KolibriOS/kolibrios
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possible smooth buffer resizing,

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fix and clean code,
fix and update examples

git-svn-id: svn://kolibrios.org@8069 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
IgorA
2020-09-19 19:57:00 +00:00
parent b60e6d45cf
commit d3fd66f14b
21 changed files with 465 additions and 491 deletions
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48
programs/develop/libraries/TinyGL/asm_fork/kosgl.asm
View File

@@ -40,22 +40,16 @@ ends
align 4
proc gl_resize_viewport uses ebx ecx edx edi esi, context:dword, xsize_ptr:dword, ysize_ptr:dword
xor eax,eax
mov ecx,[xsize_ptr] ; ecx = &xsize
mov edi,[ecx] ; edi = xsize
mov esi,[ysize_ptr] ; esi = &ysize
mov esi,[esi] ; esi = ysize
; we ensure that xsize and ysize are multiples of 2 for the zbuffer.
; TODO: find a better solution
and edi, not 3
and esi, not 3
cmp edi,0
jne @f
cmp esi,0
jne @f
xor eax,eax
or edi,edi
jnz @f
or esi,esi
jnz @f
mov eax,-1
jmp .end_f
@@:
@@ -68,10 +62,10 @@ proc gl_resize_viewport uses ebx ecx edx edi esi, context:dword, xsize_ptr:dword
mov ebx,[context]
mov edx,[ebx+GLContext.opaque] ; edx = (TinyGLContext *)context.opaque
mov [edx+4],edi
mov [edx+12],edi ;d_x = xsize
mov [edx+8],esi
mov [edx+16],esi ;d_y = ysize
mov [edx+TinyGLContext.xsize],edi
mov [edx+TinyGLContext.d_x],edi
mov [edx+TinyGLContext.ysize],esi
mov [edx+TinyGLContext.d_y],esi
; resize the Z buffer
stdcall ZB_resize, dword[ebx+GLContext.zb],0,edi,esi
@@ -87,13 +81,13 @@ proc kosglMakeCurrent uses ebx ecx, win_x0:dword, win_y0:dword, win_x:dword, win
jne .end_f
; create the TinyGL context
mov ecx,[win_x0]
mov [ebx+20],ecx ;ctx.x = win_x0
mov [ebx+TinyGLContext.x],ecx
mov ecx,[win_y0]
mov [ebx+24],ecx ;ctx.y = win_y0
mov [ebx+TinyGLContext.y],ecx
mov ecx,[win_x]
mov [ebx+12],ecx ;ctx.d_x = win_x
mov [ebx+TinyGLContext.d_x],ecx
mov ecx,[win_y]
mov [ebx+16],ecx ;ctx.d_y = win_y
mov [ebx+TinyGLContext.d_y],ecx
; currently, we only support 16 bit rendering
xor eax,eax
@@ -116,8 +110,8 @@ proc kosglMakeCurrent uses ebx ecx, win_x0:dword, win_y0:dword, win_x:dword, win
mov dword[eax+GLContext.gl_resize_viewport],gl_resize_viewport
; set the viewport : we force a call to gl_resize_viewport
dec dword[eax+GLContext.viewport+offs_vpor_xsize]
dec dword[eax+GLContext.viewport+offs_vpor_ysize]
dec dword[eax+GLContext.viewport+GLViewport.xsize]
dec dword[eax+GLContext.viewport+GLViewport.ysize]
stdcall glViewport, 0, 0, [win_x], [win_y]
.end_f:
@@ -132,15 +126,15 @@ proc kosglSwapBuffers uses eax ebx ecx edx esi
; retrieve the current TinyGLContext
call gl_get_context
mov ebx,[eax+GLContext.zb]
mov ebx,[ebx+offs_zbuf_pbuf]
mov ebx,[ebx+ZBuffer.pbuf]
mov esi,[eax+GLContext.opaque] ;esi = &context.opaque
mov eax,7
mov ecx,[esi+12] ;d_x
mov eax,SF_PUT_IMAGE
mov ecx,[esi+TinyGLContext.d_x]
shl ecx,16
mov cx,[esi+16] ;d_y
mov edx,[esi+20] ;x
mov cx,word[esi+TinyGLContext.d_y]
mov edx,[esi+TinyGLContext.x]
shl edx,16
mov dx,[esi+24] ;y
mov dx,word[esi+TinyGLContext.y]
int 0x40
ret
endp