pixlib 0.1

git-svn-id: svn://kolibrios.org@880 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/open watcom/trunk/clib.wpj

@@ -42,8 +42,8 @@ WRect
 WFileName
 10
 clib_r.tgt
-21
+309
-50
+342
 11
 VComponent
 12
@@ -59,5 +59,5 @@ WFileName
 7
 crt.tgt
 0
-12
+8
 8

programs/develop/open watcom/trunk/crt.tgt

@@ -294,7 +294,7 @@ WString
 COBJ
 70
 WVList
-15
+14
 71
 MVState
 72
@@ -367,8 +367,8 @@ WString
 WCC
 89
 WString
-33
+30
-?????Disable stack depth checking
+?????Call/return optimizations
 1
 1
 90
@@ -379,22 +379,22 @@ WString
 WCC
 92
 WString
-30
+25
-?????Call/return optimizations
+?????Relax alias checking
 1
 1
 93
-MCState
+MRState
 94
 WString
 3
 WCC
 95
 WString
-25
+21
-?????Relax alias checking
+?????Compiler default
-1
 1
+0
 96
 MRState
 97
@@ -415,10 +415,10 @@ WString
 WCC
 101
 WString
-21
+37
-?????Compiler default
+?????In-line Pentium Pro instructions
+1
 1
-0
 102
 MRState
 103
@@ -427,10 +427,10 @@ WString
 WCC
 104
 WString
-37
+21
-?????In-line Pentium Pro instructions
+?????Compiler default
-1
 1
+0
 105
 MRState
 106
@@ -439,10 +439,10 @@ WString
 WCC
 107
 WString
-21
+29
-?????Compiler default
+?????In-line with coprocessor
+1
 1
-0
 108
 MRState
 109
@@ -451,10 +451,10 @@ WString
 WCC
 110
 WString
-29
+21
-?????In-line with coprocessor
+??2??32bit Flat model
-1
 1
+0
 111
 MRState
 112
@@ -463,473 +463,461 @@ WString
 WCC
 113
 WString
-21
-??2??32bit Flat model
-1
-0
-114
-MRState
-115
-WString
-3
-WCC
-116
-WString
 22
 ??2??32bit Small model
 1
 1
-117
+114
 WVList
 0
 -1
 1
 1
 0
-118
+115
 MItem
 17
 CLIB\CRT\8087cw.c
-119
+116
 WString
 4
 COBJ
-120
+117
 WVList
 0
-121
+118
 WVList
 0
 68
 1
 1
 0
-122
+119
 MItem
 18
 CLIB\CRT\___argc.c
-123
+120
 WString
 4
 COBJ
-124
+121
 WVList
 0
-125
+122
 WVList
 0
 68
 1
 1
 0
-126
+123
 MItem
 16
 CLIB\CRT\_exit.c
-127
+124
 WString
 4
 COBJ
-128
+125
 WVList
 0
-129
+126
 WVList
 0
 68
 1
 1
 0
-130
+127
 MItem
 16
 CLIB\CRT\abort.c
-131
+128
 WString
 4
 COBJ
-132
+129
 WVList
 0
-133
+130
 WVList
 0
 68
 1
 1
 0
-134
+131
 MItem
 16
 CLIB\CRT\argcv.c
-135
+132
 WString
 4
 COBJ
-136
+133
 WVList
 0
-137
+134
 WVList
 0
 68
 1
 1
 0
-138
+135
 MItem
 17
 CLIB\CRT\atexit.c
-139
+136
 WString
 4
 COBJ
-140
+137
 WVList
 0
-141
+138
 WVList
 0
 68
 1
 1
 0
-142
+139
 MItem
 18
