DOS updates
This commit is contained in:
Brian Paul
199
src/mesa/drivers/dos/vesa/blit.S
Normal file
199
src/mesa/drivers/dos/vesa/blit.S
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@@ -0,0 +1,199 @@
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/*
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* Mesa 3-D graphics library
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* Version: 4.0
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*
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* Copyright (C) 1999 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* DOS/DJGPP device driver v1.3 for Mesa 5.0
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*
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* Copyright (C) 2002 - Borca Daniel
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* Email : dborca@yahoo.com
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* Web : http://www.geocities.com/dborca
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*/
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.file "blit.S"
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/*
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* extern unsigned int vesa_gran_mask, vesa_gran_shift;
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* extern int vl_video_selector;
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* extern void *vl_current_draw_buffer;
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* extern int vl_current_stride, vl_current_height;
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* extern int vl_current_offset, vl_current_delta;
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*/
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.text
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/* Desc: VESA bank switching routine (BIOS)
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*
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* In : EBX=0, EDX = bank number
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* Out : -
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*
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* Note: thrashes EAX
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*/
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.p2align 5,,31
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_vesa_swbankBIOS:
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movw $0x4f05, %ax
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int $0x10
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ret
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.p2align 2,,3
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.global _vesa_swbank
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_vesa_swbank: .long _vesa_swbankBIOS
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/* Desc: void vesa_b_dump_virtual (void);
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*
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* In : -
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* Out : -
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*
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* Note: uses current draw buffer
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*/
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.p2align 5,,31
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.global _vesa_b_dump_virtual
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_vesa_b_dump_virtual:
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cld
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pushl %es
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pushl %ebx
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pushl %esi
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pushl %edi
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pushl %ebp
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movl _vl_video_selector, %es
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movl _vl_current_draw_buffer, %esi
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movl _vl_current_offset, %edi
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movl _vesa_gran_shift, %ecx
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movl _vesa_gran_mask, %ebp
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movl %edi, %edx
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xorl %ebx, %ebx
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andl %ebp, %edi
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shrl %cl, %edx
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incl %ebp
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call *_vesa_swbank
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movl _vl_current_stride, %ecx
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movl _vl_current_height, %eax
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movl _vl_current_delta, %ebx
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shrl $2, %ecx
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.balign 4
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0:
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pushl %ecx
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.balign 4
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1:
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cmpl %ebp, %edi
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jb 2f
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pushl %eax
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pushl %ebx
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incl %edx
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xorl %ebx, %ebx
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call *_vesa_swbank
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popl %ebx
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popl %eax
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subl %ebp, %edi
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.balign 4
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2:
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movsl
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decl %ecx
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jnz 1b
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popl %ecx
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addl %ebx, %edi
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decl %eax
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jnz 0b
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popl %ebp
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popl %edi
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popl %esi
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popl %ebx
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popl %es
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ret
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/* Desc: void vesa_l_dump_virtual (void);
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*
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* In : -
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* Out : -
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*
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* Note: uses current draw buffer
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*/
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.p2align 5,,31
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.global _vesa_l_dump_virtual
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_vesa_l_dump_virtual:
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cld
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pushl %es
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pushl %esi
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pushl %edi
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movl _vl_video_selector, %es
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movl _vl_current_draw_buffer, %esi
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movl _vl_current_offset, %edi
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movl _vl_current_stride, %ecx
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movl _vl_current_height, %edx
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movl _vl_current_delta, %eax
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shrl $2, %ecx
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.balign 4
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0:
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pushl %ecx
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rep; movsl
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popl %ecx
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addl %eax, %edi
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decl %edx
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jnz 0b
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popl %edi
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popl %esi
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popl %es
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ret
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/* Desc: void vesa_l_dump_virtual_mmx (void);
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*
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* In : -
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* Out : -
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*
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* Note: uses current draw buffer
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*/
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.p2align 5,,31
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.global _vesa_l_dump_virtual_mmx
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_vesa_l_dump_virtual_mmx:
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#ifdef USE_MMX_ASM
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pushl %esi
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pushl %edi
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movl _vl_video_selector, %fs
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movl _vl_current_draw_buffer, %esi
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movl _vl_current_offset, %edi
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movl _vl_current_stride, %ecx
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movl _vl_current_height, %edx
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movl _vl_current_delta, %eax
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shrl $3, %ecx
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.balign 4
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0:
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pushl %ecx
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.balign 4
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1:
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movq (%esi), %mm0
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addl $8, %esi
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movq %mm0, %fs:(%edi)
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addl $8, %edi
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decl %ecx
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jnz 1b
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popl %ecx
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addl %eax, %edi
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decl %edx
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jnz 0b
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popl %edi
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popl %esi
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emms
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#endif
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ret
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226
src/mesa/drivers/dos/vga/vga.c
Normal file
226
src/mesa/drivers/dos/vga/vga.c
Normal file
@@ -0,0 +1,226 @@
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/*
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* Mesa 3-D graphics library
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* Version: 4.1
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*
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* Copyright (C) 1999 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
|
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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||||
*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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||||
*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* DOS/DJGPP device driver v1.3 for Mesa 5.0
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*
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* Copyright (C) 2002 - Borca Daniel
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* Email : dborca@yahoo.com
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* Web : http://www.geocities.com/dborca
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*/
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#include <stdlib.h>
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#include "vga.h"
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static vl_mode modes[4] = {
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{0x13 | 0x4000, 320, 200, 320, 8, -1, 320*200},
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{0xffff, -1, -1, -1, -1, -1, -1}
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};
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static word16 vga_ver;
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static int linear_selector;
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static int oldmode = -1;
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#define vga_color_precision 6
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/* Desc: Attempts to detect VGA, check video modes and create selectors.
