mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 10:19:47 -04:00
Matthew Stanley
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
#ifdef NDEBUG
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#undef NDEBUG
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#endif
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/* The squash path reveals a fraction of the game's own half-width, so the
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* per-side cull margin follows the display mode: 320 px keeps the historical
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* 160*(1/s-1), a 512 px mode (Army Men in-game) hides 256*(1/s-1) px per side.
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* Ratio-style sites (angles, cones, scaled bounds) read the 320-basis margin and
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* never change with the mode. */
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#include <assert.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include "../src/gpu.c"
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#include "gpu_exec_stubs.inc"
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static void set_mode(int hres, uint32_t x2) {
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hres1 = (uint32_t)hres; hres2 = 0; video_mode = 0;
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h_display_x1 = 0x260; h_display_x2 = x2;
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v_display_y1 = 0x10; v_display_y2 = 0x100;
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}
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int main(void) {
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ws_mode = 1;
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ws_gte_game_mode_cfg = 1; /* game frame: squash is active */
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ws_last_gte_stamp = (uint32_t)s_frame_count;
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ws_cfg_num = 16; ws_cfg_den = 9;
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ws_xnum = 3; ws_xden = 4; /* 16:9 squash */
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set_mode(1, 0xC60); /* 320 wide */
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assert(gpu_h_display_width() == 320);
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assert(psx_ws_x_margin() == 53);
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assert(psx_ws_x_margin_320() == 53);
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set_mode(2, 0xC60); /* 512 wide */
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assert(gpu_h_display_width() == 512);
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assert(psx_ws_x_margin() == 85); /* 256 * (4/3 - 1) */
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assert(psx_ws_x_margin_320() == 53); /* ratio sites unchanged */
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assert(psx_ws_player_x_bound(160) == 160 * (320 + 2 * 53) / 320);
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ws_xnum = 8; ws_xden = 15; /* 2.5:1 */
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assert(psx_ws_x_margin() == 224); /* 256 * (15/8 - 1) */
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assert(psx_ws_x_margin_320() == 140);
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gpu_ws_set_cull_guard_pixels(32);
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assert(psx_ws_x_margin() == 256);
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gpu_ws_set_cull_guard_pixels(0);
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ws_xnum = ws_xden = 1; /* true 4:3 stays identity */
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assert(psx_ws_x_margin() == 0);
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assert(psx_ws_x_margin_320() == 0);
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puts("ws_cull_margin_width_test: ok");
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return 0;
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}
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