mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-11-24 17:59:38 +03:00
fixes in draw triangle functions
git-svn-id: svn://kolibrios.org@5187 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
IgorA
parent
636971f000
commit
01ca66aad4
@ -43,6 +43,9 @@ endl
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fadd dword[eax+offs_cont_viewport+offs_vpor_trans+offs_Z]
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fistp dword[ebx+offs_vert_zp+offs_zbup_z] ;v.zp.z = st0, st0 = st1
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ffree st0
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fincstp
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; color
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bt dword[eax+offs_cont_lighting_enabled],0
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jnc @f
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@ -695,13 +698,13 @@ pushad
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mov edi,dword[ebx+offs_vert_zp+offs_zbup_y]
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mov dword[norm],edi
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fimul dword[norm]
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fsub st0,st1
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fsubp
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;st0 = (p1.zp.x-p0.zp.x)*(p2.zp.y-p0.zp.y) - (p2.zp.x-p0.zp.x)*(p1.zp.y-p0.zp.y)
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mov dword[front],0
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fldz
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fcom st1
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fcompp
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fstsw ax
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sahf
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je .end_f
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@ -741,11 +744,9 @@ pushad
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and eax,[cc]
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and eax,[cc+4]
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cmp eax,0
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jne @f
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jne .end_f
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stdcall gl_draw_triangle_clip, [context],ebx,ecx,edx,0
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.end_f:
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finit
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@@:
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popad
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ret
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endp
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@ -986,14 +987,14 @@ proc gl_draw_triangle_point uses eax ebx edx, context:dword, p0:dword,p1:dword,p
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add ebx,offs_vert_zp
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stdcall ZB_plot,dword[edx+offs_cont_zb],ebx
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@@:
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add eax,[p1]
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mov eax,[p1]
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cmp dword[eax+offs_vert_edge_flag],0
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je @f
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mov ebx,eax
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add ebx,offs_vert_zp
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stdcall ZB_plot,dword[edx+offs_cont_zb],ebx
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@@:
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add eax,[p2]
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mov eax,[p2]
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cmp dword[eax+offs_vert_edge_flag],0
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je @f
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mov ebx,eax
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174
programs/develop/libraries/TinyGL/asm_fork/examples/test3.asm
Normal file
174
programs/develop/libraries/TinyGL/asm_fork/examples/test3.asm
Normal file
@ -0,0 +1,174 @@
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use32
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org 0x0
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db 'MENUET01'
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dd 0x1
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dd start
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dd i_end
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dd mem,stacktop
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dd 0,cur_dir_path
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include '../../../../../../programs/proc32.inc'
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include '../../../../../../programs/macros.inc'
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include '../../../../../../programs/develop/libraries/box_lib/load_lib.mac'
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include '../../../../../../programs/dll.inc'
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include '../opengl_const.inc'
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@use_library
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align 4
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start:
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load_library name_tgl, cur_dir_path, library_path, system_path, \
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err_message_found_lib, head_f_l, import_lib_tinygl, err_message_import, head_f_i
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cmp eax,-1
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jz button.exit
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mcall 40,0x27
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stdcall [kosglMakeCurrent], 10,10,300,225,ctx1
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;;;stdcall [glEnable], GL_DEPTH_TEST
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stdcall [glClearColor], 0.2,0.0,0.2,0.0
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stdcall [glShadeModel],GL_FLAT
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call draw_3d
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align 4
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red_win:
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call draw_window
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align 4
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still:
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mcall 10
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cmp al,1
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jz red_win
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cmp al,2
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jz key
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cmp al,3
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jz button
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jmp still
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align 4
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draw_window:
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pushad
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mcall 12,1
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mov edx,0x33ffffff ;0x73ffffff
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mcall 0,(50 shl 16)+330,(30 shl 16)+275,,,caption
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stdcall [kosglSwapBuffers]
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mcall 12,2
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popad
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ret
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align 4
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key:
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mcall 2
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cmp ah,27 ;Esc
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je button.exit
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;178 ;Up
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;177 ;Down
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cmp ah,176 ;Left
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jne @f
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fld dword[angle_z]
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fadd dword[delt_size]
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fstp dword[angle_z]
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call draw_3d
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stdcall [kosglSwapBuffers]
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@@:
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cmp ah,179 ;Right
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jne @f
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fld dword[angle_z]
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fsub dword[delt_size]
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fstp dword[angle_z]
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call draw_3d
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stdcall [kosglSwapBuffers]
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@@:
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jmp still
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align 4
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button:
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mcall 17
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cmp ah,1
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jne still
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.exit:
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mcall -1
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align 4
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caption db 'Test tinygl library, [Esc] - exit, [<-] and [->] - rotate',0
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align 4
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ctx1 db 28 dup (0) ;TinyGLContext or KOSGLContext
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;sizeof.TinyGLContext = 28
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align 4
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draw_3d:
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stdcall [glClear], GL_COLOR_BUFFER_BIT + GL_DEPTH_BUFFER_BIT ;очистим буфер цвета и глубины
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stdcall [glPushMatrix]
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stdcall [glRotatef], [angle_z],0.0,0.0,1.0
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stdcall [glColor3f],0.0, 0.0, 1.0
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stdcall [glBegin],GL_LINE_LOOP
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stdcall [glVertex3f], 0.0, 0.5, 0.3
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stdcall [glVertex3f], 0.354, 0.354, 0.3
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stdcall [glVertex3f], 0.5, 0.0, 0.3
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stdcall [glEnd]
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;stdcall [glColor3f],1.0, 1.0, 0.0
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stdcall [glBegin],GL_LINE_LOOP
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stdcall [glVertex3f], 0.354, -0.354, 0.3
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stdcall [glVertex3f], 0.0, -0.5, 0.3
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stdcall [glVertex3f], -0.354,-0.354, 0.3
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stdcall [glEnd]
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stdcall [glColor3f],1.0, 0.0, 0.0
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stdcall [glBegin],GL_TRIANGLES
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stdcall [glVertex3f], 0.0, 0.5, 0.1
