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/*
* JLib - Jacob's Library.
* Copyright (C) 2003, 2004 Juan Carlos Seijo Prez
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Juan Carlos Seijo Prez
* jacob@mainreactor.net
*/
/** Macros y funciones de utilidad diversa.
* @file JUtil.cpp.
* @author Juan Carlos Seijo Prez
* @date 16/10/2003
* @version 0.0.1 - 16/10/2003 - Primera versin.
*/
#include <JLib/Util/JUtil.h>
// Carga una fuente de un fichero Targa, con caracteres de 8x8 pxels,
// 16 filas y 16 columnas (256).
void JDumpTGAFontBits(const JString &TGAFileName, const JString &outFileName)
{
JImage img;
if (!img.Load(TGAFileName))
return;
u8 *chars[256];
u8 *ptr;
u32 rowSize;
s32 ind, imgInd;
rowSize = (u32)(img.Line(1) - img.Line(0));
for (s32 j = 0; j < 16; ++j)
{
// Avanza al primer caracter de la siguiente fila
ptr = img.Line(j * 8);
for (s32 i = 0; i < 16; ++i)
{
ind = ((15 - j) * 16) + i; // = (row * nCharsRow) + col
// Reservamos 8 bytes para cada caracter
chars[ind] = new u8[8];
memset(chars[ind], 0, 8 * sizeof(s8));
for (s32 y = 0; y < 8; ++y)
{
imgInd = (y * rowSize);
for (s32 x = 0; x < 8; ++x)
{
if (0xFF & *(ptr + imgInd))
{
// 7 - y empieza a rellenar por abajo, ya que en memoria est invertido
chars[ind][y] |= 0x80 >> x;
}
imgInd += 4;
}
}
// Avanza al siguiente caracter de la fila
ptr += 32;
}
}
// Vuelca en formato de array los datos de la fuente al fichero dado
JTextFile outFile(outFileName);
if (outFile.Open())
{
outFile.Printf("const u8 font[256][] = {\n");
for (s32 row = 0; row < 16; ++row)
{
for (s32 col = 0; col < 16; ++col)
{
outFile.Printf("{");
for (s32 idx = 0; idx < 8; ++idx)
{
outFile.Printf("0x%02x,", chars[(row * 16) + col][idx]);
}
outFile.Printf("},\n");
}
}
outFile.Printf("};\n");
}
else
{
printf("DumpTGAFontBits: Error al abrir el archivo.\n");
}
for (s32 i = 0; i < 256; ++i)
delete[] chars[i];
}
JVideoMode * JListVideoModes(s32 *count, s32 depth)
{
bool uninit = false;
s32 bpps[] = {32, 24, 16, 8};
s32 *pBpps = bpps, nBpps = 4;
if (depth != 0)
{
pBpps = &depth;
nBpps = 1;
}
if (SDL_WasInit(SDL_INIT_VIDEO) == 0)
{
// Video no inicializado, lo inicializa
if (-1 == SDL_Init(SDL_INIT_VIDEO))
{
// No se puede iniciar el video
return 0;
}
// Deinicializar SDL al final
uninit = true;
}
std::vector<JVideoMode*> modes;
SDL_Rect **modeList = 0;
JVideoMode *mode;
// Busca los modos de vdeo sin aceleracin para la profundidad actual y comprueba para el resto de profundidades
modeList = SDL_ListModes(0, SDL_FULLSCREEN);
if ((long)modeList == 0 || (long)modeList == -1)
{
return 0;
}
s32 rec;
for (s32 k = 0; k < nBpps; ++k)
{
for (s32 j = 0; modeList[j] != 0; ++j)
{
if (0 != (rec = SDL_VideoModeOK(modeList[j]->w, modeList[j]->h, pBpps[k], SDL_HWSURFACE | SDL_FULLSCREEN))
&& (j == 0 || (modeList[j]->w != modeList[j - 1]->w || modeList[j]->h != modeList[j - 1]->h)))
{
mode = new JVideoMode;
mode->w = modeList[j]->w;
mode->h = modeList[j]->h;
mode->bpp = pBpps[k];
mode->hw = true;
modes.push_back(mode);
}
}
}
JVideoMode *result = 0;
if (modes.size() == 0)
{
result = 0;
}
else
{
if (count)
*count = modes.size();
result = new JVideoMode [modes.size() + 1];
for (u32 i = 0; i < modes.size(); ++i)
{
memcpy(&result[i], modes[i], sizeof(JVideoMode));
delete modes[i];
}
// ltimo elemento
result[modes.size()].w = result[modes.size()].h = -1;
modes.clear();
}
if (uninit)
{
SDL_QuitSubSystem(SDL_INIT_VIDEO);
}
return result;
}
void JDumpImage(JImage *img, s32 n)
{
SDL_Surface *s = img->Surface();
SDL_PixelFormat *fmt = s->format;
if (0 != SDL_LockSurface(s))
{
return;
}
fprintf(stderr,
"%dx%d@%d CKEY: %08x ALPHA: %d SRCALPHA: %s SRCCOLORKEY: %s RLE: %s\n",
s->w, s->h, fmt->BitsPerPixel, fmt->colorkey, fmt->alpha,
s->flags & SDL_SRCALPHA ? "yes" : "no",
s->flags & SDL_SRCCOLORKEY ? "yes" : "no",
s->flags & SDL_RLEACCEL ? "yes" : "no");
fprintf(stderr,
"RGBAmask: R: 0x%08x G: 0x%08x B: 0x%08x A: 0x%08x\n",
fmt->Rmask, fmt->Gmask, fmt->Bmask, fmt->Amask);
fprintf(stderr,
"RGBAshift: R: 0x%08x G: 0x%08x B: 0x%08x A: 0x%08x\n",
fmt->Rshift, fmt->Gshift, fmt->Bshift, fmt->Ashift);
fprintf(stderr,
"RGBAloss: R: 0x%08x G: 0x%08x B: 0x%08x A: 0x%08x\n",
fmt->Rloss, fmt->Gloss, fmt->Bloss, fmt->Aloss);
// Muestra el valor de algunos pxeles
if (n != 0)
{
fprintf(stderr, "First %d pixels:\n", n);
for (s32 j = 0, count = 1; count <= n && j < s->h; ++j)
{
for (s32 i = 0; count <= n && i < s->w; ++i)
{
fprintf(stderr, "%08x ", img->GetPixel(i, j));
if (count % 10 == 0)
fprintf(stderr, "\n");
++count;
}
}
fprintf(stderr, "First %d pixels != CKEY:\n", n);
for (s32 j = 0, count = 1; count <= n && j < s->h; ++j)
{
for (s32 i = 0; count <= n && i < s->w; ++i)
{
if (img->GetPixel(i, j) != fmt->colorkey)
{
fprintf(stderr, "%08x ", img->GetPixel(i, j));
if (count % 10 == 0)
fprintf(stderr, "\n");
++count;
}
}
}
fprintf(stderr, "\n");
}
SDL_UnlockSurface(s);
}
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