check all the pixels of the surface to figure out which
- // internal format OpenGL should use for storing it, ie. if no alpha
- // is present store in RGB instead of RGBA, this saves a few bytes
- // of memory, but much more importantly it makes the game look
- // *much* better in 16bit color mode
- int internal_format = GL_RGB10_A2;
- bool has_alpha = false;
-
- unsigned char* buf = static_cast<unsigned char*>(conv->pixels);
- for (int y = 0; y < surf->h; ++y)
- for (int x = 0; x < surf->w; ++x)
- {
- if (buf[(conv->pitch*y + x*4) + 3] != 255)
- {
- has_alpha = true;
- break;
- }
- }
-
- if (!has_alpha)
- {
- internal_format = GL_RGB;
- }
-
- glGenTextures(1, &*tex);
- glBindTexture(GL_TEXTURE_2D , *tex);
- 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_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- glPixelStorei(GL_UNPACK_ROW_LENGTH, conv->pitch / conv->format->BytesPerPixel);
- glTexImage2D(GL_TEXTURE_2D, 0, internal_format, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, conv->pixels);
- glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
-
- SDL_FreeSurface(conv);
-}
-
-int
-SurfaceOpenGL::draw(float x, float y, Uint8 alpha, Uint32 effect)
-{
- float pw = power_of_two(w);
- float ph = power_of_two(h);
-
- if(effect & SEMI_TRANSPARENT)
- alpha = 128;
-
- glEnable(GL_TEXTURE_2D);
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
- glColor4ub(alpha, alpha, alpha, alpha);
-
- glBindTexture(GL_TEXTURE_2D, gl_texture);
-
- glBegin(GL_QUADS);
-
- if(effect & VERTICAL_FLIP)
- {
- glTexCoord2f(0, 0);
- glVertex2f(x, (float)h+y);
-
- glTexCoord2f((float)w / pw, 0);
- glVertex2f((float)w+x, (float)h+y);
-
- glTexCoord2f((float)w / pw, (float)h / ph);
- glVertex2f((float)w+x, y);
-
- glTexCoord2f(0, (float)h / ph);
- glVertex2f(x, y);
- }
- else
- {
- glTexCoord2f(0, 0);
- glVertex2f(x, y);
-
- glTexCoord2f((float)w / pw, 0);
- glVertex2f((float)w+x, y);
-
- glTexCoord2f((float)w / pw, (float)h / ph);
- glVertex2f((float)w+x, (float)h+y);
-
- glTexCoord2f(0, (float)h / ph);
- glVertex2f(x, (float)h+y);
- }
- glEnd();
-
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_BLEND);
-
- return 0;
-}
-
-int
-SurfaceOpenGL::draw_part(float sx, float sy, float x, float y, float w, float h, Uint8 alpha, Uint32 effect)
-{
- float pw = power_of_two(int(this->w));
- float ph = power_of_two(int(this->h));
-
- if(effect & SEMI_TRANSPARENT)
- alpha = 128;
-
- glBindTexture(GL_TEXTURE_2D, gl_texture);
-
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
- glColor4ub(alpha, alpha, alpha, alpha);
-
- glEnable(GL_TEXTURE_2D);
-
-
- glBegin(GL_QUADS);
-
- if(effect & VERTICAL_FLIP)
- {
- glTexCoord2f(sx / pw, sy / ph);
- glVertex2f(x, y);
-
- glTexCoord2f((float)(sx + w) / pw, sy / ph);
- glVertex2f(w+x, y);
-
- glTexCoord2f((sx+w) / pw, (sy+h) / ph);
- glVertex2f(w +x, h+y);
-
- glTexCoord2f(sx / pw, (float)(sy+h) / ph);
- glVertex2f(x, h+y);
- }
- else
- {
- glTexCoord2f(sx / pw, (float)(sy+h) / ph);
- glVertex2f(x, h+y);
