mirror of https://github.com/nmlgc/ReC98.git
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
#include "defconv.h"
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#if GAME == 5
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# define PI_SLOT_COUNT 8
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#else
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# define PI_SLOT_COUNT 6
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#endif
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#define PI_W RES_X
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#define PI_H RES_Y
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// Global PI file slots.
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extern PiHeader pi_headers[PI_SLOT_COUNT];
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extern void far *pi_buffers[PI_SLOT_COUNT];
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// ≥TH03 free any previously loaded PI in the given slot before loading [fn].
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int DEFCONV pi_load(int slot, const char *fn);
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void DEFCONV pi_palette_apply(int slot);
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#define pi_free(slot) \
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graph_pi_free(&pi_headers[slot], pi_buffers[slot]);
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// Displays the PI image in slot #[slot] at (⌊left/8⌋*8, top). Horizontally,
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// the image is cut off at 640 pixels; vertically, it is wrapped if it exceeds
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// the clipping frame defined via grc_setclip().
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void DEFCONV pi_put_8(screen_x_t left, vram_y_t top, int slot);
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#define pi_load_put_8_free(slot, fn) \
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pi_load(slot, (fn)); \
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pi_palette_apply(slot); \
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pi_put_8(0, 0, slot); \
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pi_free(slot); \
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// .PI row pointer arithmetic
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// --------------------------
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typedef uint8_t far *pi_buffer_p_t;
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#define pi_buffer_p_init(p, slot) \
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p = reinterpret_cast<pi_buffer_p_t>(pi_buffers[slot]);
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#define pi_buffer_p_offset(p, x, y) \
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p += (((y * PI_W) + x) / 2);
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#define pi_buffer_p_normalize(p) \
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p = reinterpret_cast<pi_buffer_p_t>(MK_FP( \
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(seg_t)(reinterpret_cast<uint32_t>(p) >> 16) + (FP_OFF(p) >> 4), \
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(FP_OFF(p) & 0xF) \
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));
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#define pi_buffer_p_next_row(p, slot) \
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pi_buffer_p_offset(p, pi_headers[slot].xsize, 0);
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// --------------------------
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