mirrors
/
OpenRCT2
mirror of https://github.com/OpenRCT2/OpenRCT2.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge pull request #209 from duncanspumpkin/viewport_render 

Viewport render
This commit is contained in:
Ted John 2014-07-14 07:30:54 +01:00
parent 5b02dd09a7 87fe239ac0
commit 830f881f3c
2 changed files with 70 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
src/viewport.c
View File

@ -29,6 +29,8 @@
#define RCT2_LAST_VIEWPORT (RCT2_GLOBAL(RCT2_ADDRESS_NEW_VIEWPORT_PTR, rct_viewport*) - 1)
#define RCT2_NEW_VIEWPORT (RCT2_GLOBAL(RCT2_ADDRESS_NEW_VIEWPORT_PTR, rct_viewport*))
rct_viewport* g_viewport_list = RCT2_ADDRESS(RCT2_ADDRESS_VIEWPORT_LIST, rct_viewport);
/**
*
* rct2: 0x006E6EAC
@ -54,7 +56,7 @@ void viewport_init_all()
// Setting up viewports
for (i = 0; i < 9; i++)
RCT2_FIRST_VIEWPORT[i].width = 0;
g_viewport_list[i].width = 0;
RCT2_NEW_VIEWPORT = NULL;
// ?
@ -90,7 +92,7 @@ void viewport_update_pointers()
rct_viewport *viewport;
rct_viewport **vp = &RCT2_NEW_VIEWPORT;
for (viewport = RCT2_FIRST_VIEWPORT; viewport <= RCT2_NEW_VIEWPORT; viewport++)
for (viewport = g_viewport_list; viewport <= RCT2_NEW_VIEWPORT; viewport++)
if (viewport->width != 0)
*vp++ = viewport;
@ -109,10 +111,72 @@ void viewport_update_position(rct_window *window)
/**
*
* rct2: 0x00685C02
* ax: left
* bx: top
* dx: right
* esi: viewport
* edi: dpi
* ebp: bottom
*/
void viewport_render(rct_drawpixelinfo *dpi, rct_viewport *viewport, int left, int top, int right, int bottom)
{
RCT2_CALLPROC_X(0x00685C02, left , top, 0, right, (int)viewport, (int)dpi, bottom);
if (right <= viewport->x) return;
if (bottom <= viewport->y) return;
if (left >= viewport->x + viewport->width )return;
if (top >= viewport->y + viewport->height )return;
//ax
int x_end = left;
if (left < viewport->x){
x_end = viewport->x;
}
//dx
int x_start = right;
if (right > viewport->x + viewport->width){
x_start = viewport->x + viewport->width;
}
//bx
int y_end = top;
if (top < viewport->y){
y_end = viewport->y;
}
//bp
int y_start = bottom;
if (bottom > viewport->y + viewport->height){
y_start = viewport->y + viewport->height;
}
x_end -= viewport->x;
x_start -= viewport->x;
y_end -= viewport->y;
y_start -= viewport->y;
x_end <<= viewport->zoom;
x_start <<= viewport->zoom;
y_end <<= viewport->zoom;
y_start <<= viewport->zoom;
x_end += viewport->view_x;
x_start += viewport->view_x;
y_end += viewport->view_y;
y_start += viewport->view_y;
//cx
int height = y_start - y_end;
if (height > 384){
//Paint
RCT2_CALLPROC_X(0x00685CBF, x_end, y_end, height, x_start, (int)viewport, (int)dpi, y_end + 384);
y_end += 384;
}
//Paint
RCT2_CALLPROC_X(0x00685CBF, x_end, y_end, height, x_start, (int)viewport, (int)dpi, y_start);
}
/**

3
src/viewport.h
View File

@ -42,6 +42,9 @@ enum {
VIEWPORT_FLAG_15 = (1 << 15)
};
// rct2: 0x014234BC
extern rct_viewport* g_viewport_list;
void viewport_init_all();
void viewport_create(rct_window *w, int x, int y, int width, int height, int ecx, int edx);
void viewport_update_pointers();