mirror of
https://github.com/astromaddie/HaloCE-VR.git
synced 2026-10-20 00:00:14 +02:00
165 lines
4.3 KiB
C
165 lines
4.3 KiB
C
/*
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HUD_DRAW.H
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Narrow cross-translation-unit interface owned by HUD_DRAW.C.
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*/
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#ifndef __HUD_DRAW_H
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#define __HUD_DRAW_H
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#pragma once
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#include "math/integer_math.h"
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#include "math/real_math.h"
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/* ---------- constants */
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enum
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{
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STACK_BUFFER_LENGTH = 0x80,
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STACK_BUFFER_FILL = 0x62626262,
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};
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enum hud_draw_flags
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{
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_hud_draw_flashing_bit = 0,
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_hud_draw_disabled_bit,
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_hud_draw_in_multiplayer_bit,
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NUMBER_OF_HUD_DRAW_FLAGS
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};
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/* ---------- macros */
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/* The stack sentinel: a guarded function starts with
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long return_eip = get_return_eip();
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long stack_buffer[STACK_BUFFER_LENGTH];
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csmemset(stack_buffer, 0x62, sizeof(stack_buffer));
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and ends with this check of both its return address and its fill pattern. */
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#define match_assert_stack_frame(file, line) \
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{ \
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short corrupt_index = check_stack_buffer(stack_buffer); \
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match_vassert(file, line, return_eip==get_return_eip(), "corrupt return address!"); \
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match_vassert(file, line, corrupt_index==NONE, csprintf(temporary, "corrupt stack at %d!", corrupt_index)); \
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}
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/* ---------- structures */
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struct bitmap_data;
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struct hud_absolute_placement_definition;
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struct hud_color_definition;
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struct hud_placement_definition;
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struct meter_hud_element_definition;
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struct number_hud_element_definition;
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struct tag_block;
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struct static_hud_element_definition;
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struct weapon_hud_overlay_definition;
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/* ---------- prototypes/HUD_DRAW.C */
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long get_return_eip(
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void);
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real hud_globals_get_scale(
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boolean in_multiplayer);
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void hud_retrieve_bitmap_and_bounding_rect(
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long bitmap_group_index,
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short sequence_index,
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short frame_index,
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struct bitmap_data const **bitmap,
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real_rectangle2d const **clip);
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long fast_ftol_C(
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real x);
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pixel32 real_alpha_intensity_to_pixel32(
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real alpha,
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real intensity);
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void hud_calculate_point(
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short local_player_index,
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struct hud_absolute_placement_definition const *absolute_placement,
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struct hud_placement_definition const *placement,
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struct bitmap_data const *bitmap_data,
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boolean in_multiplayer,
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real override_scale,
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point2d *result);
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boolean hud_multitexture_overlays_follow_zoom(
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struct tag_block const *multitexture_overlays);
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boolean hud_number_shows_only_when_zoomed(
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struct number_hud_element_definition const *number);
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void hud_zoomed_layout_begin(
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rectangle2d *saved_window_bounds);
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void hud_zoomed_layout_end(
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rectangle2d const *saved_window_bounds);
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long get_flash_duration(
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struct hud_color_definition const *hud_color);
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pixel32 get_flash_color(
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struct hud_color_definition const *hud_color,
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long reference_value);
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void hud_draw_weapon_overlays(
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short local_player_index,
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struct hud_absolute_placement_definition const *absolute_placement,
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struct weapon_hud_overlay_definition const *overlays,
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long type_flags,
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long reference_time,
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short draw_flags,
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boolean in_multiplayer);
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void hud_draw_bitmap(
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struct bitmap_data const *bitmap,
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struct hud_absolute_placement_definition const *absolute_placement,
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struct hud_placement_definition const *placement,
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real_rectangle2d const *clip,
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real scale,
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real theta,
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pixel32 color,
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boolean in_multiplayer,
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boolean is_interface_bitmap,
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boolean is_crosshair_bitmap);
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void hud_draw_meter(
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short local_player_index,
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struct hud_absolute_placement_definition const *placement,
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struct meter_hud_element_definition const *meter,
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byte min_value,
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byte max_value,
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short draw_flags,
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real reference_time,
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real reference_value);
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void hud_draw_static_element(
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short local_player_index,
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struct hud_absolute_placement_definition const *placement,
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struct static_hud_element_definition const *static_element,
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short draw_flags,
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long flash_reference_time);
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void hud_draw_bitmap_direct(
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struct bitmap_data const *bitmap,
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short placement,
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point2d const *point,
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real_rectangle2d const *clip,
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real scale,
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real theta,
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pixel32 color,
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boolean is_interface_bitmap);
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void hud_draw_numbers(
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short local_player_index,
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struct hud_absolute_placement_definition const *absolute_placement,
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struct number_hud_element_definition const *numbers,
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short value,
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short decimal_value,
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short draw_flags,
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long flash_reference_time,
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real override_scale);
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/* ---------- public code */
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__inline short check_stack_buffer(
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long *buffer)
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{
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short index;
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for (index = STACK_BUFFER_LENGTH-1; index>=0; index--)
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{
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if (buffer[index]!=STACK_BUFFER_FILL)
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return index;
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}
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return NONE;
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}
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#endif /* __HUD_DRAW_H */
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