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Added sprite zoom function. No freeing yet leaks memory like a sive

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This commit is contained in:
Duncan Frost
2014-05-30 17:28:06 +01:00
parent 81fe1d3494
commit ed31f96c33
1 changed files with 35 additions and 5 deletions
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40
src/gfx.c
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@@ -706,6 +706,35 @@ void gfx_bmp_sprite_to_buffer(uint8* palette_pointer, uint8* unknown_pointer, ui
return;
}
rct_g1_element gfx_sprite_zoom_image(rct_g1_element* source, int zoom_level){
rct_g1_element dest;
uint8* smaller_image;
dest.offset = NULL;
if (zoom_level == 0)return dest;
if (source->flags&G1_FLAG_RLE_COMPRESSION) return dest;
smaller_image = malloc(source->width*source->height);
dest.offset = smaller_image;
uint8* source_pointer = source->offset;
source_pointer += source->y_offset*source->width + source->x_offset;
for (int y = 0; y < source->height; y += zoom_level){
uint8* next_line = source_pointer + source->width*zoom_level;
for (int x = 0; x < source->width; x += zoom_level){
*smaller_image = *source_pointer;
source_pointer += zoom_level;
smaller_image++;
}
source_pointer = next_line;//source->width*zoom_level;
}
dest.x_offset = 0;
dest.y_offset = 0;
dest.width = source->width / zoom_level;
dest.height= source->height/ zoom_level;
dest.flags = source->flags;
return dest;
//remember to free the pointer
}
/*
* rct2: 0x67AA18 transfers readied images onto buffers
* This function copies the sprite data onto the screen
@@ -924,7 +953,8 @@ void gfx_draw_sprite_palette_set(rct_drawpixelinfo *dpi, int image_id, int x, in
int image_type = (image_id & 0xE0000000) >> 28;
rct_g1_element* g1_source = &((rct_g1_element*)RCT2_ADDRESS_G1_ELEMENTS)[image_element];
rct_g1_element zoomed = gfx_sprite_zoom_image(g1_source, dpi->pad_0E);
if (zoomed.offset != NULL)g1_source = &zoomed;
if (dpi->pad_0E >= 1){ //These have not been tested
//something to do with zooming
if (dpi->pad_0E == 1){
@@ -1526,7 +1556,7 @@ add0x682818:
mov0x682853:
eax = edx;
eax += 0x13;
if ( eax <= dpi->y)){
if ( eax <= dpi->y){
//jmp 0x682B63
RCT2_CALLPROC_X(0x00682702, colour, 0, x, y, (int)format, (int)dpi, 0);
return;
@@ -1538,7 +1568,7 @@ mov0x682853:
RCT2_CALLPROC_X(0x00682702, colour, 0, x, y, (int)format, (int)dpi, 0);
return;
}
eax = *(*(uint8)esi);
eax = *((uint8*)esi);
esi++;
if (!eax)return;
if ((uint32)eax < 0x9c){
@@ -1571,10 +1601,10 @@ mov0x682853:
ebx = eax;
ebx += RCT2_GLOBAL(0x13CE950,uint16);
eax = *((uint32*)(ebx+0x141E9e8);
eax = *((uint32*)(ebx+0x141E9e8));
ebx += 0xf15;
RCT2_GLOBAL(0xEDF81C,uint32) = 0x20000000;
gfx_draw_sprite_palette_set(dpi,ebx, ecx, edx, RCT2_GLOBAL(0x9ABDA4, uint8*), RCT2_GLOBAL(0x9E3CDC, uint8*))
gfx_draw_sprite_palette_set(dpi, ebx, ecx, edx, RCT2_GLOBAL(0x9ABDA4, uint8*), RCT2_GLOBAL(0x9E3CDC, uint8*));
//0x68288a
RCT2_CALLPROC_X(0x00682702, colour, 0, x, y, (int)format, (int)dpi, 0);