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dxx-rebirth/2d/bitblt.c

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initial import
2006-03-20 17:12:09 +00:00
/* $Id: bitblt.c,v 1.1.1.1 2006/03/17 19:51:56 zicodxx Exp $ */
/*
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
*/
/*
*
* Routines for bitblt's.
*
introduced new bitmap flag to draw cockpit bitmap with transparency; draw transparent cockpit bitmap over gauges to make it more pixel-correct; code cleanups
2007-06-10 16:21:53 +00:00
*/
initial import
2006-03-20 17:12:09 +00:00
#ifdef HAVE_CONFIG_H
#include <conf.h>
#endif
introduced new bitmap flag to draw cockpit bitmap with transparency; draw transparent cockpit bitmap over gauges to make it more pixel-correct; code cleanups
2007-06-10 16:21:53 +00:00
#include <string.h>
initial import
2006-03-20 17:12:09 +00:00
#include "u_mem.h"
#include "gr.h"
#include "grdef.h"
#include "rle.h"
#include "mono.h"
#include "byteswap.h" // because of rle code that has short for row offsets
#include "error.h"
#ifdef OGL
#include "ogl_init.h"
#endif
int gr_bitblt_dest_step_shift = 0;
int gr_bitblt_double = 0;
ubyte *gr_bitblt_fade_table=NULL;
extern void gr_vesa_bitmap( grs_bitmap * source, grs_bitmap * dest, int x, int y );
void gr_linear_movsd( ubyte * source, ubyte * dest, unsigned int nbytes);
// This code aligns edi so that the destination is aligned to a dword boundry before rep movsd
#if !defined(NO_ASM) && defined(__WATCOMC__)
#pragma aux gr_linear_movsd parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx] = \
" cld " \
" mov ebx, ecx " \
" mov eax, edi" \
" and eax, 011b" \
" jz d_aligned" \
" mov ecx, 4" \
" sub ecx, eax" \
" sub ebx, ecx" \
" rep movsb" \
" d_aligned: " \
" mov ecx, ebx" \
" shr ecx, 2" \
" rep movsd" \
" mov ecx, ebx" \
" and ecx, 11b" \
" rep movsb";
#elif !defined(NO_ASM) && defined(__GNUC__)
inline void gr_linear_movsd(ubyte *src, ubyte *dest, unsigned int num_pixels) {
int dummy[3];
__asm__ __volatile__ (
" cld;"
" movl %%ecx, %%ebx;"
" movl %%edi, %%eax;"
" andl $3, %%eax;"
" jz 0f;"
" movl $4, %%ecx;"
" subl %%eax,%%ecx;"
" subl %%ecx,%%ebx;"
" rep; movsb;"
"0: ;"
" movl %%ebx, %%ecx;"
" shrl $2, %%ecx;"
" rep; movsl;"
" movl %%ebx, %%ecx;"
" andl $3, %%ecx;"
" rep; movsb"
: "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2])
: "0" (src), "1" (dest), "2" (num_pixels)
: "%eax", "%ebx");
}
#elif !defined(NO_ASM) && defined(_MSC_VER)
__inline void gr_linear_movsd(ubyte *src, ubyte *dest, unsigned int num_pixels)
{
__asm {
mov esi, [src]
mov edi, [dest]
mov ecx, [num_pixels]
cld
mov ebx, ecx
mov eax, edi
and eax, 011b
jz d_aligned
mov ecx, 4
sub ecx, eax
sub ebx, ecx
rep movsb
d_aligned:
mov ecx, ebx
shr ecx, 2
rep movsd
mov ecx, ebx
and ecx, 11b
rep movsb
}
}
#else // NO_ASM or unknown compiler
#define THRESHOLD 8
#ifdef RELEASE
#define test_byteblit 0
#else
ubyte test_byteblit = 0;
#endif
void gr_linear_movsd(ubyte * src, ubyte * dest, unsigned int num_pixels )
{
introduced new bitmap flag to draw cockpit bitmap with transparency; draw transparent cockpit bitmap over gauges to make it more pixel-correct; code cleanups
2007-06-10 16:21:53 +00:00
memcpy(dest,src,num_pixels);
initial import
2006-03-20 17:12:09 +00:00
}
#endif //#ifdef NO_ASM
static void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels );
#if !defined(NO_ASM) && defined(__WATCOMC__)
#pragma aux gr_linear_rep_movsdm parm [esi] [edi] [ecx] modify exact [ecx esi edi eax] = \
"nextpixel:" \
"mov al,[esi]" \
"inc esi" \
"cmp al, " TRANSPARENCY_COLOR_STR \
"je skip_it" \
"mov [edi], al" \
"skip_it:" \
"inc edi" \
"dec ecx" \
"jne nextpixel";
#elif !defined(NO_ASM) && defined(__GNUC__)
static inline void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels ) {
int dummy[3];
__asm__ __volatile__ (
"0: ;"
" movb (%%esi), %%al;"
" incl %%esi;"
" cmpb $" TRANSPARENCY_COLOR_STR ", %%al;"
" je 1f;"
" movb %%al,(%%edi);"
"1: ;"
" incl %%edi;"
" decl %%ecx;"
" jne 0b"
: "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2])
: "0" (src), "1" (dest), "2" (num_pixels)
: "%eax");
}
#elif !defined(NO_ASM) && defined(_MSC_VER)
__inline void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels )
{
__asm {
nextpixel:
mov esi, [src]
mov edi, [dest]
mov ecx, [num_pixels]
mov al, [esi]
inc esi
cmp al, TRANSPARENCY_COLOR
je skip_it
mov [edi], al
skip_it:
inc edi
dec ecx
jne nextpixel
}
}
#else
static void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels )
{
int i;
for (i=0; i<num_pixels; i++ ) {
if (*src != TRANSPARENCY_COLOR )
*dest = *src;
dest++;
src++;
}
}
#endif
static void gr_linear_rep_movsdm_faded(ubyte * src, ubyte * dest, unsigned int num_pixels, ubyte fade_value );
#if !defined(NO_ASM) && defined(__WATCOMC__)
#pragma aux gr_linear_rep_movsdm_faded parm [esi] [edi] [ecx] [ebx] modify exact [ecx esi edi eax ebx] = \
