forked from KolibriOS/kolibrios
755cc27ea4
2) add function glClear git-svn-id: svn://kolibrios.org@5159 a494cfbc-eb01-0410-851d-a64ba20cac60
567 lines
12 KiB
NASM
567 lines
12 KiB
NASM
;
|
|
;
|
|
; Z buffer: 16 bits Z / 16 bits color
|
|
;
|
|
;
|
|
;include 'zbuffer.inc'
|
|
|
|
;output:
|
|
; eax - указатель на ZBuffer (0 если не удача)
|
|
align 4
|
|
proc ZB_open uses ecx edi, xsize:dword, ysize:dword, mode:dword,\
|
|
nb_colors:dword, color_indexes:dword, color_table:dword, frame_buffer:dword
|
|
|
|
stdcall gl_malloc, sizeof.ZBuffer
|
|
cmp eax,0
|
|
jne @f
|
|
stdcall dbg_print,f_zb_opn,err_1
|
|
jmp .end_f
|
|
@@:
|
|
mov edi,eax
|
|
|
|
mov eax,[ysize]
|
|
mov [edi+offs_zbuf_ysize],eax
|
|
mov eax,[xsize]
|
|
mov [edi+offs_zbuf_xsize],eax
|
|
imul eax,PSZB
|
|
add eax,3
|
|
and eax,not 3
|
|
mov [edi+offs_zbuf_linesize],eax
|
|
mov eax,[mode]
|
|
mov [edi+offs_zbuf_mode],eax
|
|
|
|
if TGL_FEATURE_8_BITS eq 1
|
|
cmp eax,ZB_MODE_INDEX
|
|
jne @f
|
|
;ZB_initDither(edi, nb_colors, color_indexes, color_table);
|
|
jmp .end_s
|
|
@@:
|
|
end if
|
|
if TGL_FEATURE_32_BITS eq 1
|
|
cmp eax,ZB_MODE_RGBA
|
|
je .correct
|
|
end if
|
|
if TGL_FEATURE_24_BITS eq 1
|
|
cmp eax,ZB_MODE_RGB24
|
|
je .correct
|
|
end if
|
|
cmp eax,ZB_MODE_5R6G5B
|
|
jne @f
|
|
.correct:
|
|
mov dword[edi+offs_zbuf_nb_colors],0
|
|
jmp .end_s
|
|
@@: ;default:
|
|
stdcall dbg_print,f_zb_opn,err_3
|
|
jmp .error
|
|
.end_s:
|
|
|
|
mov ecx,[edi+offs_zbuf_xsize]
|
|
imul ecx,[edi+offs_zbuf_ysize]
|
|
shl ecx,1 ;*= sizeof(unsigned short)
|
|
|
|
stdcall gl_malloc, ecx
|
|
mov [edi+offs_zbuf_zbuf],eax
|
|
cmp eax,0
|
|
jne @f
|
|
stdcall dbg_print,f_zb_opn,err_2
|
|
jmp .error
|
|
@@:
|
|
|
|
mov dword[edi+offs_zbuf_frame_buffer_allocated],0
|
|
mov dword[edi+offs_zbuf_pbuf],0 ;NULL
|
|
|
|
mov dword[edi+offs_zbuf_current_texture],0 ;NULL
|
|
|
|
mov eax,edi
|
|
jmp .end_f
|
|
.error:
|
|
stdcall gl_free,edi
|
|
xor eax,eax
|
|
.end_f:
|
|
ret
|
|
endp
|
|
|
|
;void ZB_close(ZBuffer * zb)
|
|
;{
|
|
if TGL_FEATURE_8_BITS eq 1
|
|
; if (zb->mode == ZB_MODE_INDEX)
|
|
; ZB_closeDither(zb);
|
|
end if
|
|
;
|
|
; if (zb->frame_buffer_allocated)
|
|
; gl_free(zb->pbuf);
|
|