-
- glTexCoord2f((sx+w) / pw, (sy+h) / ph);
- glVertex2f(w +x, h+y);
-
- glTexCoord2f((float)(sx + w) / pw, sy / ph);
- glVertex2f(w+x, y);
-
- glTexCoord2f(sx / pw, sy / ph);
- glVertex2f(x, y);
- }
-
- glEnd();
-
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_BLEND);
-
- return 0;
-}
-
-#if 0
-int
-SurfaceOpenGL::draw_stretched(float x, float y, int sw, int sh, Uint8 alpha)
-{
- float pw = power_of_two(int(this->w));
- float ph = power_of_two(int(this->h));
-
- glBindTexture(GL_TEXTURE_2D, gl_texture);
-
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
- glColor4ub(alpha, alpha, alpha, alpha);
-
- glEnable(GL_TEXTURE_2D);
-
-
- glBegin(GL_QUADS);
- glTexCoord2f(0, 0);
- glVertex2f(x, y);
- glTexCoord2f((float)w / pw, 0);
- glVertex2f(sw+x, y);
- glTexCoord2f((float)w / pw, (float)h / ph); glVertex2f((float)sw+x, (float)sh+y);
- glVertex2f(sw +x, sh+y);
- glTexCoord2f(0, (float)h / ph);
- glVertex2f(x, sh+y);
- glEnd();
-
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_BLEND);
-
- return 0;
-}
-#endif
-
-#endif
-
-SurfaceSDL::SurfaceSDL(SDL_Surface* surf, int use_alpha)
-{
- sdl_surface = sdl_surface_from_sdl_surface(surf, use_alpha);
- w = sdl_surface->w;
- h = sdl_surface->h;
-}
-
-SurfaceSDL::SurfaceSDL(const std::string& file, int use_alpha)
-{
- sdl_surface = sdl_surface_from_file(file, use_alpha);
- w = sdl_surface->w;
- h = sdl_surface->h;
-}
-
-SurfaceSDL::SurfaceSDL(const std::string& file, int x, int y, int w, int h, int use_alpha)
-{
- sdl_surface = sdl_surface_part_from_file(file, x, y, w, h, use_alpha);
- w = sdl_surface->w;
- h = sdl_surface->h;
-}
-
-SurfaceSDL::SurfaceSDL(Color top_gradient, Color bottom_gradient, int w, int h)
-{
- sdl_surface = sdl_surface_from_gradient(top_gradient, bottom_gradient, w, h);
- w = sdl_surface->w;
- h = sdl_surface->h;
-}
-
-int
-SurfaceSDL::draw(float x, float y, Uint8 alpha, Uint32 effect)
-{
- SDL_Rect dest;
-
- dest.x = (int)x;
- dest.y = (int)y;
- dest.w = w;
- dest.h = h;
-
- if(effect & SEMI_TRANSPARENT)
- alpha = 128;
-
- if(effect & VERTICAL_FLIP) // FIXME: feel free to replace this hack
- {
- for(float sy = 0; sy < h; sy++)
- if(draw_part(0, sy, x, y+(h-sy), w, 1, alpha, NONE_EFFECT) == -2)
- return -2;
- return 0;
- }
-
- if(alpha != 255)
- {
- /* Create a Surface, make it using colorkey, blit surface into temp, apply alpha
- to temp sur, blit the temp into the screen */
- /* Note: this has to be done, since SDL doesn't allow to set alpha to surfaces that
- already have an alpha mask yet... */
-
- SDL_Surface* sdl_surface_copy = SDL_CreateRGBSurface (sdl_surface->flags,
- sdl_surface->w, sdl_surface->h, sdl_surface->format->BitsPerPixel,
- sdl_surface->format->Rmask, sdl_surface->format->Gmask,
- sdl_surface->format->Bmask,
- 0);
- int colorkey = SDL_MapRGB(sdl_surface_copy->format, 255, 0, 255);
- SDL_FillRect(sdl_surface_copy, NULL, colorkey);
- SDL_SetColorKey(sdl_surface_copy, SDL_SRCCOLORKEY, colorkey);
-
-
- SDL_BlitSurface(sdl_surface, NULL, sdl_surface_copy, NULL);