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stdcall [glVertex3f], 0.354, 0.354, 0.1
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stdcall [glVertex3f], 0.5, 0.0, 0.1
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stdcall [glColor3f],1.0, 1.0, 0.0
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stdcall [glVertex3f], 0.354, -0.354, 0.1
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stdcall [glVertex3f], 0.0, -0.5, 0.1
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stdcall [glVertex3f], -0.354,-0.354, 0.1
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stdcall [glEnd]
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stdcall [glPopMatrix]
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ret
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angle_z dd 15.0
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delt_size dd 3.0
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;--------------------------------------------------
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align 4
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import_lib_tinygl:
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macro E_LIB n
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{
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n dd sz_#n
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}
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include '../export.inc'
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dd 0,0
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macro E_LIB n
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{
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sz_#n db `n,0
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}
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include '../export.inc'
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;--------------------------------------------------
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system_path db '/sys/lib/'
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name_tgl db 'tinygl.obj',0
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err_message_found_lib db 'Sorry I cannot load library tinygl.obj',0
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head_f_i:
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head_f_l db 'System error',0
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err_message_import db 'Error on load import library tinygl.obj',0
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;--------------------------------------------------
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i_end:
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rb 1024
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stacktop:
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cur_dir_path:
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rb 4096
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library_path:
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rb 4096
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mem:
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@ -83,6 +83,10 @@ m_2 db '(2)',13,10,0
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m_3 db '(3)',13,10,0
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m_4 db '(4)',13,10,0
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m_5 db '(5)',13,10,0
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m_6 db '(6)',13,10,0
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m_7 db '(7)',13,10,0
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m_8 db '(8)',13,10,0
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m_9 db '(9)',13,10,0
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buf_param rb 80
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@ -161,6 +165,11 @@ f_alloc_l db 'alloc_list',0
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f_is_l db 'glIsList',0
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f_gen_l db 'glGenLists',0
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f_end_l db 'glEndList',0
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;f_fill_trf db 'ZB_fillTriangleFlat',0
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;f_fill_trrgb db 'ZB_fillTriangleSmooth',0
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f_fill_tr db 'ZB_fillTriangle...',0
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f_fill_tr_nl db ' lines',0
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f_fill_tr_nll db ' len',0
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align 4
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proc dbg_print, fun:dword, mes:dword
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@ -14,7 +14,7 @@ if TGL_FEATURE_RENDER_BITS eq 24
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mov eax,[ecx+offs_zbup_b]
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shr eax,8
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mov [colorB],al ;colorB=p2.b>>8
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else
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;else
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; color=RGB_TO_PIXEL(p2->r,p2->g,p2->b);
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end if
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}
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@ -29,16 +29,16 @@ local .end_0
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cmp ax,word[ebx+2*_a] ;if (zz >= pz[_a])
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jl .end_0
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;edi = pp
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mov word[ebx+2*_a],ax ;пишем в буфер глубины новое значение
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if TGL_FEATURE_RENDER_BITS eq 24
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mov cl,[colorR]
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mov ch,[colorG]
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mov word[edi+3*_a],cx
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mov cl,[colorB]
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mov byte[edi+3*_a +2],cl
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else
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;else
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; pp[_a]=color;
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end if
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mov word[ebx+2*_a],ax ;пишем в буфер глубины новое значение
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.end_0:
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mov eax,[dzdx]
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add [z],eax
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@ -75,55 +75,67 @@ end if
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macro PUT_PIXEL _a
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{
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local .end_0
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mov eax,[z]
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shr eax,ZB_POINT_Z_FRAC_BITS
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mov [zz],eax
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mov ebx,[pz]
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cmp ax,word[ebx+2*_a] ;if (zz >= pz[_a])
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jl .end_0
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;edi = pp
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mov word[ebx+2*_a],ax ;пишем в буфер глубины новое значение
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if TGL_FEATURE_RENDER_BITS eq 24
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; if (zz >= pz[_a]) {
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; pp[3 * _a]=or1 >> 8;
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; pp[3 * _a + 1]=og1 >> 8;
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; pp[3 * _a + 2]=ob1 >> 8;
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; pz[_a]=zz;
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; }
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mov eax,[dzdx]
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add [z],eax
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; og1+=dgdx;
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; or1+=drdx;
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; ob1+=dbdx;
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elseif TGL_FEATURE_RENDER_BITS eq 16
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; if (zz >= pz[_a]) {
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mov eax,[or1]
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mov cl,ah
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mov eax,[og1]
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mov ch,ah
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mov word[edi+3*_a],cx
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mov eax,[ob1]
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mov byte[edi+3*_a +2],ah
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end if
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if TGL_FEATURE_RENDER_BITS eq 16
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; tmp=rgb & 0xF81F07E0;
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; pp[_a]=tmp | (tmp >> 16);
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; pz[_a]=zz;
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; }
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; z+=dzdx;
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; rgb=(rgb+drgbdx) & ( ~ 0x00200800);
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else
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; if (zz >= pz[_a]) {
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;else
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; pp[_a] = RGB_TO_PIXEL(or1, og1, ob1);
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; pz[_a]=zz;
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; }
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end if
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.end_0:
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mov eax,[dzdx]
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add [z],eax
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; og1+=dgdx;
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; or1+=drdx;
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; ob1+=dbdx;
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if TGL_FEATURE_RENDER_BITS eq 16
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; rgb=(rgb+drgbdx) & ( ~ 0x00200800);
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end if
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if TGL_FEATURE_RENDER_BITS <> 16
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mov eax,[dgdx]
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add [og1],eax
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mov eax,[drdx]
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add [or1],eax
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mov eax,[dbdx]
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add [ob1],eax
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end if
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}
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DRAW_LINE_M equ 1
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;;;DRAW_LINE_M equ 1
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macro DRAW_LINE code
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{
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local .cycle_0
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local .cycle_1
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if TGL_FEATURE_RENDER_BITS eq 16
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if code eq 0