;
|
|
; gl_free(zb->zbuf);
|
|
; gl_free(zb);
|
|
;}
|
|
|
|
align 4
|
|
proc ZB_resize uses eax ebx ecx edi esi, zb:dword, frame_buffer:dword, xsize:dword, ysize:dword
|
|
mov ebx,[zb]
|
|
|
|
; xsize must be a multiple of 4
|
|
mov edi,[xsize]
|
|
and edi,not 3
|
|
mov esi,[ysize]
|
|
|
|
mov [ebx+offs_zbuf_xsize], edi
|
|
mov [ebx+offs_zbuf_ysize], esi
|
|
|
|
mov eax,edi
|
|
imul eax,PSZB
|
|
add eax,3
|
|
and eax,not 3
|
|
mov [ebx+offs_zbuf_linesize],eax ;zb.linesize = (xsize * PSZB + 3) & ~3
|
|
|
|
mov ecx,edi
|
|
imul ecx,esi
|
|
shl ecx,1 ;*= sizeof(unsigned short)
|
|
|
|
stdcall gl_free,dword[ebx+offs_zbuf_zbuf]
|
|
stdcall gl_malloc,ecx
|
|
mov [ebx+offs_zbuf_zbuf],eax
|
|
|
|
cmp dword[ebx+offs_zbuf_frame_buffer_allocated],0
|
|
je @f
|
|
stdcall gl_free,dword[ebx+offs_zbuf_pbuf]
|
|
@@:
|
|
|
|
cmp dword[frame_buffer],0
|
|
jne .els_0
|
|
inc esi
|
|
imul esi,dword[ebx+offs_zbuf_linesize]
|
|
stdcall gl_malloc,esi
|
|
mov dword[ebx+offs_zbuf_pbuf],eax
|
|
mov dword[ebx+offs_zbuf_frame_buffer_allocated],1
|
|
jmp @f
|
|
.els_0:
|
|
mov eax,[frame_buffer]
|
|
mov dword[ebx+offs_zbuf_pbuf],eax
|
|
mov dword[ebx+offs_zbuf_frame_buffer_allocated],0
|
|
@@:
|
|
ret
|
|
endp
|
|
|
|
;static void ZB_copyBuffer(ZBuffer * zb,
|
|
; void *buf,
|
|
; int linesize)
|
|
;{
|
|
; unsigned char *p1;
|
|
; PIXEL *q;
|
|
; int y, n;
|
|
;
|
|
; q = zb->pbuf;
|
|
; p1 = buf;
|
|
; n = zb->xsize * PSZB;
|
|
; for (y = 0; y < zb->ysize; y++) {
|
|
; memcpy(p1, q, n);
|
|
; p1 += linesize;
|
|
; q = (PIXEL *) ((char *) q + zb->linesize);
|
|
; }
|
|
;}
|
|
;
|
|
;#if TGL_FEATURE_RENDER_BITS == 16
|
|
|
|
;/* 32 bpp copy */
|
|
|
|
;#ifdef TGL_FEATURE_32_BITS
|
|
|
|
;#define RGB16_TO_RGB32(p0,p1,v)\
|
|
;{\
|
|
; unsigned int g,b,gb;\
|
|
; g = (v & 0x07E007E0) << 5;\
|
|
; b = (v & 0x001F001F) << 3;\
|
|
; gb = g | b;\
|
|
; p0 = (gb & 0x0000FFFF) | ((v & 0x0000F800) << 8);\
|
|
; p1 = (gb >> 16) | ((v & 0xF8000000) >> 8);\
|
|
;}
|
|
|
|
;static void ZB_copyFrameBufferRGB32(ZBuffer * zb,
|
|
; void *buf,
|
|
; int linesize)
|
|
;{
|
|
; unsigned short *q;
|
|
; unsigned int *p, *p1, v, w0, w1;
|
|
; int y, n;
|
|
;
|
|
; q = zb->pbuf;
|
|