" xor eax, eax" \
" mov ah, bl" \
"nextpixel:" \
"mov al,[esi]" \
"inc esi" \
"cmp al, " TRANSPARENCY_COLOR_STR \
"je skip_it" \
"mov al, gr_fade_table[eax]" \
"mov [edi], al" \
"skip_it:" \
"inc edi" \
"dec ecx" \
"jne nextpixel";
#elif !defined(NO_ASM) && defined(__GNUC__)
/* #pragma aux gr_linear_rep_movsdm_faded parm [esi] [edi] [ecx] [ebx] modify exact [ecx esi edi eax ebx] */
static inline void gr_linear_rep_movsdm_faded(ubyte * src, ubyte * dest, unsigned int num_pixels, ubyte fade_value ) {
int dummy[4];
__asm__ __volatile__ (
" xorl %%eax, %%eax;"
" movb %%bl, %%ah;"
"0:;"
" movb (%%esi), %%al;"
" incl %%esi;"
" cmpb $" TRANSPARENCY_COLOR_STR ", %%al;"
" je 1f;"
#ifdef __ELF__
" movb gr_fade_table(%%eax), %%al;"
#else
" movb _gr_fade_table(%%eax), %%al;"
#endif
" movb %%al, (%%edi);"
"1:"
" incl %%edi;"
" decl %%ecx;"
" jne 0b"
: "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2]), "=b" (dummy[3])
: "0" (src), "1" (dest), "2" (num_pixels), "3" (fade_value)
: "%eax");
}
#elif !defined(NO_ASM) && defined(_MSC_VER)
__inline void gr_linear_rep_movsdm_faded(void * src, void * dest, unsigned int num_pixels, ubyte fade_value )
{
__asm {
mov esi, [src]
mov edi, [dest]
mov ecx, [num_pixels]
movzx ebx, byte ptr [fade_value]
xor eax, eax
mov ah, bl
nextpixel:
mov al, [esi]
inc esi
cmp al, TRANSPARENCY_COLOR
je skip_it
mov al, gr_fade_table[eax]
mov [edi], al
skip_it:
inc edi
dec ecx
jne nextpixel
}
}
#else
static void gr_linear_rep_movsdm_faded(ubyte * src, ubyte * dest, unsigned int num_pixels, ubyte fade_value )
{
int i;
ubyte source;
ubyte *fade_base;
fade_base = gr_fade_table + (fade_value * 256);
for (i=num_pixels; i != 0; i-- )
{
source = *src;
if (source != (ubyte)TRANSPARENCY_COLOR )
*dest = *(fade_base + source);
dest++;
src++;
}
}
#endif
void gr_linear_rep_movsd_2x(ubyte *src, ubyte *dest, unsigned int num_dest_pixels);
#if !defined(NO_ASM) && defined(__WATCOMC__)
#pragma aux gr_linear_rep_movsd_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx] = \
"shr ecx, 1" \
"jnc nextpixel" \
"mov al, [esi]" \
"mov [edi], al" \
"inc esi" \
"inc edi" \
"cmp ecx, 0" \
"je done" \
"nextpixel:" \
"mov al,[esi]" \
"mov ah, al" \
"mov [edi], ax" \
"inc esi" \
"inc edi" \
"inc edi" \
"dec ecx" \
"jne nextpixel" \
"done:"
#elif !defined(NO_ASM) && defined (__GNUC__)
inline void gr_linear_rep_movsd_2x(ubyte *src, ubyte *dest, unsigned int num_dest_pixels)
{
/* #pragma aux gr_linear_rep_movsd_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx] */
int dummy[3];
__asm__ __volatile__ (
"shrl $1, %%ecx;"
"jnc 0f;"
"movb (%%esi), %%al;"
"movb %%al, (%%edi);"
"incl %%esi;"
"incl %%edi;"
"cmpl $0, %%ecx;"
"je 1f;"
"0: ;"
"movb (%%esi), %%al;"
"movb %%al, %%ah;"
"movw %%ax, (%%edi);"
"incl %%esi;"
"incl %%edi;"
"incl %%edi;"
"decl %%ecx;"
"jne 0b;"
"1:"
: "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2])
: "0" (src), "1" (dest), "2" (num_dest_pixels)
: "%eax");
}
#elif !defined(NO_ASM) && defined(_MSC_VER)
__inline void gr_linear_rep_movsd_2x(ubyte *src, ubyte *dest, unsigned int num_dest_pixels)
{
__asm {
mov esi, [src]
mov edi, [dest]
mov ecx, [num_dest_pixels]
shr ecx, 1
jnc nextpixel
mov al, [esi]
mov [edi], al
inc esi
inc edi
cmp ecx, 0
je done
nextpixel:
mov al, [esi]
mov ah, al
mov [edi], ax
inc esi
inc edi
inc edi
dec ecx
jne nextpixel
done:
}
}
#else
void gr_linear_rep_movsd_2x(ubyte *src, ubyte *dest, unsigned int num_pixels)
{
fixed a bunch of compiler warnings
2007-06-11 09:06:14 +00:00
register ubyte c;
while (num_pixels--) {
if (num_pixels&1)
*dest++=*src++;
else {
unsigned short *sp=(unsigned short *)dest;
c=*src++;
*sp=((short)c<<8)|(short)c;
dest+=2;
initial import
2006-03-20 17:12:09 +00:00
}
}
}
#endif
#ifdef __MSDOS__
static void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize );
#if !defined(NO_ASM) && defined(__WATCOMC__)
#pragma aux modex_copy_column parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = \
"nextpixel:" \
"mov al,[esi]" \
"add esi, ebx" \
"mov [edi], al" \
"add edi, edx" \
"dec ecx" \
"jne nextpixel"
#elif !defined(NO_ASM) && defined(__GNUC__)
static inline void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize ) {
/*#pragma aux modex_copy_column parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = */
__asm__ __volatile__ (
"0: ;"
"movb (%%esi), %%al;"
"addl %%ebx, %%esi;"
"movb %%al, (%%edi);"
"addl %%edx, %%edi;"
"decl %%ecx;"
"jne 0b"
: : "S" (src), "D" (dest), "c" (num_pixels), "b" (src_rowsize), "d" (dest_rowsize)
: "%eax", "%ecx", "%esi", "%edi");
}
#else
static void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize )
{
src = src;
dest = dest;
num_pixels = num_pixels;
src_rowsize = src_rowsize;
dest_rowsize = dest_rowsize;
Int3();
}
#endif
static void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize );
