static void paintown_draw_sprite_ex16( BITMAP * dst, BITMAP * src, int dx, int dy, int mode, int flip );
static void paintown_light16(BITMAP * dst, const int x, const int y, const int width, const int height, const int start_y, const int focus_alpha, const int edge_alpha, const int focus_color, const int edge_color);
static void paintown_applyTrans16(BITMAP * dst, const int color);
const int Bitmap::MaskColor = MASK_COLOR_16;
const int Bitmap::MODE_TRANS = 0;
const int Bitmap::MODE_SOLID = 1;
const int Bitmap::SPRITE_NO_FLIP = 0;
const int Bitmap::SPRITE_V_FLIP = 1;
const int Bitmap::SPRITE_H_FLIP = 2;
const int Bitmap::SPRITE_NORMAL = 1;
const int Bitmap::SPRITE_LIT = 2;
const int Bitmap::SPRITE_TRANS = 3;
Bitmap * Bitmap::Screen = NULL;
Bitmap * Scaler = NULL;
Bitmap * Buffer = NULL;
Bitmap::Bitmap():
own( NULL ),
error( false ){
setBitmap( create_bitmap( 10, 10 ) );
if ( ! getBitmap() ){
error = true;
cerr << "Could not create bitmap!" << endl;
} else {
clear();
own = new int;
*own = 1;
}
}
Bitmap::Bitmap( int x, int y ):
own( NULL ),
error( false ){
if ( x < 1 ){
x = 1;
}
if ( y < 1 ){
y = 1;
}
setBitmap( create_bitmap( x, y ) );
if ( ! getBitmap() ){
error = true;
cerr << "Could not create bitmap!" << endl;
} else {
clear();
own = new int;
*own = 1;
}
}
/* If a BITMAP is given to us, we didn't make it so we don't own it */
void Bitmap::Stretch( const Bitmap & where, const int sourceX, const int sourceY, const int sourceWidth, const int sourceHeight, const int destX, const int destY, const int destWidth, const int destHeight ) const {
/* defined at allegro/include/internal/aintern.h:466 */
extern EXTERNAL_VARIABLE int _blender_col_16;
/* defined at allegro/include/internal/aintern.h:470 */
extern EXTERNAL_VARIABLE int _blender_alpha;
static void paintown_draw_sprite_ex16( BITMAP * dst, BITMAP * src, int dx, int dy, int mode, int flip ){
int x, y, w, h;
int x_dir = 1, y_dir = 1;
int dxbeg, dybeg;
int sxbeg, sybeg;
PAINTOWN_DLS_BLENDER lit_blender;
PAINTOWN_DTS_BLENDER trans_blender;
ASSERT(dst);
ASSERT(src);
if ( flip & Bitmap::SPRITE_V_FLIP ){
y_dir = -1;
}
if ( flip & Bitmap::SPRITE_H_FLIP ){
x_dir = -1;
}
if (dst->clip) {
int tmp;
tmp = dst->cl - dx;
sxbeg = ((tmp < 0) ? 0 : tmp);
dxbeg = sxbeg + dx;
tmp = dst->cr - dx;
w = ((tmp > src->w) ? src->w : tmp) - sxbeg;
if (w <= 0)
return;
if ( flip & Bitmap::SPRITE_H_FLIP ){
/* use backward drawing onto dst */
sxbeg = src->w - (sxbeg + w);
dxbeg += w - 1;
}
tmp = dst->ct - dy;
sybeg = ((tmp < 0) ? 0 : tmp);
dybeg = sybeg + dy;
tmp = dst->cb - dy;
h = ((tmp > src->h) ? src->h : tmp) - sybeg;
if (h <= 0)
return;
if ( flip & Bitmap::SPRITE_V_FLIP ){
/* use backward drawing onto dst */
sybeg = src->h - (sybeg + h);
dybeg += h - 1;
}
} else {
w = src->w;
h = src->h;
sxbeg = 0;
sybeg = 0;
dxbeg = dx;
if ( flip & Bitmap::SPRITE_H_FLIP ){
dxbeg = dx + w - 1;
}
dybeg = dy;
if ( flip & Bitmap::SPRITE_V_FLIP ){