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; register unsigned short *pz;
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; register PIXEL *pp;
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; register unsigned int tmp,z,zz,rgb,drgbdx;
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; register int n;
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pz dd ? ;uint*
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tmp dd ? ;uint
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z dd ? ;uint
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zz dd ? ;uint
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rgb dd ? ;uint
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drgbdx dd ? ;uint
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n dd ? ;int
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end if
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if code eq 1
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; n=(x2 >> 16) - x1;
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mov eax,[x2]
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shr eax,16
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sub eax,[x1]
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mov [n],eax ;n = (x2 >> 16) - x1
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; pp=pp1+x1;
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; pz=pz1+x1;
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; z=z1;
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@ -131,21 +143,27 @@ if code eq 1
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; rgb|=(g1 >> 5) & 0x000007FF;
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; rgb|=(b1 << 5) & 0x001FF000;
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; drgbdx=_drgbdx;
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; while (n>=3) {
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; PUT_PIXEL(0);
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; PUT_PIXEL(1);
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; PUT_PIXEL(2);
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; PUT_PIXEL(3);
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; pz+=4;
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; pp+=4;
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; n-=4;
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; }
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; while (n>=0) {
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; PUT_PIXEL(0);
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; pz+=1;
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; pp+=1;
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; n-=1;
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; }
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align 4
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.cycle_0: ;while (n>=3)
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cmp dword[n],3
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jl .cycle_1
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PUT_PIXEL 0
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PUT_PIXEL 1
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PUT_PIXEL 2
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PUT_PIXEL 3
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add dword[pz],8
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add edi,4
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sub [n],4
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jmp .cycle_0
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.cycle_1: ;while (n>=0)
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cmp dword[n],0
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jl .cycle_1_end
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PUT_PIXEL 0
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add dword[pz],2
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inc edi
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dec dword[n]
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jmp .cycle_1
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.cycle_1_end:
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end if
|
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end if
|
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}
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@ -171,27 +189,31 @@ INTERP_ST equ 1
|
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|
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macro DRAW_INIT
|
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{
|
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; texture=zb->current_texture;
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mov eax,[zb]
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mov eax,[eax+offs_zbuf_current_texture]
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mov [texture],eax
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}
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macro PUT_PIXEL _a
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{
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; zz=z >> ZB_POINT_Z_FRAC_BITS;
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local .end_0
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mov eax,[z]
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shr eax,ZB_POINT_Z_FRAC_BITS
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mov [zz],eax
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mov ebx,[pz]
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cmp ax,word[ebx+2*_a] ;if (zz >= pz[_a])
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jl .end_0
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; pz[_a]=zz;
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if TGL_FEATURE_RENDER_BITS eq 24
|
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; unsigned char *ptr;
|
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; if (zz >= pz[_a]) {
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; ptr = texture + (((t & 0x3FC00000) | s) >> 14) * 3;
|
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; pp[3 * _a]= ptr[0];
|
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; pp[3 * _a + 1]= ptr[1];
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; pp[3 * _a + 2]= ptr[2];
|
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; pz[_a]=zz;
|
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; }
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else
|
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; if (zz >= pz[_a]) {
|
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; pp[_a]=texture[((t & 0x3FC00000) | s) >> 14];
|
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; pz[_a]=zz;
|
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; }
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end if
|
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.end_0:
|
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mov eax,[dzdx]
|
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add [z],eax
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mov eax,[dsdx]
|
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@ -220,8 +242,11 @@ NB_INTERP equ 8
|
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|
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macro DRAW_INIT
|
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{
|
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; texture=zb->current_texture;
|
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; fdzdx=(float)dzdx;
|
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mov eax,[zb]
|
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mov eax,[eax+offs_zbuf_current_texture]
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mov [texture],eax
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fild dword[dzdx]
|
||||
fstp dword[fdzdx]
|
||||
; fndzdx=NB_INTERP * fdzdx;
|
||||
; ndszdx=NB_INTERP * dszdx;
|
||||
; ndtzdx=NB_INTERP * dtzdx;
|
||||
@ -229,23 +254,25 @@ macro DRAW_INIT
|
||||
|
||||
macro PUT_PIXEL _a
|
||||
{
|
||||
; zz=z >> ZB_POINT_Z_FRAC_BITS;
|
||||
local .end_0
|
||||
mov eax,[z]
|
||||
shr eax,ZB_POINT_Z_FRAC_BITS
|
||||
mov [zz],eax
|
||||
mov ebx,[pz]
|
||||
cmp ax,word[ebx+2*_a] ;if (zz >= pz[_a])
|
||||
jl .end_0
|
||||
; pz[_a]=zz;
|
||||
if TGL_FEATURE_RENDER_BITS eq 24
|
||||
; unsigned char *ptr;
|
||||
; if (zz >= pz[_a]) {
|
||||
; ptr = texture + (((t & 0x3FC00000) | (s & 0x003FC000)) >> 14) * 3;
|
||||
; pp[3 * _a]= ptr[0];
|
||||
; pp[3 * _a + 1]= ptr[1];
|
||||
; pp[3 * _a + 2]= ptr[2];
|
||||
; pz[_a]=zz;
|
||||
; }
|
||||
else
|
||||
; if (zz >= pz[_a]) {
|
||||
; pp[_a]=*(PIXEL *)((char *)texture+
|
||||
; (((t & 0x3FC00000) | (s & 0x003FC000)) >> (17 - PSZSH)));
|
||||
; pz[_a]=zz;
|
||||
; }
|
||||
end if
|
||||
.end_0:
|
||||
mov eax,[dzdx]
|
||||
add [z],eax
|
||||
mov eax,[dsdx]
|
||||
@ -261,12 +288,11 @@ macro DRAW_LINE code
|
||||
if TGL_FEATURE_RENDER_BITS eq 24
|
||||
if code eq 0
|
||||
pz dd ? ;uint *
|
||||
;edi = pp dd ?
|
||||
s dd ? ;uint
|
||||
t dd ? ;uint
|
||||
z dd ? ;uint
|
||||
zz dd ? ;uint
|
||||
n dd ? ;int
|
||||
n1 dd ? ;int - длинна горизонтальной линии в пикселях
|
||||
dsdx dd ? ;int
|
||||
dtdx dd ? ;int
|
||||
s_z dd ? ;float
|
||||
@ -275,7 +301,7 @@ if code eq 0
|
||||
zinv dd ? ;float
|
||||
end if
|
||||
if code eq 1
|
||||
; n=(x2>>16)-x1;
|
||||
; n1=(x2>>16)-x1;
|
||||
; fz=(float)z1;
|
||||
; zinv=1.0 / fz;
|
||||
; pp=(pp1 + x1 * PSZB);
|
||||
@ -283,7 +309,7 @@ if code eq 1
|
||||
; z=z1;
|
||||
; sz=sz1;
|
||||
; tz=tz1;
|
||||
; while (n>=(NB_INTERP-1)) {
|
||||
; while (n1>=(NB_INTERP-1)) {
|
||||
; {
|
||||
; float ss,tt;
|
||||
; ss=(sz * zinv);
|
||||
@ -305,7 +331,7 @@ if code eq 1
|
||||
; PUT_PIXEL(7);
|
||||
; pz+=NB_INTERP;
|
||||
; pp=(pp + NB_INTERP * PSZB);
|
||||
; n-=NB_INTERP;
|
||||
; n1-=NB_INTERP;
|
||||
; sz+=ndszdx;
|
||||
; tz+=ndtzdx;
|
||||
; }
|
||||
@ -318,11 +344,11 @@ if code eq 1
|
||||
; dsdx= (int)( (dszdx - ss*fdzdx)*zinv );
|
||||
; dtdx= (int)( (dtzdx - tt*fdzdx)*zinv );
|
||||
; }
|
||||
; while (n>=0) {
|
||||
; PUT_PIXEL(0);
|
||||
; while (n1>=0) {
|
||||
;;; PUT_PIXEL 0
|
||||
; pz+=1;
|
||||
; pp=(PIXEL *)((char *)pp + PSZB);
|
||||
; n-=1;
|
||||
dec dword[n1]
|
||||
; }
|
||||
end if
|
||||
end if
|
||||
@ -333,9 +359,9 @@ proc ZB_fillTriangleMappingPerspective, zb:dword, p0:dword, p1:dword, p2:dword
|
||||
locals
|
||||
texture dd ? ;PIXEL *
|
||||
fdzdx dd ? ;float
|
||||
fndzdx dd ?
|
||||
ndszdx dd ?
|
||||
ndtzdx dd ?
|
||||
fndzdx dd ? ;float
|
||||
ndszdx dd ? ;float
|
||||
ndtzdx dd ? ;float
|
||||
include 'ztriangle.inc'
|
||||
|
||||
end if
|
||||
@ -350,27 +376,37 @@ INTERP_STZ equ 1
|
||||
|
||||
macro DRAW_INIT
|
||||
{
|
||||
; texture=zb->current_texture;
|
||||
mov eax,[zb]
|
||||
mov eax,[eax+offs_zbuf_current_texture]
|
||||
mov [texture],eax
|
||||
}
|
||||
|
||||
macro PUT_PIXEL _a
|
||||
{
|
||||
; float zinv;
|
||||
local .end_0
|
||||
; int s,t;
|
||||
; zz=z >> ZB_POINT_Z_FRAC_BITS;
|
||||
; if (zz >= pz[_a]) {
|
||||
; zinv= 1.0 / (float) z;
|
||||
; s= (int) (sz * zinv);
|
||||
; t= (int) (tz * zinv);
|
||||
; pp[_a]=texture[((t & 0x3FC00000) | s) >> 14];
|
||||
mov eax,[z]
|
||||
shr eax,ZB_POINT_Z_FRAC_BITS
|
||||
mov [zz],eax
|
||||
mov ebx,[pz]
|
||||
cmp ax,word[ebx+2*_a] ;if (zz >= pz[_a])
|
||||
jl .end_0
|
||||
; pz[_a]=zz;
|
||||
; }
|
||||
fild dword[z]
|
||||
fld dword[s_z]
|
||||
fdiv st0,st1
|
||||
;fistp dword[...s...] ;s = (int) (s_z / (float) z)
|
||||
; t= (int) (t_z / (float) z);
|
||||
; pp[_a]=texture[((t & 0x3FC00000) | s) >> 14];
|
||||
.end_0:
|
||||
mov eax,[dzdx]
|
||||
add [z],eax
|
||||
mov eax,[dszdx]
|
||||
add [sz],eax
|
||||
mov eax,[dtzdx]
|
||||
add [tz],eax
|
||||
fld dword[dszdx]
|
||||
fadd dword[s_z]
|
||||
fstp dword[s_z]
|
||||
fld dword,[dtzdx]
|
||||
fadd dword[t_z]
|
||||
fstp dword[t_z]
|
||||
}
|
||||
|
||||
align 4
|
||||
|
||||
@ -19,27 +19,27 @@
|
||||
update_left dd ?
