46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
#ifndef GRAPHIC_UTILS_H
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#define GRAPHIC_UTILS_H
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/* This file contains general utils and wrappers that relate to
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* graphics/video/vram and generally displaying things on the screen.
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* Mostly wrappers and defines for using tonc.
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*/
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/* Reminder:
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* Screen Base Block is the base for the screenblock entries i.e. tilemap
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* Character Base Block is the base for the tiles themselves
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*/
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#define MAIN_BG_SBB 31
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#define MAIN_BG_CBB 1
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#define TTE_SBB 30
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#define TTE_CBB 0
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#define AFFINE_BG_SBB 2
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#define AFFINE_BG_CBB 2
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/* A 1024 size screenblock is arranged in a grid of 32x32 block entries
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* Interestingly since each block is 8x8 pixels, the 240x160 GBA screen
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* is smaller than the screenblock, only the top left part of the screenblock
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* is displayed on the screen.
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*/
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#define SCREENBLOCK_ROW_LEN 32
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typedef struct
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{
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int left;
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int top;
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int right;
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int bottom;
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} Rect;
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#define UNDEFINED -1
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/* Clears a rect in the main background screenblock.
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* The rect needs to be in screenblocks
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*/
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void main_bg_se_clear_rect(Rect rect);
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// A wrapper for tte_erase_rect that would use the rect struct
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void tte_erase_rect_wrapper(Rect rect);
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#endif //GRAPHIC_UTILS_H
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