diff options
Diffstat (limited to 'src/mesa/drivers/dos')
| -rw-r--r-- | src/mesa/drivers/dos/blit.S | 1040 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/dmesa.c | 359 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/dpmi.c | 166 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/internal.h | 105 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/null.c | 224 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/null.h | 41 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/vesa.c | 719 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/vesa.h | 65 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/vga.c | 289 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/vga.h | 42 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/video.c | 442 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/video.h | 56 |
12 files changed, 3548 insertions, 0 deletions
diff --git a/src/mesa/drivers/dos/blit.S b/src/mesa/drivers/dos/blit.S new file mode 100644 index 0000000000..02dc8400d8 --- /dev/null +++ b/src/mesa/drivers/dos/blit.S @@ -0,0 +1,1040 @@ +/* + * Mesa 3-D graphics library + * Version: 4.0 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@yahoo.com + * Web : http://www.geocities.com/dborca + */ + + + .file "blit.S" + +/* + * extern unsigned int vesa_gran_mask, vesa_gran_shift; + * extern int vl_video_selector; + + * extern void *vl_current_draw_buffer; + * extern int vl_current_stride, vl_current_height; + * extern int vl_current_offset, vl_current_delta; + */ + + .text + +/* Desc: VESA bank switching routine (BIOS) + * + * In : EBX=0, EDX = bank number + * Out : - + * + * Note: thrashes EAX + */ + .p2align 5,,31 +_vesa_swbankBIOS: + movw $0x4f05, %ax + int $0x10 + ret + + .p2align 2,,3 + .global _vesa_swbank +_vesa_swbank: .long _vesa_swbankBIOS + +/* Desc: void vesa_b_dump_virtual (void); + * + * In : - + * Out : - + * + * Note: uses current draw buffer + */ + .p2align 5,,31 + .global _vesa_b_dump_virtual +_vesa_b_dump_virtual: + cld + pushl %es + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl _vl_video_selector, %es + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vesa_gran_shift, %ecx + movl _vesa_gran_mask, %ebp + movl %edi, %edx + xorl %ebx, %ebx + andl %ebp, %edi + shrl %cl, %edx + incl %ebp + call *_vesa_swbank + movl _vl_current_stride, %ecx + movl _vl_current_height, %eax + movl _vl_current_delta, %ebx + shrl $2, %ecx + .balign 4 + 0: + pushl %ecx + .balign 4 + 1: + cmpl %ebp, %edi + jb 2f + pushl %eax + pushl %ebx + incl %edx + xorl %ebx, %ebx + call *_vesa_swbank + popl %ebx + popl %eax + subl %ebp, %edi + .balign 4 + 2: + movsl + decl %ecx + jnz 1b + popl %ecx + addl %ebx, %edi + decl %eax + jnz 0b + popl %ebp + popl %edi + popl %esi + popl %ebx + popl %es + ret + +/* Desc: void vesa_l_dump_virtual (void); + * + * In : - + * Out : - + * + * Note: uses current draw buffer + */ + .p2align 5,,31 + .global _vesa_l_dump_virtual +_vesa_l_dump_virtual: + cld + pushl %es + pushl %esi + pushl %edi + movl _vl_video_selector, %es + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %eax + shrl $2, %ecx + .balign 4 + 0: + pushl %ecx + rep; movsl + popl %ecx + addl %eax, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + popl %es + ret + +/* Desc: void vesa_l_dump_virtual_mmx (void); + * + * In : - + * Out : - + * + * Note: uses current draw buffer + */ + .p2align 5,,31 + .global _vesa_l_dump_virtual_mmx +_vesa_l_dump_virtual_mmx: +#ifdef USE_MMX_ASM + pushl %esi + pushl %edi + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %eax + shrl $3, %ecx + .balign 4 + 0: + pushl %ecx + .balign 4 + 1: + movq (%esi), %mm0 + addl $8, %esi + movq %mm0, %fs:(%edi) + addl $8, %edi + decl %ecx + jnz 1b + popl %ecx + addl %eax, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + emms +#endif + ret + + + +#define CVT_32_TO_16(s, tmp) \ + /* SRC = bbbbbbbbggggggggrrrrrrrr******** */\ + movl %e##s##x, %tmp ;\ + /* TMP = bbbbbbbbggggggggrrrrrrrr******** */\ + shrb $2, %s##h ;\ + /* SRC = bbbbbbbbgggggg00rrrrrrrr******** */\ + andl $0xF80000, %tmp ;\ + /* TMP = 0000000000000000000rrrrr00000000 */\ + shrw $3, %s##x ;\ + /* SRC = bbbbbgggggg00000rrrrrrrr******** */\ + shrl $8, %tmp ;\ + /* TMP = 00000000000rrrrr0000000000000000 */\ + orl %tmp, %e##s##x ;\ + /* SRC = bbbbbggggggrrrrrrrrrrrrr******** */ + +#define CVT_32_TO_15(s, tmp) \ + /* SRC = bbbbbbbbggggggggrrrrrrrr******** */\ + movl %e##s##x, %tmp ;\ + /* TMP = bbbbbbbbggggggggrrrrrrrr******** */\ + shrb $3, %s##h ;\ + /* SRC = bbbbbbbbgggggg00rrrrrrrr******** */\ + andl $0xF80000, %tmp ;\ + /* TMP = 0000000000000000000rrrrr00000000 */\ + shrw $3, %s##x ;\ + /* SRC = bbbbbgggggg00000rrrrrrrr******** */\ + shrl $9, %tmp ;\ + /* TMP = 00000000000rrrrr0000000000000000 */\ + orl %tmp, %e##s##x ;\ + /* SRC = bbbbbggggggrrrrrrrrrrrrr******** */ + +#define CVT_16_TO_15(src, tmp) \ + /* SRC = bbbbbggggggrrrrrBBBBBGGGGGGRRRRR */\ + movl %src, %tmp ;\ + /* TMP = bbbbbggggggrrrrrBBBBBGGGGGGRRRRR */\ + andl $0x1F001F, %src ;\ + /* SRC = bbbbb00000000000BBBBB00000000000 */\ + andl $0xFFC0FFC0, %tmp ;\ + /* TMP = 000000gggggrrrrr000000GGGGGRRRRR */\ + shrl %tmp ;\ + /* TMP = 00000gggggrrrrr000000GGGGGRRRRR0 */\ + orl %tmp, %src ;\ + /* SRC = bbbbbgggggrrrrr0BBBBBGGGGGRRRRR0 */\ + + + +/* transform BGRA to BGR */ + .p2align 5,,31 + .global _vesa_l_dump_32_to_24 +_vesa_l_dump_32_to_24: + pushl %ebx + pushl %esi + pushl %edi + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %ecx + 1: + movl (%esi), %eax + addl $4, %esi + movw %ax, %fs:(%edi) + shrl $16, %eax + movb %al, %fs:2(%edi) + addl $3, %edi + subl $3, %ecx + jnz 1b + popl %ecx + addl %ebx, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + popl %ebx + ret + +/* transform BGRA to B5G6R5 */ + .p2align 5,,31 + .global _vesa_l_dump_32_to_16 +_vesa_l_dump_32_to_16: + pushl %ebp + pushl %ebx + pushl %esi + pushl %edi + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %ecx + 1: + movl (%esi), %eax + addl $4, %esi + CVT_32_TO_16(a, ebp) + movw %ax, %fs:(%edi) + addl $2, %edi + subl $2, %ecx + jnz 1b + popl %ecx + addl %ebx, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + popl %ebx + popl %ebp + ret + +/* transform BGRA to B5G5R5 */ + .p2align 5,,31 + .global _vesa_l_dump_32_to_15 +_vesa_l_dump_32_to_15: + pushl %ebp + pushl %ebx + pushl %esi + pushl %edi + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %ecx + 1: + movl (%esi), %eax + addl $4, %esi + CVT_32_TO_15(a, ebp) + movw %ax, %fs:(%edi) + addl $2, %edi + subl $2, %ecx + jnz 1b + popl %ecx + addl %ebx, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + popl %ebx + popl %ebp + ret + +/* transform BGRA to fake8 */ + .p2align 5,,31 + .global _vesa_l_dump_32_to_8 +_vesa_l_dump_32_to_8: + pushl %ebp + pushl %ebx + pushl %esi + pushl %edi + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %edx + pushl %ecx + pushl %ebx + 1: + movl (%esi), %eax + addl $4, %esi +#if 1 + xorl %ebx, %ebx + movl %eax, %edx + movb %ah, %bl + shrl $16, %edx + andl $0xFF, %edx + andl $0xFF, %eax + + movb _array_b(%eax), %al + movb _array_r(%edx), %dl + movb _array_g(%ebx), %bl + + imull $36, %eax + imull $6, %ebx + addl %edx, %eax + addl %ebx, %eax +#endif + movb %al, %fs:(%edi) + incl %edi + decl %ecx + jnz 1b + popl %ebx + popl %ecx + popl %edx + addl %ebx, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + popl %ebx + popl %ebp + ret + +/* transform BGR to BGRx */ + .p2align 5,,31 + .global _vesa_l_dump_24_to_32 +_vesa_l_dump_24_to_32: + pushl %ebx + pushl %esi + pushl %edi + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %ecx + 1: + movl (%esi), %eax + addl $3, %esi + movl %eax, %fs:(%edi) + addl $4, %edi + subl $4, %ecx + jnz 1b + popl %ecx + addl %ebx, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + popl %ebx + ret + +/* transform BGR to fake8 */ + .p2align 5,,31 + .global _vesa_l_dump_24_to_8 +_vesa_l_dump_24_to_8: + pushl %ebp + pushl %ebx + pushl %esi + pushl %edi + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %edx + pushl %ecx + pushl %ebx + 1: + movl (%esi), %eax + addl $3, %esi +#if 1 + xorl %ebx, %ebx + movl %eax, %edx + movb %ah, %bl + shrl $16, %edx + andl $0xFF, %edx + andl $0xFF, %eax + + movb _array_b(%eax), %al + movb _array_r(%edx), %dl + movb _array_g(%ebx), %bl + + imull $36, %eax + imull $6, %ebx + addl %edx, %eax + addl %ebx, %eax +#endif + movb %al, %fs:(%edi) + incl %edi + decl %ecx + jnz 1b + popl %ebx + popl %ecx + popl %edx + addl %ebx, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + popl %ebx + popl %ebp + ret + +/* transform B5G6R5 to B5G5R5 */ + .p2align 5,,31 + .global _vesa_l_dump_16_to_15 +_vesa_l_dump_16_to_15: + pushl %ebp + pushl %ebx + pushl %esi + pushl %edi + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %ecx + 1: + movl (%esi), %eax + addl $4, %esi + CVT_16_TO_15(eax, ebp) + movl %eax, %fs:(%edi) + addl $4, %edi + subl $4, %ecx + jnz 1b + popl %ecx + addl %ebx, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + popl %ebx + popl %ebp + ret + +/* transform B5G6R5 to fake8 */ + .p2align 5,,31 + .global _vesa_l_dump_16_to_8 +_vesa_l_dump_16_to_8: + pushl %ebp + pushl %ebx + pushl %esi + pushl %edi + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vl_current_stride, %ecx + movl _vl_current_height, %edx + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %ecx + pushl %ebx + 1: + movl (%esi), %eax + addl $4, %esi +#if 1 + movl %eax, %ebx + andl $0xFFFF, %eax + shrl $16, %ebx + movb _tab_16_8(%eax), %al + movb _tab_16_8(%ebx), %ah +#endif + movw %ax, %fs:(%edi) + addl $2, %edi + subl $2, %ecx + jnz 1b + popl %ebx + popl %ecx + addl %ebx, %edi + decl %edx + jnz 0b + popl %edi + popl %esi + popl %ebx + popl %ebp + ret + + + + .p2align 5,,31 + .global _vesa_b_dump_32_to_24 +_vesa_b_dump_32_to_24: + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vesa_gran_shift, %ecx + movl _vesa_gran_mask, %ebp + movl %edi, %edx + xorl %ebx, %ebx + andl %ebp, %edi + shrl %cl, %edx + incl %ebp + call *_vesa_swbank + movl _vl_current_stride, %ecx + movl _vl_current_height, %eax + movl $0x00FFFFFF, %ebx + .balign 4 + 0: + pushl %eax + pushl %ecx + .balign 4 + 1: + cmpl %ebp, %edi + jb 2f + pushl %ebx + incl %edx + xorl %ebx, %ebx + call *_vesa_swbank + popl %ebx + subl %ebp, %edi + .balign 4 + 2: + movb (%esi), %al /* XXX too many accesses */ + incl %esi + rorl $8, %ebx + jnc 2b + movb %al, %fs:(%edi) + incl %edi + decl %ecx + jnz 1b + popl %ecx + popl %eax + addl _vl_current_delta, %edi + decl %eax + jnz 0b + popl %ebp + popl %edi + popl %esi + popl %ebx + ret + + .p2align 5,,31 + .global _vesa_b_dump_32_to_16 +_vesa_b_dump_32_to_16: + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vesa_gran_shift, %ecx + movl _vesa_gran_mask, %ebp + movl %edi, %edx + xorl %ebx, %ebx + andl %ebp, %edi + shrl %cl, %edx + incl %ebp + call *_vesa_swbank + movl _vl_current_stride, %ecx + movl _vl_current_height, %eax + .balign 4 + 0: + pushl %eax + pushl %ecx + .balign 4 + 1: + cmpl %ebp, %edi + jb 2f + incl %edx + xorl %ebx, %ebx + call *_vesa_swbank + subl %ebp, %edi + .balign 4 + 2: + movl (%esi), %eax + addl $4, %esi + CVT_32_TO_16(a, ebx) + movw %ax, %fs:(%edi) + addl $2, %edi + subl $2, %ecx + jnz 1b + popl %ecx + popl %eax + addl _vl_current_delta, %edi + decl %eax + jnz 0b + popl %ebp + popl %edi + popl %esi + popl %ebx + ret + + .p2align 5,,31 + .global _vesa_b_dump_32_to_15 +_vesa_b_dump_32_to_15: + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vesa_gran_shift, %ecx + movl _vesa_gran_mask, %ebp + movl %edi, %edx + xorl %ebx, %ebx + andl %ebp, %edi + shrl %cl, %edx + incl %ebp + call *_vesa_swbank + movl _vl_current_stride, %ecx + movl _vl_current_height, %eax + .balign 4 + 0: + pushl %eax + pushl %ecx + .balign 4 + 1: + cmpl %ebp, %edi + jb 2f + incl %edx + xorl %ebx, %ebx + call *_vesa_swbank + subl %ebp, %edi + .balign 4 + 2: + movl (%esi), %eax + addl $4, %esi + CVT_32_TO_15(a, ebx) + movw %ax, %fs:(%edi) + addl $2, %edi + subl $2, %ecx + jnz 1b + popl %ecx + popl %eax + addl _vl_current_delta, %edi + decl %eax + jnz 0b + popl %ebp + popl %edi + popl %esi + popl %ebx + ret + + .p2align 5,,31 + .global _vesa_b_dump_32_to_8 +_vesa_b_dump_32_to_8: + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vesa_gran_shift, %ecx + movl _vesa_gran_mask, %ebp + movl %edi, %edx + xorl %ebx, %ebx + andl %ebp, %edi + shrl %cl, %edx + incl %ebp + call *_vesa_swbank + movl _vl_current_stride, %ecx + movl _vl_current_height, %eax + .balign 4 + 0: + pushl %eax + pushl %ecx + pushl %edx + .balign 4 + 1: + cmpl %ebp, %edi + jb 2f + popl %edx + incl %edx + pushl %edx + xorl %ebx, %ebx + call *_vesa_swbank + subl %ebp, %edi + .balign 4 + 2: + movl (%esi), %eax + addl $4, %esi +#if 1 + xorl %ebx, %ebx + movl %eax, %edx + movb %ah, %bl + shrl $16, %edx + andl $0xFF, %edx + andl $0xFF, %eax + + movb _array_b(%eax), %al + movb _array_r(%edx), %dl + movb _array_g(%ebx), %bl + + imull $36, %eax + imull $6, %ebx + addl %edx, %eax + addl %ebx, %eax +#endif + movb %al, %fs:(%edi) + incl %edi + decl %ecx + jnz 1b + popl %edx + popl %ecx + popl %eax + addl _vl_current_delta, %edi + decl %eax + jnz 0b + popl %ebp + popl %edi + popl %esi + popl %ebx + ret + + .p2align 5,,31 + .global _vesa_b_dump_24_to_32 +_vesa_b_dump_24_to_32: + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vesa_gran_shift, %ecx + movl _vesa_gran_mask, %ebp + movl %edi, %edx + xorl %ebx, %ebx + andl %ebp, %edi + shrl %cl, %edx + incl %ebp + call *_vesa_swbank + movl _vl_current_stride, %ecx + movl _vl_current_height, %eax + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %eax + pushl %ecx + .balign 4 + 1: + cmpl %ebp, %edi + jb 2f + pushl %ebx + incl %edx + xorl %ebx, %ebx + call *_vesa_swbank + popl %ebx + subl %ebp, %edi + .balign 4 + 2: + movl (%esi), %eax + addl $3, %esi + movl %eax, %fs:(%edi) + addl $4, %edi + subl $4, %ecx + jnz 1b + popl %ecx + popl %eax + addl %ebx, %edi + decl %eax + jnz 0b + popl %ebp + popl %edi + popl %esi + popl %ebx + ret + + .p2align 5,,31 + .global _vesa_b_dump_24_to_8 +_vesa_b_dump_24_to_8: + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vesa_gran_shift, %ecx + movl _vesa_gran_mask, %ebp + movl %edi, %edx + xorl %ebx, %ebx + andl %ebp, %edi + shrl %cl, %edx + incl %ebp + call *_vesa_swbank + movl _vl_current_stride, %ecx + movl _vl_current_height, %eax + .balign 4 + 0: + pushl %eax + pushl %ecx + pushl %edx + .balign 4 + 1: + cmpl %ebp, %edi + jb 2f + popl %edx + incl %edx + pushl %edx + xorl %ebx, %ebx + call *_vesa_swbank + subl %ebp, %edi + .balign 4 + 2: + movl (%esi), %eax + addl $3, %esi +#if 1 + xorl %ebx, %ebx + movl %eax, %edx + movb %ah, %bl + shrl $16, %edx + andl $0xFF, %edx + andl $0xFF, %eax + + movb _array_b(%eax), %al + movb _array_r(%edx), %dl + movb _array_g(%ebx), %bl + + imull $36, %eax + imull $6, %ebx + addl %edx, %eax + addl %ebx, %eax +#endif + movb %al, %fs:(%edi) + incl %edi + decl %ecx + jnz 1b + popl %edx + popl %ecx + popl %eax + addl _vl_current_delta, %edi + decl %eax + jnz 0b + popl %ebp + popl %edi + popl %esi + popl %ebx + ret + + .p2align 5,,31 + .global _vesa_b_dump_16_to_15 +_vesa_b_dump_16_to_15: + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vesa_gran_shift, %ecx + movl _vesa_gran_mask, %ebp + movl %edi, %edx + xorl %ebx, %ebx + andl %ebp, %edi + shrl %cl, %edx + incl %ebp + call *_vesa_swbank + movl _vl_current_stride, %ecx + movl _vl_current_height, %eax + .balign 4 + 0: + pushl %eax + pushl %ecx + .balign 4 + 1: + cmpl %ebp, %edi + jb 2f + incl %edx + xorl %ebx, %ebx + call *_vesa_swbank + subl %ebp, %edi + .balign 4 + 2: + movw (%esi), %ax + addl $2, %esi + CVT_16_TO_15(eax, ebx) + movw %ax, %fs:(%edi) + addl $2, %edi + subl $2, %ecx + jnz 1b + popl %ecx + popl %eax + addl _vl_current_delta, %edi + decl %eax + jnz 0b + popl %ebp + popl %edi + popl %esi + popl %ebx + ret + + .p2align 5,,31 + .global _vesa_b_dump_16_to_8 +_vesa_b_dump_16_to_8: + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl _vl_video_selector, %fs + movl _vl_current_draw_buffer, %esi + movl _vl_current_offset, %edi + movl _vesa_gran_shift, %ecx + movl _vesa_gran_mask, %ebp + movl %edi, %edx + xorl %ebx, %ebx + andl %ebp, %edi + shrl %cl, %edx + incl %ebp + call *_vesa_swbank + movl _vl_current_stride, %ecx + movl _vl_current_height, %eax + movl _vl_current_delta, %ebx + .balign 4 + 0: + pushl %eax + pushl %ecx + .balign 4 + 1: + cmpl %ebp, %edi + jb 2f + pushl %ebx + incl %edx + xorl %ebx, %ebx + call *_vesa_swbank + popl %ebx + subl %ebp, %edi + .balign 4 + 2: + movw (%esi), %ax + addl $2, %esi +#if 1 + andl $0xFFFF, %eax + movb _tab_16_8(%eax), %al +#endif + movb %al, %fs:(%edi) + addl $1, %edi + subl $1, %ecx + jnz 1b + popl %ecx + popl %eax + addl %ebx, %edi + decl %eax + jnz 0b + popl %ebp + popl %edi + popl %esi + popl %ebx + ret diff --git a/src/mesa/drivers/dos/dmesa.c b/src/mesa/drivers/dos/dmesa.c new file mode 100644 index 0000000000..ee87e63852 --- /dev/null +++ b/src/mesa/drivers/dos/dmesa.c @@ -0,0 +1,359 @@ +/* + * Mesa 3-D graphics library + * Version: 6.3 + * + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@users.sourceforge.net + * Web : http://www.geocities.com/dborca + */ + + +#include "context.h" +#include "imports.h" +#include "mtypes.h" + +#include "video.h" + +#include "GL/osmesa.h" +#include "GL/dmesa.h" + + +/* + * This has nothing to do with Mesa Visual structure. + * We keep this one around for backwards compatibility, + * and to store video mode data for DMesaCreateContext. + */ +struct dmesa_visual { + GLenum format; /* OSMesa framebuffer format */ + GLint depthBits; + GLint stencilBits; + GLint accumBits; +}; + +/* + * This has nothing to do with Mesa Buffer structure. + * We keep this one around for backwards compatibility, + * and to store various data. + */ +struct dmesa_buffer { + int xpos, ypos; /* position */ + int width, height; /* size in pixels */ + GLenum type; + void *the_window; /* your window handle, etc */ +}; + +/* + * This has nothing to do with Mesa Context structure. + * We keep this one around for backwards compatibility, + * and to store real off-screen context. + */ +struct dmesa_context { + OSMesaContext osmesa; + DMesaBuffer buffer; +}; + + +static DMesaContext ctx; + + +/**************************************************************************** + * DMesa Public API Functions + ***************************************************************************/ + +/* + * The exact arguments to this function will depend on your window system + */ +DMesaVisual +DMesaCreateVisual (GLint width, + GLint height, + GLint colDepth, + GLint refresh, + GLboolean dbFlag, + GLboolean rgbFlag, + GLint alphaSize, + GLint depthSize, + GLint stencilSize, + GLint accumSize) +{ + DMesaVisual visual; + GLenum format; + int fbbits; + + if (dbFlag) { + return NULL; + } + + if (!rgbFlag) { + format = OSMESA_COLOR_INDEX; + fbbits = 8; + } else if (alphaSize) { + format = OSMESA_BGRA; + fbbits = 32; + } else if (colDepth == 15 || colDepth == 16) { + format = OSMESA_RGB_565; + fbbits = 16; + } else { + format = OSMESA_BGR; + fbbits = 24; + } + + if ((visual = (DMesaVisual)CALLOC_STRUCT(dmesa_visual)) == NULL) { + return NULL; + } + + if (vl_video_init(width, height, colDepth, rgbFlag, refresh, fbbits) <= 0) { + FREE(visual); + return NULL; + } + + visual->format = format; + visual->depthBits = depthSize; + visual->stencilBits = stencilSize; + visual->accumBits = accumSize; + return visual; +} + + +void +DMesaDestroyVisual (DMesaVisual visual) +{ + vl_video_exit(); + FREE(visual); +} + + +DMesaBuffer +DMesaCreateBuffer (DMesaVisual visual, + GLint xpos, GLint ypos, + GLint width, GLint height) +{ + DMesaBuffer buffer; + GLenum type; + int bytesPerPixel; + + switch (visual->format) { + case OSMESA_COLOR_INDEX: + bytesPerPixel = 1; + type = CHAN_TYPE; + break; + case OSMESA_RGB_565: + bytesPerPixel = 2; + type = GL_UNSIGNED_SHORT_5_6_5; + break; + case OSMESA_BGR: + bytesPerPixel = 3; + type = CHAN_TYPE; + break; + default: + bytesPerPixel = 4; + type = CHAN_TYPE; + } + + if ((buffer = (DMesaBuffer)CALLOC_STRUCT(dmesa_buffer)) != NULL) { + buffer->xpos = xpos; + buffer->ypos = ypos; + buffer->width = width; + buffer->height = height; + buffer->type = type; + buffer->the_window = MALLOC(width * height * bytesPerPixel + 1); + if (buffer->the_window == NULL) { + FREE(buffer); + buffer = NULL; + } + } + + return buffer; +} + + +void +DMesaDestroyBuffer (DMesaBuffer buffer) +{ + FREE(buffer->the_window); + FREE(buffer); +} + + +DMesaContext +DMesaCreateContext (DMesaVisual visual, DMesaContext share) +{ + DMesaContext dmesa; + if ((dmesa = (DMesaContext)CALLOC_STRUCT(dmesa_context)) != NULL) { + dmesa->osmesa = OSMesaCreateContextExt( + visual->format, + visual->depthBits, + visual->stencilBits, + visual->accumBits, + (share != NULL) ? share->osmesa : NULL); + if (dmesa->osmesa == NULL) { + FREE(dmesa); + dmesa = NULL; + } + } + return dmesa; +} + + +void +DMesaDestroyContext (DMesaContext dmesa) +{ + OSMesaDestroyContext(dmesa->osmesa); + FREE(dmesa); +} + + +GLboolean +DMesaMoveBuffer (GLint xpos, GLint ypos) +{ + const DMesaContext dmesa = DMesaGetCurrentContext(); + DMesaBuffer b = dmesa->buffer; + + if (vl_sync_buffer(&b->the_window, xpos, ypos, b->width, b->height) == 0) { + b->xpos = xpos; + b->ypos = ypos; + return GL_TRUE; + } + + return GL_FALSE; +} + + +GLboolean +DMesaResizeBuffer (GLint width, GLint height) +{ + const DMesaContext dmesa = DMesaGetCurrentContext(); + DMesaBuffer b = dmesa->buffer; + + if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, width, height) == 0) { + b->width = width; + b->height = height; + return GL_TRUE; + } + + return GL_FALSE; +} + + +GLboolean +DMesaMakeCurrent (DMesaContext dmesa, DMesaBuffer buffer) +{ + if (dmesa == NULL || buffer == NULL) { + ctx = NULL; + return GL_TRUE; + } + if (OSMesaMakeCurrent(dmesa->osmesa, buffer->the_window, + buffer->type, + buffer->width, buffer->height) && + vl_sync_buffer(&buffer->the_window, buffer->xpos, buffer->ypos, buffer->width, buffer->height) == 0) { + OSMesaPixelStore(OSMESA_Y_UP, GL_FALSE); + dmesa->buffer = buffer; + ctx = dmesa; + return GL_TRUE; + } + return GL_FALSE; +} + + +void +DMesaSwapBuffers (DMesaBuffer buffer) +{ + /* copy/swap back buffer to front if applicable */ + GET_CURRENT_CONTEXT(ctx); + _mesa_notifySwapBuffers(ctx); + vl_flip(); + (void)buffer; +} + + +void +DMesaSetCI (int ndx, GLfloat red, GLfloat green, GLfloat blue) +{ + vl_setCI(ndx, red, green, blue); +} + + +DMesaContext +DMesaGetCurrentContext (void) +{ + return ctx; +} + + +DMesaBuffer +DMesaGetCurrentBuffer (void) +{ + const DMesaContext dmesa = DMesaGetCurrentContext(); + + if (dmesa != NULL) { + return