|
||||
update_right dd ?
|
||||
|
||||
nb_lines dd ?
|
||||
nb_lines dd ? ;число горизонтальных линий в половине треугольника
|
||||
dx1 dd ?
|
||||
dy1 dd ?
|
||||
dx2 dd ?
|
||||
;dx2 dd ?
|
||||
dy2 dd ?
|
||||
|
||||
error dd ?
|
||||
derror dd ?
|
||||
x1 dd ?
|
||||
dxdy_min dd ?
|
||||
dxdy_max dd ?
|
||||
error dd ? ;int
|
||||
derror dd ? ;int
|
||||
x1 dd ? ;int
|
||||
dxdy_min dd ? ;int
|
||||
dxdy_max dd ? ;int
|
||||
; warning: x2 is multiplied by 2^16
|
||||
x2 dd ?
|
||||
dx2dy2 dd ?
|
||||
x2 dd ? ;int
|
||||
dx2dy2 dd ? ;int
|
||||
|
||||
if INTERP_Z eq 1
|
||||
z1 dd ?
|
||||
dzdx dd ?
|
||||
dzdy dd ?
|
||||
dzdl_min dd ?
|
||||
dzdl_max dd ?
|
||||
z1 dd ? ;int
|
||||
dzdx dd ? ;int
|
||||
dzdy dd ? ;int
|
||||
dzdl_min dd ? ;int
|
||||
dzdl_max dd ? ;int
|
||||
end if
|
||||
if INTERP_RGB eq 1
|
||||
r1 dd ? ;int
|
||||
@ -59,16 +59,16 @@ if INTERP_RGB eq 1
|
||||
dbdl_max dd ?
|
||||
end if
|
||||
if INTERP_ST eq 1
|
||||
s1 dd ?
|
||||
dsdx dd ?
|
||||
dsdy dd ?
|
||||
dsdl_min dd ?
|
||||
dsdl_max dd ?
|
||||
t1 dd ?
|
||||
dtdx dd ?
|
||||
dtdy dd ?
|
||||
dtdl_min dd ?
|
||||
dtdl_max dd ?
|
||||
s1 dd ? ;int
|
||||
dsdx dd ? ;int
|
||||
dsdy dd ? ;int
|
||||
dsdl_min dd ? ;int
|
||||
dsdl_max dd ? ;int
|
||||
t1 dd ? ;int
|
||||
dtdx dd ? ;int
|
||||
dtdy dd ? ;int
|
||||
dtdl_min dd ? ;int
|
||||
dtdl_max dd ? ;int
|
||||
end if
|
||||
if INTERP_STZ eq 1
|
||||
sz1 dd ? ;float
|
||||
@ -83,11 +83,11 @@ if INTERP_STZ eq 1
|
||||
dtzdl_max dd ? ;float
|
||||
end if
|
||||
|
||||
|
||||
if DRAW_LINE_M eq 1
|
||||
DRAW_LINE 0 ;переменные делаются в макросе
|
||||
else
|
||||
;edi = pp dd ?
|
||||
n dd ? ;int
|
||||
n dd ? ;int - длинна горизонтальной линии в пикселях
|
||||
if INTERP_Z eq 1
|
||||
pz dd ? ;unsigned short *
|
||||
z dd ? ;uint
|
||||
@ -109,41 +109,36 @@ end if
|
||||
end if
|
||||
|
||||
endl
|
||||
pushad
|
||||
|
||||
if DEBUG ;(1)
|
||||
stdcall dbg_print,f_fill_tr,m_1
|
||||
end if
|
||||
|
||||
; we sort the vertex with increasing y
|
||||
mov ebx,[p0]
|
||||
mov ecx,[p1]
|
||||
mov eax,[ebx+offs_zbup_y]
|
||||
cmp [ecx+offs_zbup_y],eax
|
||||
jge @f
|
||||
;if (p1.y < p0.y)
|
||||
mov [p0],ecx
|
||||
mov [p1],ebx
|
||||
xchg ebx,ecx
|
||||
mov eax,[ebx+offs_zbup_y] ;обновляем p0.y для следующего сравнения
|
||||
@@:
|
||||
mov edx,[p2]
|
||||
cmp [edx+offs_zbup_y],eax
|
||||
jge @f
|
||||
;if (p2.y < p0.y)
|
||||
mov [p0],edx
|
||||
mov [p1],ebx
|
||||
mov [p2],ecx
|
||||
mov ebx,[p0]
|
||||
mov ecx,[p1]
|
||||
mov edx,[p2]
|
||||
jmp .end_e0
|
||||
mov eax,[edx+offs_zbup_y]
|
||||
cmp [ecx+offs_zbup_y],eax ;(2-1)
|
||||
jle @f
|
||||
xchg edx,ecx
|
||||
@@:
|
||||
mov eax,[ecx+offs_zbup_y]
|
||||
cmp [edx+offs_zbup_y],eax
|
||||
jge .end_e0
|
||||
;else if (p2.y < p1.y)
|
||||
mov [p1],edx
|
||||
mov [p2],ecx
|
||||
.end_e0:
|
||||
cmp [ebx+offs_zbup_y],eax ;(1-0)
|
||||
jle @f
|
||||
xchg ecx,ebx
|
||||
@@:
|
||||
mov eax,[edx+offs_zbup_y]
|
||||
cmp [ecx+offs_zbup_y],eax ;(2-1)
|
||||
jle @f
|
||||
xchg edx,ecx
|
||||
@@:
|
||||
mov [p0],ebx
|
||||
mov [p1],ecx
|
||||
mov [p2],edx
|
||||
|
||||
; we compute dXdx and dXdy for all interpolated values
|
||||
|
||||
mov eax,[ecx+offs_zbup_x]
|
||||
sub eax,[ebx+offs_zbup_x]
|
||||
mov [fdx1],eax ;p1.x - p0.x
|
||||
@ -158,23 +153,26 @@ endl
|
||||
sub eax,[ebx+offs_zbup_y]
|
||||
mov [fdy2],eax ;p2.y - p0.y
|
||||
|
||||
fild dword[fdx2]
|
||||
fst dword[fdx2]
|
||||
fild dword[fdy1]
|
||||
fst dword[fdy1]
|
||||
fmulp
|
||||
fild dword[fdx1]
|
||||
fst dword[fdx1]
|
||||
fild dword[fdy2]
|
||||
fst dword[fdy2]
|
||||
fmulp
|
||||
fsubp ;st0 = st0-st1
|
||||
fild dword[fdx2]
|
||||
fst dword[fdx2]
|
||||
fild dword[fdy1]
|
||||
fst dword[fdy1]
|
||||
fmulp
|
||||
fsubp ;st0 = st1-st0
|
||||
fst dword[fz] ;fz = fdx1 * fdy2 - fdx2 * fdy1
|
||||
fldz
|
||||
fcompp ;if (fz == 0)
|
||||
fcompp ;if (fz == 0) return
|
||||
fstsw ax
|
||||
sahf
|
||||
je .end_f
|
||||
if DEBUG ;(2)
|
||||
stdcall dbg_print,txt_sp,m_2
|
||||
end if
|
||||
fld1
|
||||
fdiv dword[fz] ;fz = 1.0 / fz
|
||||
fst dword[fz] ;st0 = fz
|
||||
@ -201,26 +199,24 @@ if INTERP_Z eq 1
|
||||
mov eax,[edx+offs_zbup_z]