 CLIB\CRT\binmode.c
-143
+140
 WString
 4
 COBJ
-144
+141
 WVList
 0
-145
+142
 WVList
 0
 68
 1
 1
 0
-146
+143
 MItem
 18
 CLIB\CRT\chk8087.c
-147
+144
 WString
 4
 COBJ
-148
+145
 WVList
 0
-149
+146
 WVList
 0
 68
 1
 1
 0
-150
+147
 MItem
 16
 CLIB\CRT\cinit.c
-151
+148
 WString
 4
 COBJ
-152
+149
 WVList
 0
-153
+150
 WVList
 0
 68
 1
 1
 0
-154
+151
 MItem
 18
 CLIB\CRT\cmdname.c
-155
+152
 WString
 4
 COBJ
-156
+153
 WVList
 0
-157
+154
 WVList
 0
 68
 1
 1
 0
-158
+155
 MItem
 18
 CLIB\CRT\commode.c
-159
+156
 WString
 4
 COBJ
-160
+157
 WVList
 0
-161
+158
 WVList
 0
 68
 1
 1
 0
-162
+159
 MItem
 17
 CLIB\CRT\cvtbuf.c
-163
+160
 WString
 4
 COBJ
-164
+161
 WVList
 0
-165
+162
 WVList
 0
 68
 1
 1
 0
-166
+163
 MItem
 16
 CLIB\CRT\errno.c
-167
+164
 WString
 4
 COBJ
-168
+165
 WVList
 0
-169
+166
 WVList
 0
 68
 1
 1
 0
-170
+167
 MItem
 19
 CLIB\CRT\errnovar.c
-171
+168
 WString
 4
 COBJ
-172
+169
 WVList
 0
-173
+170
 WVList
 0
 68
 1
 1
 0
-174
+171
 MItem
 15
 CLIB\CRT\exit.c
-175
+172
 WString
 4
 COBJ
-176
+173
 WVList
 0
-177
+174
 WVList
 0
 68
 1
 1
 0
-178
+175
 MItem
 18
 CLIB\CRT\fltused.c
-179
+176
 WString
 4
 COBJ
-180
+177
 WVList
 0
-181
+178
 WVList
 0
 68
 1
 1
 0
-182
+179
 MItem
 19
 CLIB\CRT\fpexcept.c
-183
+180
 WString
 4
 COBJ
-184
+181
 WVList
 0
-185
+182
 WVList
 0
 68
 1
 1
 0
-186
+183
 MItem
 19
 CLIB\CRT\initargv.c
-187
+184
 WString
 4
 COBJ
-188
+185
 WVList
 0
-189
+186
 WVList
 0
 68
 1
 1
 0
-190
+187
 MItem
 19
 CLIB\CRT\initrtns.c
-191
+188
 WString
 4
 COBJ
-192
+189
 WVList
 0
-193
+190
 WVList
 0
 68
 1
 1
 0
-194
+191
 MItem
 17
 CLIB\CRT\ioexit.c
-195
+192
 WString
 4
 COBJ
-196
+193
 WVList
 0
-197
+194
 WVList
 0
 68
 1
 1
 0
-198
+195
 MItem
 18
 CLIB\CRT\ljmphdl.c
-199
+196
 WString
 4
 COBJ
-200
+197
 WVList
 0
-201
+198
 WVList
 0
 68
 1
 1
 0
-202
+199
 MItem
 19
 CLIB\CRT\main2wnt.c
-203
+200
 WString
 4
 COBJ
-204
+201
 WVList
 0
-205
+202
 WVList
 0
 68
 1
 1
 0
-206
+203
 MItem
 19
 CLIB\CRT\seterrno.c
-207
+204
 WString
 4
 COBJ
-208
+205
 WVList
 0
-209
+206
 WVList
 0
 68
 1
 1
 0
-210
+207
 MItem
 19
 CLIB\CRT\stackwnt.c
-211
+208
 WString
 4
 COBJ
-212
+209
 WVList
 0
-213
+210
 WVList
 0
 68
 1
 1
 0
-214
+211
 MItem
 18
 CLIB\CRT\xmsgwnt.c
-215
+212
 WString
 4
 COBJ
-216
+213
 WVList
 0
-217
+214
 WVList
 0
 68

