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#include <SDL/SDL.h>
#include "../PHL.h"
#include "../game.h"
#include "../qda.h"
#include "graphics.h"
SDL_Surface* screen = NULL;
SDL_Surface* drawbuffer = NULL;
SDL_Surface* backbuffer = NULL;
static uint32_t tframe;
SDL_Color PHL_NewRGB(uint8_t r, uint8_t g, uint8_t b)
{
SDL_Color ret = {.r = r, .b = b, .g = g};
return ret;
}
void PHL_GraphicsInit()
{
if ( SDL_Init(SDL_INIT_VIDEO) < 0) {
fprintf(stderr, "Error");
SDL_Delay(5000);
exit(EXIT_FAILURE);
}
SDL_ShowCursor(SDL_DISABLE);
uint32_t flags = SDL_HWSURFACE|SDL_DOUBLEBUF;
#ifdef PANDORA
flags |= SDL_FULLSCREEN;
#endif
screen = SDL_SetVideoMode(640, 480, 0, flags);
drawbuffer = screen;
backbuffer = PHL_NewSurface(640, 480);
tframe = SDL_GetTicks();
}
void PHL_GraphicsExit()
{
SDL_FreeSurface(backbuffer);
SDL_Quit();
}
void PHL_StartDrawing()
{
PHL_ResetDrawbuffer();
}
void PHL_EndDrawing()
{
SDL_Flip(screen);
uint32_t tnext = tframe + 1000/60;
while((tframe = SDL_GetTicks())<tnext)
SDL_Delay(10);
}
void PHL_ForceScreenUpdate()
{
}
void PHL_SetDrawbuffer(PHL_Surface surf)
{
drawbuffer = surf;
}
void PHL_ResetDrawbuffer()
{
drawbuffer = screen;
}
//PHL_RGB PHL_NewRGB(int r, int g, int b);
void PHL_SetColorKey(PHL_Surface surf, int r, int g, int b)
{
SDL_SetColorKey(surf, SDL_SRCCOLORKEY, SDL_MapRGB(surf->format, r, g, b));
}
PHL_Surface PHL_NewSurface(int w, int h)
{
return SDL_CreateRGBSurface(0, w, h, 32, 0, 0, 0, 0);
}
void PHL_FreeSurface(PHL_Surface surf)
{
SDL_FreeSurface(surf);
}
//PHL_Surface PHL_LoadBMP(char* fname);
PHL_Surface PHL_LoadBMP(int index)
{
SDL_Surface* surf;
FILE* f;
if ( (f = fopen("data/bmp.qda", "rb")) ) {
uint8_t* QDAFile = (uint8_t*)malloc(headers[index].size);
fseek(f, headers[index].offset, SEEK_SET);
fread(QDAFile, 1, headers[index].size, f);
fclose(f);
PHL_RGB palette[20][18];
uint16_t w, h;
//Read data from header
memcpy(&w, &QDAFile[18], 2);
memcpy(&h, &QDAFile[22], 2);
surf = PHL_NewSurface(w * 2, h * 2);
//surf = PHL_NewSurface(200, 200);
//Load Palette
int dx, dy;
int count = 0;
for (dx = 0; dx < 20; dx++) {
for (dy = 0; dy < 16; dy++) {
palette[dx][dy].b = QDAFile[54 + count];
palette[dx][dy].g = QDAFile[54 + count + 1];
palette[dx][dy].r = QDAFile[54 + count + 2];
count += 4;
}
}
for (dx = 0; dx < w; dx++) {
for (dy = 0; dy < h; dy++) {
int pix = dx + w * dy;
int px = QDAFile[1078 + pix] / 16;
int py = QDAFile[1078 + pix] % 16;
//Get transparency from first palette color
if (dx == 0 && dy == 0) {
//Darkness special case
if (index == 27) {
SDL_SetColorKey(surf, SDL_SRCCOLORKEY, SDL_MapRGB(surf->format, 0x00, 0x00, 0x00));
}else{
SDL_SetColorKey(surf, SDL_SRCCOLORKEY, SDL_MapRGB(surf->format, palette[0][0].r, palette[0][0].g, palette[0][0].b));
}
}
PHL_RGB c = palette[px][py];
//PHL_DrawRect(dx * 2, dy * 2, 2, 2, c);
SDL_Rect rect = {dx * 2, (h-1-dy) * 2, 2, 2};
SDL_FillRect(surf, &rect, SDL_MapRGB(surf->format, c.r, c.g, c.b));
}
}
free(QDAFile);
}
return surf;
}
void PHL_DrawRect(int x, int y, int w, int h, SDL_Color col)
{
SDL_Rect rect = {x, y, w, h};
SDL_FillRect(drawbuffer, &rect, SDL_MapRGB(drawbuffer->format, col.r, col.g, col.b));
}
void PHL_DrawSurface(double x, double y, PHL_Surface surface)
{
if (quakeTimer > 0) {
int val = quakeTimer % 4;
if (val == 0) {
y -= 1;
} else if (val == 2) {
y += 1;
}
}
SDL_Rect offset;
offset.x = x;
offset.y = y;
SDL_BlitSurface(surface, NULL, drawbuffer, &offset);
}
void PHL_DrawSurfacePart(double x, double y, int cropx, int cropy, int cropw, int croph, PHL_Surface surface)
{
if (quakeTimer > 0) {
int val = quakeTimer % 4;
if (val == 0) {
y -= 1;
}else if (val == 2) {
y += 1;
}
}
SDL_Rect crop, offset;
crop.x = cropx;
crop.y = cropy;
crop.w = cropw;
crop.h = croph;
offset.x = x;
offset.y = y;
SDL_BlitSurface(surface, &crop, drawbuffer, &offset);
}
void PHL_DrawBackground(PHL_Background back, PHL_Background fore)
{
PHL_DrawSurface(0, 0, backbuffer);
}
void PHL_UpdateBackground(PHL_Background back, PHL_Background fore)
{
PHL_SetDrawbuffer(backbuffer);
int xx, yy;
for (yy = 0; yy < 12; yy++)
{
for (xx = 0; xx < 16; xx++)
{
//Draw Background tiles
PHL_DrawSurfacePart(xx * 40, yy * 40, back.tileX[xx][yy] * 40, back.tileY[xx][yy] * 40, 40, 40, images[imgTiles]);
//Only draw foreground tile if not a blank tile
if (fore.tileX[xx][yy] != 0 || fore.tileY[xx][yy] != 0) {
PHL_DrawSurfacePart(xx * 40, yy * 40, fore.tileX[xx][yy] * 40, fore.tileY[xx][yy] * 40, 40, 40, images[imgTiles]);
}
}
}
PHL_ResetDrawbuffer();
}
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