; p1 = (unsigned int *) buf;
|
|
;
|
|
; for (y = 0; y < zb->ysize; y++) {
|
|
; p = p1;
|
|
; n = zb->xsize >> 2;
|
|
; do {
|
|
; v = *(unsigned int *) q;
|
|
;#if BYTE_ORDER == BIG_ENDIAN
|
|
; RGB16_TO_RGB32(w1, w0, v);
|
|
;#else
|
|
; RGB16_TO_RGB32(w0, w1, v);
|
|
;#endif
|
|
; p[0] = w0;
|
|
; p[1] = w1;
|
|
;
|
|
; v = *(unsigned int *) (q + 2);
|
|
;#if BYTE_ORDER == BIG_ENDIAN
|
|
; RGB16_TO_RGB32(w1, w0, v);
|
|
;#else
|
|
; RGB16_TO_RGB32(w0, w1, v);
|
|
;#endif
|
|
; p[2] = w0;
|
|
; p[3] = w1;
|
|
;
|
|
; q += 4;
|
|
; p += 4;
|
|
; } while (--n > 0);
|
|
;
|
|
; p1 += linesize;
|
|
; }
|
|
;}
|
|
|
|
;#endif
|
|
|
|
;/* 24 bit packed pixel handling */
|
|
|
|
;#ifdef TGL_FEATURE_24_BITS
|
|
|
|
;/* order: RGBR GBRG BRGB */
|
|
|
|
;/* XXX: packed pixel 24 bit support not tested */
|
|
;/* XXX: big endian case not optimised */
|
|
|
|
;#if BYTE_ORDER == BIG_ENDIAN
|
|
|
|
;#define RGB16_TO_RGB24(p0,p1,p2,v1,v2)\
|
|
;{\
|
|
; unsigned int r1,g1,b1,gb1,g2,b2,gb2;\
|
|
; v1 = (v1 << 16) | (v1 >> 16);\
|
|
; v2 = (v2 << 16) | (v2 >> 16);\
|
|
; r1 = (v1 & 0xF800F800);\
|
|
; g1 = (v1 & 0x07E007E0) << 5;\
|
|
; b1 = (v1 & 0x001F001F) << 3;\
|
|
; gb1 = g1 | b1;\
|
|
; p0 = ((gb1 & 0x0000FFFF) << 8) | (r1 << 16) | (r1 >> 24);\
|
|
; g2 = (v2 & 0x07E007E0) << 5;\
|
|
; b2 = (v2 & 0x001F001F) << 3;\
|
|
; gb2 = g2 | b2;\
|
|
; p1 = (gb1 & 0xFFFF0000) | (v2 & 0xF800) | ((gb2 >> 8) & 0xff);\
|
|
; p2 = (gb2 << 24) | ((v2 & 0xF8000000) >> 8) | (gb2 >> 16);\
|
|
;}
|
|
|
|
;#else
|
|
|
|
;#define RGB16_TO_RGB24(p0,p1,p2,v1,v2)\
|
|
;{\
|
|
; unsigned int r1,g1,b1,gb1,g2,b2,gb2;\
|
|
; r1 = (v1 & 0xF800F800);\
|
|
; g1 = (v1 & 0x07E007E0) << 5;\
|
|
; b1 = (v1 & 0x001F001F) << 3;\
|
|
; gb1 = g1 | b1;\
|
|
; p0 = ((gb1 & 0x0000FFFF) << 8) | (r1 << 16) | (r1 >> 24);\
|
|
; g2 = (v2 & 0x07E007E0) << 5;\
|
|
; b2 = (v2 & 0x001F001F) << 3;\
|
|
; gb2 = g2 | b2;\
|
|
; p1 = (gb1 & 0xFFFF0000) | (v2 & 0xF800) | ((gb2 >> 8) & 0xff);\
|
|
; p2 = (gb2 << 24) | ((v2 & 0xF8000000) >> 8) | (gb2 >> 16);\
|
|
;}
|
|
|
|
;#endif
|
|
|
|
;static void ZB_copyFrameBufferRGB24(ZBuffer * zb,
|
|
; void *buf, int linesize)
|
|
;{
|
|
; unsigned short *q;
|
|