programs/develop/sdk/trunk/pixlib/demo1.asm

@@ -0,0 +1,270 @@
+
+include 'proc32.inc'
+
+struc system_colors
+{
+  .frame            dd ?
+  .grab             dd ?
+  .grab_button      dd ?
+  .grab_button_text dd ?
+  .grab_text        dd ?
+  .work             dd ?
+  .work_button      dd ?
+  .work_button_text dd ?
+  .work_text        dd ?
+  .work_graph       dd ?
+}
+
+use32
+
+db 'MENUET01'
+dd 1
+dd start
+dd i_end
+dd mem
+dd mem
+dd 0
+dd 0
+
+include 'pixlib.inc'
+
+align 4
+start:
+           call load_pxlib
+           test eax, eax
+           jz .fail
+
+           sub esp, 1024
+
+           mov eax, 9
+           mov ebx, esp
+           mov ecx, -1
+           int 0x40
+
+           movzx ecx, word [esp+0x1E]
+           mov eax, 18
+           mov ebx, 21
+           int 0x40
+
+           mov [slot], eax
+
+           add esp, 1024
+
+           mov  eax,48                      ; get system colors
+           mov  ebx,3
+           mov  ecx,sc
+           mov  edx,10*4
+           int 0x40
+.redraw:
+           call draw_window
+
+.wait_event:
+
+           mov eax, 18
+           mov ebx, 7
+           int 0x40
+           cmp eax, [slot]
+           jne .skip_draw
+
+           sub esp, 1024
+
+           mov eax, 9
+           mov ebx, esp
+           mov ecx, -1
+           int 0x40
+
+           mov edx, [esp+0x22]; xwin
+           mov ecx, [esp+0x26]; ywin
+           add edx, [esp+0x36]
+           add ecx, [esp+0x3A]
+
+           mov eax, [esp+0x3E]
+           mov ebx, [esp+0x42]
+
+           add esp, 1024
+
+           test eax, eax
+           jle .skip_draw
+           test ebx, ebx
+           jle .skip_draw
+
+           push ebx
+           push eax
+           push ecx
+           push edx
+           call _Draw
+           add esp, 16
+
+.skip_draw:
+
+        ;   mov ebx, 1
+        ;   mov eax, 23
+        ;   int 0x40
+
+           mov eax, 11
+           int 0x40
+
+           dec eax                     ;   if event = 1
+          js .wait_event
+
+           jz  .redraw                 ;   jump to redraw handler
+           dec eax                     ;   else if event = 2
+           jz  .key                    ;   jump to key handler
+           dec eax
+           jz  .button
+
+           jmp .wait_event
+
+.button:                               ; button event handler
+           mov al, 17                  ;   get button identifier
+           int 0x40
+
+           cmp ah, 1
+           jne .wait_event             ;   return if button id != 1
+.exit:
+                                       ; restore old screen and cleanup
+.fail:
+           or eax, -1                  ;   exit application
+           int 0x40
+.key:                                  ; key event handler
+           mov al, 2                   ;   get key code
+           int 0x40
+
+           jmp .wait_event
+
+draw_window:
+           mov eax, 12                 ; start drawing
+           mov ebx, 1
+           int 0x40
+
+           xor  eax, eax               ; create and draw the window
+           mov  ebx, 100*65536+320     ; (window_cx)*65536+(window_sx)
+           mov  ecx, 100*65536+240     ; (window_cy)*65536+(window_sy)
+           mov  edx, [sc.work]         ; work area color
+           or   edx, 0x33000000        ; & window type 3
+           mov  edi, title             ; window title
+           int  0x40
+
+           mov  eax, 12                ; finish drawing
+           mov  ebx, 2
+           int  0x40
+
+           ret
+
+DWORD equ dword
+PTR   equ
+
+_Draw:
+        push    ebp
+        xor     edx, edx
+        push    edi
+        push    esi
+        push    ebx
+        sub     esp, 44
+        imul    eax, DWORD PTR [_glSeed], 69069
+        mov     ebp, DWORD PTR [esp+72]
+        mov     ecx, DWORD PTR [esp+76]
+        inc     eax
+        mov     DWORD PTR [esp+32], eax
+        imul    eax, eax, 69069
+        inc     eax
+        mov     DWORD PTR [esp+36], eax
+        imul    eax, eax, 69069
+        inc     eax
+        mov     DWORD PTR [esp+40], eax
+        imul    eax, eax, 69069
+        lea     ebx, [eax+1]
+        mov     eax, ebx
+        div     ebp
+        imul    eax, ebx, 69069
+        lea     ebx, [eax+1]
+        mov     eax, ebx
+        mov     edi, edx
+        xor     edx, edx
+        div     ecx
+        imul    eax, ebx, 69069
+        lea     ebx, [eax+1]
+        mov     eax, ebx
+        mov     esi, edx
+        xor     edx, edx
+        div     ebp
+        imul    eax, ebx, 69069
+        inc     eax
+        mov     DWORD PTR [_glSeed], eax
+        mov     ebp, edx
+        mov     DWORD PTR [esp+28], edx
+        xor     edx, edx
+        div     ecx
+        cmp     ebp, edi
+        mov     ebx, edx
+        jge     L2
+        mov     DWORD PTR [esp+28], edi
+        mov     edi, ebp
+L2:
+        cmp     ebx, esi
+        jge     L4
+        mov     ebx, esi
+        mov     esi, edx
+L4:
+        push    eax
+        mov     ecx, 255
+        push    -16777216
+        mov     eax, DWORD PTR [esp+40]
+        xor     edx, edx
+        div     ecx
+        mov     eax, DWORD PTR [esp+48]
+        mov     ebp, edx
+        xor     edx, edx
+        div     ecx
+        mov     eax, DWORD PTR [esp+44]
+        sal     ebp, 16
+        or      ebp, -16777216
+        mov     DWORD PTR [esp+8], edx
+        or      ebp, edx
+        xor     edx, edx
+        div     ecx
+        lea     eax, [ebx+1]
+        sub     eax, esi
+        sal     edx, 8
+        or      ebp, edx
+        push    ebp
+        push    eax
+        mov     eax, DWORD PTR [esp+44]
+        inc     eax
+        sub     eax, edi
+        push    eax
+        mov     eax, esi
+        add     eax, DWORD PTR [esp+88]
+        push    eax
+        mov     eax, edi
+        add     eax, DWORD PTR [esp+88]
+        push    eax
+        push    -1
+        call    [imp_DrawRect]
+        add     esp, 76
+        pop     ebx
+        pop     esi
+        pop     edi
+        pop     ebp
+        ret
+align 4
+
+count       dd  0
+_glSeed     dd  -365387184
+
+title       db  'Draw rect demo',0
+
+i_end:
+
+align 4
+
+slot         rd 1
+
+sc   system_colors
+
+align 16
+
+
+rb 2048  ;stack
+mem:
+