|
||||
sub eax,[ebx+offs_zbup_z]
|
||||
mov [d2],eax
|
||||
fild dword[d1]
|
||||
fst dword[d1] ;d1 = p1.z - p0.z
|
||||
fild dword[d2]
|
||||
fst dword[d2] ;d2 = p2.z - p0.z
|
||||
fild dword[d1] ;d1 = p1.z - p0.z
|
||||
fild dword[d2] ;d2 = p2.z - p0.z
|
||||
|
||||
fld dword[fdy1]
|
||||
fmul st0,st1
|
||||
fld dword[fdy2]
|
||||
fmul st0,st3
|
||||
fsub st0,st1
|
||||
fmul st0,st2
|
||||
fld dword[fdy1]
|
||||
fmul st0,st2
|
||||
fsubp
|
||||
fistp dword[dzdx] ;dzdx = (int) (fdy2*d1 - fdy1*d2)
|
||||
ffree st0
|
||||
fincstp
|
||||
fld dword[fdx2]
|
||||
fmul st0,st2
|
||||
fld dword[fdx1]
|
||||
fmul st0,st2
|
||||
fsub st0,st1
|
||||
fmul st0,st1
|
||||
fld dword[fdx2]
|
||||
fmul st0,st3
|
||||
fsubp
|
||||
fistp dword[dzdy] ;dzdy = (int) (fdx1*d2 - fdx2*d1)
|
||||
ffree st0
|
||||
ffree st0 ;free d2
|
||||
fincstp
|
||||
ffree st0 ;free d1
|
||||
fincstp
|
||||
end if
|
||||
|
||||
@ -231,26 +227,24 @@ if INTERP_RGB eq 1
|
||||
mov eax,[edx+offs_zbup_r]
|
||||
sub eax,[ebx+offs_zbup_r]
|
||||
mov [d2],eax
|
||||
fild dword[d1]
|
||||
fst dword[d1] ;d1 = p1.r - p0.r
|
||||
fild dword[d2]
|
||||
fst dword[d2] ;d2 = p2.r - p0.r
|
||||
fild dword[d1] ;d1 = p1.r - p0.r
|
||||
fild dword[d2] ;d2 = p2.r - p0.r
|
||||
|
||||
fld dword[fdy1]
|
||||
fmul st0,st1
|
||||
fld dword[fdy2]
|
||||
fmul st0,st3
|
||||
fsub st0,st1
|
||||
fmul st0,st2
|
||||
fld dword[fdy1]
|
||||
fmul st0,st2
|
||||
fsubp
|
||||
fistp dword[drdx] ;drdx = (int) (fdy2*d1 - fdy1*d2)
|
||||
ffree st0
|
||||
fincstp
|
||||
fld dword[fdx2]
|
||||
fmul st0,st2
|
||||
fld dword[fdx1]
|
||||
fmul st0,st2
|
||||
fsub st0,st1
|
||||
fmul st0,st1
|
||||
fld dword[fdx2]
|
||||
fmul st0,st3
|
||||
fsubp
|
||||
fistp dword[drdy] ;drdy = (int) (fdx1*d2 - fdx2*d1)
|
||||
ffree st0
|
||||
ffree st0 ;free d2
|
||||
fincstp
|
||||
ffree st0 ;free d1
|
||||
fincstp
|
||||
|
||||
mov eax,[ecx+offs_zbup_g]
|
||||
@ -259,26 +253,24 @@ if INTERP_RGB eq 1
|
||||
mov eax,[edx+offs_zbup_g]
|
||||
sub eax,[ebx+offs_zbup_g]
|
||||
mov [d2],eax
|
||||
fild dword[d1]
|
||||
fst dword[d1] ;d1 = p1.g - p0.g
|
||||
fild dword[d2]
|
||||
fst dword[d2] ;d2 = p2.g - p0.g
|
||||
fild dword[d1] ;d1 = p1.g - p0.g
|
||||
fild dword[d2] ;d2 = p2.g - p0.g
|
||||
|
||||
fld dword[fdy1]
|
||||
fmul st0,st1
|
||||
fld dword[fdy2]
|
||||
fmul st0,st3
|
||||
fsub st0,st1
|
||||
fmul st0,st2
|
||||
fld dword[fdy1]
|
||||
fmul st0,st2
|
||||
fsubp
|
||||
fistp dword[dgdx] ;dgdx = (int) (fdy2*d1 - fdy1*d2)
|
||||
ffree st0
|
||||
fincstp
|
||||
fld dword[fdx2]
|
||||
fmul st0,st2
|
||||
fld dword[fdx1]
|
||||
fmul st0,st2
|
||||
fsub st0,st1
|
||||
fmul st0,st1
|
||||
fld dword[fdx2]
|
||||
fmul st0,st3
|
||||
fsubp
|
||||
fistp dword[dgdy] ;dgdy = (int) (fdx1*d2 - fdx2*d1)
|
||||
ffree st0
|
||||
ffree st0 ;free d2
|
||||
fincstp
|
||||
ffree st0 ;free d1
|
||||
fincstp
|
||||
|
||||
mov eax,[ecx+offs_zbup_b]
|
||||
@ -287,26 +279,24 @@ if INTERP_RGB eq 1
|
||||
mov eax,[edx+offs_zbup_b]
|
||||
sub eax,[ebx+offs_zbup_b]
|
||||
mov [d2],eax
|
||||
fild dword[d1]
|
||||
fst dword[d1] ;d1 = p1.b - p0.b
|
||||
fild dword[d2]
|
||||
fst dword[d2] ;d2 = p2.b - p0.b
|
||||
fild dword[d1] ;d1 = p1.b - p0.b
|
||||
fild dword[d2] ;d2 = p2.b - p0.b
|
||||
|
||||
fld dword[fdy1]
|
||||
fmul st0,st1
|
||||
fld dword[fdy2]
|
||||
fmul st0,st3
|
||||
fsub st0,st1
|
||||
fmul st0,st2
|
||||
fld dword[fdy1]
|
||||
fmul st0,st2
|
||||
fsubp
|
||||
fistp dword[dbdx] ;dbdx = (int) (fdy2*d1 - fdy1*d2)
|
||||
ffree st0
|
||||
fincstp
|
||||
fld dword[fdx2]
|
||||
fmul st0,st2
|
||||
fld dword[fdx1]
|
||||
fmul st0,st2
|
||||
fsub st0,st1
|
||||
fmul st0,st1
|
||||
fld dword[fdx2]
|
||||
fmul st0,st3
|
||||
fsubp
|
||||
fistp dword[dbdy] ;dbdy = (int) (fdx1*d2 - fdx2*d1)
|
||||
ffree st0
|
||||
ffree st0 ;free d2
|
||||
fincstp
|
||||
ffree st0 ;free d1
|
||||
fincstp
|
||||
end if
|
||||
|
||||
@ -317,19 +307,15 @@ if INTERP_ST eq 1
|
||||
mov eax,[edx+offs_zbup_s]
|
||||
sub eax,[ebx+offs_zbup_s]
|
||||
mov [d2],eax
|
||||
fild dword[d1]
|
||||
fst dword[d1] ;d1 = p1.s - p0.s
|
||||
fild dword[d2]
|
||||
fst dword[d2] ;d2 = p2.s - p0.s
|
||||
