libdgl/DGLBLIT.H
Gered 62af8575c6 various updates i've left uncommitted for many months
- rename standard integer types to a more familiar (u)int(8/16/32)
- many function/struct renames. i don't _really_ know if what i've done
  for this is better, but it "feels" better to me. many draw/blit
  function names are shorter which is nice, at least. kinda important
  to me because i develop this on a real DOS machine in 80x50 text mode.
- add 'extern "C"' blocks to headers for C++ compiler usage
- draw/pixel color value arguments for functions should all have been
  changed to be uint8 instead of a full 32-bit int. feels right, but
  maybe should've left alone...
- small fix to keyboard handler. noticed a problem on one thinkpad
  laptop. was a result of what i think was a typo in a constant value
  used during the part of the interrupt handler that tells the keyboard
  controller the key event was processed
- fix uncommon potential crash function return in draw_filled_rect
- renamed low-level "direct" assembly functions to "lowlevel_xxx" to
  be a little bit more explicit about what they are
- add some convenience event helper functions for determining event
  types
- add fixed point atan2
- fixed some tabs/spaces inconsistences (should all be spaces now?)
- maybe some other minor things i've forgotten
2020-07-19 19:24:48 -04:00

164 lines
3.2 KiB
C
Executable file

#ifndef LIBDGL_DGLBLIT_H
#define LIBDGL_DGLBLIT_H
#include "dglgfx.h"
#ifdef __cplusplus
extern "C" {
#endif
void blit_region(
const SURFACE *src,
SURFACE *dest,
int src_x,
int src_y,
int src_width,
int src_height,
int dest_x,
int dest_y
);
void blit_region_f(
const SURFACE *src,
SURFACE *dest,
int src_x,
int src_y,
int src_width,
int src_height,
int dest_x,
int dest_y
);
void blit_sprite_region(
const SURFACE *src,
SURFACE *dest,
int src_x,
int src_y,
int src_width,
int src_height,
int dest_x,
int dest_y
);
void blit_sprite_region_f(
const SURFACE *src,
SURFACE *dest,
int src_x,
int src_y,
int src_width,
int src_height,
int dest_x,
int dest_y
);
// --------------------------------------------------------------------------
void lowlevel_blit_4(
int width4,
int lines,
uint8 *dest,
const uint8 *src,
int dest_y_inc,
int src_y_inc
);
void lowlevel_blit_4r(
int width4,
int lines,
int remainder,
uint8 *dest,
const uint8 *src,
int dest_y_inc,
int src_y_inc
);
void lowlevel_blit_r(
int width,
int lines,
uint8 *dest,
const uint8 *src,
int dest_y_inc,
int src_y_inc
);
void lowlevel_blit_sprite_4(
int width4,
int lines,
uint8 *dest,
const uint8 *src,
int dest_y_inc,
int src_y_inc
);
void lowlevel_blit_sprite_4r(
int width4,
int lines,
uint8 *dest,
const uint8 *src,
int remainder,
int dest_y_inc,
int src_y_inc
);
void lowlevel_blit_sprite_r(
int width,
int lines,
uint8 *dest,
const uint8 *src,
int dest_y_inc,
int src_y_inc
);
void lowlevel_blit_sprite_8(
int width8,
int lines,
uint8 *dest,
const uint8 *src,
int dest_y_inc,
int src_y_inc
);
void lowlevel_blit_sprite_8r(
int width8,
int lines,
uint8 *dest,
const uint8 *src,
int remainder,
int dest_y_inc,
int src_y_inc
);
// --------------------------------------------------------------------------
static void blit(const SURFACE *src, SURFACE *dest, int x, int y);
static void blit_f(const SURFACE *src, SURFACE *dest, int x, int y);
static void blit_sprite(const SURFACE *src, SURFACE *dest, int x, int y);
static void blit_sprite_f(const SURFACE *src, SURFACE *dest, int x, int y);
// --------------------------------------------------------------------------
static void blit(const SURFACE *src, SURFACE *dest, int x, int y) {
blit_region(src, dest, 0, 0, src->width, src->height, x, y);
}
static void blit_f(const SURFACE *src, SURFACE *dest, int x, int y) {
blit_region_f(src, dest, 0, 0, src->width, src->height, x, y);
}
static void blit_sprite(const SURFACE *src, SURFACE *dest, int x, int y) {
blit_sprite_region(src, dest, 0, 0, src->width, src->height, x, y);
}
static void blit_sprite_f(const SURFACE *src, SURFACE *dest, int x, int y) {
blit_sprite_region_f(src, dest, 0, 0, src->width, src->height, x, y);
}
#ifdef __cplusplus
}
#endif
#endif