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Started to turn the buffer code into legable C

This commit is contained in:
Duncan Frost 2014-05-24 10:53:34 +01:00
parent 0b20f94182
commit 20d136bacf
1 changed files with 7 additions and 13 deletions
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20
src/gfx.c
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@ -462,22 +462,17 @@ void gfx_bmp_sprite_to_buffer(char* palette_pointer, char* source_pointer, char*
//Has a background image?
if (image_type & IMAGE_TYPE_USE_PALETTE){
int _ecx = end_y;
uint32 _ebx = (uint32)palette_pointer;
_ecx--;
_ecx <<= 0x10;
//Mix with background image and colour adjusted
if (RCT2_GLOBAL(0x9E3CDC, uint32)){ //Not tested
RCT2_GLOBAL(0x9E3D04, uint32) = ebp;
uint32 _ebp = RCT2_GLOBAL(0x9E3CDC, uint32);
_ebp += RCT2_GLOBAL(0x9E3CE0, uint32);
for (_ecx >>= 0x10; _ecx >= 0; --_ecx){
for (; end_y > 0; --end_y){
for (int _cx = end_x; _cx > 0; --_cx){
uint8 al = *source_pointer;
source_pointer++;
al = *((char*)_ebx + al);
al = palette_pointer[al];
al &= *((char*)_ebp);
if (al){
*dest_pointer = al;
@ -497,10 +492,10 @@ void gfx_bmp_sprite_to_buffer(char* palette_pointer, char* source_pointer, char*
ebp += 4;
edx += 4;
for (_ecx >>= 0x10; _ecx >= 0; --_ecx){
for (; end_y > 0; --end_y){
for (int i = 0; i < 4; ++i){
uint8 al = *(source_pointer + i);
al = *((char*)_ebx + al);
al = palette_pointer[al];
if (al){
*(dest_pointer + i) = al;
}
@ -512,11 +507,11 @@ void gfx_bmp_sprite_to_buffer(char* palette_pointer, char* source_pointer, char*
}
//image colour adjusted?
for (_ecx >>= 0x10; _ecx >= 0; --_ecx){
for (; end_y > 0; --end_y){
for (int _cx = end_x; _cx > 0; --_cx){
uint8 al = *source_pointer;
source_pointer++;
al = *((char*)_ebx + al);
al = palette_pointer[al];
if (al){
*dest_pointer = al;
}
@ -788,7 +783,7 @@ void gfx_draw_sprite(rct_drawpixelinfo *dpi, int image_id, int x, int y)
if (image_type && !(image_type & IMAGE_TYPE_UNKNOWN)) {
if (!(image_type & (1 << 2))){
if (!(image_type & IMAGE_TYPE_MIX_BACKGROUND)){
eax = image_id;
eax >>= 19;
eax &= 0xFF;
@ -996,7 +991,6 @@ void gfx_draw_sprite(rct_drawpixelinfo *dpi, int image_id, int x, int y)
ebp = RCT2_GLOBAL(RCT2_DPI_LINE_LENGTH_GLOBAL, uint16);
ebx = RCT2_GLOBAL(0xEDF81C, uint32);
//ebx, edx, esi, edi, ah, ebp used in 0x67a690 eax=1966, ecx=ff39, edx=ebx=0, esp = cfca4, ebp = 266, esi =368823e, edi = 16c79b2
gfx_bmp_sprite_to_buffer(palette_pointer, (char*)esi, bits_pointer, eax, RCT2_GLOBAL(RCT2_X_END_POINT_GLOBAL, sint16), edx, ebp, image_type);
return;
}