- SDL_SetAlpha(sdl_surface_copy ,SDL_SRCALPHA,alpha);
-
- int ret = SDL_BlitSurface(sdl_surface_copy, NULL, screen, &dest);
-
- SDL_FreeSurface (sdl_surface_copy);
- return ret;
- }
-
- int ret = SDL_BlitSurface(sdl_surface, NULL, screen, &dest);
-
- return ret;
-}
-
-int
-SurfaceSDL::draw_part(float sx, float sy, float x, float y, float w, float h, Uint8 alpha, Uint32 effect)
-{
- SDL_Rect src, dest;
-
- src.x = (int)sx;
- src.y = (int)sy;
- src.w = (int)w;
- src.h = (int)h;
-
- dest.x = (int)x;
- dest.y = (int)y;
- dest.w = (int)w;
- dest.h = (int)h;
-
- if(effect & SEMI_TRANSPARENT)
- alpha = 128;
-
- if(effect & VERTICAL_FLIP) // FIXME: feel free to replace this hack
- {
- for(float sy_ = sy; sy_ < h; sy_++)
- if(draw_part(sx, sy_, x, y+(h-sy_), w, 1, alpha, NONE_EFFECT) == -2)
- return -2;
- return 0;
- }
-
- if(alpha != 255)
- {
- /* Create a Surface, make it using colorkey, blit surface into temp, apply alpha
- to temp sur, blit the temp into the screen */
- /* Note: this has to be done, since SDL doesn't allow to set alpha to surfaces that
- already have an alpha mask yet... */
-
- SDL_Surface* sdl_surface_copy = SDL_CreateRGBSurface (sdl_surface->flags,
- sdl_surface->w, sdl_surface->h, sdl_surface->format->BitsPerPixel,
- sdl_surface->format->Rmask, sdl_surface->format->Gmask,
- sdl_surface->format->Bmask,
- 0);
- int colorkey = SDL_MapRGB(sdl_surface_copy->format, 255, 0, 255);
- SDL_FillRect(sdl_surface_copy, NULL, colorkey);
- SDL_SetColorKey(sdl_surface_copy, SDL_SRCCOLORKEY, colorkey);
-
-
- SDL_BlitSurface(sdl_surface, NULL, sdl_surface_copy, NULL);
- SDL_SetAlpha(sdl_surface_copy ,SDL_SRCALPHA,alpha);
-
- int ret = SDL_BlitSurface(sdl_surface_copy, NULL, screen, &dest);
-
- SDL_FreeSurface (sdl_surface_copy);
- return ret;
- }
-
- int ret = SDL_BlitSurface(sdl_surface, &src, screen, &dest);
-
- return ret;
-}
-
-#if 0
-int
-SurfaceSDL::draw_stretched(float x, float y, int sw, int sh, Uint8 alpha, bool update)
-{
- SDL_Rect dest;
-
- dest.x = (int)x;
- dest.y = (int)y;
- dest.w = (int)sw;
- dest.h = (int)sh;
-
- if(alpha != 255)
- SDL_SetAlpha(sdl_surface ,SDL_SRCALPHA,alpha);
-
-
- SDL_Surface* sdl_surface_copy = SDL_CreateRGBSurface (sdl_surface->flags,
- sw, sh, sdl_surface->format->BitsPerPixel,
- sdl_surface->format->Rmask, sdl_surface->format->Gmask,
- sdl_surface->format->Bmask,
- 0);
-
- SDL_BlitSurface(sdl_surface, NULL, sdl_surface_copy, NULL);
- SDL_SoftStretch(sdl_surface_copy, NULL, sdl_surface_copy, &dest);
-
- int ret = SDL_BlitSurface(sdl_surface_copy,NULL,screen,&dest);
- SDL_FreeSurface(sdl_surface_copy);
-
- if (update == UPDATE)
- update_rect(screen, dest.x, dest.y, dest.w, dest.h);
-
- return ret;
-}
-#endif
-
-SurfaceSDL::~SurfaceSDL()
-{}
-
-/* EOF */
+++ /dev/null
-// $Id$
-//
-// SuperTux
-// Copyright (C) 2004 Tobias Glaesser <tobi.web@gmx.de>
-//
-// 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., 59 Temple Place - Suite 330, Boston, MA
-// 02111-1307, USA.