dybeg = dy + h - 1;
}
}
lit_blender = PAINTOWN_MAKE_DLS_BLENDER(0);
trans_blender = PAINTOWN_MAKE_DTS_BLENDER();
if (dst->id & (BMP_ID_VIDEO | BMP_ID_SYSTEM)) {
bmp_select(dst);
switch (mode){
case Bitmap::SPRITE_NORMAL : {
for (y = 0; y < h; y++) {
PAINTOWN_PIXEL_PTR s = PAINTOWN_OFFSET_PIXEL_PTR(src->line[sybeg + y], sxbeg);
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, dybeg + y * y_dir), dxbeg);
for (x = w - 1; x >= 0; PAINTOWN_INC_PIXEL_PTR(s), PAINTOWN_INC_PIXEL_PTR_EX(d,x_dir), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(s);
if (!PAINTOWN_IS_SPRITE_MASK(src, c)) {
PAINTOWN_PUT_PIXEL(d, c);
}
}
}
break;
}
case Bitmap::SPRITE_LIT : {
for (y = 0; y < h; y++) {
PAINTOWN_PIXEL_PTR s = PAINTOWN_OFFSET_PIXEL_PTR(src->line[sybeg + y], sxbeg);
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, dybeg + y * y_dir), dxbeg);
for (x = w - 1; x >= 0; PAINTOWN_INC_PIXEL_PTR(s), PAINTOWN_INC_PIXEL_PTR_EX(d,x_dir), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(s);
if (!PAINTOWN_IS_SPRITE_MASK(src, c)) {
c = PAINTOWN_DLSX_BLEND(lit_blender, c);
PAINTOWN_PUT_PIXEL(d, c);
}
}
}
break;
}
case Bitmap::SPRITE_TRANS : {
for (y = 0; y < h; y++) {
PAINTOWN_PIXEL_PTR s = PAINTOWN_OFFSET_PIXEL_PTR(src->line[sybeg + y], sxbeg);
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, dybeg + y * y_dir), dxbeg);
for (x = w - 1; x >= 0; PAINTOWN_INC_PIXEL_PTR(s), PAINTOWN_INC_PIXEL_PTR_EX(d,x_dir), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(s);
if (!PAINTOWN_IS_SPRITE_MASK(src, c)) {
c = PAINTOWN_DTS_BLEND(trans_blender, PAINTOWN_GET_PIXEL(d), c);
PAINTOWN_PUT_PIXEL(d, c);
}
}
}
break;
}
}
#if 0
for (y = 0; y < h; y++) {
PAINTOWN_PIXEL_PTR s = PAINTOWN_OFFSET_PIXEL_PTR(src->line[sybeg + y], sxbeg);
/* flipped if y_dir is -1 */
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, dybeg + y * y_dir), dxbeg);
/* d is incremented by x_dir, -1 if flipped */
for (x = w - 1; x >= 0; PAINTOWN_INC_PIXEL_PTR(s), PAINTOWN_INC_PIXEL_PTR_EX(d,x_dir), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(s);
if (!PAINTOWN_IS_SPRITE_MASK(src, c)) {
switch( mode ){
case Bitmap::SPRITE_NORMAL : break;
case Bitmap::SPRITE_LIT : {
c = PAINTOWN_DLSX_BLEND(lit_blender, c);
break;
case Bitmap::SPRITE_TRANS : {
c = PAINTOWN_DTS_BLEND(trans_blender, PAINTOWN_GET_PIXEL(d), c);
break;
}
}
}
PAINTOWN_PUT_PIXEL(d, c);
}
}
}
#endif
bmp_unwrite_line(dst);
}
else {
switch (mode){
case Bitmap::SPRITE_NORMAL : {
for (y = 0; y < h; y++) {
PAINTOWN_PIXEL_PTR s = PAINTOWN_OFFSET_PIXEL_PTR(src->line[sybeg + y], sxbeg);
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, dybeg + y * y_dir), dxbeg);
for (x = w - 1; x >= 0; PAINTOWN_INC_PIXEL_PTR(s), PAINTOWN_INC_PIXEL_PTR_EX(d,x_dir), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(s);
if (!PAINTOWN_IS_SPRITE_MASK(src, c)) {
PAINTOWN_PUT_MEMORY_PIXEL(d, c);
}
}
}
break;
}
case Bitmap::SPRITE_LIT : {