dmesa->buffer; + } + + return NULL; +} + + +DMesaProc +DMesaGetProcAddress (const char *name) +{ + DMesaProc p = (DMesaProc)_glapi_get_proc_address(name); + + /* TODO: handle DMesa* namespace + if (p == NULL) { + } + */ + + return p; +} + + +int +DMesaGetIntegerv (GLenum pname, GLint *params) +{ + switch (pname) { + case DMESA_GET_SCREEN_SIZE: + vl_get(VL_GET_SCREEN_SIZE, params); + break; + case DMESA_GET_DRIVER_CAPS: + params[0] = 0; + break; + case DMESA_GET_VIDEO_MODES: + return vl_get(VL_GET_VIDEO_MODES, params); + case DMESA_GET_BUFFER_ADDR: { + const DMesaContext dmesa = DMesaGetCurrentContext(); + if (dmesa != NULL) { + DMesaBuffer b = dmesa->buffer; + if (b != NULL) { + params[0] = (GLint)b->the_window; + } + } + break; + } + default: + return -1; + } + + return 0; +} diff --git a/src/mesa/drivers/dos/dpmi.c b/src/mesa/drivers/dos/dpmi.c new file mode 100644 index 0000000000..bd33b8856c --- /dev/null +++ b/src/mesa/drivers/dos/dpmi.c @@ -0,0 +1,166 @@ +/* + * Mesa 3-D graphics library + * Version: 4.0 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@yahoo.com + * Web : http://www.geocities.com/dborca + */ + + +#include <dpmi.h> + +#include "internal.h" + + +#ifndef MAX +#define MAX(x, y) (((x) < (y)) ? (y) : (x)) +#endif + + +/* _create_linear_mapping: + * Maps a physical address range into linear memory. + */ +int +_create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size) +{ + __dpmi_meminfo meminfo; + + if (physaddr >= 0x100000) { + /* map into linear memory */ + meminfo.address = physaddr; + meminfo.size = size; + if (__dpmi_physical_address_mapping(&meminfo) != 0) { + return -1; + } + + *linear = meminfo.address; + } else { + /* exploit 1 -> 1 physical to linear mapping in low megabyte */ + *linear = physaddr; + } + + return 0; +} + + +/* _remove_linear_mapping: + * Frees the DPMI resources being used to map a linear address range. + */ +void +_remove_linear_mapping (unsigned long *linear) +{ + __dpmi_meminfo meminfo; + + if (*linear) { + if (*linear >= 0x100000) { + meminfo.address = *linear; + __dpmi_free_physical_address_mapping(&meminfo); + } + + *linear = 0; + } +} + + +/* _create_selector: + * Allocates a selector to access a region of linear memory. + */ +int +_create_selector (int *segment, unsigned long base, int size) +{ + /* allocate an ldt descriptor */ + if ((*segment=__dpmi_allocate_ldt_descriptors(1)) < 0) { + *segment = 0; + return -1; + } + + /* create the linear mapping */ + if (_create_linear_mapping(&base, base, size)) { + __dpmi_free_ldt_descriptor(*segment); + *segment = 0; + return -1; + } + + /* set the descriptor base and limit */ + __dpmi_set_segment_base_address(*segment, base); + __dpmi_set_segment_limit(*segment, MAX(size-1, 0xFFFF)); + + return 0; +} + + +/* _remove_selector: + * Frees a DPMI segment selector. + */ +void +_remove_selector (int *segment) +{ + if (*segment) { + unsigned long base; + __dpmi_get_segment_base_address(*segment, &base); + _remove_linear_mapping(&base); + __dpmi_free_ldt_descriptor(*segment); + *segment = 0; + } +} + + +/* Desc: retrieve CPU MMX capability + * + * In : - + * Out : FALSE if CPU cannot do MMX + * + * Note: - + */ +int +_can_mmx (void) +{ +#ifdef USE_MMX_ASM + int x86_cpu_features = 0; + __asm("\n\ + pushfl \n\ + popl %%eax \n\ + movl %%eax, %%ecx \n\ + xorl $0x200000, %%eax\n\ + pushl %%eax \n\ + popfl \n\ + pushfl \n\ + popl %%eax \n\ + pushl %%ecx \n\ + popfl \n\ + xorl %%ecx, %%eax \n\ + jz 0f \n\ + movl $1, %%eax \n\ + cpuid \n\ + movl %%edx, %0 \n\ + 0: \n\ + ":"=g"(x86_cpu_features)::"%eax", "%ebx", "%ecx", "%edx"); + return (x86_cpu_features & 0x00800000); +#else + return 0; +#endif +} diff --git a/src/mesa/drivers/dos/internal.h b/src/mesa/drivers/dos/internal.h new file mode 100644 index 0000000000..0fa7c77222 --- /dev/null +++ b/src/mesa/drivers/dos/internal.h @@ -0,0 +1,105 @@ +/* + * Mesa 3-D graphics library + * Version: 4.0 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@users.sourceforge.net + * Web : http://www.geocities.com/dborca + */ + + +#ifndef INTERNAL_H_included +#define INTERNAL_H_included + +#include "../main/mtypes.h" + + +/* + * general purpose defines, etc. + */ +#ifndef FALSE +#define FALSE 0 +#define TRUE !FALSE +#endif + +#define __PACKED__ __attribute__((packed)) + +typedef unsigned char word8; +typedef unsigned short word16; +typedef unsigned long word32; + +#define _16_ *(word16 *)& +#define _32_ *(word32 *)& + +typedef void (*BLTFUNC) (void); + + +/* + * video mode structure + */ +typedef struct vl_mode { + int xres, yres; + int bpp; + + int mode; + int scanlen; + + int sel; + int gran; +} vl_mode; + + +/* + * video driver structure + */ +typedef struct { + vl_mode *(*init) (void); + int (*entermode) (vl_mode *p, int refresh, int fbbits); + void (*blit) (void); + void (*setCI_f) (int index, float red, float green, float blue); + void (*setCI_i) (int index, int red, int green, int blue); + int (*get) (int pname, int *params); + void (*restore) (void); + void (*fini) (void); +} vl_driver; + + +/* + * memory mapping + */ +int _create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size); +void _remove_linear_mapping (unsigned long *linear); +int _create_selector (int *segment, unsigned long base, int size); +void _remove_selector (int *segment); + + +/* + * system routines + */ +int _can_mmx (void); + + +#endif diff --git a/src/mesa/drivers/dos/null.c b/src/mesa/drivers/dos/null.c new file mode 100644 index 0000000000..55846299fb --- /dev/null +++ b/src/mesa/drivers/dos/null.c @@ -0,0 +1,224 @@ +/* + * Mesa 3-D graphics library + * Version: 4.1 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@users.sourceforge.net + * Web : http://www.geocities.com/dborca + */ + + +#include <stdlib.h> +#include <sys/segments.h> + +#include "video.h" +#include "null.h" + + +static vl_mode *modes; + +#define null_color_precision 8 + + +static void +null_blit_nop (void) +{ +} + + +/* Desc: Attempts to detect NUL, check video modes and create selectors. + * + * In : - + * Out : mode array + * + * Note: - + */ +static vl_mode * +null_init (void) +{ + static int m[][2] = { + { 320, 200 }, + { 320, 240 }, + { 400, 300 }, + { 512, 384 }, + { 640, 400 }, + { 640, 480 }, + { 800, 600 }, + { 1024, 768 }, + { 1280, 1024 }, + { 1600, 1200 } + }; + static int b[] = { + 8, + 15, + 16, + 24, + 32 + }; + const unsigned int m_count = sizeof(m) / sizeof(m[0]); + const unsigned int b_count = sizeof(b) / sizeof(b[0]); + + unsigned int i, j, k; + + if (modes == NULL) { + modes = malloc(sizeof(vl_mode) * (1 + m_count * b_count)); + + if (modes != NULL) { + for (k = 0, i = 0; i < m_count; i++) { + for (j = 0; j < b_count; j++, k++) { + modes[k].xres = m[i][0]; + modes[k].yres = m[i][1]; + modes[k].bpp = b[j]; + modes[k].mode = 0x4000; + modes[k].scanlen = m[i][0] * ((b[j] + 7) / 8); + modes[k].sel = -1; + modes[k].gran = -1; + } + } + modes[k].xres = -1; + modes[k].yres = -1; + modes[k].bpp = -1; + modes[k].mode = 0xffff; + modes[k].scanlen = -1; + modes[k].sel = -1; + modes[k].gran = -1; + } + } + + return modes; +} + + +/* Desc: Frees all resources allocated by NUL init code. + * + * In : - + * Out : - + * + * Note: - + */ +static void +null_fini (void) +{ + if (modes != NULL) { + free(modes); + modes = NULL; + } +} + + +/* Desc: Attempts to enter specified video mode. + * + * In : ptr to mode structure, refresh rate + * Out : 0 if success + * + * Note: - + */ +static int +null_entermode (vl_mode *p, int refresh, int fbbits) +{ + NUL.blit = null_blit_nop; + + return 