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This commit is contained in:
nhmall
2021-01-26 21:06:16 -05:00
parent a2a9cb7b4f
commit f963c5aca7
232 changed files with 12099 additions and 17782 deletions
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sys/msdos/vidvesa.c
+112 -164
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@@ -26,46 +26,43 @@ struct VesaCharacter {
int chr;
};
static unsigned long FDECL(vesa_SetWindow, (int window, unsigned long offset));
static unsigned long FDECL(vesa_ReadPixel32, (unsigned x, unsigned y));
static void FDECL(vesa_WritePixel32, (unsigned x, unsigned y,
unsigned long color));
static void FDECL(vesa_WritePixel, (unsigned x, unsigned y, unsigned color));
static void FDECL(vesa_WritePixelRow, (unsigned long offset,
unsigned char const *p_row, unsigned p_row_size));
static unsigned long FDECL(vesa_MakeColor, (struct Pixel));
static void FDECL(vesa_FillRect, (
unsigned left, unsigned top,
unsigned width, unsigned height,
unsigned color));
static unsigned long vesa_SetWindow(int window, unsigned long offset);
static unsigned long vesa_ReadPixel32(unsigned x, unsigned y);
static void vesa_WritePixel32(unsigned x, unsigned y, unsigned long color);
static void vesa_WritePixel(unsigned x, unsigned y, unsigned color);
static void vesa_WritePixelRow(unsigned long offset,
unsigned char const *p_row, unsigned p_row_size);
static unsigned long vesa_MakeColor(struct Pixel);
static void vesa_FillRect(unsigned left, unsigned top, unsigned width,
unsigned height, unsigned color);
static void NDECL(vesa_redrawmap);
static void FDECL(vesa_cliparound, (int, int));
static void vesa_redrawmap(void);
static void vesa_cliparound(int, int);
#if 0
static void FDECL(decal_packed, (const struct TileImage *tile, unsigned special));
static void decal_packed(const struct TileImage *tile, unsigned special);
#endif
static void FDECL(vesa_SwitchMode, (unsigned mode));
static void NDECL(vesa_SetViewPort);
static boolean FDECL(vesa_SetPalette, (const struct Pixel *));
static boolean FDECL(vesa_SetHardPalette, (const struct Pixel *));
static boolean FDECL(vesa_SetSoftPalette, (const struct Pixel *));
static void FDECL(vesa_DisplayCell, (int, int, int));
static unsigned FDECL(vesa_FindMode, (unsigned long mode_addr, unsigned bits));
static void FDECL(vesa_WriteChar, (int, int, int, int));
static void FDECL(vesa_WriteCharXY, (int, int, int, int));
static void FDECL(vesa_WriteCharTransparent, (int, int, int, int));
static void FDECL(vesa_WriteTextRow, (int pixx, int pixy,
struct VesaCharacter const *t_row, unsigned t_row_width));
static boolean FDECL(vesa_GetCharPixel, (int, unsigned, unsigned));
static unsigned char FDECL(vesa_GetCharPixelRow, (int, unsigned, unsigned));
static unsigned long FDECL(vesa_DoublePixels, (unsigned long));
static unsigned long FDECL(vesa_TriplePixels, (unsigned long));
static void FDECL(vesa_WriteStr, (const char *, int, int, int, int));
static unsigned char __far *NDECL(vesa_FontPtrs);
static void FDECL(vesa_process_tile, (struct TileImage *tile));
static void vesa_SwitchMode(unsigned mode);
static void vesa_SetViewPort(void);
static boolean vesa_SetPalette(const struct Pixel *);
static boolean vesa_SetHardPalette(const struct Pixel *);
static boolean vesa_SetSoftPalette(const struct Pixel *);
static void vesa_DisplayCell(int, int, int);
static unsigned vesa_FindMode(unsigned long mode_addr, unsigned bits);
static void vesa_WriteChar(int, int, int, int);
static void vesa_WriteCharXY(int, int, int, int);
static void vesa_WriteCharTransparent(int, int, int, int);
static void vesa_WriteTextRow(int pixx, int pixy,
struct VesaCharacter const *t_row, unsigned t_row_width);
static boolean vesa_GetCharPixel(int, unsigned, unsigned);
static unsigned char vesa_GetCharPixelRow(int, unsigned, unsigned);
static unsigned long vesa_DoublePixels(unsigned long);
static unsigned long vesa_TriplePixels(unsigned long);
static void vesa_WriteStr(const char *, int, int, int, int);
static unsigned char __far *vesa_FontPtrs(void);
/* static void vesa_process_tile(struct TileImage *tile); */
#ifdef POSITIONBAR
static void NDECL(positionbar);
static void positionbar(void);
#endif
extern int clipx, clipxmax; /* current clipping column from wintty.c */
@@ -193,9 +190,7 @@ static const struct OldModeInfo old_mode_table[] = {
/* Retrieve the mode info block */
static boolean
vesa_GetModeInfo(mode, info)
unsigned mode;
struct ModeInfoBlock *info;
vesa_GetModeInfo(unsigned mode, struct ModeInfoBlock *info)
{
int mode_info_sel = -1; /* custodial */
int mode_info_seg;
@@ -266,9 +261,7 @@ vesa_map_frame_buffer(unsigned phys_addr, unsigned size)
/* Set the memory window and return the offset */
static unsigned long
vesa_SetWindow(window, offset)
int window;
unsigned long offset;
vesa_SetWindow(int window, unsigned long offset)
{
/* If the desired offset is already within the window, leave the window
as it is and return the address based on the current window position.