#if !defined(NO_ASM) && defined(__WATCOMC__)
#pragma aux modex_copy_column_m parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = \
"nextpixel:" \
"mov al,[esi]" \
"add esi, ebx" \
"cmp al, " TRANSPARENCY_COLOR_STR \
"je skip_itx" \
"mov [edi], al" \
"skip_itx:" \
"add edi, edx" \
"dec ecx" \
"jne nextpixel"
#elif !defined(NO_ASM) && defined(__GNUC__)
static inline void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize ) {
/* #pragma aux modex_copy_column_m parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = */
int dummy[3];
__asm__ __volatile__ (
"0: ;"
"movb (%%esi), %%al;"
"addl %%ebx, %%esi;"
"cmpb $" TRANSPARENCY_COLOR_STR ", %%al;"
"je 1f;"
"movb %%al, (%%edi);"
"1: ;"
"addl %%edx, %%edi;"
"decl %%ecx;"
"jne 0b"
: "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
: "1" (src), "2" (dest), "0" (num_pixels), "b" (src_rowsize), "d" (dest_rowsize)
: "%eax" );
}
#else
static void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize )
{
src = src;
dest = dest;
num_pixels = num_pixels;
src_rowsize = src_rowsize;
dest_rowsize = dest_rowsize;
Int3();
}
#endif
#endif /* __MSDOS__ */
void gr_ubitmap00( int x, int y, grs_bitmap *bm )
{
register int y1;
int dest_rowsize;
unsigned char * dest;
unsigned char * src;
dest_rowsize=grd_curcanv->cv_bitmap.bm_rowsize << gr_bitblt_dest_step_shift;
dest = &(grd_curcanv->cv_bitmap.bm_data[ dest_rowsize*y+x ]);
src = bm->bm_data;
for (y1=0; y1 < bm->bm_h; y1++ ) {
if (gr_bitblt_double)
gr_linear_rep_movsd_2x( src, dest, bm->bm_w );
else
gr_linear_movsd( src, dest, bm->bm_w );
src += bm->bm_rowsize;
dest+= (int)(dest_rowsize);
}
}
void gr_ubitmap00m( int x, int y, grs_bitmap *bm )
{
register int y1;
int dest_rowsize;
unsigned char * dest;
unsigned char * src;
dest_rowsize=grd_curcanv->cv_bitmap.bm_rowsize << gr_bitblt_dest_step_shift;
dest = &(grd_curcanv->cv_bitmap.bm_data[ dest_rowsize*y+x ]);
src = bm->bm_data;
if (gr_bitblt_fade_table==NULL) {
for (y1=0; y1 < bm->bm_h; y1++ ) {
gr_linear_rep_movsdm( src, dest, bm->bm_w );
src += bm->bm_rowsize;
dest+= (int)(dest_rowsize);
}
} else {
for (y1=0; y1 < bm->bm_h; y1++ ) {
gr_linear_rep_movsdm_faded( src, dest, bm->bm_w, gr_bitblt_fade_table[y1+y] );
src += bm->bm_rowsize;
dest+= (int)(dest_rowsize);
}
}
}
#if 0
" jmp aligned4 " \
" mov eax, edi " \
" and eax, 11b " \
" jz aligned4 " \
" mov ebx, 4 " \
" sub ebx, eax " \
" sub ecx, ebx " \
"alignstart: " \
" mov al, [esi] " \
" add esi, 4 " \
" mov [edi], al " \
" inc edi " \
" dec ebx " \
" jne alignstart " \
"aligned4: "
#endif
#ifdef __MSDOS__
static void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels );
#if !defined(NO_ASM) && defined(__WATCOMC__)
#pragma aux modex_copy_scanline parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = \
" mov ebx, ecx " \
" and ebx, 11b " \
" shr ecx, 2 " \
" cmp ecx, 0 " \
" je no2group " \
"next4pixels: " \
" mov al, [esi+8] " \
" mov ah, [esi+12] " \
" shl eax, 16 " \
" mov al, [esi] " \
" mov ah, [esi+4] " \
" mov [edi], eax " \
" add esi, 16 " \
" add edi, 4 " \
" dec ecx " \
" jne next4pixels " \
"no2group: " \
" cmp ebx, 0 " \
" je done2 " \
"finishend: " \
" mov al, [esi] " \
" add esi, 4 " \
" mov [edi], al " \
" inc edi " \
" dec ebx " \
" jne finishend " \
"done2: ";
#elif !defined (NO_ASM) && defined(__GNUC__)
static inline void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels ) {
/* #pragma aux modex_copy_scanline parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] */
int dummy[3];
__asm__ __volatile__ (
" movl %%ecx, %%ebx;"
" andl $3, %%ebx;"
" shrl $2, %%ecx;"
" cmpl $0, %%ecx;"
" je 1f;"
"0: ;"
" movb 8(%%esi), %%al;"
" movb 12(%%esi), %%ah;"
" shll $16, %%eax;"
" movb (%%esi), %%al;"
" movb 4(%%esi), %%ah;"
" movl %%eax, (%%edi);"
" addl $16, %%esi;"
" addl $4, %%edi;"
" decl %%ecx;"
" jne 0b;"
"1: ;"
" cmpl $0, %%ebx;"
" je 3f;"
"2: ;"
" movb (%%esi), %%al;"
" addl $4, %%esi;"
" movb %%al, (%%edi);"
" incl %%edi;"
" decl %%ebx;"
" jne 2b;"
"3:"
: "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
: "1" (src), "2" (dest), "0" (npixels)
: "%eax", "%ebx", "%edx" );
}
#else
static void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels )
{
src = src;
dest = dest;
npixels = npixels;
Int3();
}
#endif
static void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels );
#if !defined(NO_ASM) && defined(__WATCOMC__)
#pragma aux modex_copy_scanline_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = \
" mov ebx, ecx " \
" and ebx, 11b " \
" shr ecx, 2 " \
" cmp ecx, 0 " \
" je no2group " \
"next4pixels: " \
" mov al, [esi+4] " \
" mov ah, [esi+6] " \
" shl eax, 16 " \
" mov al, [esi] " \
" mov ah, [esi+2] " \
" mov [edi], eax " \
" add esi, 8 " \
" add edi, 4 " \
" dec ecx " \
" jne next4pixels " \
"no2group: " \
" cmp ebx, 0 " \
" je done2 " \
"finishend: " \
" mov al, [esi] " \
" add esi, 2 " \