; unsigned int *p, *p1, w0, w1, w2, v0, v1;
|
|
; int y, n;
|
|
;
|
|
; q = zb->pbuf;
|
|
; p1 = (unsigned int *) buf;
|
|
; linesize = linesize * 3;
|
|
;
|
|
; for (y = 0; y < zb->ysize; y++) {
|
|
; p = p1;
|
|
; n = zb->xsize >> 2;
|
|
; do {
|
|
; v0 = *(unsigned int *) q;
|
|
; v1 = *(unsigned int *) (q + 2);
|
|
; RGB16_TO_RGB24(w0, w1, w2, v0, v1);
|
|
; p[0] = w0;
|
|
; p[1] = w1;
|
|
; p[2] = w2;
|
|
|
|
; q += 4;
|
|
; p += 3;
|
|
; } while (--n > 0);
|
|
;
|
|
; (char *) p1 += linesize;
|
|
; }
|
|
;}
|
|
|
|
;#endif
|
|
|
|
;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf,
|
|
; int linesize)
|
|
;{
|
|
; switch (zb->mode) {
|
|
;#ifdef TGL_FEATURE_8_BITS
|
|
; case ZB_MODE_INDEX:
|
|
; ZB_ditherFrameBuffer(zb, buf, linesize >> 1);
|
|
; break;
|
|
;#endif
|
|
;#ifdef TGL_FEATURE_16_BITS
|
|
; case ZB_MODE_5R6G5B:
|
|
; ZB_copyBuffer(zb, buf, linesize);
|
|
; break;
|
|
;#endif
|
|
;#ifdef TGL_FEATURE_32_BITS
|
|
; case ZB_MODE_RGBA:
|
|
; ZB_copyFrameBufferRGB32(zb, buf, linesize >> 1);
|
|
; break;
|
|
;#endif
|
|
;#ifdef TGL_FEATURE_24_BITS
|
|
; case ZB_MODE_RGB24:
|
|
; ZB_copyFrameBufferRGB24(zb, buf, linesize >> 1);
|
|
; break;
|
|
;#endif
|
|
; default:
|
|
; assert(0);
|
|
; }
|
|
;}
|
|
|
|
;#endif /* TGL_FEATURE_RENDER_BITS == 16 */
|
|
|
|
;#if TGL_FEATURE_RENDER_BITS == 24
|
|
|
|
;#define RGB24_TO_RGB16(r, g, b) \
|
|
; ((((r) >> 3) << 11) | (((g) >> 2) << 5) | ((b) >> 3))
|
|
|
|
;/* XXX: not optimized */
|
|
;static void ZB_copyFrameBuffer5R6G5B(ZBuffer * zb,
|
|
; void *buf, int linesize)
|
|
;{
|
|
; PIXEL *q;
|
|
; unsigned short *p, *p1;
|
|
; int y, n;
|
|
;
|
|
; q = zb->pbuf;
|
|
; p1 = (unsigned short *) buf;
|
|
;
|
|
; for (y = 0; y < zb->ysize; y++) {
|
|
; p = p1;
|
|
; n = zb->xsize >> 2;
|
|
; do {
|
|
; p[0] = RGB24_TO_RGB16(q[0], q[1], q[2]);
|
|
; p[1] = RGB24_TO_RGB16(q[3], q[4], q[5]);
|
|
; p[2] = RGB24_TO_RGB16(q[6], q[7], q[8]);
|
|
; p[3] = RGB24_TO_RGB16(q[9], q[10], q[11]);
|
|
; q = (PIXEL *)((char *)q + 4 * PSZB);
|
|
; p += 4;
|
|
; } while (--n > 0);
|
|
; p1 = (unsigned short *)((char *)p1 + linesize);
|
|
; }
|
|
;}
|
|
|
|
;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf,
|
|
; int linesize)