@@ -311,8 +304,7 @@ unsigned long offset;
}
static unsigned long
vesa_ReadPixel32(x, y)
unsigned x, y;
vesa_ReadPixel32(unsigned x, unsigned y)
{
unsigned long offset = y * vesa_scan_line + x * vesa_pixel_bytes;
unsigned long addr, color;
@@ -383,9 +375,7 @@ unsigned x, y;
}
static void
vesa_WritePixel32(x, y, color)
unsigned x, y;
unsigned long color;
vesa_WritePixel32(unsigned x, unsigned y, unsigned long color)
{
unsigned long offset = y * vesa_scan_line + x * vesa_pixel_bytes;
unsigned long addr;
@@ -451,9 +441,7 @@ unsigned long color;
}
static void
vesa_WritePixel(x, y, color)
unsigned x, y;
unsigned color;
vesa_WritePixel(unsigned x, unsigned y, unsigned color)
{
if (vesa_pixel_size == 8) {
vesa_WritePixel32(x, y, color);
@@ -463,10 +451,8 @@ unsigned color;
}
static void
vesa_WritePixelRow(offset, p_row, p_row_size)
unsigned long offset;
unsigned char const *p_row;
unsigned p_row_size;
vesa_WritePixelRow(unsigned long offset,
unsigned char const *p_row, unsigned p_row_size)
{
if (vesa_segment != 0) {
/* Linear frame buffer in use */
@@ -489,20 +475,19 @@ unsigned p_row_size;
}
static unsigned long
vesa_MakeColor(p)
struct Pixel p;
vesa_MakeColor(struct Pixel p)
{
unsigned long r = p.r >> vesa_red_shift;
unsigned long g = p.g >> vesa_green_shift;
unsigned long gr = p.g >> vesa_green_shift;
unsigned long b = p.b >> vesa_blue_shift;
return (r << vesa_red_pos)
| (g << vesa_green_pos)
| (gr << vesa_green_pos)
| (b << vesa_blue_pos);
}
static void
vesa_FillRect(left, top, width, height, color)
unsigned left, top, width, height, color;
vesa_FillRect(unsigned left, unsigned top, unsigned width,
unsigned height, unsigned color)
{
unsigned p_row_size = width * vesa_pixel_bytes;
unsigned char *p_row = (unsigned char *) alloc(p_row_size);
@@ -545,14 +530,14 @@ unsigned left, top, width, height, color;
}
void
vesa_get_scr_size()
vesa_get_scr_size(void)
{
CO = vesa_x_res / vesa_char_width;
LI = vesa_y_res / vesa_char_height - 1;
}
void
vesa_backsp()
vesa_backsp(void)
{
int col, row;
@@ -565,8 +550,7 @@ vesa_backsp()
}
void
vesa_clear_screen(colour)
int colour;
vesa_clear_screen(int colour)
{
vesa_FillRect(0, 0, vesa_x_res, vesa_y_res, colour);
if (iflags.tile_view)
@@ -576,8 +560,7 @@ int colour;
/* clear to end of line */
void
vesa_cl_end(col, row)
int col, row;
vesa_cl_end(int col, int row)
{
unsigned left = vesa_x_center + col * vesa_char_width;
unsigned top = vesa_y_center + row * vesa_char_height;
@@ -590,8 +573,7 @@ int col, row;
/* clear to end of screen */
void
vesa_cl_eos(cy)
int cy;
vesa_cl_eos(int cy)
{
cl_end();
if (cy < LI - 1) {
@@ -605,15 +587,14 @@ int cy;
}
void
vesa_tty_end_screen()
vesa_tty_end_screen(void)
{
vesa_clear_screen(BACKGROUND_VESA_COLOR);
