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/*
This file is part of Warzone 2100.
Copyright (C) 1999-2004 Eidos Interactive
Copyright (C) 2005-2012 Warzone 2100 Project
Warzone 2100 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.
Warzone 2100 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 Warzone 2100; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/***************************************************************************/
/*
* pieBlitFunc.c
*
* patch for exisitng ivis rectangle draw functions.
*
*/
/***************************************************************************/
#include "lib/framework/frame.h"
#include "lib/framework/opengl.h"
#include <time.h>
#include "lib/ivis_opengl/pieblitfunc.h"
#include "lib/ivis_opengl/piedef.h"
#include "lib/ivis_opengl/piemode.h"
#include "lib/ivis_opengl/piestate.h"
#include "lib/ivis_opengl/pieclip.h"
#include "lib/ivis_opengl/piefunc.h"
#include "lib/ivis_opengl/piepalette.h"
#include "lib/ivis_opengl/tex.h"
#include "piematrix.h"
#include "screen.h"
/***************************************************************************/
/*
* Local Variables
*/
/***************************************************************************/
#define pie_FILLRED 16
#define pie_FILLGREEN 16
#define pie_FILLBLUE 128
#define pie_FILLTRANS 128
static GLuint radarTexture;
static GLuint radarSizeX, radarSizeY;
static GLfloat radarTexX, radarTexY;
/***************************************************************************/
/*
* Source
*/
/***************************************************************************/
void iV_Line(int x0, int y0, int x1, int y1, PIELIGHT colour)
{
pie_SetTexturePage(TEXPAGE_NONE);
pie_SetAlphaTest(false);
glColor4ubv(colour.vector);
glBegin(GL_LINE_STRIP);
glVertex2i(x0, y0);
glVertex2i(x1, y1);
glEnd();
}
/**
* Assumes render mode set up externally, draws filled rectangle.
*/
static void pie_DrawRect(float x0, float y0, float x1, float y1, PIELIGHT colour)
{
pie_SetAlphaTest(false);
glColor4ubv(colour.vector);
glBegin(GL_TRIANGLE_STRIP);
glVertex2f(x0, y0);
glVertex2f(x1, y0);
glVertex2f(x0, y1);
glVertex2f(x1, y1);
glEnd();
}
/***************************************************************************/
void iV_Box(int x0,int y0, int x1, int y1, PIELIGHT colour)
{
pie_SetTexturePage(TEXPAGE_NONE);
pie_SetAlphaTest(false);
if (x0>rendSurface.clip.right || x1<rendSurface.clip.left ||
y0>rendSurface.clip.bottom || y1<rendSurface.clip.top)
{
return;
}
if (x0<rendSurface.clip.left)
x0 = rendSurface.clip.left;
if (x1>rendSurface.clip.right)
x1 = rendSurface.clip.right;
if (y0<rendSurface.clip.top)
y0 = rendSurface.clip.top;
if (y1>rendSurface.clip.bottom)
y1 = rendSurface.clip.bottom;
glColor4ubv(colour.vector);
glBegin(GL_LINE_STRIP);
glVertex2f(x0, y0);
glVertex2f(x1, y0);
glVertex2f(x1, y1);
glVertex2f(x0, y1);
glVertex2f(x0, y0);
glEnd();
}
/***************************************************************************/
void pie_BoxFill(int x0,int y0, int x1, int y1, PIELIGHT colour)
{
pie_SetRendMode(REND_OPAQUE);
pie_SetTexturePage(TEXPAGE_NONE);
pie_DrawRect(x0, y0, x1, y1, colour);
}
/***************************************************************************/
void iV_TransBoxFill(float x0, float y0, float x1, float y1)
{
PIELIGHT light;
light.byte.r = pie_FILLRED;
light.byte.g = pie_FILLGREEN;
light.byte.b = pie_FILLBLUE;
light.byte.a = pie_FILLTRANS;
pie_UniTransBoxFill(x0, y0, x1, y1, light);
}
/***************************************************************************/
void pie_UniTransBoxFill(float x0, float y0, float x1, float y1, PIELIGHT light)
{
pie_SetTexturePage(TEXPAGE_NONE);
pie_SetRendMode(REND_ALPHA);
pie_DrawRect(x0, y0, x1, y1, light);
}
/***************************************************************************/
bool assertValidImage(IMAGEFILE *imageFile, unsigned id)
{
ASSERT_OR_RETURN(false, id < imageFile->imageDefs.size(), "Out of range 1: %u/%d", id, (int)imageFile->imageDefs.size());
ASSERT_OR_RETURN(false, imageFile->imageDefs[id].TPageID < imageFile->pages.size(), "Out of range 2: %u", imageFile->imageDefs[id].TPageID);
return true;
}
static PIEIMAGE makePieImage(IMAGEFILE *imageFile, unsigned id, PIERECT *dest = NULL, int x = 0, int y = 0)
{
ImageDef const &image = imageFile->imageDefs[id];
PIEIMAGE pieImage;
pieImage.texPage = imageFile->pages[image.TPageID].id;
pieImage.invTextureSize = 1.f / imageFile->pages[image.TPageID].size;
pieImage.tu = image.Tu;
pieImage.tv = image.Tv;
pieImage.tw = image.Width;
pieImage.th = image.Height;
if (dest != NULL)
{
dest->x = x + image.XOffset;
dest->y = y + image.YOffset;