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*
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* In : -
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* Out : mode array
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*
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* Note: -
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*/
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static vl_mode *vga_init (void)
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{
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int rv = 0;
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if (vga_ver) {
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return modes;
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}
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__asm("\n\
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movw $0x1a00, %%ax \n\
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int $0x10 \n\
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cmpb $0x1a, %%al \n\
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jne 0f \n\
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cmpb $0x07, %%bl \n\
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jb 0f \n\
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andl $0xff, %%ebx \n\
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movl %%ebx, %0 \n\
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0:":"=g"(rv)::"%eax", "%ebx");
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if (rv == 0) {
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return NULL;
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}
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if (_create_selector(&linear_selector, 0xa0000, 0x10000)) {
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return NULL;
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}
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modes[0].sel = linear_selector;
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vga_ver = rv;
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return modes;
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}
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/* Desc: Frees all resources allocated by VGA init code.
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*
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* In : -
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* Out : -
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*
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* Note: -
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*/
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static void vga_finit (void)
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{
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if (vga_ver) {
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_remove_selector(&linear_selector);
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}
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}
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/* Desc: Attempts to enter specified video mode.
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*
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* In : ptr to mode structure, refresh rate
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* Out : 0 if success
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*
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* Note: -
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*/
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static int vga_entermode (vl_mode *p, int refresh)
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{
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if (!(p->mode & 0x4000)) {
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return -1;
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}
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VGA.blit = vl_can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual;
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if (oldmode == -1) {
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__asm("\n\
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movb $0x0f, %%ah \n\
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int $0x10 \n\
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andl $0xff, %%eax \n\
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movl %%eax, %0 \n\
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":"=g"(oldmode)::"%eax", "%ebx");
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}
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__asm("int $0x10"::"a"(p->mode&0xff));
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return 0;
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}
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/* Desc: Restores to the mode prior to first call to vga_entermode.
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*
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* In : -
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* Out : -
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*
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* Note: -
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*/
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static void vga_restore (void)
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{
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if (oldmode != -1) {
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__asm("int $0x10"::"a"(oldmode));
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}
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}
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/* Desc: set one palette entry
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*
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* In : color index, R, G, B
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* Out : -
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*
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* Note: uses normalized values
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*/
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static void vga_setCI_f (int index, float red, float green, float blue)
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{
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float max = (1 << vga_color_precision) - 1;
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int _red = red * max;
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int _green = green * max;
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int _blue = blue * max;
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__asm("\n\
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movw $0x1010, %%ax \n\
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movb %1, %%dh \n\
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movb %2, %%ch \n\
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int $0x10 \n\
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"::"b"(index), "m"(_red), "m"(_green), "c"(_blue):"%eax", "%edx");
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}
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/* Desc: set one palette entry
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*
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* In : color index, R, G, B
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* Out : -
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*
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* Note: uses integer values
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*/
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static void vga_setCI_i (int index, int red, int green, int blue)
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{
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__asm("\n\
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movw $0x1010, %%ax \n\
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movb %1, %%dh \n\
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movb %2, %%ch \n\
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int $0x10 \n\
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"::"b"(index), "m"(red), "m"(green), "c"(blue):"%eax", "%edx");
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}
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/* Desc: retrieve CI precision
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*
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* In : -
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* Out : precision in bits
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*
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* Note: -
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*/
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static int vga_getCIprec (void)
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{
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return vga_color_precision;
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}
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/*
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* the driver
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*/
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vl_driver VGA = {
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vga_init,
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vga_entermode,
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NULL,
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vga_setCI_f,
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vga_setCI_i,
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vga_getCIprec,
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vga_restore,
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vga_finit
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};
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42
src/mesa/drivers/dos/vga/vga.h
Normal file
42
src/mesa/drivers/dos/vga/vga.h
Normal file
@@ -0,0 +1,42 @@
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/*
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* 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 v1.3 for Mesa 5.0
|
||||
*
|
||||
* Copyright (C) 2002 - Borca Daniel
|
||||
* Email : dborca@yahoo.com
|
||||
* Web : http://www.geocities.com/dborca
|
||||
*/
|
||||
|
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|
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#ifndef VGA_H_included
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#define VGA_H_included
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#include "../internal.h"
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#include "../vesa/vesa.h"
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extern vl_driver VGA;
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||||
|
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#endif
|
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