vesa_SwitchMode(MODETEXT);
}
void
vesa_tty_startup(wid, hgt)
int *wid, *hgt;
vesa_tty_startup(int *wid, int *hgt)
{
/* code to sense display adapter is required here - MJA */
@@ -650,9 +631,7 @@ int *wid, *hgt;
*/
void
vesa_xputs(s, col, row)
const char *s;
int col, row;
vesa_xputs(const char *s, int col, int row)
{
if (s != NULL) {
vesa_WriteStr(s, strlen(s), col, row, g_attribute);
@@ -661,9 +640,7 @@ int col, row;
/* write out character (and attribute) */
void
vesa_xputc(ch, attr)
char ch;
int attr;
vesa_xputc(char ch, int attr)
{
int col, row;
@@ -690,12 +667,9 @@ int attr;
#if defined(USE_TILES)
/* Place tile represent. a glyph at current location */
void
vesa_xputg(glyphnum, ch,
special)
int glyphnum;
int ch;
unsigned special; /* special feature: corpse, invis, detected, pet, ridden -
hack.h */
vesa_xputg(int glyphnum, int ch,
unsigned special) /* special feature: corpse, invis, detected, pet, ridden -
hack.h */
{
int col, row;
int attr;
@@ -747,8 +721,7 @@ unsigned special; /* special feature: corpse, invis, detected, pet, ridden -
*/
void
vesa_gotoloc(col, row)
int col, row;
vesa_gotoloc(int col, int row)
{
curcol = min(col, CO - 1); /* protection from callers */
currow = min(row, LI - 1);
@@ -756,8 +729,7 @@ int col, row;
#if defined(USE_TILES) && defined(CLIPPING)
static void
vesa_cliparound(x, y)
int x, y;
vesa_cliparound(int x, int y)
{
int oldx = clipx, oldy = clipy;
@@ -796,12 +768,12 @@ int x, y;
}
static void
vesa_redrawmap()
vesa_redrawmap(void)
{
unsigned y_top = TOP_MAP_ROW * vesa_char_height;
unsigned y_bottom = vesa_y_res - 5 * vesa_char_height;
unsigned x, y, cx, cy, px, py;
unsigned long color;
unsigned x, y, cx, cy, py /*, px */ ;
/* unsigned long color; */
unsigned long offset = y_top * (unsigned long) vesa_scan_line;
unsigned char *p_row = NULL;
unsigned p_row_width;
@@ -813,9 +785,9 @@ vesa_redrawmap()
if (iflags.traditional_view) {
/* Text mode */
y = y_top;
for (cy = clipy; cy <= clipymax && cy < ROWNO; ++cy) {
for (cy = clipy; cy <= (unsigned) clipymax && cy < ROWNO; ++cy) {
struct VesaCharacter t_row[COLNO];
for (cx = clipx; cx <= clipxmax && cx < COLNO; ++cx) {
for (cx = clipx; cx <= (unsigned) clipxmax && cx < COLNO; ++cx) {
t_row[cx].chr = map[cy][cx].ch;
t_row[cx].colour = map[cy][cx].attr;
}
@@ -852,9 +824,9 @@ vesa_redrawmap()
p_row_width = iflags.wc_tile_width * vesa_pixel_bytes;
y = y_top;
for (cy = clipy; cy <= clipymax && cy < ROWNO; ++cy) {
for (py = 0; py < iflags.wc_tile_height; ++py) {
for (cx = clipx; cx <= clipxmax && cx < COLNO; ++cx) {
for (cy = clipy; cy <= (unsigned) clipymax && cy < ROWNO; ++cy) {
for (py = 0; py < (unsigned) iflags.wc_tile_height; ++py) {
for (cx = clipx; cx <= (unsigned) clipxmax && cx < COLNO; ++cx) {