" mov [edi], al " \
" inc edi " \
" dec ebx " \
" jne finishend " \
"done2: ";
#elif !defined(NO_ASM) && defined(__GNUC__)
static inline void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels ) {
/* #pragma aux modex_copy_scanline_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = */
int dummy[3];
__asm__ __volatile__ (
" movl %%ecx, %%ebx;"
" andl $3, %%ebx;"
" shrl $2, %%ecx;"
" cmpl $0, %%ecx;"
" je 1f;"
"0: ;"
" movb 4(%%esi), %%al;"
" movb 6(%%esi), %%ah;"
" shll $16, %%eax;"
" movb (%%esi), %%al;"
" movb 2(%%esi), %%ah;"
" movl %%eax, (%%edi);"
" addl $8, %%esi;"
" addl $4, %%edi;"
" decl %%ecx;"
" jne 0b;"
"1: ;"
" cmp $0, %%ebx;"
" je 3f;"
"2:"
" movb (%%esi),%%al;"
" addl $2, %%esi;"
" movb %%al, (%%edi);"
" incl %%edi;"
" decl %%ebx;"
" jne 2b;"
"3:"
: "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
: "1" (src), "2" (dest), "0" (npixels)
: "%eax", "%ebx", "%edx" );
}
#else
static void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels )
{
src = src;
dest = dest;
npixels = npixels;
Int3();
}
#endif
// From Linear to ModeX
void gr_bm_ubitblt01(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
ubyte * dbits;
ubyte * sbits;
int sstep,dstep;
int y,plane;
int w1;
if ( w < 4 ) return;
sstep = src->bm_rowsize;
dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
if (!gr_bitblt_double) {
for (plane=0; plane<4; plane++ ) {
gr_modex_setplane( (plane+dx)&3 );
sbits = src->bm_data + (src->bm_rowsize * sy) + sx + plane;
dbits = &gr_video_memory[(dest->bm_rowsize * dy) + ((plane+dx)/4) ];
w1 = w >> 2;
if ( (w&3) > plane ) w1++;
for (y=dy; y < dy+h; y++ ) {
modex_copy_scanline( sbits, dbits, w1 );
dbits += dstep;
sbits += sstep;
}
}
} else {
for (plane=0; plane<4; plane++ ) {
gr_modex_setplane( (plane+dx)&3 );
sbits = src->bm_data + (src->bm_rowsize * sy) + sx + plane/2;
dbits = &gr_video_memory[(dest->bm_rowsize * dy) + ((plane+dx)/4) ];
w1 = w >> 2;
if ( (w&3) > plane ) w1++;
for (y=dy; y < dy+h; y++ ) {
modex_copy_scanline_2x( sbits, dbits, w1 );
dbits += dstep;
sbits += sstep;
}
}
}
}
// From Linear to ModeX masked
void gr_bm_ubitblt01m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
//ubyte * dbits1;
//ubyte * sbits1;
ubyte * dbits;
ubyte * sbits;
int x;
//int y;
sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
dbits = &gr_video_memory[(dest->bm_rowsize * dy) + dx/4];
for (x=dx; x < dx+w; x++ ) {
gr_modex_setplane( x&3 );
//sbits1 = sbits;
//dbits1 = dbits;
//for (y=0; y < h; y++ ) {
// *dbits1 = *sbits1;
// sbits1 += src_bm_rowsize;
// dbits1 += dest_bm_rowsize;
//}
modex_copy_column_m(sbits, dbits, h, src->bm_rowsize, dest->bm_rowsize << gr_bitblt_dest_step_shift );
sbits++;
if ( (x&3)==3 )
dbits++;
}
}
#endif /* __MSDOS__ */
void gr_ubitmap012( int x, int y, grs_bitmap *bm )
{
register int x1, y1;
unsigned char * src;
src = bm->bm_data;
for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
gr_setcolor( *src++ );
gr_upixel( x1, y1 );
}
}
}
void gr_ubitmap012m( int x, int y, grs_bitmap *bm )
{
register int x1, y1;
unsigned char * src;
src = bm->bm_data;
for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
if ( *src != TRANSPARENCY_COLOR ) {
gr_setcolor( *src );
gr_upixel( x1, y1 );
}
src++;
}
}
}
void gr_ubitmapGENERIC(int x, int y, grs_bitmap * bm)
{
register int x1, y1;
for (y1=0; y1 < bm->bm_h; y1++ ) {
for (x1=0; x1 < bm->bm_w; x1++ ) {
gr_setcolor( gr_gpixel(bm,x1,y1) );
gr_upixel( x+x1, y+y1 );
}
}
}
void gr_ubitmapGENERICm(int x, int y, grs_bitmap * bm)
{
register int x1, y1;
ubyte c;
for (y1=0; y1 < bm->bm_h; y1++ ) {
for (x1=0; x1 < bm->bm_w; x1++ ) {
c = gr_gpixel(bm,x1,y1);
if ( c != TRANSPARENCY_COLOR ) {
gr_setcolor( c );
gr_upixel( x+x1, y+y1 );
}
}
}
}
#ifdef __MSDOS__
// From linear to SVGA
void gr_bm_ubitblt02(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
unsigned char * sbits;
unsigned int offset, EndingOffset, VideoLocation;
int sbpr, dbpr, y1, page, BytesToMove;
sbpr = src->bm_rowsize;
dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
sbits = src->bm_data + ( sbpr*sy ) + sx;
for (y1=0; y1 < h; y1++ ) {
page = VideoLocation >> 16;
offset = VideoLocation & 0xFFFF;
gr_vesa_setpage( page );
EndingOffset = offset+w-1;
if ( EndingOffset <= 0xFFFF )
{
if ( gr_bitblt_double )
gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), w );
else
gr_linear_movsd( (void *)sbits, (void *)(offset+0xA0000), w );
VideoLocation += dbpr;
sbits += sbpr;
}
else
{
BytesToMove = 0xFFFF-offset+1;
if ( gr_bitblt_double )
gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
else
gr_linear_movsd( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
page++;
gr_vesa_setpage(page);
if ( gr_bitblt_double )
gr_linear_rep_movsd_2x( (void *)(sbits+BytesToMove/2), (void *)0xA0000, EndingOffset - 0xFFFF );
else
gr_linear_movsd( (void *)(sbits+BytesToMove), (void *)0xA0000, EndingOffset - 0xFFFF );