fild dword[d1] ;d1 = p1.s - p0.s
|
||||
fild dword[d2] ;d2 = p2.s - p0.s
|
||||
|
||||
fld dword[fdy1]
|
||||
fmul st0,st1
|
||||
fld dword[fdy2]
|
||||
fmul st0,st3
|
||||
fsub st0,st1
|
||||
fmul st0,st2
|
||||
fld dword[fdy1]
|
||||
fmul st0,st2
|
||||
fsubp
|
||||
fistp dword[dsdx] ;dsdx = (int) (fdy2*d1 - fdy1*d2)
|
||||
ffree st0
|
||||
fincstp
|
||||
fld dword[fdx2]
|
||||
fmul st0,st2
|
||||
fld dword[fdx1]
|
||||
@ -338,6 +324,10 @@ if INTERP_ST eq 1
|
||||
fistp dword[dsdy] ;dsdy = (int) (fdx1*d2 - fdx2*d1)
|
||||
ffree st0
|
||||
fincstp
|
||||
ffree st0 ;free d2
|
||||
fincstp
|
||||
ffree st0 ;free d1
|
||||
fincstp
|
||||
|
||||
mov eax,[ecx+offs_zbup_t]
|
||||
sub eax,[ebx+offs_zbup_t]
|
||||
@ -345,10 +335,8 @@ if INTERP_ST eq 1
|
||||
mov eax,[edx+offs_zbup_t]
|
||||
sub eax,[ebx+offs_zbup_t]
|
||||
mov [d2],eax
|
||||
fild dword[d1]
|
||||
fst dword[d1] ;d1 = p1.t - p0.t
|
||||
fild dword[d2]
|
||||
fst dword[d2] ;d2 = p2.t - p0.t
|
||||
fild dword[d1] ;d1 = p1.t - p0.t
|
||||
fild dword[d2] ;d2 = p2.t - p0.t
|
||||
|
||||
fld dword[fdy1]
|
||||
fmul st0,st1
|
||||
@ -366,6 +354,10 @@ if INTERP_ST eq 1
|
||||
fistp dword[dtdy] ;dtdy = (int) (fdx1*d2 - fdx2*d1)
|
||||
ffree st0
|
||||
fincstp
|
||||
ffree st0 ;free d2
|
||||
fincstp
|
||||
ffree st0 ;free d1
|
||||
fincstp
|
||||
end if
|
||||
|
||||
if INTERP_STZ eq 1
|
||||
@ -374,68 +366,60 @@ if INTERP_STZ eq 1
|
||||
fmul st0,st1
|
||||
fstp dword[ebx+offs_zbup_sz] ;p0.sz = (float) p0.s * p0.z
|
||||
fild dword[ebx+offs_zbup_t]
|
||||
fmul st0,st1
|
||||
fmulp
|
||||
fstp dword[ebx+offs_zbup_tz] ;p0.tz = (float) p0.t * p0.z
|
||||
ffree st0
|
||||
fincstp
|
||||
|
||||
fild dword[ecx+offs_zbup_z]
|
||||
fild dword[ecx+offs_zbup_s]
|
||||
fmul st0,st1
|
||||
fstp dword[ecx+offs_zbup_sz] ;p1.sz = (float) p1.s * p1.z
|
||||
fild dword[ecx+offs_zbup_t]
|
||||
fmul st0,st1
|
||||
fmulp
|
||||
fstp dword[ecx+offs_zbup_tz] ;p1.tz = (float) p1.t * p1.z
|
||||
ffree st0
|
||||
fincstp
|
||||
|
||||
fild dword[edx+offs_zbup_z]
|
||||
fild dword[edx+offs_zbup_s]
|
||||
fmul st0,st1
|
||||
fstp dword[edx+offs_zbup_sz] ;p2.sz = (float) p2.s * p2.z
|
||||
fild dword[edx+offs_zbup_t]
|
||||
fmul st0,st1
|
||||
fmulp
|
||||
fstp dword[edx+offs_zbup_tz] ;p2.tz = (float) p2.t * p2.z
|
||||
ffree st0
|
||||
fincstp
|
||||
|
||||
fld dword[ecx+offs_zbup_sz]
|
||||
fsub dword[ebx+offs_zbup_sz]
|
||||
fst dword[d1] ;d1 = p1.sz - p0.sz
|
||||
fsub dword[ebx+offs_zbup_sz] ;d1 = p1.sz - p0.sz
|
||||
fld dword[edx+offs_zbup_sz]
|
||||
fsub dword[ebx+offs_zbup_sz]
|
||||
fst dword[d2] ;d2 = p2.sz - p0.sz
|
||||
fsub dword[ebx+offs_zbup_sz] ;d2 = p2.sz - p0.sz
|
||||
|
||||
fld dword[fdy1]
|
||||
fmul st0,st1
|
||||
fld dword[fdy2]
|
||||
fmul st0,st3
|
||||
fsub st0,st1
|
||||
fistp dword[dszdx] ;dszdx = (int) (fdy2*d1 - fdy1*d2)
|
||||
ffree st0
|
||||
fincstp
|
||||
fmul st0,st2
|
||||
fld dword[fdy1]
|
||||
fmul st0,st2
|
||||
fsubp
|
||||
fstp dword[dszdx] ;dszdx = (fdy2*d1 - fdy1*d2)
|
||||
fld dword[fdx2]
|
||||
fmul st0,st2
|
||||
fld dword[fdx1]
|
||||
fmul st0,st2
|
||||
fsub st0,st1
|
||||
fistp dword[dszdy] ;dszdy = (int) (fdx1*d2 - fdx2*d1)
|
||||
fstp dword[dszdy] ;dszdy = (fdx1*d2 - fdx2*d1)
|
||||
ffree st0
|
||||
fincstp
|
||||
ffree st0 ;free d2
|
||||
fincstp
|
||||
ffree st0 ;free d1
|
||||
fincstp
|
||||
|
||||
fld dword[ecx+offs_zbup_tz]
|
||||
fsub dword[ebx+offs_zbup_tz]
|
||||
fst dword[d1] ;d1 = p1.tz - p0.tz
|
||||
fsub dword[ebx+offs_zbup_tz] ;d1 = p1.tz - p0.tz
|
||||
fld dword[edx+offs_zbup_tz]
|
||||
fsub dword[ebx+offs_zbup_tz]
|
||||
fst dword[d2] ;d2 = p2.tz - p0.tz
|
||||
fsub dword[ebx+offs_zbup_tz] ;d2 = p2.tz - p0.tz
|
||||
|
||||
fld dword[fdy1]
|
||||
fmul st0,st1
|
||||
fld dword[fdy2]
|
||||
fmul st0,st3
|
||||
fsub st0,st1
|
||||
fistp dword[dtzdx] ;dtzdx = (int) (fdy2*d1 - fdy1*d2)
|
||||
fstp dword[dtzdx] ;dtzdx = (fdy2*d1 - fdy1*d2)
|
||||
ffree st0
|
||||
fincstp
|
||||
fld dword[fdx2]
|
||||
@ -443,13 +427,16 @@ if INTERP_STZ eq 1
|
||||
fld dword[fdx1]
|
||||
fmul st0,st2
|
||||
fsub st0,st1
|
||||
fistp dword[dtzdy] ;dtzdy = (int) (fdx1*d2 - fdx2*d1)
|
||||