tile = vesa_tiles[glyph2tile[map[cy][cx].glyph]];
vesa_WritePixelRow(offset + p_row_width * (cx - clipx), tile + p_row_width * py, p_row_width);
}
@@ -877,8 +849,7 @@ vesa_redrawmap()
#endif /* USE_TILES && CLIPPING */
void
vesa_userpan(pan)
enum vga_pan_direction pan;
vesa_userpan(enum vga_pan_direction pan)
{
/* pline("Into userpan"); */
if (iflags.over_view || iflags.traditional_view)
@@ -934,8 +905,7 @@ enum vga_pan_direction pan;
}
void
vesa_overview(on)
boolean on;
vesa_overview(boolean on)
{
/* vesa_HideCursor(); */
if (on) {
@@ -968,8 +938,7 @@ boolean on;
}
void
vesa_traditional(on)
boolean on;
vesa_traditional(boolean on)
{
/* vesa_HideCursor(); */
if (on) {
@@ -1005,7 +974,7 @@ boolean on;
}
void
vesa_refresh()
vesa_refresh(void)
{
positionbar();
vesa_redrawmap();
@@ -1014,9 +983,7 @@ vesa_refresh()
#if 0
static void
decal_packed(gp, special)
const struct TileImage *gp;
unsigned special;
decal_packed(const struct TileImage *gp, unsigned special)
{
/* FIXME: the tile array is fixed in memory and should not be changed;
if we ever implement this, we'll have to copy the pixels */
@@ -1114,13 +1081,13 @@ vesa_Init(void)
/* Set the size of the tiles for the overview mode */
vesa_oview_width = vesa_x_res / COLNO;
if (vesa_oview_width > iflags.wc_tile_width) {
vesa_oview_width = iflags.wc_tile_width;
if (vesa_oview_width > (unsigned) iflags.wc_tile_width) {
vesa_oview_width = (unsigned) iflags.wc_tile_width;
}
vesa_oview_height = (vesa_y_res - (TOP_MAP_ROW + 4) * vesa_char_height)
/ ROWNO;
if (vesa_oview_height > iflags.wc_tile_height) {
vesa_oview_height = iflags.wc_tile_height;
if (vesa_oview_height > (unsigned) iflags.wc_tile_height) {
vesa_oview_height = (unsigned) iflags.wc_tile_height;
}
/* Use the map font size to set the font size */
@@ -1146,7 +1113,7 @@ vesa_Init(void)
num_pixels = iflags.wc_tile_width * iflags.wc_tile_height;
num_oview_pixels = vesa_oview_width * vesa_oview_height;
set_tile_type(vesa_pixel_size > 8);
for (i = 0; i < total_tiles_used; ++i) {
for (i = 0; i < (unsigned) total_tiles_used; ++i) {
const struct TileImage *tile = get_tile(i);
struct TileImage *ov_tile = stretch_tile(tile, vesa_oview_width, vesa_oview_height);
unsigned j;
@@ -1200,7 +1167,7 @@ vesa_Init(void)
/* Set the size of the map viewport */
static void
vesa_SetViewPort()
vesa_SetViewPort(void)
{
unsigned y_reserved = (TOP_MAP_ROW + 5) * vesa_char_height;
unsigned y_map = vesa_y_res - y_reserved;
@@ -1220,8 +1187,7 @@ vesa_SetViewPort()
*
*/
static void
vesa_SwitchMode(mode)
unsigned mode;
vesa_SwitchMode(unsigned mode)
{
__dpmi_regs regs;
@@ -1307,7 +1273,7 @@ vesa_FontPtrs(void)
* returns a VbeInfoBlock describing the features of the VESA BIOS.