VideoLocation += dbpr;
sbits += sbpr;
}
}
}
#endif
#ifdef __MSDOS__
void gr_bm_ubitblt02m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
unsigned char * sbits;
unsigned int offset, EndingOffset, VideoLocation;
int sbpr, dbpr, y1, page, BytesToMove;
sbpr = src->bm_rowsize;
dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
sbits = src->bm_data + ( sbpr*sy ) + sx;
for (y1=0; y1 < h; y1++ ) {
page = VideoLocation >> 16;
offset = VideoLocation & 0xFFFF;
gr_vesa_setpage( page );
EndingOffset = offset+w-1;
if ( EndingOffset <= 0xFFFF )
{
gr_linear_rep_movsdm( (void *)sbits, (void *)(offset+0xA0000), w );
VideoLocation += dbpr;
sbits += sbpr;
}
else
{
BytesToMove = 0xFFFF-offset+1;
gr_linear_rep_movsdm( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
page++;
gr_vesa_setpage(page);
gr_linear_rep_movsdm( (void *)(sbits+BytesToMove), (void *)0xA0000, EndingOffset - 0xFFFF );
VideoLocation += dbpr;
sbits += sbpr;
}
}
}
// From SVGA to linear
void gr_bm_ubitblt20(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
unsigned char * dbits;
unsigned int offset, offset1, offset2;
int sbpr, dbpr, y1, page;
dbpr = dest->bm_rowsize;
sbpr = src->bm_rowsize;
for (y1=0; y1 < h; y1++ ) {
offset2 = (unsigned int)src->bm_data + (sbpr * (y1+sy)) + sx;
dbits = dest->bm_data + (dbpr * (y1+dy)) + dx;
page = offset2 >> 16;
offset = offset2 & 0xFFFF;
offset1 = offset+w-1;
gr_vesa_setpage( page );
if ( offset1 > 0xFFFF ) {
// Overlaps two pages
while( offset <= 0xFFFF )
*dbits++ = gr_video_memory[offset++];
offset1 -= (0xFFFF+1);
offset = 0;
page++;
gr_vesa_setpage(page);
}
while( offset <= offset1 )
*dbits++ = gr_video_memory[offset++];
}
}
#endif
//@extern int Interlacing_on;
// From Linear to Linear
void gr_bm_ubitblt00(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
unsigned char * dbits;
unsigned char * sbits;
//int src_bm_rowsize_2, dest_bm_rowsize_2;
int dstep;
int i;
sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
// No interlacing, copy the whole buffer.
for (i=0; i < h; i++ ) {
if (gr_bitblt_double)
gr_linear_rep_movsd_2x( sbits, dbits, w );
else
gr_linear_movsd( sbits, dbits, w );
sbits += src->bm_rowsize;
dbits += dstep;
}
}
// From Linear to Linear Masked
void gr_bm_ubitblt00m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
unsigned char * dbits;
unsigned char * sbits;
//int src_bm_rowsize_2, dest_bm_rowsize_2;
int i;
sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
// No interlacing, copy the whole buffer.
if (gr_bitblt_fade_table==NULL) {
for (i=0; i < h; i++ ) {
gr_linear_rep_movsdm( sbits, dbits, w );
sbits += src->bm_rowsize;
dbits += dest->bm_rowsize;
}
} else {
for (i=0; i < h; i++ ) {
gr_linear_rep_movsdm_faded( sbits, dbits, w, gr_bitblt_fade_table[dy+i] );
sbits += src->bm_rowsize;
dbits += dest->bm_rowsize;
}
}
}
extern void gr_lbitblt( grs_bitmap * source, grs_bitmap * dest, int height, int width );
#ifdef MACINTOSH
//extern void BlitLargeAlign(ubyte *draw_buffer, int dstRowBytes, ubyte *dstPtr, int w, int h, int modulus);
asm void BlitLargeAlign(ubyte *rSrcPtr, int rDblDStrd, ubyte *rDst1Ptr, int rWidth, int rHeight, int rModulus)
{
stw r31,-4(SP) // store non-volatile reg in red zone
addi r5,r5,-8 // subtract 8 from dst
stw r30,-8(SP) // store non-volatile reg in red zone
la r30,-16(SP) // calculate copy of local 8-byte variable
sub r9,r8,r6
// rSStrd = modulus - w
add r31,r5,r4 // dst2 = dstRowBytes + dst1
sub r4,r4,r6 // r4 = dstRowBytes - w
addi r7,r7,-1 // subtract 1 from height count
srawi r6,r6,2 // rWidth = w >> 2
addi r3,r3,-4 // subtract 4 from src
addi r6,r6,-1 // subtract 1 from width count
add r4,r4,r4 // rDblDStrd = 2 * r4
BlitLargeAlignY: // y count is in r7
lwzu r10,4(r3) // load a long into r10
mr r0,r10 // put a copy in r0
mr r11,r10
// these are simplified -- can't use 'em inslwi r0,r10,16,8
// these are simplified -- can't use 'em insrwi r11,r10,16,8
rlwimi r0,r10,24,8,31
rlwimi r11,r10,8,8,23
rlwimi r0,r10,16,24,31
stw r0,0(r30)
rlwimi r11,r10,16,0,7
stw r11,4(r30)
mtctr r6 // copy x count into the counter
lfd fp0,0(r30)
BlitLargeAlignX:
lwzu r10,4(r3) // load a long into r10
stfdu fp0,8(r5)
mr r0,r10 // put a copy in r0
mr r11,r10
// simplefied inslwi r0,r10,16,8
// simplefied insrwi r11,r10,16,8
rlwimi r0,r10,24,8,31
rlwimi r11,r10,8,8,23
rlwimi r0,r10,16,24,31
stw r0,0(r30)
rlwimi r11,r10,16,0,7
stw r11,4(r30)
stfdu fp0,8(r31)
lfd fp0,0(r30)
bdnz BlitLargeAlignX // loop over all x
stfdu fp0,8(r5)
addic. r7,r7,-1 // decrement the counter
add r3,r3,r9
// src += sstride
add r5,r5,r4
// dst1 += dstride
stfdu fp0,8(r31)
add r31,r31,r4
// dst2 += dstride
bne BlitLargeAlignY // loop for all y
lwz r30,-8(SP) // restore non-volatile regs
lwz r31,-4(SP) // restore non-volatile regs
blr // return to caller
}
#endif /* MACINTOSH */
// Clipped bitmap ...