fstp dword[dtzdy] ;dtzdy = (fdx1*d2 - fdx2*d1)
|
||||
ffree st0
|
||||
fincstp
|
||||
ffree st0 ;free d2
|
||||
fincstp
|
||||
ffree st0 ;free d1
|
||||
fincstp
|
||||
end if
|
||||
|
||||
; screen coordinates
|
||||
|
||||
mov eax,[zb]
|
||||
mov edx,[eax+offs_zbuf_linesize]
|
||||
imul edx,[ebx+offs_zbup_y]
|
||||
@ -465,10 +452,13 @@ end if
|
||||
|
||||
mov dword[part],0
|
||||
.cycle_0:
|
||||
if DEBUG ;(3)
|
||||
stdcall dbg_print,txt_sp,m_3
|
||||
end if
|
||||
mov ebx,[p0]
|
||||
mov ecx,[p1]
|
||||
mov edx,[p2]
|
||||
cmp dword[part],0
|
||||
cmp dword[part],0 ;if (part == 0)
|
||||
jne .els_0
|
||||
mov dword[update_left],1
|
||||
mov dword[update_right],1
|
||||
@ -493,18 +483,20 @@ end if
|
||||
jmp .end_0
|
||||
.els_0:
|
||||
; second part
|
||||
mov dword[update_left],0
|
||||
mov dword[update_right],1
|
||||
fldz
|
||||
fld dword[fz]
|
||||
fcompp ;if (fz > 0)
|
||||
fstsw ax
|
||||
sahf
|
||||
jbe .els_2
|
||||
mov dword[update_left],0
|
||||
mov dword[update_right],1
|
||||
mov [pr1],ecx
|
||||
mov [pr2],edx
|
||||
jmp .end_2
|
||||
.els_2:
|
||||
mov dword[update_left],1
|
||||
mov dword[update_right],0
|
||||
mov [l1],ecx
|
||||
mov [l2],edx
|
||||
.end_2:
|
||||
@ -515,37 +507,78 @@ end if
|
||||
.end_0:
|
||||
|
||||
; compute the values for the left edge
|
||||
|
||||
cmp dword[update_left],0 ;if (update_left)
|
||||
je .end_upd_l
|
||||
mov ebx,[l1]
|
||||
mov ecx,[l2]
|
||||
mov edx,[ecx+offs_zbup_y]
|
||||
sub edx,[ebx+offs_zbup_y]
|
||||
mov [dy1],edx ;dy1 = l2.y - l1.y
|
||||
mov eax,[ecx+offs_zbup_x]
|
||||
sub eax,[ebx+offs_zbup_x]
|
||||
mov [dx1],eax ;dx1 = l2.x - l1.x
|
||||
mov eax,[ecx+offs_zbup_y]
|
||||
sub eax,[ebx+offs_zbup_y]
|
||||
mov [dy1],eax ;dy1 = l2.y - l1.y
|
||||
cmp eax,0 ;if (dy1 > 0)
|
||||
cmp edx,0 ;if (dy1 > 0)
|
||||
jle .els_3
|
||||
mov eax,[dx1]
|
||||
shl eax,16
|
||||
xor edx,edx
|
||||
cmp eax,0
|
||||
jl .otr_dx1
|
||||
shl eax,16
|
||||
div dword[dy1] ;eax = (dx1 << 16) / dy1
|
||||
jmp .end_3
|
||||
.otr_dx1:
|
||||
neg eax
|
||||
inc eax
|
||||
shl eax,16
|
||||
div dword[dy1] ;eax = (-dx1 << 16) / dy1
|
||||
neg eax
|
||||
inc eax
|
||||
jmp .end_3
|
||||
.els_3:
|
||||
xor eax,eax
|
||||
.end_3:
|
||||
mov edx,[ebx+offs_zbup_x]
|
||||
mov [x1],edx
|
||||
mov dword[error],0
|
||||
mov [x1],edx ;x1 = l1.x
|
||||
mov dword[error],0 ;error = 0
|
||||
mov dword[derror],eax
|
||||
and dword[derror],0xffff
|
||||
and dword[derror],0xffff ;derror = eax & 0x0000ffff
|
||||
shr eax,16
|
||||
mov [dxdy_min],eax
|
||||
mov [dxdy_min],eax ;dxdy_min = eax >> 16
|
||||
inc eax
|
||||
mov [dxdy_max],eax
|
||||
|
||||
if DEBUG ;(4) update_left [dx1], [dy1], [dxdy_min], [dxdy_max]
|
||||
push ecx edi
|
||||
mov ecx,80
|
||||
lea edi,[buf_param]
|
||||
mov eax,[dx1]
|
||||
stdcall convert_int_to_str,ecx
|
||||
stdcall str_n_cat,edi,txt_zp_sp,2
|
||||
stdcall str_len,edi
|
||||
add edi,eax
|
||||
sub ecx,eax
|
||||
|
||||
mov eax,[dy1]
|
||||
stdcall convert_int_to_str,ecx
|
||||
stdcall str_n_cat,edi,txt_zp_sp,2
|
||||
stdcall str_len,edi
|
||||
add edi,eax
|
||||
sub ecx,eax
|
||||
|
||||
mov eax,[dxdy_min]
|
||||
stdcall convert_int_to_str,ecx
|
||||
stdcall str_n_cat,edi,txt_zp_sp,2
|
||||
stdcall str_len,edi
|
||||
add edi,eax
|
||||
sub ecx,eax
|
||||
|
||||
mov eax,[dxdy_max]
|
||||
stdcall convert_int_to_str,ecx
|
||||
|
||||
stdcall str_n_cat,edi,txt_nl,2
|
||||
stdcall dbg_print,m_4,buf_param
|
||||
pop edi ecx
|
||||
end if
|
||||
|
||||
if INTERP_Z eq 1
|
||||
mov eax,[l1]
|
||||
mov eax,[eax+offs_zbup_z]
|
||||
@ -585,7 +618,6 @@ if INTERP_RGB eq 1
|
||||
mov [dbdl_min],eax ;dbdl_min = (dbdy +dbdx*dxdy_min)
|
||||
add eax,[dbdx]
|
||||
mov [dbdl_max],eax ;dbdl_max = dbdl_min +dbdx
|
||||
|
||||
end if
|
||||
if INTERP_ST eq 1
|
||||
mov ebx,[l1]
|
||||
@ -635,29 +667,85 @@ end if
|
||||
je .end_upd_r
|
||||
mov ebx,[pr1]
|
||||
mov ecx,[pr2]
|
||||
mov edx,[ebx+offs_zbup_x]
|
||||
mov eax,[ecx+offs_zbup_x]
|
||||
sub eax,[ebx+offs_zbup_x]
|
||||
mov [dx2],eax ;dx2 = pr2.x - pr1.x
|
||||
mov eax,[ecx+offs_zbup_y]
|
||||
sub eax,[ebx+offs_zbup_y]
|
||||
mov [dy2],eax ;dy2 = pr2.y - pr1.y
|
||||
cmp eax,0 ;if (dy2 > 0)
|