|
|
;{
|
|
; switch (zb->mode) {
|
|
;#ifdef TGL_FEATURE_16_BITS
|
|
; case ZB_MODE_5R6G5B:
|
|
; ZB_copyFrameBuffer5R6G5B(zb, buf, linesize);
|
|
; break;
|
|
;#endif
|
|
;#ifdef TGL_FEATURE_24_BITS
|
|
; case ZB_MODE_RGB24:
|
|
; ZB_copyBuffer(zb, buf, linesize);
|
|
; break;
|
|
;#endif
|
|
; default:
|
|
; assert(0);
|
|
; }
|
|
;}
|
|
|
|
;#endif /* TGL_FEATURE_RENDER_BITS == 24 */
|
|
|
|
;#if TGL_FEATURE_RENDER_BITS == 32
|
|
|
|
;#define RGB32_TO_RGB16(v) \
|
|
; (((v >> 8) & 0xf800) | (((v) >> 5) & 0x07e0) | (((v) & 0xff) >> 3))
|
|
|
|
;/* XXX: not optimized */
|
|
;static void ZB_copyFrameBuffer5R6G5B(ZBuffer * zb,
|
|
; void *buf, int linesize)
|
|
;{
|
|
; PIXEL *q;
|
|
; unsigned short *p, *p1;
|
|
; int y, n;
|
|
;
|
|
; q = zb->pbuf;
|
|
; p1 = (unsigned short *) buf;
|
|
;
|
|
; for (y = 0; y < zb->ysize; y++) {
|
|
; p = p1;
|
|
; n = zb->xsize >> 2;
|
|
; do {
|
|
; p[0] = RGB32_TO_RGB16(q[0]);
|
|
; p[1] = RGB32_TO_RGB16(q[1]);
|
|
; p[2] = RGB32_TO_RGB16(q[2]);
|
|
; p[3] = RGB32_TO_RGB16(q[3]);
|
|
; q += 4;
|
|
; p += 4;
|
|
; } while (--n > 0);
|
|
; p1 = (unsigned short *)((char *)p1 + linesize);
|
|
; }
|
|
;}
|
|
;
|
|
;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf,
|
|
; int linesize)
|
|
;{
|
|
; switch (zb->mode) {
|
|
;#ifdef TGL_FEATURE_16_BITS
|
|
; case ZB_MODE_5R6G5B:
|
|
; ZB_copyFrameBuffer5R6G5B(zb, buf, linesize);
|
|
; break;
|
|
;#endif
|
|
;#ifdef TGL_FEATURE_32_BITS
|
|
; case ZB_MODE_RGBA:
|
|
; ZB_copyBuffer(zb, buf, linesize);
|
|
; break;
|
|
;#endif
|
|
; default:
|
|
; assert(0);
|
|
; }
|
|
;}
|
|
;
|
|
;#endif /* TGL_FEATURE_RENDER_BITS == 32 */
|
|
|
|
|
|
;
|
|
; adr must be aligned on an 'int'
|
|
;
|
|
align 4
|
|
proc memset_s uses eax ecx edi, adr:dword, val:dword, count:dword
|
|
mov eax,[val]
|
|
mov di,ax
|
|
ror eax,16
|
|
mov ax,di
|
|
mov ecx,[count]
|
|
shr ecx,1
|
|
mov edi,[adr]
|
|
rep stosd
|
|
|
|
bt dword[count],0
|
|
jnc @f
|
|
stosw
|
|
@@:
|
|
ret
|
|
endp
|
|
|
|
align 4
|
|
proc memset_l uses eax ecx edi, adr:dword, val:dword, count:dword
|
|
mov eax,[val]
|
|
mov ecx,[count]
|
|
mov edi,[adr]
|
|
rep stosd
|
|
ret
|
|
endp
|
|
|
|
; count must be a multiple of 4 and >= 4
