mirror of https://github.com/nmlgc/ReC98.git
24 lines
494 B
C++
24 lines
494 B
C++
#include "platform.h"
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#include "pc98.h"
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#include "planar.h"
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#include "th01/hardware/grpinv32.hpp"
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bool16 graph_invert_32x32_8(screen_x_t left, vram_y_t top, dots8_t far *plane)
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{
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vram_offset_t vram_offset = vram_offset_shift(left, top);
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if(
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(left < 0) ||
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(top < 0) ||
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(left >= (RES_X - 32)) ||
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(top >= (RES_Y - 32))
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) {
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return true;
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}
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for(pixel_t y = 0; y < 32; y++, vram_offset += ROW_SIZE) {
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reinterpret_cast<dots32_t far &>(plane[vram_offset]) ^= -1;
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}
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return false;
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}
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