||||
sub eax,edx
|
||||
;mov [dx2],eax ;dx2 = pr2.x - pr1.x
|
||||
shl edx,16
|
||||
mov [x2],edx ; x2 = pr1.x << 16
|
||||
mov edx,[ecx+offs_zbup_y]
|
||||
sub edx,[ebx+offs_zbup_y]
|
||||
mov [dy2],edx ;dy2 = pr2.y - pr1.y
|
||||
cmp edx,0 ;if (dy2 > 0)
|
||||
jle .els_4
|
||||
mov eax,[dx2]
|
||||
shl eax,16
|
||||
xor edx,edx
|
||||
cmp eax,0
|
||||
jl .otr_dx2
|
||||
shl eax,16
|
||||
div dword[dy2] ;eax = (dx2 << 16) / dy2
|
||||
jmp .end_4
|
||||
.otr_dx2:
|
||||
neg eax
|
||||
inc eax ;dx2 *= -1
|
||||
shl eax,16
|
||||
div dword[dy2] ;eax = (-dx2 << 16) / dy2
|
||||
neg eax
|
||||
inc eax
|
||||
jmp .end_4
|
||||
.els_4:
|
||||
xor eax,eax
|
||||
.end_4:
|
||||
mov [dx2dy2],eax
|
||||
|
||||
if DEBUG ;(5) update_right [dx2dy2], [dy2], [pr1.x], [pr2.x]
|
||||
push ecx edi
|
||||
mov eax,[dx2dy2]
|
||||
shr eax,16
|
||||
mov ecx,80
|
||||
lea edi,[buf_param]
|
||||
stdcall convert_int_to_str,ecx
|
||||
stdcall str_n_cat,edi,txt_zp_sp,2
|
||||
stdcall str_len,edi
|
||||
add edi,eax
|
||||
sub ecx,eax
|
||||
|
||||
mov eax,[dy2]
|
||||
stdcall convert_int_to_str,ecx
|
||||
stdcall str_n_cat,edi,txt_zp_sp,2
|
||||
stdcall str_len,edi
|
||||
add edi,eax
|
||||
sub ecx,eax
|
||||
|
||||
mov ebx,[pr1]
|
||||
mov eax,[ebx+offs_zbup_x]
|
||||
shl eax,16
|
||||
mov [x2],eax ; x2 = pr1.x << 16
|
||||
stdcall convert_int_to_str,ecx
|
||||
stdcall str_n_cat,edi,txt_zp_sp,2
|
||||
stdcall str_len,edi
|
||||
add edi,eax
|
||||
sub ecx,eax
|
||||
|
||||
mov ebx,[pr2]
|
||||
mov eax,[ebx+offs_zbup_x]
|
||||
stdcall convert_int_to_str,ecx
|
||||
|
||||
stdcall str_n_cat,edi,txt_nl,2
|
||||
stdcall dbg_print,m_5,buf_param
|
||||
pop edi ecx
|
||||
end if
|
||||
.end_upd_r:
|
||||
|
||||
; we draw all the scan line of the part
|
||||
if DEBUG ;[nb_lines]
|
||||
push ecx edi
|
||||
mov eax,[nb_lines]
|
||||
mov ecx,80
|
||||
lea edi,[buf_param]
|
||||
stdcall convert_int_to_str,ecx
|
||||
|
||||
stdcall str_n_cat,edi,txt_nl,2
|
||||
stdcall dbg_print,f_fill_tr_nl,buf_param
|
||||
pop edi ecx
|
||||
end if
|
||||
|
||||
.beg_w_lin:
|
||||
cmp dword[nb_lines],0 ;while (nb_lines>0)
|
||||
@ -674,6 +762,34 @@ else
|
||||
mov [n],eax ;n = (x2 >> 16) - x1
|
||||
imul edi,PSZB
|
||||
add edi,[pp1] ;pp = pp1 + x1 * PSZB
|
||||
|
||||
if DEBUG ;[n], [x1], [x2]>>16
|
||||
push ecx edi
|
||||
mov eax,[n]
|
||||
mov ecx,80
|
||||
lea edi,[buf_param]
|
||||
stdcall convert_int_to_str,ecx
|
||||
stdcall str_n_cat,edi,txt_zp_sp,2
|
||||
stdcall str_len,edi
|
||||
add edi,eax
|
||||
sub ecx,eax
|
||||
|
||||
mov eax,[x1]
|
||||
stdcall convert_int_to_str,ecx
|
||||
stdcall str_n_cat,edi,txt_zp_sp,2
|
||||
stdcall str_len,edi
|
||||
add edi,eax
|
||||
sub ecx,eax
|
||||
|
||||
mov eax,[x2]
|
||||
shr eax,16
|
||||
stdcall convert_int_to_str,ecx
|
||||
|
||||
stdcall str_n_cat,edi,txt_nl,2
|
||||
stdcall dbg_print,f_fill_tr_nll,buf_param
|
||||
pop edi ecx
|
||||
end if
|
||||
|
||||
if INTERP_Z eq 1
|
||||
mov eax,[x1]
|
||||
shl eax,1
|
||||
@ -702,7 +818,11 @@ if INTERP_STZ eq 1
|
||||
mov eax,[tz1]
|
||||
mov [t_z],eax
|
||||
end if
|
||||
|
||||
align 4
|
||||
.cycle_1: ;while (n>=3)
|
||||
cmp dword[n],3
|
||||
jl .cycle_2
|
||||
PUT_PIXEL 0
|
||||
PUT_PIXEL 1
|
||||
PUT_PIXEL 2
|
||||
@ -712,23 +832,24 @@ if INTERP_Z eq 1
|
||||
end if
|
||||
add edi,4*PSZB
|
||||
sub dword[n],4
|
||||
cmp dword[n],3
|
||||
jge .cycle_1
|
||||
jmp .cycle_1
|
||||
.cycle_2: ;while (n>=0)
|
||||
cmp dword[n],0
|
||||
jl .cycle_2_end
|
||||
PUT_PIXEL 0
|
||||
if INTERP_Z eq 1
|
||||
add dword[pz],2 ;=sizeof(uint)
|
||||
end if
|
||||
add edi,PSZB
|
||||
dec dword[n]
|
||||
cmp dword[n],0
|
||||
jge .cycle_2
|
||||
end if
|
||||
jmp .cycle_2
|
||||
.cycle_2_end:
|
||||
end if ;проверка от макроса DRAW_LINE
|
||||
|
||||
; left edge
|
||||
mov eax,[derror]
|
||||
add [error],eax
|
||||
cmp eax,0 ;if (error > 0)
|
||||
cmp dword[error],0 ;if (error > 0)
|
||||
jle .els_er
|
||||
sub dword[error],0x10000
|
||||
mov eax,[dxdy_max]
|
||||
@ -808,6 +929,7 @@ end if
|
||||
cmp dword[part],2
|
||||
jl .cycle_0
|
||||
.end_f:
|
||||
popad
|
||||
ret
|
||||
endp
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user