|
|
align 4
|
|
proc memset_RGB24 uses eax ecx edi esi, adr:dword, r:dword, g:dword, b:dword, count:dword
|
|
mov esi,[adr]
|
|
mov eax,[r] ;копируем в буфер первые 12 байт (минимальное число кратное 3 и 4)
|
|
mov byte[esi],al
|
|
mov byte[esi+3],al
|
|
mov byte[esi+6],al
|
|
mov byte[esi+9],al
|
|
mov eax,[g]
|
|
mov byte[esi+1],al
|
|
mov byte[esi+4],al
|
|
mov byte[esi+7],al
|
|
mov byte[esi+10],al
|
|
mov eax,[b]
|
|
mov byte[esi+2],al
|
|
mov byte[esi+5],al
|
|
mov byte[esi+8],al
|
|
mov byte[esi+11],al
|
|
|
|
mov ecx,[count]
|
|
shr ecx,2
|
|
cmp ecx,1
|
|
jle .end_f ;если ширина буфера меньше 12 байт, то выходим
|
|
dec ecx
|
|
mov edi,esi
|
|
add edi,12
|
|
|
|
mov eax,[esi]
|
|
cmp eax,[esi+4]
|
|
jne @f
|
|
;если r=g и g=b и b=r
|
|
mov esi,ecx
|
|
shl ecx,2
|
|
sub ecx,esi ;ecx*=3
|
|
rep stosd
|
|
jmp .end_f
|
|
@@:
|
|
|
|
;если r!=g или g!=b или b!=r
|
|
@@:
|
|
movsd
|
|
movsd
|
|
movsd
|
|
sub esi,12
|
|
loop @b
|
|
.end_f:
|
|
ret
|
|
endp
|
|
|
|
align 4
|
|
proc ZB_clear uses eax ebx ecx, zb:dword, clear_z:dword, z:dword, clear_color:dword,\
|
|
r:dword, g:dword, b:dword
|
|
;if TGL_FEATURE_RENDER_BITS != 24
|
|
; color dd ?
|
|
;end if
|
|
|
|
mov eax,[zb]
|
|
cmp dword[clear_z],0
|
|
je @f
|
|
mov ebx,[eax+offs_zbuf_xsize]
|
|
imul ebx,[eax+offs_zbuf_ysize]
|
|
stdcall memset_s, [eax+offs_zbuf_zbuf],[z],ebx
|
|
@@:
|
|
cmp dword[clear_color],0
|
|
je @f
|
|
if TGL_FEATURE_RENDER_BITS eq 24
|
|
mov ebx,[eax+offs_zbuf_xsize]
|
|
push ebx
|
|
mov ebx,[b]
|
|
shr ebx,8
|
|
push ebx
|
|
mov ebx,[g]
|
|
shr ebx,8
|
|
push ebx
|
|
mov ebx,[r]
|
|
shr ebx,8
|
|
push ebx
|
|
add esp,16
|
|
end if
|
|
mov ebx,[eax+offs_zbuf_pbuf]
|
|
mov ecx,[eax+offs_zbuf_ysize]
|
|
.cycle_0:
|
|
if (TGL_FEATURE_RENDER_BITS eq 15) ;or (TGL_FEATURE_RENDER_BITS eq 16)
|
|
;color = RGB_TO_PIXEL(r, g, b);
|
|
;memset_s(ebx, color, zb->xsize);
|
|
end if
|
|
if TGL_FEATURE_RENDER_BITS eq 32
|
|
;color = RGB_TO_PIXEL(r, g, b);
|
|
;memset_l(ebx, color, zb->xsize);
|
|
end if
|
|
if TGL_FEATURE_RENDER_BITS eq 24
|
|
sub esp,16
|
|
stdcall memset_RGB24,ebx
|
|
end if
|
|
add ebx,[eax+offs_zbuf_linesize]
|
|
loop .cycle_0
|
|
@@:
|
|
ret
|
|
endp
|