0; + + (void)(p && refresh && fbbits); /* silence compiler warning */ +} + + +/* Desc: Restores to the mode prior to first call to null_entermode. + * + * In : - + * Out : - + * + * Note: - + */ +static void +null_restore (void) +{ +} + + +/* Desc: set one palette entry + * + * In : color index, R, G, B + * Out : - + * + * Note: uses integer values + */ +static void +null_setCI_i (int index, int red, int green, int blue) +{ + (void)(index && red && green && blue); /* silence compiler warning */ +} + + +/* Desc: set one palette entry + * + * In : color index, R, G, B + * Out : - + * + * Note: uses normalized values + */ +static void +null_setCI_f (int index, float red, float green, float blue) +{ + float max = (1 << null_color_precision) - 1; + + null_setCI_i(index, (int)(red * max), (int)(green * max), (int)(blue * max)); +} + + +/* Desc: state retrieval + * + * In : parameter name, ptr to storage + * Out : 0 if request successfully processed + * + * Note: - + */ +static int +null_get (int pname, int *params) +{ + switch (pname) { + default: + params[0] = params[0]; /* silence compiler warning */ + return -1; + } + return 0; +} + + +/* + * the driver + */ +vl_driver NUL = { + null_init, + null_entermode, + NULL, + null_setCI_f, + null_setCI_i, + null_get, + null_restore, + null_fini +}; diff --git a/src/mesa/drivers/dos/null.h b/src/mesa/drivers/dos/null.h new file mode 100644 index 0000000000..bbdc7966e0 --- /dev/null +++ b/src/mesa/drivers/dos/null.h @@ -0,0 +1,41 @@ +/* + * Mesa 3-D graphics library + * Version: 4.0 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@yahoo.com + * Web : http://www.geocities.com/dborca + */ + + +#ifndef NULL_H_included +#define NULL_H_included + +#include "internal.h" + +extern vl_driver NUL; + +#endif diff --git a/src/mesa/drivers/dos/vesa.c b/src/mesa/drivers/dos/vesa.c new file mode 100644 index 0000000000..3fdd3e25db --- /dev/null +++ b/src/mesa/drivers/dos/vesa.c @@ -0,0 +1,719 @@ +/* + * Mesa 3-D graphics library + * Version: 4.1 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@users.sourceforge.net + * Web : http://www.geocities.com/dborca + */ + + +#include <dpmi.h> +#include <pc.h> +#include <stdlib.h> +#include <stubinfo.h> +#include <sys/exceptn.h> +#include <sys/segments.h> +#include <sys/farptr.h> +#include <sys/movedata.h> + +#include "video.h" +#include "vesa.h" + + +static vl_mode modes[128]; + +static word16 vesa_ver; +static int banked_selector, linear_selector; +static int oldmode = -1; + +static int vesa_color_precision = 6; + +static word16 *vesa_pmcode; +unsigned int vesa_gran_mask, vesa_gran_shift; + + +/* + * VESA info + */ +#define V_SIGN 0 +#define V_MINOR 4 +#define V_MAJOR 5 +#define V_OEM_OFS 6 +#define V_OEM_SEG 8 +#define V_MODE_OFS 14 +#define V_MODE_SEG 16 +#define V_MEMORY 18 + +/* + * mode info + */ +#define M_ATTR 0 +#define M_GRAN 4 +#define M_SCANLEN 16 +#define M_XRES 18 +#define M_YRES 20 +#define M_BPP 25 +#define M_RED 31 +#define M_GREEN 33 +#define M_BLUE 35 +#define M_PHYS_PTR 40 + +/* + * VESA 3.0 CRTC timings structure + */ +typedef struct CRTCInfoBlock { + unsigned short HorizontalTotal; + unsigned short HorizontalSyncStart; + unsigned short HorizontalSyncEnd; + unsigned short VerticalTotal; + unsigned short VerticalSyncStart; + unsigned short VerticalSyncEnd; + unsigned char Flags; + unsigned long PixelClock; /* units of Hz */ + unsigned short RefreshRate; /* units of 0.01 Hz */ + unsigned char reserved[40]; +} __PACKED__ CRTCInfoBlock; + +#define HNEG (1 << 2) +#define VNEG (1 << 3) +#define DOUBLESCAN (1 << 0) + + +/* Desc: Attempts to detect VESA, check video modes and create selectors. + * + * In : - + * Out : mode array + * + * Note: - + */ +static vl_mode * +vesa_init (void) +{ + __dpmi_regs r; + word16 *p; + vl_mode *q; + char vesa_info[512], tmp[512]; + int maxsize = 0; + word32 linearfb = 0; + + if (vesa_ver) { + return modes; + } + + _farpokel(_stubinfo->ds_selector, 0, 0x32454256); + r.x.ax = 0x4f00; + r.x.di = 0; + r.x.es = _stubinfo->ds_segment; + __dpmi_int(0x10, &r); + movedata(_stubinfo->ds_selector, 0, _my_ds(), (unsigned)vesa_info, 512); + if ((r.x.ax != 0x004f) || ((_32_ vesa_info[V_SIGN]) != 0x41534556)) { + return NULL; + } + + p = (word16 *)(((_16_ vesa_info[V_MODE_SEG]) << 4) + (_16_ vesa_info[V_MODE_OFS])); + q = modes; + do { + if ((q->mode = _farpeekw(__djgpp_dos_sel, (unsigned long)(p++))) == 0xffff) { + break; + } + + r.x.ax = 0x4f01; + r.x.cx = q->mode; + r.x.di = 512; + r.x.es = _stubinfo->ds_segment; + __dpmi_int(0x10, &r); + movedata(_stubinfo->ds_selector, 512, _my_ds(), (unsigned)tmp, 256); + switch (tmp[M_BPP]) { + case 16: + q->bpp = tmp[M_RED] + tmp[M_GREEN] + tmp[M_BLUE]; + break; + case 8: + case 15: + case 24: + case 32: + q->bpp = tmp[M_BPP]; + break; + default: + q->bpp = 0; + } + if ((r.x.ax == 0x004f) && ((tmp[M_ATTR] & 0x11) == 0x11) && q->bpp) { + q->xres = _16_ tmp[M_XRES]; + q->yres = _16_ tmp[M_YRES]; + q->scanlen = _16_ tmp[M_SCANLEN]; + q->gran = (_16_ tmp[M_GRAN]) << 10; + if (tmp[M_ATTR] & 0x80) { + vl_mode *q1 = q + 1; + *q1 = *q++; + linearfb = _32_ tmp[M_PHYS_PTR]; + q->mode |= 0x4000; + } + if (maxsize < (q->scanlen * q->yres)) { + maxsize = q->scanlen * q->yres; + } + q++; + } + } while (TRUE); + + if (q == modes) { + return NULL; + } + if (_create_selector(&banked_selector, 0xa0000, modes[0].gran)) { + return NULL; + } + if (linearfb) { + maxsize = ((maxsize + 0xfffUL) & ~0xfffUL); + if (_create_selector(&linear_selector, linearfb, maxsize)) { + linear_selector = banked_selector; + } + } + + for (q = modes; q->mode != 0xffff; q++) { + q->sel = banked_selector; + if (q->mode & 0x4000) { + if (linear_selector != banked_selector) { + q->sel = linear_selector; + } else { + q->mode &= ~0x4000; + } + } + } + + if (vesa_info[V_MAJOR] >= 2) { + r.x.ax = 0x4f0a; + r.x.bx = 0; + __dpmi_int(0x10, &r); + if (r.x.ax == 0x004f) { + vesa_pmcode = (word16 *)malloc(r.x.cx); + if (vesa_pmcode != NULL) { + movedata(__djgpp_dos_sel, (r.x.es << 4) + r.x.di, _my_ds(), (unsigned)vesa_pmcode, r.x.cx); + if (vesa_pmcode[3]) { + p = (word16 *)((long)vesa_pmcode + vesa_pmcode[3]); + while (*p++ != 0xffff) { + } + } else { + p = NULL; + } + if (p && (*p != 0xffff)) { + free(vesa_pmcode); + vesa_pmcode = NULL; + } else { + vesa_swbank = (void *)((long)vesa_pmcode + vesa_pmcode[0]); + } + } + } + } + + vesa_ver = _16_ vesa_info[V_MINOR]; + return modes; +} + + +/* Desc: Frees all resources allocated by VESA init code. + * + * In : - + * Out : - + * + * Note: - + */ +static void +vesa_fini (void) +{ + if (vesa_ver) { + _remove_selector(&linear_selector); + _remove_selector(&banked_selector); + if (vesa_pmcode != NULL) { + free(vesa_pmcode); + vesa_pmcode = NULL; + } + } +} + + +/* Desc: Uses VESA 3.0 function 0x4F0B to find the closest pixel clock to the requested value. + * + * In : mode, clock + * Out : desired clock + * + * Note: - + */ +static unsigned long +_closest_pixclk (int mode_no, unsigned long vclk) +{ + __dpmi_regs r; + + r.x.ax = 0x4F0B; + r.h.bl = 0; + r.d.ecx = vclk; + r.x.dx = mode_no; + __dpmi_int(0x10, &r); + + return (r.x.ax == 0x004f) ? r.d.ecx : 0; +} + + +/* Desc: Calculates CRTC mode timings. + * + * In : crtc block, geometry, adjust + * Out : + * + * Note: + */ +static void +_crtc_timing (CRTCInfoBlock *crtc, int xres, int yres, int xadjust, int yadjust) +{ + int HTotal, VTotal; + int HDisp, VDisp; + int HSS, VSS; + int HSE, VSE; + int HSWidth, VSWidth; + int SS, SE; + int doublescan = FALSE; + + if (yres < 400) { + doublescan = TRUE; + yres *= 2; + } + + HDisp = xres; + HTotal = (int)(HDisp * 1.27) & ~0x7; + HSWidth = (int)((HTotal - HDisp) / 5) & ~0x7; + HSS = HDisp + 16; + HSE = HSS + HSWidth; + VDisp = yres; + VTotal = VDisp * 1.07; + VSWidth = (VTotal / 100) + 1; + VSS = VDisp + ((int)(VTotal - VDisp) / 5) + 1; + VSE = VSS + VSWidth; + + SS = HSS + xadjust; + SE = HSE + xadjust; + + if (xadjust < 0) { + if (SS < (HDisp + 8)) { + SS = HDisp + 8; + SE = SS + HSWidth; + } + } else { + if ((HTotal - 24) < SE) { + SE = HTotal - 24; + SS = SE - HSWidth; + } + } + + HSS = SS; + HSE = SE; + + SS = VSS + yadjust; + SE = VSE + yadjust; + + if (yadjust < 0) { + if (SS < (VDisp + 3)) { + SS = VDisp + 3; + SE = SS + VSWidth; + } + } else { + if ((VTotal - 4) < SE) { + SE = VTotal - 4; + SS = SE - VSWidth; + } + } + + VSS = SS; + VSE = SE; + + crtc->HorizontalTotal = HTotal; + crtc->HorizontalSyncStart = HSS; + crtc->HorizontalSyncEnd = HSE; + crtc->VerticalTotal = VTotal; + crtc->VerticalSyncStart = VSS; + crtc->VerticalSyncEnd = VSE; + crtc->Flags = HNEG | VNEG; + + if (doublescan) { + crtc->Flags |= DOUBLESCAN; + } +} + + +/* Desc: Attempts to choose a suitable blitter. + * + * In : ptr to mode structure, software framebuffer bits + * Out : blitter funciton, or NULL + * + * Note: - + */ +static BLTFUNC +_choose_blitter (vl_mode *p, int fbbits) +{ + BLTFUNC blitter; + + if (p->mode & 0x4000) { + blitter = _can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual; + switch (p->bpp) { + case 8: + switch (fbbits) { + case 8: + break; + case 16: + blitter = vesa_l_dump_16_to_8; + break; + case 24: + blitter = vesa_l_dump_24_to_8; + break; + case 32: + blitter = vesa_l_dump_32_to_8; + break; + case 15: + default: + return NULL; + } + break; + case 15: + switch (fbbits) { + case 16: + blitter = vesa_l_dump_16_to_15; + break; + case 32: + blitter = vesa_l_dump_32_to_15; + break; + case 8: + case 15: + case 24: + default: + return NULL; + } + break; + case 16: + switch (fbbits) { + case 16: + break; + case 32: + blitter = vesa_l_dump_32_to_16; + break; + case 8: + case 15: + case 24: + default: + return NULL; + } + break; + case 24: + switch (fbbits) { + case 24: + break; + case 32: + blitter = vesa_l_dump_32_to_24; + break; + case 8: + case 15: + case 16: + default: + return NULL; + } + break; + case 32: + switch (fbbits) { + case 24: + blitter = vesa_l_dump_24_to_32; + break; + case 32: + break; + case 8: + case 15: + case 16: + default: + return NULL; + } + break; + } + } else { + blitter = vesa_b_dump_virtual; + switch (p->bpp) { + case 8: + switch (fbbits) { + case 8: + break; + case 16: + blitter = vesa_b_dump_16_to_8; + break; + case 24: + blitter = vesa_b_dump_24_to_8; + break; + case 32: + blitter = vesa_b_dump_32_to_8; + break; + case 15: + default: + return NULL; + } + break; + case 15: + switch (fbbits) { + case 16: + blitter = vesa_b_dump_16_to_15; + break; + case 32: + blitter = vesa_b_dump_32_to_15; + break; + case 8: + case 15: + case 24: + default: + return NULL; + } + break; + case 16: + switch (fbbits) { + case 16: + break; + case 32: + blitter = vesa_b_dump_32_to_16; + break; + case 8: + case 15: + case 24: + default: + return NULL; + } + break; + case 24: + switch (fbbits) { + case 24: + break; + case 32: + blitter = vesa_b_dump_32_to_24; + break; + case 8: + case 15: + case 16: + default: + return NULL; + } + break; + case 32: + switch (fbbits) { + case 24: + blitter = vesa_b_dump_24_to_32; + break; + case 32: + break; + case 8: + case 15: + case 16: + default: + return NULL; + } + break; + } + } + + return blitter; +} + + +/* Desc: Attempts to enter specified video mode. + * + * In : ptr to mode structure, refresh rate + * Out : 0 if success + * + * Note: - + */ +static int +vesa_entermode (vl_mode *p, int refresh, int fbbits) +{ + __dpmi_regs r; + + if (!(p->mode & 0x4000)) { + { int n; for (vesa_gran_shift = 0, n = p->gran; n; vesa_gran_shift++, n >>= 1); } + vesa_gran_mask = (1 << (--vesa_gran_shift)) - 1; + if ((unsigned)p->gran != (vesa_gran_mask + 1)) { + return !0; + } + } + + VESA.blit = _choose_blitter(p, fbbits); + if (VESA.blit == NULL) { + return !0; + } + + if (oldmode == -1) { + r.x.ax = 0x4f03; + __dpmi_int(0x10, &r); + oldmode = r.x.bx; + } + + r.x.ax = 0x4f02; + r.x.bx = p->mode; + + if (refresh && ((vesa_ver >> 8) >= 3)) { + /* VESA 3.0 stuff for controlling the refresh rate */ + CRTCInfoBlock crtc; + unsigned long vclk; + double f0; + + _crtc_timing(&crtc, p->xres, p->yres, 0, 0); + + vclk = (double)crtc.HorizontalTotal * crtc.VerticalTotal * refresh; + vclk = _closest_pixclk(p->mode, vclk); + + if (vclk != 0) { + f0 = (double)vclk / (crtc.HorizontalTotal * crtc.VerticalTotal); + /*_current_refresh_rate = (int)(f0 + 0.5);*/ + + crtc.PixelClock = vclk; + crtc.RefreshRate = refresh * 100; + + movedata(_my_ds(), (unsigned)&crtc, _stubinfo->ds_selector, 0, sizeof(crtc)); + + r.x.di = 0; + r.x.es = _stubinfo->ds_segment; + r.x.bx |= 0x0800; + } + } + + __dpmi_int(0x10, &r); + if (r.x.ax != 0x004f) { + return !0; + } + + if (p->bpp == 8) { + r.x.ax = 0x4f08; + r.x.bx = 0x0800; + __dpmi_int(0x10, &r); + if (r.x.ax == 0x004f) { + r.x.ax = 0x4f08; + r.h.bl = 0x01; + __dpmi_int(0x10, &r); + vesa_color_precision = r.h.bh; + } + } + + return 0; +} + + +/* Desc: Restores to the mode prior to first call to vesa_entermode. + * + * In : - + * Out : - + * + * Note: - + */ +static void +vesa_restore (void) +{ + __dpmi_regs r; + + if (oldmode != -1) { + if (oldmode < 0x100) { + __asm("int $0x10"::"a"(oldmode)); + } else { + r.x.ax = 0x4f02; + r.x.bx = oldmode; + __dpmi_int(0x10, &r); + } + oldmode = -1; + } +} + + +/* Desc: set one palette entry + * + * In : color index, R, G, B + * Out : - + * + * Note: uses integer values + */ +static void +vesa_setCI_i (int index, int red, int green, int blue) +{ +#if 0 + __asm("\n\ + movw $0x1010, %%ax \n\ + movb %1, %%dh \n\ + movb %2, %%ch \n\ + int $0x10 \n\ + "::"b"(index), "m"(red), "m"(green), "c"(blue):"%eax", "%edx"); +#else + outportb(0x03C8, index); + outportb(0x03C9, red); + outportb(0x03C9, green); + outportb(0x03C9, blue); +#endif +} + + +/* Desc: set one palette entry + * + * In : color index, R, G, B + * Out : - + * + * Note: uses normalized values + */ +static void +vesa_setCI_f (int index, float red, float green, float blue) +{ + float max = (1 << vesa_color_precision) - 1; + + vesa_setCI_i(index, (int)(red * max), (int)(green * max), (int)(blue * max)); +} + + +/* Desc: state retrieval + * + * In : parameter name, ptr to storage + * Out : 0 if request successfully processed + * + * Note: - + */ +static int +vesa_get (int pname, int *params) +{ + switch (pname) { + case VL_GET_CI_PREC: + params[0] = vesa_color_precision; + break; + default: + return -1; + } + return 0; +} + + +/* + * the driver + */ +vl_driver VESA = { + vesa_init, + vesa_entermode, + NULL, + vesa_setCI_f, + vesa_setCI_i, + vesa_get, + vesa_restore, + vesa_fini +}; diff --git a/src/mesa/drivers/dos/vesa.h b/src/mesa/drivers/dos/vesa.h new file mode 100644 index 0000000000..4b3c3ab832 --- /dev/null +++ b/src/mesa/drivers/dos/vesa.h @@ -0,0 +1,65 @@ +/* + * Mesa 3-D graphics library + * Version: 4.0 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@yahoo.com + * Web : http://www.geocities.com/dborca + */ + + +#ifndef VESA_H_included +#define VESA_H_included + +#include "internal.h" + +extern void *vesa_swbank; + +extern void vesa_b_dump_virtual (void); +extern void vesa_l_dump_virtual (void); +extern void vesa_l_dump_virtual_mmx (void); + +extern void vesa_l_dump_32_to_24 (void); +extern void vesa_l_dump_32_to_16 (void); +extern void vesa_l_dump_32_to_15 (void); +extern void vesa_l_dump_32_to_8 (void); +extern void vesa_l_dump_24_to_32 (void); +extern void vesa_l_dump_24_to_8 (void); +extern void vesa_l_dump_16_to_15 (void); +extern void vesa_l_dump_16_to_8 (void); + +extern void vesa_b_dump_32_to_24 (void); +extern void vesa_b_dump_32_to_16 (void); +extern void vesa_b_dump_32_to_15 (void); +extern void vesa_b_dump_32_to_8 (void); +extern void vesa_b_dump_24_to_32 (void); +extern void vesa_b_dump_24_to_8 (void); +extern void vesa_b_dump_16_to_15 (void); +extern void vesa_b_dump_16_to_8 (void); + +extern vl_driver VESA; + +#endif diff --git a/src/mesa/drivers/dos/vga.c b/src/mesa/drivers/dos/vga.c new file mode 100644 index 0000000000..5a6447dd87 --- /dev/null +++ b/src/mesa/drivers/dos/vga.c @@ -0,0 +1,289 @@ +/* + * Mesa 3-D graphics library + * Version: 4.1 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@users.sourceforge.net + * Web : http://www.geocities.com/dborca + */ + + +#include <pc.h> +#include <stdlib.h> + +#include "video.h" +#include "vga.h" + + +static vl_mode modes[] = { + { + /* .xres = */ 320, + /* .yres = */ 200, + /* .bpp = */ 8, + /* .mode = */ 0x13 | 0x4000, + /* .scanlen = */ 320, + /* .sel = */ -1, + /* .gran = */ 320*200 + }, + { + /* .xres = */ -1, + /* .yres = */ -1, + /* .bpp = */ -1, + /* .mode = */ 0xffff, + /* .scanlen = */ -1, + /* .sel = */ -1, + /* .gran = */ -1 + } +}; + +static word16 vga_ver; +static int linear_selector; +static int oldmode = -1; + +#define vga_color_precision 6 + + +/* Desc: Attempts to detect VGA, check video modes and create selectors. + * + * In : - + * Out : mode array + * + * Note: - + */ +static vl_mode * +vga_init (void) +{ + int rv = 0; + + if (vga_ver) { + return modes; + } + + __asm("\n\ + movw $0x1a00, %%ax \n\ + int $0x10 \n\ + cmpb $0x1a, %%al \n\ + jne 0f \n\ + cmpb $0x07, %%bl \n\ + jb 0f \n\ + andl $0xff, %%ebx \n\ + movl %%ebx, %0 \n\ + 0:":"=g"(rv)::"%eax", "%ebx"); + if (rv == 0) { + return NULL; + } + + if (_create_selector(&linear_selector, 0xa0000, 0x10000)) { + return NULL; + } + + modes[0].sel = linear_selector; + + vga_ver = rv; + return modes; +} + + +/* Desc: Frees all resources allocated by VGA init code. + * + * In : - + * Out : - + * + * Note: - + */ +static void +vga_fini (void) +{ + if (vga_ver) { + _remove_selector(&linear_selector); + } +} + + +/* Desc: Attempts to choose a suitable blitter. + * + * In : ptr to mode structure, software framebuffer bits + * Out : blitter funciton, or NULL + * + * Note: - + */ +static BLTFUNC +_choose_blitter (vl_mode *p, int fbbits) +{ + BLTFUNC blitter; + + switch (fbbits) { + case 8: + blitter = _can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual; + break; + case 16: + blitter = vesa_l_dump_16_to_8; + break; + case 24: + blitter = vesa_l_dump_24_to_8; + break; + case 32: + blitter = vesa_l_dump_32_to_8; + break; + default: + return NULL; + } + + return blitter; + + (void)p; +} + + +/* Desc: Attempts to enter specified video mode. + * + * In : ptr to mode structure, refresh rate + * Out : 0 if success + * + * Note: - + */ +static int +vga_entermode (vl_mode *p, int refresh, int fbbits) +{ + if (!(p->mode & 0x4000)) { + return -1; + } + + VGA.blit = _choose_blitter(p, fbbits); + if (VGA.blit == NULL) { + return !0; + } + + if (oldmode == -1) { + __asm("\n\ + movb $0x0f, %%ah \n\ + int $0x10 \n\ + andl $0xff, %%eax \n\ + movl %%eax, %0 \n\ + ":"=g"(oldmode)::"%eax", "%ebx"); + } + + __asm("int $0x10"::"a"(p->mode&0xff)); + + return 0; + + (void)refresh; /* silence compiler warning */ +} + + +/* Desc: Restores to the mode prior to first call to vga_entermode. + * + * In : - + * Out : - + * + * Note: - + */ +static void +vga_restore (void) +{ + if (oldmode != -1) { + __asm("int $0x10"::"a"(oldmode)); + oldmode = -1; + } +} + + +/* Desc: set one palette entry + * + * In : color index, R, G, B + * Out : - + * + * Note: uses integer values + */ +static void +vga_setCI_i (int index, int red, int green, int blue) +{ +#if 0 + __asm("\n\ + movw $0x1010, %%ax \n\ + movb %1, %%dh \n\ + movb %2, %%ch \n\ + int $0x10 \n\ + "::"b"(index), "m"(red), "m"(green), "c"(blue):"%eax", "%edx"); +#else + outportb(0x03C8, index); + outportb(0x03C9, red); + outportb(0x03C9, green); + outportb(0x03C9, blue); +#endif +} + + +/* Desc: set one palette entry + * + * In : color index, R, G, B + * Out : - + * + * Note: uses normalized values + */ +static void +vga_setCI_f (int index, float red, float green, float blue) +{ + float max = (1 << vga_color_precision) - 1; + + vga_setCI_i(index, (int)(red * max), (int)(green * max), (int)(blue * max)); +} + + +/* Desc: state retrieval + * + * In : parameter name, ptr to storage + * Out : 0 if request successfully processed + * + * Note: - + */ +static int +vga_get (int pname, int *params) +{ + switch (pname) { + case VL_GET_CI_PREC: + params[0] = vga_color_precision; + break; + default: + return -1; + } + return 0; +} + + +/* + * the driver + */ +vl_driver VGA = { + vga_init, + vga_entermode, + NULL, + vga_setCI_f, + vga_setCI_i, + vga_get, + vga_restore, + vga_fini +}; diff --git a/src/mesa/drivers/dos/vga.h b/src/mesa/drivers/dos/vga.h new file mode 100644 index 0000000000..7c17625a3c --- /dev/null +++ b/src/mesa/drivers/dos/vga.h @@ -0,0 +1,42 @@ +/* + * Mesa 3-D graphics library + * Version: 4.0 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@yahoo.com + * Web : http://www.geocities.com/dborca + */ + + +#ifndef VGA_H_included +#define VGA_H_included + +#include "internal.h" +#include "vesa.h" + +extern vl_driver VGA; + +#endif diff --git a/src/mesa/drivers/dos/video.c b/src/mesa/drivers/dos/video.c new file mode 100644 index 0000000000..468207fbf6 --- /dev/null +++ b/src/mesa/drivers/dos/video.c @@ -0,0 +1,442 @@ +/* + * Mesa 3-D graphics library + * Version: 4.0 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@users.sourceforge.net + * Web : http://www.geocities.com/dborca + * + * Thanks to CrazyPyro (Neil Funk) for FakeColor + */ + + +#include <stdlib.h> + +#include "internal.h" +#include "vesa.h" +#include "vga.h" +#include "null.h" +#include "video.h" + + +static vl_driver *drv; +/* based upon mode specific data: valid entire session */ +int vl_video_selector; +static vl_mode *video_mode; +static int video_scanlen, video_bypp; +/* valid until next buffer */ +void *vl_current_draw_buffer, *vl_current_read_buffer; +int vl_current_stride, vl_current_width, vl_current_height, vl_current_bytes; +int vl_current_offset, vl_current_delta; + + +void (*vl_flip) (void); + + +/* FakeColor data */ +#define R_CNT 6 +#define G_CNT 6 +#define B_CNT 6 + +#define R_BIAS 7 +#define G_BIAS 7 +#define B_BIAS 7 + +static word32 VGAPalette[256]; +word8 array_r[256]; +word8 array_g[256]; +word8 array_b[256]; +word8 tab_16_8[0x10000]; + + +/* lookup table for scaling 5 bit colors up to 8 bits */ +static int _rgb_scale_5[32] = { + 0, 8, 16, 25, 33, 41, 49, 58, + 66, 74, 82, 90, 99, 107, 115, 123, + 132, 140, 148, 156, 165, 173, 181, 189, + 197, 206, 214, 222, 230, 239, 247, 255 +}; + +/* lookup table for scaling 6 bit colors up to 8 bits */ +static int _rgb_scale_6[64] = { + 0, 4, 8, 12, 16, 20, 24, 28, + 32, 36, 40, 45, 49, 53, 57, 61, + 65, 69, 73, 77, 81, 85, 89, 93, + 97, 101, 105, 109, 113, 117, 121, 125, + 130, 134, 138, 142, 146, 150, 154, 158, + 162, 166, 170, 174, 178, 182, 186, 190, + 194, 198, 202, 206, 210, 215, 219, 223, + 227, 231, 235, 239, 243, 247, 251, 255 +}; + + +/* Desc: color composition (w/o ALPHA) + * + * In : array of integers (R, G, B) + * Out : color + * + * Note: - + */ +static int +v_mixrgb8fake (const unsigned char rgb[]) +{ + return array_b[rgb[2]]*G_CNT*R_CNT + + array_g[rgb[1]]*R_CNT + + array_r[rgb[0]]; +} + + +/* Desc: color decomposition + * + * In : pixel offset, array of integers to hold color components (R, G, B, A) + * Out : - + * + * Note: uses current read buffer + */ +static void +v_getrgb8fake6 (unsigned int offset, unsigned char rgb[]) +{ + word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]]; + rgb[0] = _rgb_scale_6[(c >> 16) & 0x3F]; + rgb[1] = _rgb_scale_6[(c >> 8) & 0x3F]; + rgb[2] = _rgb_scale_6[ c & 0x3F]; +} +static void +v_getrgb8fake8 (unsigned int offset, unsigned char rgb[]) +{ + word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]]; + rgb[0] = c >> 16; + rgb[1] = c >> 8; + rgb[2] = c; +} + + +/* Desc: create R5G6B5 to FakeColor table lookup + * + * In : - + * Out : - + * + * Note: - + */ +static void +init_tab_16_8 (void) +{ + int i; + for (i = 0; i < 0x10000; i++) { + unsigned char rgb[3]; + rgb[0] = _rgb_scale_5[(i >> 11) & 0x1F]; + rgb[1] = _rgb_scale_6[(i >> 5) & 0x3F]; + rgb[2] = _rgb_scale_5[ i & 0x1F]; + tab_16_8[i] = v_mixrgb8fake(rgb); + } + (void)v_getrgb8fake6; + (void)v_getrgb8fake8; +} + + +/* Desc: set one palette entry + * + * In : index, R, G, B + * Out : - + * + * Note: color components are in range [0.0 .. 1.0] + */ +void +vl_setCI (int index, float red, float green, float blue) +{ + drv->setCI_f(index, red, green, blue); +} + + +/* Desc: set one palette entry + * + * In : color, R, G, B + * Out : - + * + * Note: - + */ +static void +fake_setcolor (int c, int r, int g, int b) +{ + VGAPalette[c] = 0xff000000 | (r<<16) | (g<<8) | b; + + drv->setCI_i(c, r, g, b); +} + + +/* Desc: build FakeColor palette + * + * In : CI precision in bits + * Out : - + * + * Note: - + */ +static void +fake_buildpalette (int bits) +{ + double c_r, c_g, c_b; + int r, g, b, color = 0; + + double max = (1 << bits) - 1; + + for (b = 0; b < B_CNT; ++b) { + for (g = 0; g < G_CNT; ++g) { + for (r = 0; r < R_CNT; ++r) { + c_r = 0.5 + (double)r * (max-R_BIAS) / (R_CNT-1.) + R_BIAS; + c_g = 0.5 + (double)g * (max-G_BIAS) / (G_CNT-1.) + G_BIAS; + c_b = 0.5 + (double)b * (max-B_BIAS) / (B_CNT-1.) + B_BIAS; + fake_setcolor(color++, (int)c_r, (int)c_g, (int)c_b); + } + } + } + + for (color = 0; color < 256; color++) { + c_r = (double)color * R_CNT / 256.; + c_g = (double)color * G_CNT / 256.; + c_b = (double)color * B_CNT / 256.; + array_r[color] = (int)c_r; + array_g[color] = (int)c_g; + array_b[color] = (int)c_b; + } +} + + +/* Desc: initialize hardware + * + * In : - + * Out : list of available modes + * + * Note: when returning non-NULL, global variable `drv' is guaranteed to be ok + */ +static vl_mode * +v_init_hw (void) +{ + static vl_mode *q = NULL; + + if (q == NULL) { + /* are we forced to NUL driver? */ + if (getenv("DMESA_NULDRV")) { + if ((q = NUL.init()) != NULL) { + drv = &NUL; + } + return q; + } + /* initialize hardware */ + if ((q = VESA.init()) != NULL) { + drv = &VESA; + } else if ((q = VGA.init()) != NULL) { + drv = &VGA; + } else { + drv = NULL; + } + } + + return q; +} + + +/* Desc: sync buffer with video hardware + * + * In : ptr to old buffer, position, size + * Out : 0 if success + * + * Note: - + */ +int +vl_sync_buffer (void **buffer, int x, int y, int width, int height) +{ + if ((/*XXX*/width & 7) || (x < 0) || (y < 0) || (x+width > video_mode->xres) || (y+height > video_mode->yres)) { + return -1; + } else { + void *newbuf = *buffer; + + if ((newbuf == NULL) || (vl_current_width != width) || (vl_current_height != height)) { + newbuf = realloc(newbuf, width * height * video_bypp); + } + + if (newbuf == NULL) { + return -2; + } + + vl_current_width = width; + vl_current_height = height; + vl_current_stride = vl_current_width * video_bypp; + vl_current_bytes = vl_current_stride * height; + + vl_current_offset = video_scanlen * y + video_bypp * x; + vl_current_delta = video_scanlen - vl_current_stride; + + vl_current_draw_buffer = vl_current_read_buffer = *buffer = newbuf; + return 0; + } +} + + +/* Desc: state retrieval + * + * In : name, storage + * Out : -1 for an error + * + * Note: - + */ +int +vl_get (int pname, int *params) +{ + switch (pname) { + case VL_GET_SCREEN_SIZE: + params[0] = video_mode->xres; + params[1] = video_mode->yres; + break; + case VL_GET_VIDEO_MODES: { + int n; + vl_mode *q; + if ((q = v_init_hw()) == NULL) { + return -1; + } + /* count available visuals */ + for (n = 0; q->mode != 0xffff; q++) { + if ((q + 1)->mode == (q->mode | 0x4000)) { + /* same mode, but linear */ + q++; + } + if (params) { + params[n] = (int)q; + } + n++; + } + return n; + } + default: + return (drv != NULL) ? drv->get(pname, params) : -1; + } + return 0; +} + + +/* Desc: setup mode + * + * In : ptr to mode definition + * Out : 0 if success + * + * Note: - + */ +static int +vl_setup_mode (vl_mode *p) +{ + if (p == NULL) { + return -1; + } + + switch (p->bpp) { + case 8: + break; + case 15: + break; + case 16: + break; + case 24: + break; + case 32: + break; + default: + return -1; + } + + video_mode = p; + video_bypp = (p->bpp+7)/8; + video_scanlen = p->scanlen; + vl_video_selector = p->sel; + + return 0; +} + + +/* Desc: restore to the mode prior to first call to `vl_video_init'. + * + * In : - + * Out : - + * + * Note: - + */ +void +vl_video_exit (void) +{ + drv->restore(); + drv->fini(); + video_mode = NULL; +} + + +/* Desc: enter mode + * + * In : xres, yres, bits/pixel, RGB, refresh rate + * Out : pixel width in bits if success + * + * Note: - + */ +int +vl_video_init (int width, int height, int bpp, int rgb, int refresh, int fbbits) +{ + int fake; + vl_mode *p, *q; + unsigned int min; + + fake = 0; + if (!rgb) { + bpp = 8; + } else if (bpp == 8) { + fake = 1; + } + + /* initialize hardware */ + if ((q = v_init_hw()) == NULL) { + return 0; + } + + /* search for a mode that fits our request */ + for (min = -1, p = NULL; q->mode != 0xffff; q++) { + if ((q->xres >= width) && (q->yres >= height) && (q->bpp == bpp)) { + if (min >= (unsigned)(q->xres * q->yres)) { + min = q->xres * q->yres; + p = q; + } + } + } + + /* setup and enter mode */ + if ((vl_setup_mode(p) == 0) && (drv->entermode(p, refresh, fbbits) == 0)) { + vl_flip = drv->blit; + if (fake) { + drv->get(VL_GET_CI_PREC, (int *)(&min)); + fake_buildpalette(min); + init_tab_16_8(); + } + return bpp; + } + + /* abort */ + return 0; +} diff --git a/src/mesa/drivers/dos/video.h b/src/mesa/drivers/dos/video.h new file mode 100644 index 0000000000..e084116742 --- /dev/null +++ b/src/mesa/drivers/dos/video.h @@ -0,0 +1,56 @@ +/* + * Mesa 3-D graphics library + * Version: 4.0 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver for Mesa + * + * Author: Daniel Borca + * Email : dborca@users.sourceforge.net + * Web : http://www.geocities.com/dborca + */ + + +#ifndef VIDEO_H_included +#define VIDEO_H_included + +typedef int fixed; + +#define VL_GET_CARD_NAME 0x0100 +#define VL_GET_VRAM 0x0101 +#define VL_GET_CI_PREC 0x0200 +#define VL_GET_HPIXELS 0x0201 +#define VL_GET_SCREEN_SIZE 0x0202 +#define VL_GET_VIDEO_MODES 0x0300 + +extern void (*vl_flip) (void); + +void vl_setCI (int index, float red, float green, float blue); + +int vl_sync_buffer (void **buffer, int x, int y, int width, int height); +int vl_get (int pname, int *params); + +void vl_video_exit (void); +int vl_video_init (int width, int height, int bpp, int rgb, int refresh, int fbbits); + +#endif |