dest->w = image.Width;
dest->h = image.Height;
}
return pieImage;
}
void iV_DrawImage(IMAGEFILE *ImageFile, UWORD ID, int x, int y)
{
if (!assertValidImage(ImageFile, ID))
{
return;
}
PIERECT dest;
PIEIMAGE pieImage = makePieImage(ImageFile, ID, &dest, x, y);
pie_SetRendMode(REND_ALPHA);
pie_SetAlphaTest(true);
pie_DrawImage(&pieImage, &dest);
}
void iV_DrawImageTc(IMAGEFILE *imageFile, unsigned id, unsigned idTc, int x, int y, PIELIGHT colour)
{
if (!assertValidImage(imageFile, id) || !assertValidImage(imageFile, idTc))
{
return;
}
PIERECT dest;
PIEIMAGE pieImage = makePieImage(imageFile, id, &dest, x, y);
PIEIMAGE pieImageTc = makePieImage(imageFile, idTc);
pie_SetRendMode(REND_ALPHA);
pie_SetAlphaTest(true);
pie_DrawImage(&pieImage, &dest);
pie_DrawImage(&pieImageTc, &dest, colour);
}
void iV_DrawImageRect(IMAGEFILE *ImageFile, UWORD ID, int x, int y, int Width, int Height)
{
SDWORD hRep, hRemainder, vRep, vRemainder;
assertValidImage(ImageFile, ID);
ImageDef *Image = &ImageFile->imageDefs[ID];
pie_SetRendMode(REND_OPAQUE);
pie_SetAlphaTest(true);
PIERECT dest;
PIEIMAGE pieImage = makePieImage(ImageFile, ID, &dest, x, y);
vRemainder = Height % Image->Height;
hRemainder = Width % Image->Width;
for (vRep = 0; vRep < Height/Image->Height; vRep++)
{
pieImage.tw = Image->Width;
dest.x = x + Image->XOffset;
dest.w = Image->Width;
for (hRep = 0; hRep < Width/Image->Width; hRep++)
{
pie_DrawImage(&pieImage, &dest);
dest.x += Image->Width;
}
//draw remainder
if (hRemainder > 0)
{
pieImage.tw = hRemainder;
dest.w = hRemainder;
pie_DrawImage(&pieImage, &dest);
}
dest.y += Image->Height;
}
//draw remainder
if (vRemainder > 0)
{
//as above
pieImage.tw = Image->Width;
dest.x = x + Image->XOffset;
dest.w = Image->Width;
pieImage.th = vRemainder;
dest.h = vRemainder;
for (hRep = 0; hRep < Width/Image->Width; hRep++)
{
pie_DrawImage(&pieImage, &dest);
dest.x += Image->Width;
}
//draw remainder
if (hRemainder > 0)
{
pieImage.tw = hRemainder;
dest.w = hRemainder;
pie_DrawImage(&pieImage, &dest);
}
}
}
void iV_DrawImageScaled(IMAGEFILE *ImageFile, UWORD ID, int x, int y, int w, int h)
{
if (!assertValidImage(ImageFile, ID))
{
return;
}
PIERECT dest;
PIEIMAGE pieImage = makePieImage(ImageFile, ID, &dest, x, y);
dest.w = w;
dest.h = h;
pie_SetRendMode(REND_ALPHA);
pie_SetAlphaTest(true);
pie_DrawImage(&pieImage, &dest);
}
/* FIXME: WTF is this supposed to do? Looks like some other functionality
* was retrofitted onto something else. - Per */
void pie_UploadDisplayBuffer()
{
screen_Upload(NULL, false);
}
bool pie_InitRadar(void)
{
radarTexture = _TEX_INDEX;
glGenTextures(1, &_TEX_PAGE[_TEX_INDEX].id);
_TEX_INDEX++;
return true;
}
bool pie_ShutdownRadar(void)
{
glDeleteTextures(1, &_TEX_PAGE[radarTexture].id);
return true;
}
/** Store radar texture with given width and height. */
void pie_DownLoadRadar(UDWORD *buffer, int width, int height, bool filter)
{
int w = 1, h = 1;
char *black;
/* Find power of two size */
while (width > (w *= 2)) {}
while (height > (h *= 2)) {}
pie_SetTexturePage(radarTexture);
black = (char *)calloc(1, w * h * 4);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, black);
free(black);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
if (filter)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
else
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
radarSizeX = width;
radarSizeY = height;
radarTexX = ((GLfloat)width / (GLfloat)w);
radarTexY = ((GLfloat)height / (GLfloat)h);
}
/** Display radar texture using the given height and width, depending on zoom level. */
void pie_RenderRadar(int x, int y, int width, int height)
{
pie_SetTexturePage(radarTexture);
pie_SetRendMode(REND_ALPHA);
glColor4ubv(WZCOL_WHITE.vector);
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2f(0, 0); glVertex2f(x, y);
glTexCoord2f(radarTexX, 0); glVertex2f(x + width, y);
glTexCoord2f(0, radarTexY); glVertex2f(x, y + height);
glTexCoord2f(radarTexX, radarTexY); glVertex2f(x + width, y + height);
glEnd();
}
void pie_LoadBackDrop(SCREENTYPE screenType)
{
char backd[128];
//randomly load in a backdrop piccy.
srand( (unsigned)time(NULL) + 17 ); // Use offset since time alone doesn't work very well
switch (screenType)
{
case SCREEN_RANDOMBDROP:
snprintf(backd, sizeof(backd), "texpages/bdrops/backdrop%i.png", rand() % NUM_BACKDROPS); // Range: 0 to (NUM_BACKDROPS-1)
break;
case SCREEN_MISSIONEND:
sstrcpy(backd, "texpages/bdrops/missionend.png");
break;
case SCREEN_CREDITS:
default:
sstrcpy(backd, "texpages/bdrops/credits.png");
break;
}
screen_SetBackDropFromFile(backd);
}
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