for (y = 0; y < h; y++) {
PAINTOWN_PIXEL_PTR s = PAINTOWN_OFFSET_PIXEL_PTR(src->line[sybeg + y], sxbeg);
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, dybeg + y * y_dir), dxbeg);
for (x = w - 1; x >= 0; PAINTOWN_INC_PIXEL_PTR(s), PAINTOWN_INC_PIXEL_PTR_EX(d,x_dir), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(s);
if (!PAINTOWN_IS_SPRITE_MASK(src, c)) {
c = PAINTOWN_DLSX_BLEND(lit_blender, c);
PAINTOWN_PUT_MEMORY_PIXEL(d, c);
}
}
}
break;
}
case Bitmap::SPRITE_TRANS : {
for (y = 0; y < h; y++) {
PAINTOWN_PIXEL_PTR s = PAINTOWN_OFFSET_PIXEL_PTR(src->line[sybeg + y], sxbeg);
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, dybeg + y * y_dir), dxbeg);
for (x = w - 1; x >= 0; PAINTOWN_INC_PIXEL_PTR(s), PAINTOWN_INC_PIXEL_PTR_EX(d,x_dir), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(s);
if (!PAINTOWN_IS_SPRITE_MASK(src, c)) {
c = PAINTOWN_DTS_BLEND(trans_blender, PAINTOWN_GET_PIXEL(d), c);
PAINTOWN_PUT_MEMORY_PIXEL(d, c);
}
}
}
break;
}
}
#if 0
for (y = 0; y < h; y++) {
PAINTOWN_PIXEL_PTR s = PAINTOWN_OFFSET_PIXEL_PTR(src->line[sybeg + y], sxbeg);
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, dybeg + y * y_dir), dxbeg);
for (x = w - 1; x >= 0; PAINTOWN_INC_PIXEL_PTR(s), PAINTOWN_INC_PIXEL_PTR_EX(d,x_dir), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(s);
if (!PAINTOWN_IS_SPRITE_MASK(src, c)) {
switch( mode ){
case Bitmap::SPRITE_NORMAL : break;
case Bitmap::SPRITE_LIT : {
c = PAINTOWN_DLSX_BLEND(lit_blender, c);
break;
case Bitmap::SPRITE_TRANS : {
c = PAINTOWN_DTS_BLEND(trans_blender, PAINTOWN_GET_PIXEL(d), c);
break;
}
}
}
PAINTOWN_PUT_MEMORY_PIXEL(d, c);
}
}
}
#endif
}
}
/* mix pixels with the given color in with each non-masking pixel in dst */
static void paintown_applyTrans16(BITMAP * dst, const int color){
int y1 = 0;
int y2 = dst->h;
int x1 = 0;
int x2 = dst->w - 1;
if (dst->clip){
y1 = dst->ct;
- y2 = dst->cb;
+ y2 = dst->cb - 1;
x1 = dst->cl;
- x2 = dst->cr;
+ x2 = dst->cr - 1;
}
PAINTOWN_DTS_BLENDER trans_blender;
trans_blender = PAINTOWN_MAKE_DTS_BLENDER();
if (dst->id & (BMP_ID_VIDEO | BMP_ID_SYSTEM)) {
} else {
for (int y = y1; y < y2; y++) {
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, y), x1);
for (int x = x2; x >= x1; PAINTOWN_INC_PIXEL_PTR_EX(d,1), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(d);
if (!PAINTOWN_IS_SPRITE_MASK(dst, c)) {
c = PAINTOWN_DTS_BLEND(trans_blender, color, c);
PAINTOWN_PUT_MEMORY_PIXEL(d, c);
}
}
}
}
}
/* ultra special-case for drawing a light (like from a lamp).
* center of light is x,y and shines in a perfect isosolese triangle.
*/
static void paintown_light16(BITMAP * dst, const int x, const int y, const int width, const int height, const int start_y, const int focus_alpha, const int edge_alpha, const int focus_color, const int edge_color){
int dxbeg = x - width;
int x_dir = 1;
unsigned char * alphas = new unsigned char[width];