*/
int
vesa_detect()
vesa_detect(void)
{
int vbe_info_sel = -1; /* custodial */
int vbe_info_seg;
@@ -1489,9 +1455,7 @@ error:
}
static unsigned
vesa_FindMode(mode_addr, bits)
unsigned long mode_addr;
unsigned bits;
vesa_FindMode(unsigned long mode_addr, unsigned bits)
{
unsigned selected_mode;
struct ModeInfoBlock mode_info0, mode_info;
@@ -1542,8 +1506,7 @@ unsigned bits;
*
*/
static void
vesa_WriteChar(chr, col, row, colour)
int chr, col, row, colour;
vesa_WriteChar(int chr, int col, int row, int colour)
{
int pixx, pixy;
@@ -1562,17 +1525,16 @@ int chr, col, row, colour;
* transparency
*/
static void
vesa_WriteCharXY(chr, pixx, pixy, colour)
int chr, pixx, pixy, colour;
vesa_WriteCharXY(int chr, int pixx, int pixy, int colour)
{
/* Flush if cache is full or if not contiguous to the last character */
if (chr_cache_size >= SIZE(chr_cache)) {
vesa_flush_text();
}
if (chr_cache_size != 0 && chr_cache_lastx + vesa_char_width != pixx) {
if (chr_cache_size != 0 && chr_cache_lastx + vesa_char_width != (unsigned) pixx) {
vesa_flush_text();
}
if (chr_cache_size != 0 && chr_cache_pixy != pixy) {
if (chr_cache_size != 0 && chr_cache_pixy != (unsigned) pixy) {
vesa_flush_text();
}
/* Add to cache and write later */
@@ -1591,13 +1553,12 @@ int chr, pixx, pixy, colour;
* Don't bother cacheing; only the position bar and the cursor use this
*/
static void
vesa_WriteCharTransparent(chr, pixx, pixy, colour)
int chr, pixx, pixy, colour;
vesa_WriteCharTransparent(int chr, int pixx, int pixy, int colour)
{
int px, py;
for (py = 0; py < vesa_char_height; ++py) {
for (px = 0; px < vesa_char_width; ++px) {
for (py = 0; py < (int) vesa_char_height; ++py) {
for (px = 0; px < (int) vesa_char_width; ++px) {
if (vesa_GetCharPixel(chr, px, py)) {
vesa_WritePixel(pixx + px, pixy + py, colour + FIRST_TEXT_COLOR);
}
@@ -1606,7 +1567,7 @@ int chr, pixx, pixy, colour;
}
void
vesa_flush_text()
vesa_flush_text(void)
{
if (chr_cache_size == 0) return;
@@ -1615,10 +1576,8 @@ vesa_flush_text()
}
static void
vesa_WriteTextRow(pixx, pixy, t_row, t_row_width)
int pixx, pixy;
struct VesaCharacter const *t_row;
unsigned t_row_width;
vesa_WriteTextRow(int pixx, int pixy, struct VesaCharacter const *t_row,
unsigned t_row_width)
{
int x, px, py;
unsigned i;
@@ -1639,7 +1598,7 @@ unsigned t_row_width;
}
/* First loop: draw one raster line of all row entries */
for (py = 0; py < vesa_char_height; ++py) {
for (py = 0; py < (int) vesa_char_height; ++py) {
/* Second loop: draw one raster line of one character */
x = 0;
for (i = 0; i < t_row_width; ++i) {
@@ -1656,7 +1615,7 @@ unsigned t_row_width;
fg[3] = (pix >> 24) & 0xFF;
}
/* Third loop: draw eight pixels */
for (px = 0; px < vesa_char_width; px += 8) {
for (px = 0; px < (int) vesa_char_width; px += 8) {
/* Fourth loop: draw one pixel */
int px2;
unsigned char fnt = vesa_GetCharPixelRow(chr, px, py);
@@ -1682,9 +1641,7 @@ unsigned t_row_width;
}
static boolean
vesa_GetCharPixel(ch, x, y)
int ch;
unsigned x, y;
vesa_GetCharPixel(int ch, unsigned x, unsigned y)
{
unsigned x2;
unsigned char fnt;
@@ -1696,9 +1653,7 @@ unsigned x, y;
}
static unsigned char
vesa_GetCharPixelRow(ch, x, y)
int ch;
unsigned x, y;
vesa_GetCharPixelRow(int ch, unsigned x, unsigned y)
{
unsigned x1;
unsigned char fnt;
@@ -1736,8 +1691,7 @@ unsigned x, y;
/* Scale font pixels horizontally */
static unsigned long
vesa_DoublePixels(fnt)