void gr_bitmap( int x, int y, grs_bitmap *bm )
{
int dx1=x, dx2=x+bm->bm_w-1;
int dy1=y, dy2=y+bm->bm_h-1;
int sx=0, sy=0;
if ((dx1 >= grd_curcanv->cv_bitmap.bm_w ) || (dx2 < 0)) return;
if ((dy1 >= grd_curcanv->cv_bitmap.bm_h) || (dy2 < 0)) return;
if ( dx1 < 0 ) { sx = -dx1; dx1 = 0; }
if ( dy1 < 0 ) { sy = -dy1; dy1 = 0; }
if ( dx2 >= grd_curcanv->cv_bitmap.bm_w ) { dx2 = grd_curcanv->cv_bitmap.bm_w-1; }
if ( dy2 >= grd_curcanv->cv_bitmap.bm_h ) { dy2 = grd_curcanv->cv_bitmap.bm_h-1; }
// Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
gr_bm_ubitblt(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
}
//-NOT-used // From linear to SVGA
//-NOT-used void gr_bm_ubitblt02_2x(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
//-NOT-used {
//-NOT-used unsigned char * sbits;
//-NOT-used
//-NOT-used unsigned int offset, EndingOffset, VideoLocation;
//-NOT-used
//-NOT-used int sbpr, dbpr, y1, page, BytesToMove;
//-NOT-used
//-NOT-used sbpr = src->bm_rowsize;
//-NOT-used
//-NOT-used dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
//-NOT-used
//-NOT-used VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
//-NOT-used
//-NOT-used sbits = src->bm_data + ( sbpr*sy ) + sx;
//-NOT-used
//-NOT-used for (y1=0; y1 < h; y1++ ) {
//-NOT-used
//-NOT-used page = VideoLocation >> 16;
//-NOT-used offset = VideoLocation & 0xFFFF;
//-NOT-used
//-NOT-used gr_vesa_setpage( page );
//-NOT-used
//-NOT-used EndingOffset = offset+w-1;
//-NOT-used
//-NOT-used if ( EndingOffset <= 0xFFFF )
//-NOT-used {
//-NOT-used gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), w );
//-NOT-used
//-NOT-used VideoLocation += dbpr;
//-NOT-used sbits += sbpr;
//-NOT-used }
//-NOT-used else
//-NOT-used {
//-NOT-used BytesToMove = 0xFFFF-offset+1;
//-NOT-used
//-NOT-used gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
//-NOT-used
//-NOT-used page++;
//-NOT-used gr_vesa_setpage(page);
//-NOT-used
//-NOT-used gr_linear_rep_movsd_2x( (void *)(sbits+BytesToMove/2), (void *)0xA0000, EndingOffset - 0xFFFF );
//-NOT-used
//-NOT-used VideoLocation += dbpr;
//-NOT-used sbits += sbpr;
//-NOT-used }
//-NOT-used
//-NOT-used
//-NOT-used }
//-NOT-used }
//-NOT-used // From Linear to Linear
//-NOT-used void gr_bm_ubitblt00_2x(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
//-NOT-used {
//-NOT-used unsigned char * dbits;
//-NOT-used unsigned char * sbits;
//-NOT-used //int src_bm_rowsize_2, dest_bm_rowsize_2;
//-NOT-used
//-NOT-used int i;
//-NOT-used
//-NOT-used sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
//-NOT-used dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
//-NOT-used
//-NOT-used // No interlacing, copy the whole buffer.
//-NOT-used for (i=0; i < h; i++ ) {
//-NOT-used gr_linear_rep_movsd_2x( sbits, dbits, w );
//-NOT-used
//-NOT-used sbits += src->bm_rowsize;
//-NOT-used dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
//-NOT-used }
//-NOT-used }
void gr_bm_ubitblt00_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
unsigned char * dbits;
unsigned char * sbits;
int i, data_offset;
data_offset = 1;
if (src->bm_flags & BM_FLAG_RLE_BIG)
data_offset = 2;
sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
for (i=0; i<sy; i++ )
sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
// No interlacing, copy the whole buffer.
for (i=0; i < h; i++ ) {
gr_rle_expand_scanline( dbits, sbits, sx, sx+w-1 );
if ( src->bm_flags & BM_FLAG_RLE_BIG )
sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
else
sbits += (int)(src->bm_data[4+i+sy]);
dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
}
}
void gr_bm_ubitblt00m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
unsigned char * dbits;
unsigned char * sbits;
int i, data_offset;
data_offset = 1;
if (src->bm_flags & BM_FLAG_RLE_BIG)
data_offset = 2;
sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
for (i=0; i<sy; i++ )
sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
// No interlacing, copy the whole buffer.
