graphics.h

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#ifndef GRAPHICS_H
#define GRAPHICS_H
 
#define GRAPHICS_ERROR_NOT_FOUND -1
 
#define GRAPHICS_INSTANCE_NONE      -1
#define GRAPHICS_INSTANCE_WINDOW    -2
#define GRAPHICS_INSTANCE_TILEMAP   -3
 
#define GRAPHICS_STRING_FLAG_1X 0x01
 
#define GRAPHICS_STRING_FLAG_ALL_CAPS 0x10
 
#define GRAPHICS_STRING_FLAG_FONT_SCRIPT  0x20
 
#define GRAPHICS_STRING_FLAG_OUTLINE      0x80
 
#define GRAPHICS_FLAG_SHAKING_MASK 0x03
#define GRAPHICS_FLAG_ZOOM_MASK 0x0c
 
#ifndef GRAPHICS_TXP_R
#define GRAPHICS_TXP_R 0xff
#endif /* !GRAPHICS_TXP_R */
 
#ifndef GRAPHICS_TXP_G
#define GRAPHICS_TXP_G 0x55
#endif /* !GRAPHICS_TXP_G */
 
#ifndef GRAPHICS_TXP_B
#define GRAPHICS_TXP_B 0xff
#endif /* !GRAPHICS_TXP_B */
 
#define graphics_char_is_printable( c ) (('a' <= c && 'z' >= c) || ('A' <= c && 'Z' >= c) || ('0' <= c && '9' >= c) || '.' == c || ',' == c || ':' == c || ';' == c || '!' == c || '/' == c || ' ' == c)
 
#define graphics_draw_char_outline( x, y, flags ) if( GRAPHICS_STRING_FLAG_OUTLINE == (GRAPHICS_STRING_FLAG_OUTLINE & flags) ) { graphics_draw_px( x, y, GRAPHICS_COLOR_BLACK ); }
 
#define graphics_set_screen_shake( shake ) g_screen_flags &= ~GRAPHICS_FLAG_SHAKING_MASK; g_screen_flags |= (GRAPHICS_FLAG_SHAKING_MASK & shake);
 
#define graphics_set_screen_zoom( zoom ) g_screen_flags &= ~GRAPHICS_FLAG_ZOOM_MASK; g_screen_flags |= (((zoom) << 2) & GRAPHICS_FLAG_ZOOM_MASK)
 
#ifndef graphics_clear_screen
#define graphics_clear_screen() \
   graphics_draw_block( 0, 0, SCREEN_W, SCREEN_H, GRAPHICS_COLOR_BLACK );
#endif /* !graphics_clear_screen */
 
#ifndef graphics_clear_block
#define graphics_clear_block( x, y, w, h ) \
   graphics_draw_block( x, y, w, h, GRAPHICS_COLOR_BLACK );
#endif /* !graphics_clear_screen */
 
struct GRAPHICS_RECT {
   int16_t x;
   int16_t y;
   int16_t w;
   int16_t h;
};
 
#define GRAPHICS_BMP_FLAG_TYPE_TILE    0x0004
#define GRAPHICS_BMP_FLAG_TYPE_SPRITE  0x0002
#define GRAPHICS_BMP_FLAG_TYPE_MASK    0x0006
#define GRAPHICS_BMP_FLAG_INIT         0x0001
 /* unilayer_graphics_bmp_flags */
 
struct GRAPHICS_BITMAP_BASE {
   RESOURCE_ID id;
   uint16_t flags;
   uint16_t ref_count;
 
   MEMORY_PTR ptr1;
   MEMORY_PTR ptr2;
   uint32_t res1;
   uint32_t res2;
   uint8_t res3;
   uint8_t res4;
};
 
int16_t graphics_init() SECTION_SETUP;
 
void graphics_shutdown() SECTION_SETUP;
 
void graphics_lock();
 
void graphics_release();
 
uint32_t graphics_get_ms();
 
void graphics_loop_start();
 
void graphics_loop_end();
 
void graphics_draw_px( uint16_t x, uint16_t y, const GRAPHICS_COLOR color );
 
void graphics_draw_block(
   uint16_t x_orig, uint16_t y_orig, uint16_t w, uint16_t h,
   const GRAPHICS_COLOR color );
 
void graphics_draw_rect(
   uint16_t x_orig, uint16_t y_orig, uint16_t w, uint16_t h,
   uint16_t thickness, const GRAPHICS_COLOR color );
 
void graphics_draw_line(
   uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t thickness,
   const GRAPHICS_COLOR color );
 
void graphics_char_at(
   char c, uint16_t x_orig, uint16_t y_orig, GRAPHICS_COLOR color,
   uint8_t flags );
 
void graphics_string_at(
   const char* str, uint16_t str_sz, uint16_t x_orig, uint16_t y_orig,
   GRAPHICS_COLOR color, uint8_t flags );
 
void graphics_string_sz(
   const char* str, uint16_t str_sz, uint8_t flags, struct GRAPHICS_RECT* sz_out
);
 
int16_t graphics_cache_blit_at(
   uint16_t bitmap_idx, int16_t instance_id,
   uint16_t s_x, uint16_t s_y, uint16_t d_x, uint16_t d_y,
   uint16_t w, uint16_t h );
 
void graphics_clear_cache() SECTION_SETUP;
 
int16_t graphics_cache_load_bitmap( RESOURCE_ID id, uint8_t type_flag );
 /* unilayer_graphics_cache */
 
int16_t graphics_get_random( int16_t start, int16_t range );
 
void graphics_on_resize( int16_t new_w, int16_t new_h );
 
#if defined( GRAPHICS_C ) || defined( GRAPHICS_PLATFORM_C )
 
/* Internal prototypes for abstract routines to access platform-specific
 * implementation features.
 */
 
int16_t graphics_platform_load_bitmap(
   RESOURCE_HANDLE res_handle, struct GRAPHICS_BITMAP* b ) SECTION_SETUP;
 
int16_t graphics_platform_unload_bitmap(
   struct GRAPHICS_BITMAP* b ) SECTION_SETUP;
 
int16_t graphics_platform_blit_partial_at(
   const struct GRAPHICS_BITMAP*, int16_t,
   uint16_t, uint16_t, uint16_t, uint16_t, uint16_t, uint16_t );
 
int16_t graphics_platform_init() SECTION_SETUP;
void graphics_platform_shutdown() SECTION_SETUP;
 
#endif /* GRAPHICS_C || GRAPHICS_PLATFORM_C */
 
#ifdef GRAPHICS_C
 
uint16_t g_screen_real_w = 0;
uint16_t g_screen_real_h = 0;
uint8_t g_screen_flags = 0;
 
#else
 
extern uint16_t g_screen_real_w;
extern uint16_t g_screen_real_h;
extern uint8_t g_screen_flags;
 
#endif /* GRAPHICS_C */
 
#endif /* GRAPHICS_H */