-
-#ifndef SUPERTUX_TEXTURE_H
-#define SUPERTUX_TEXTURE_H
-
-#include <string>
-#include <list>
-
-#ifndef NOOPENGL
-#include "SDL_opengl.h"
-#endif
-
-#include "SDL.h"
-
-#include "screen.h"
-#include "vector.h"
-
-SDL_Surface* sdl_surface_from_sdl_surface(SDL_Surface* sdl_surf, int use_alpha);
-SDL_Surface* sdl_surface_from_nothing();
-
-class SurfaceImpl;
-class SurfaceSDL;
-class SurfaceOpenGL;
-class DrawingContext;
-
-/// bitset for drawing effects
-enum {
- /** Don't apply anything */
- NONE_EFFECT = 0x0000,
- /** Draw the Surface upside down */
- VERTICAL_FLIP = 0x0001,
- /** Draw the Surface with alpha equal to 128 */
- SEMI_TRANSPARENT = 0x0002
- };
-
-/** This class holds all the data necessary to construct a surface */
-class SurfaceData
-{
-public:
- enum ConstructorType { LOAD, LOAD_PART, SURFACE, GRADIENT };
- ConstructorType type;
- SDL_Surface* surface;
- std::string file;
- int use_alpha;
- int x;
- int y;
- int w;
- int h;
- Color top_gradient;
- Color bottom_gradient;
-
- SurfaceData(SDL_Surface* surf, int use_alpha_);
- SurfaceData(const std::string& file_, int use_alpha_);
- SurfaceData(const std::string& file_, int x_, int y_, int w_, int h_, int use_alpha_);
- SurfaceData(Color top_gradient_, Color bottom_gradient_, int w_, int h_);
- ~SurfaceData();
-
- SurfaceSDL* create_SurfaceSDL();
- SurfaceOpenGL* create_SurfaceOpenGL();
- SurfaceImpl* create();
-};
-
-/** Container class that holds a surface, necessary so that we can
- switch Surface implementations (OpenGL, SDL) on the fly */
-class Surface
-{
-public:
- SurfaceData data;
- SurfaceImpl* impl;
- int w;
- int h;
-
- typedef std::list<Surface*> Surfaces;
- static Surfaces surfaces;
-public:
- static void reload_all();
- static void debug_check();
-
- Surface(SDL_Surface* surf, int use_alpha);
- Surface(const std::string& file, int use_alpha);
- Surface(const std::string& file, int x, int y, int w, int h, int use_alpha);
- Surface(Color top_gradient, Color bottom_gradient, int w_, int h_);
- ~Surface();
-
- /** Reload the surface, which is necesarry in case of a mode swich */
- void reload();
-
- void resize(int widht, int height);
-};
-
-/** Surface implementation, all implementation have to inherit from
- this class */
-class SurfaceImpl
-{
-protected:
- SDL_Surface* sdl_surface;
-
-public:
- int w;
- int h;
-
-public:
- SurfaceImpl();
- virtual ~SurfaceImpl();
-
- /** Return 0 on success, -2 if surface needs to be reloaded */
- virtual int draw(float x, float y, Uint8 alpha, Uint32 effect = NONE_EFFECT) = 0;
- virtual int draw_part(float sx, float sy, float x, float y, float w, float h, Uint8 alpha, Uint32 effect = NONE_EFFECT) = 0;
-#if 0
- virtual int draw_stretched(float x, float y, int w, int h, Uint8 alpha, bool update) = 0;
-#endif
- int resize(int w_, int h_);
-
- SDL_Surface* get_sdl_surface() const; // @evil@ try to avoid this function
-};
-
-class SurfaceSDL : public SurfaceImpl
-{
-public:
- SurfaceSDL(SDL_Surface* surf, int use_alpha);
- SurfaceSDL(const std::string& file, int use_alpha);
- SurfaceSDL(const std::string& file, int x, int y, int w, int h, int use_alpha);
- SurfaceSDL(Color top_gradient, Color bottom_gradient, int w, int h);
- virtual ~SurfaceSDL();
-
- int draw(float x, float y, Uint8 alpha, Uint32 effect = NONE_EFFECT);
- int draw_part(float sx, float sy, float x, float y, float w, float h, Uint8 alpha, Uint32 effect = NONE_EFFECT);
-#if 0
- int draw_stretched(float x, float y, int w, int h, Uint8 alpha);
-#endif
-};
-
-#ifndef NOOPENGL
-class SurfaceOpenGL : public SurfaceImpl
-{
-public:
- GLuint gl_texture;
-
-public:
- SurfaceOpenGL(SDL_Surface* surf, int use_alpha);
- SurfaceOpenGL(const std::string& file, int use_alpha);
- SurfaceOpenGL(const std::string& file, int x, int y, int w, int h, int use_alpha);
- SurfaceOpenGL(Color top_gradient, Color bottom_gradient, int w, int h);
-
- virtual ~SurfaceOpenGL();
-
- int draw(float x, float y, Uint8 alpha, Uint32 effect = NONE_EFFECT);
- int draw_part(float sx, float sy, float x, float y, float w, float h, Uint8 alpha, Uint32 effect = NONE_EFFECT);
-#if 0
- int draw_stretched(float x, float y, int w, int h, Uint8 alpha);
-#endif
-
-private:
- void create_gl(SDL_Surface * surf, GLuint * tex);
-};
-#endif
-
-#endif /*SUPERTUX_TEXTURE_H*/
-
-/* Local Variables: */
-/* mode: c++ */
-/* End: */
projects / supertux.git / commitdiff