for (i=0; i < h; i++ ) {
introduced new bitmap flag to draw cockpit bitmap with transparency; draw transparent cockpit bitmap over gauges to make it more pixel-correct; code cleanups
2007-06-10 16:21:53 +00:00
gr_rle_expand_scanline_masked( dbits, sbits, sx, sx+w-1, (src->bm_flags & BM_FLAG_COCKPIT_TRANSPARENT) );
initial import
2006-03-20 17:12:09 +00:00
if ( src->bm_flags & BM_FLAG_RLE_BIG )
sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
else
sbits += (int)(src->bm_data[4+i+sy]);
dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
}
}
// in rle.c
extern void gr_rle_expand_scanline_generic( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
extern void gr_rle_expand_scanline_generic_masked( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
extern void gr_rle_expand_scanline_svga_masked( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
void gr_bm_ubitblt0x_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
int i, data_offset;
register int y1;
unsigned char * sbits;
//mprintf( 0, "SVGA RLE!\n" );
data_offset = 1;
if (src->bm_flags & BM_FLAG_RLE_BIG)
data_offset = 2;
sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
for (i=0; i<sy; i++ )
sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
for (y1=0; y1 < h; y1++ ) {
gr_rle_expand_scanline_generic( dest, dx, dy+y1, sbits, sx, sx+w-1 );
if ( src->bm_flags & BM_FLAG_RLE_BIG )
sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
else
sbits += (int)src->bm_data[4+y1+sy];
}
}
void gr_bm_ubitblt0xm_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
int i, data_offset;
register int y1;
unsigned char * sbits;
//mprintf( 0, "SVGA RLE!\n" );
data_offset = 1;
if (src->bm_flags & BM_FLAG_RLE_BIG)
data_offset = 2;
sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
for (i=0; i<sy; i++ )
sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
for (y1=0; y1 < h; y1++ ) {
gr_rle_expand_scanline_generic_masked( dest, dx, dy+y1, sbits, sx, sx+w-1 );
if ( src->bm_flags & BM_FLAG_RLE_BIG )
sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
else
sbits += (int)src->bm_data[4+y1+sy];
}
}
#ifdef __MSDOS__
void gr_bm_ubitblt02m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
int i, data_offset;
register int y1;
unsigned char * sbits;
//mprintf( 0, "SVGA RLE!\n" );
data_offset = 1;
if (src->bm_flags & BM_FLAG_RLE_BIG)
data_offset = 2;
sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
for (i=0; i<sy; i++ )
sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
for (y1=0; y1 < h; y1++ ) {
gr_rle_expand_scanline_svga_masked( dest, dx, dy+y1, sbits, sx, sx+w-1 );
if ( src->bm_flags & BM_FLAG_RLE_BIG )
sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
else
sbits += (int)src->bm_data[4+y1+sy];
}
}
#endif
void gr_bm_ubitblt(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
register int x1, y1;
if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_LINEAR ))
{
if ( src->bm_flags & BM_FLAG_RLE )
gr_bm_ubitblt00_rle( w, h, dx, dy, sx, sy, src, dest );
else
gr_bm_ubitblt00( w, h, dx, dy, sx, sy, src, dest );
return;
}
#ifdef OGL
if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_OGL ))
{
ogl_ubitblt(w, h, dx, dy, sx, sy, src, dest);
return;
}
if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_LINEAR ))
{
return;
}
if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_OGL ))
{
return;
}
#endif
if ( (src->bm_flags & BM_FLAG_RLE ) && (src->bm_type == BM_LINEAR) ) {
gr_bm_ubitblt0x_rle(w, h, dx, dy, sx, sy, src, dest );
return;
}
for (y1=0; y1 < h; y1++ ) {
for (x1=0; x1 < w; x1++ ) {
gr_bm_pixel( dest, dx+x1, dy+y1, gr_gpixel(src,sx+x1,sy+y1) );
}
}
}
void gr_bm_bitblt(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
int dx1=dx, dx2=dx+dest->bm_w-1;
int dy1=dy, dy2=dy+dest->bm_h-1;
int sx1=sx, sx2=sx+src->bm_w-1;
int sy1=sy, sy2=sy+src->bm_h-1;
if ((dx1 >= dest->bm_w ) || (dx2 < 0)) return;
if ((dy1 >= dest->bm_h ) || (dy2 < 0)) return;
if ( dx1 < 0 ) { sx1 += -dx1; dx1 = 0; }
if ( dy1 < 0 ) { sy1 += -dy1; dy1 = 0; }
if ( dx2 >= dest->bm_w ) { dx2 = dest->bm_w-1; }
if ( dy2 >= dest->bm_h ) { dy2 = dest->bm_h-1; }
if ((sx1 >= src->bm_w ) || (sx2 < 0)) return;
if ((sy1 >= src->bm_h ) || (sy2 < 0)) return;
if ( sx1 < 0 ) { dx1 += -sx1; sx1 = 0; }
if ( sy1 < 0 ) { dy1 += -sy1; sy1 = 0; }
if ( sx2 >= src->bm_w ) { sx2 = src->bm_w-1; }
if ( sy2 >= src->bm_h ) { sy2 = src->bm_h-1; }
// Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
if ( dx2-dx1+1 < w )
w = dx2-dx1+1;
if ( dy2-dy1+1 < h )
h = dy2-dy1+1;
if ( sx2-sx1+1 < w )
w = sx2-sx1+1;
if ( sy2-sy1+1 < h )
h = sy2-sy1+1;
gr_bm_ubitblt(w,h, dx1, dy1, sx1, sy1, src, dest );
}
void gr_ubitmap( int x, int y, grs_bitmap *bm )
{
int source, dest;
source = bm->bm_type;
dest = TYPE;
if (source==BM_LINEAR) {
switch( dest )
{
case BM_LINEAR:
if ( bm->bm_flags & BM_FLAG_RLE )
gr_bm_ubitblt00_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
else
gr_ubitmap00( x, y, bm );
return;
#ifdef OGL