unsigned long fnt;
vesa_DoublePixels(unsigned long fnt)
{
static const unsigned char double_bits[] = {
0x00, 0x03, 0x0C, 0x0F,
@@ -1757,8 +1711,7 @@ unsigned long fnt;
}
static unsigned long
vesa_TriplePixels(fnt)
unsigned long fnt;
vesa_TriplePixels(unsigned long fnt)
{
static const unsigned short triple_bits[] = {
00000, 00007, 00070, 00077,
@@ -1787,14 +1740,12 @@ unsigned long fnt;
*
*/
static void
vesa_DisplayCell(tilenum, col, row)
int tilenum;
int col, row;
vesa_DisplayCell(int tilenum, int col, int row)
{
unsigned char const *tile;
unsigned t_width, t_height;
unsigned char const *tptr;
int px, py, pixx, pixy;
int /* px, */ py, pixx, pixy;
unsigned long offset;
unsigned p_row_width;
@@ -1817,7 +1768,7 @@ int col, row;
offset = pixy * (unsigned long)vesa_scan_line + pixx * vesa_pixel_bytes;
tptr = tile;
for (py = 0; py < t_height; ++py) {
for (py = 0; py < (int) t_height; ++py) {
vesa_WritePixelRow(offset, tptr, p_row_width);
offset += vesa_scan_line;
tptr += p_row_width;
@@ -1830,9 +1781,7 @@ int col, row;
*
*/
static void
vesa_WriteStr(s, len, col, row, colour)
const char *s;
int len, col, row, colour;
vesa_WriteStr(const char *s, int len, int col, int row, int colour)
{
const unsigned char *us;
int i = 0;
@@ -1859,8 +1808,7 @@ int len, col, row, colour;
*
*/
static boolean
vesa_SetPalette(palette)
const struct Pixel *palette;
vesa_SetPalette(const struct Pixel *palette)
{
if (vesa_pixel_size == 8) {
return vesa_SetHardPalette(palette);
@@ -1870,8 +1818,7 @@ const struct Pixel *palette;
}
static boolean
vesa_SetHardPalette(palette)
const struct Pixel *palette;
vesa_SetHardPalette(const struct Pixel *palette)
{
int palette_sel = -1; /* custodial */
int palette_seg;
@@ -1958,8 +1905,7 @@ error:
}
static boolean
vesa_SetSoftPalette(palette)
const struct Pixel *palette;
vesa_SetSoftPalette(const struct Pixel *palette)
{
const struct Pixel *p;
unsigned i;
@@ -1993,8 +1939,7 @@ const struct Pixel *palette;
static unsigned char pbar[COLNO];
void
vesa_update_positionbar(posbar)
char *posbar;
vesa_update_positionbar(char *posbar)
{
unsigned char *p = pbar;
if (posbar)
@@ -2004,7 +1949,7 @@ char *posbar;
}
static void
positionbar()
positionbar(void)
{
unsigned char *posbar = pbar;
int feature, ucol;
@@ -2084,7 +2029,7 @@ positionbar()
#ifdef SIMULATE_CURSOR
void
vesa_DrawCursor()
vesa_DrawCursor(void)
{
static boolean last_inmap = FALSE;
unsigned x, y, left, top, right, bottom, width, height;
@@ -2111,7 +2056,8 @@ vesa_DrawCursor()
x = min(curcol, (CO - 1)); /* protection from callers */
y = min(currow, (LI - 1)); /* protection from callers */
if (!halfwidth
&& ((x < clipx) || (x > clipxmax) || (y < clipy) || (y > clipymax)))
&& ((x < (unsigned) clipx) || (x > (unsigned) clipxmax)
|| (y < (unsigned) clipy) || (y > (unsigned) clipymax)))
return;
if (inmap) {
x -= clipx;
@@ -2198,7 +2144,7 @@ vesa_DrawCursor()
}
void
vesa_HideCursor()
vesa_HideCursor(void)
{
unsigned x, y, left, top, width, height;
boolean isrogue = Is_rogue_level(&u.uz);
@@ -2213,7 +2159,9 @@ vesa_HideCursor()
x = min(curcol, (CO - 1)); /* protection from callers */
y = min(currow, (LI - 1)); /* protection from callers */
if (!halfwidth
&& ((x < clipx) || (x > clipxmax) || (y < clipy) || (y > clipymax)))
&& ((x < (unsigned) clipx) || (x > (unsigned) clipxmax)
|| (y < (unsigned) clipy)
|| (y > (unsigned) clipymax)))
return;
if (inmap) {
x -= clipx;