case BM_OGL:
ogl_ubitmapm(x,y,bm);
return;
#endif
#ifdef __MSDOS__
case BM_SVGA:
if ( bm->bm_flags & BM_FLAG_RLE )
gr_bm_ubitblt0x_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
else
gr_vesa_bitmap( bm, &grd_curcanv->cv_bitmap, x, y );
return;
case BM_MODEX:
gr_bm_ubitblt01(bm->bm_w, bm->bm_h, x+XOFFSET, y+YOFFSET, 0, 0, bm, &grd_curcanv->cv_bitmap);
return;
#endif
default:
gr_ubitmap012( x, y, bm );
return;
}
} else {
gr_ubitmapGENERIC(x, y, bm);
}
}
void gr_ubitmapm( int x, int y, grs_bitmap *bm )
{
int source, dest;
source = bm->bm_type;
dest = TYPE;
if (source==BM_LINEAR) {
switch( dest )
{
case BM_LINEAR:
if ( bm->bm_flags & BM_FLAG_RLE )
gr_bm_ubitblt00m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
else
gr_ubitmap00m( x, y, bm );
return;
#ifdef OGL
case BM_OGL:
ogl_ubitmapm(x,y,bm);
return;
#endif
#ifdef __MSDOS__
case BM_SVGA:
if (bm->bm_flags & BM_FLAG_RLE)
gr_bm_ubitblt02m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
//gr_bm_ubitblt0xm_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
else
gr_bm_ubitblt02m(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
//gr_ubitmapGENERICm(x, y, bm);
return;
case BM_MODEX:
gr_bm_ubitblt01m(bm->bm_w, bm->bm_h, x+XOFFSET, y+YOFFSET, 0, 0, bm, &grd_curcanv->cv_bitmap);
return;
#endif
default:
gr_ubitmap012m( x, y, bm );
return;
}
} else {
gr_ubitmapGENERICm(x, y, bm);
}
}
void gr_bitmapm( int x, int y, grs_bitmap *bm )
{
int dx1=x, dx2=x+bm->bm_w-1;
int dy1=y, dy2=y+bm->bm_h-1;
int sx=0, sy=0;
if ((dx1 >= grd_curcanv->cv_bitmap.bm_w ) || (dx2 < 0)) return;
if ((dy1 >= grd_curcanv->cv_bitmap.bm_h) || (dy2 < 0)) return;
if ( dx1 < 0 ) { sx = -dx1; dx1 = 0; }
if ( dy1 < 0 ) { sy = -dy1; dy1 = 0; }
if ( dx2 >= grd_curcanv->cv_bitmap.bm_w ) { dx2 = grd_curcanv->cv_bitmap.bm_w-1; }
if ( dy2 >= grd_curcanv->cv_bitmap.bm_h ) { dy2 = grd_curcanv->cv_bitmap.bm_h-1; }
// Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
if ( (bm->bm_type == BM_LINEAR) && (grd_curcanv->cv_bitmap.bm_type == BM_LINEAR ))
{
if ( bm->bm_flags & BM_FLAG_RLE )
gr_bm_ubitblt00m_rle(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
else
gr_bm_ubitblt00m(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
return;
}
#ifdef __MSDOS__
else if ( (bm->bm_type == BM_LINEAR) && (grd_curcanv->cv_bitmap.bm_type == BM_SVGA ))
{
gr_bm_ubitblt02m(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
return;
}
#endif
gr_bm_ubitbltm(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
}
void gr_bm_ubitbltm(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
{
register int x1, y1;
ubyte c;
#ifdef OGL
if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_OGL ))
{
ogl_ubitblt(w, h, dx, dy, sx, sy, src, dest);
return;
}
if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_LINEAR ))
{
return;
}
if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_OGL ))
{
return;
}
#endif
for (y1=0; y1 < h; y1++ ) {
for (x1=0; x1 < w; x1++ ) {
if ((c=gr_gpixel(src,sx+x1,sy+y1))!=TRANSPARENCY_COLOR)
gr_bm_pixel( dest, dx+x1, dy+y1,c );
}
}
}
// rescalling bitmaps, 10/14/99 Jan Bobrowski jb@wizard.ae.krakow.pl
inline void scale_line(unsigned char *in, unsigned char *out, int ilen, int olen)
{
int a = olen/ilen, b = olen%ilen;
int c = 0, i;
unsigned char *end = out + olen;
while(out<end) {
i = a;
c += b;
if(c >= ilen) {
c -= ilen;
goto inside;
}
while(--i>=0) {
inside:
*out++ = *in;
}
in++;
}
}
void gr_bitmap_scale_to(grs_bitmap *src, grs_bitmap *dst)
{
unsigned char *s = src->bm_data;
unsigned char *d = dst->bm_data;
int h = src->bm_h;
int a = dst->bm_h/h, b = dst->bm_h%h;
int c = 0, i, y;
for(y=0; y<h; y++) {
i = a;
c += b;
if(c >= h) {
c -= h;
goto inside;
}
while(--i>=0) {
inside:
scale_line(s, d, src->bm_w, dst->bm_w);
d += dst->bm_rowsize;
}
s += src->bm_rowsize;
}
}
void show_fullscr(grs_bitmap *bm)
{
grs_bitmap * const scr = &grd_curcanv->cv_bitmap;
#ifdef OGL
force show_fullscreen to software drawing if image is bigger than screen, showing Automap background in low resolutions via software, removed obsolete robot briefing fix in OGL, code cleanup
2007-02-06 19:23:33 +00:00
if(bm->bm_type == BM_LINEAR && scr->bm_type == BM_OGL &&
bm->bm_w <= grd_curscreen->sc_w && bm->bm_h <= grd_curscreen->sc_h) // only scale with OGL if bitmap is not bigger than screen size
{
added mipmap operator to ogl_bitblt_i, added if to MovieShowFrame to switch off movie mipmap if argument -nomoviesmooth given, added command-line option, added new options to d2x.ini
2006-04-08 15:12:26 +00:00
ogl_ubitblt_i(scr->bm_w,scr->bm_h,0,0,bm->bm_w,bm->bm_h,0,0,bm,scr,0);//use opengl to scale, faster and saves ram. -MPM
initial import
2006-03-20 17:12:09 +00:00
return;
}
#endif
if(scr->bm_type != BM_LINEAR) {
grs_bitmap *tmp = gr_create_bitmap(scr->bm_w, scr->bm_h);
gr_bitmap_scale_to(bm, tmp);
gr_bitmap(0, 0, tmp);
gr_free_bitmap(tmp);
return;
}
gr_bitmap_scale_to(bm, scr);
}
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