programs/develop/sdk/trunk/pixlib/demo2.asm

@@ -0,0 +1,278 @@
+
+include 'proc32.inc'
+
+struc system_colors
+{
+  .frame            dd ?
+  .grab             dd ?
+  .grab_button      dd ?
+  .grab_button_text dd ?
+  .grab_text        dd ?
+  .work             dd ?
+  .work_button      dd ?
+  .work_button_text dd ?
+  .work_text        dd ?
+  .work_graph       dd ?
+}
+
+use32
+
+db 'MENUET01'
+dd 1
+dd start
+dd i_end
+dd mem
+dd mem
+dd 0
+dd 0
+
+include 'pixlib.inc'
+
+align 4
+start:
+           call load_pxlib
+           test eax, eax
+           jz .fail
+
+           sub esp, 1024
+
+           mov eax, 9
+           mov ebx, esp
+           mov ecx, -1
+           int 0x40
+
+           movzx ecx, word [esp+0x1E]
+           mov eax, 18
+           mov ebx, 21
+           int 0x40
+
+           mov [slot], eax
+
+           add esp, 1024
+
+           mov  eax,48                      ; get system colors
+           mov  ebx,3
+           mov  ecx,sc
+           mov  edx,10*4
+           int 0x40
+
+           CreateHatch HS_CROSS, 0xFFFFFFFF, 0xFF000000
+           mov [br_cross], eax
+
+           CreateHatch HS_DIAGCROSS, 0xFFFFFFFF, 0xFF000000
+           mov [br_dcross], eax
+
+           CreateHatch HS_HORIZONTAL, 0xFFFFFFFF, 0xFF000000
+           mov [br_horz], eax
+
+           CreateHatch HS_VERTICAL, 0xFFFFFFFF, 0xFF000000
+           mov [br_vert], eax
+
+           CreateHatch HS_FDIAGONAL, 0xFFFFFFFF, 0xFF000000
+           mov [br_fd], eax
+
+           CreateHatch HS_BDIAGONAL, 0xFFFFFFFF, 0xFF000000
+           mov [br_bd], eax
+
+.redraw:
+           call draw_window
+
+.wait_event:
+
+           mov eax, 18
+           mov ebx, 7
+           int 0x40
+           cmp eax, [slot]
+           jne .skip_draw
+
+           sub esp, 1024
+
+           mov eax, 9
+           mov ebx, esp
+           mov ecx, -1
+           int 0x40
+
+           mov edx, [esp+0x22]; xwin
+           mov ecx, [esp+0x26]; ywin
+           add edx, [esp+0x36]
+           add ecx, [esp+0x3A]
+
+           mov eax, [esp+0x3E]  ;width
+           mov ebx, [esp+0x42]  ;height
+
+           add esp, 1024
+
+           cmp eax, 50
+           jle .skip_draw
+
+           cmp ebx, 40
+           jle .skip_draw
+
+           push ebx
+           push eax
+           push ecx
+           push edx
+           call _Draw
+           add esp, 16
+
+.skip_draw:
+
+           mov ebx, 1000
+           mov eax, 23
+           int 0x40
+
+        ;   mov eax, 11
+        ;   int 0x40
+
+           dec eax                     ;   if event = 1
+        ;  js .wait_event
+
+           jz  .redraw                 ;   jump to redraw handler
+           dec eax                     ;   else if event = 2
+           jz  .key                    ;   jump to key handler
+           dec eax
+           jz  .button
+
+           jmp .wait_event
+
+.button:                               ; button event handler
+           mov al, 17                  ;   get button identifier
+           int 0x40
+
+           cmp ah, 1
+           jne .wait_event             ;   return if button id != 1
+.exit:
+                                       ; restore old screen and cleanup
+.fail:
+           or eax, -1                  ;   exit application
+           int 0x40
+.key:                                  ; key event handler
+           mov al, 2                   ;   get key code
+           int 0x40
+
+           jmp .wait_event
+
+draw_window:
+           mov eax, 12                 ; start drawing
+           mov ebx, 1
+           int 0x40
+
+           xor  eax, eax               ; create and draw the window
+           mov  ebx, 100*65536+320     ; (window_cx)*65536+(window_sx)
+           mov  ecx, 100*65536+240     ; (window_cy)*65536+(window_sy)
+           mov  edx, [sc.work]         ; work area color
+           or   edx, 0x33000000        ; & window type 3
+           mov  edi, title             ; window title
+           int  0x40
+
+           mov  eax, 12                ; finish drawing
+           mov  ebx, 2
+           int  0x40
+
+           ret
+
+DWORD equ dword
+PTR   equ
+
+_Draw:
+        push    ebp
+	push	edi
+	push	esi
+	push	ebx
+	mov	ebx, 1431655766
+	sub	esp, 44
+	mov	esi, DWORD PTR [esp+72]
+	mov	ecx, DWORD PTR [esp+76]
+	mov	DWORD PTR [esp+24], -16777216
+	mov	DWORD PTR [esp], -1
+	lea	edi, [esi-40]
+	mov	eax, edi
+	imul	ebx
+	sar	edi, 31
+	lea	eax, [ecx-30]
+	sub	ecx, 10
+	mov	ebp, edx
+	sub	ebp, edi
+	mov	edi, eax
+	shr	edi, 31
+	add	edi, eax
+	lea	edx, [esi-20]
+	lea	eax, [ebp+ebp*2]
+	sub	edx, eax
+	mov	esi, edx
+	shr	esi, 31
+	add	esi, edx
+        sar     esi, 1
+	add	esi, DWORD PTR [esp+64]
+        sar     edi, 1
+	lea	eax, [ebp+10+esi]
+	mov	DWORD PTR [esp+32], eax
+	lea	eax, [edi+edi]
+	sub	ecx, eax
+	mov	ebx, ecx
+	shr	ebx, 31
+	add	ebx, ecx
+        sar     ebx, 1
+	add	ebx, DWORD PTR [esp+68]
+	lea	edx, [esi+20+ebp*2]
+	mov	DWORD PTR [esp+36], edx
+	lea	eax, [ebx+10+edi]
+	mov	DWORD PTR [esp+40], eax
+
+        FillRect -1, esi, ebx,ebp, edi, [br_fd], 0xFF000000
+
+        mov     edx, DWORD PTR [esp+32]
+        FillRect -1, edx, ebx, ebp, edi, [br_cross], 0xFF000000
+
+	mov	eax, DWORD PTR [esp+36]
+        FillRect -1, eax, ebx, ebp, edi, [br_horz],0xFF000000
+
+	mov	edx, DWORD PTR [esp+40]
+        FillRect -1, esi, edx, ebp, edi, [br_bd], 0xFF000000
+
+	mov	edx, DWORD PTR [esp+32]
+	mov	eax, DWORD PTR [esp+40]
+        FillRect -1, edx, eax, ebp, edi, [br_dcross], 0xFF000000
+
+	mov	edx, DWORD PTR [esp+36]
+	mov	eax, DWORD PTR [esp+40]
+        FillRect -1, edx, eax, ebp, edi, [br_vert], 0xFF000000
+
+        call    [imp_FillRect]
+
+
+	add	esp, 44
+	pop	ebx
+	pop	esi
+	pop	edi
+	pop	ebp
+        ret
+
+align 4
+
+
+count       dd  0
+
+title       db  'Hatches',0
+
+i_end:
+
+align 4
+
+slot         rd 1
+
+br_fd        rd 1
+br_bd        rd 1
+br_cross     rd 1
+br_dcross    rd 1
+br_horz      rd 1
+br_vert      rd 1
+
+sc   system_colors
+
+align 16
+
+
+rb 2048  ;stack
+mem:
+

programs/develop/sdk/trunk/pixlib/readme.txt

@@ -8,7 +8,14 @@ handle CreateHatchBrush(int hatch, color_t bkcolor, color_t fcolor);
 
 Создать штрихованную кисть размером 8х8 пикселей
 
-hatch     тип штриховки
+hatch     тип штриховки:
+
+          HS_HORIZONTAL   -------
+          HS_VERTICAL     |||||||
+          HS_FDIAGONAL    \\\\\\\
+          HS_BDIAGONAL    ///////
+          HS_CROSS        +++++++
+          HS_DIAGCROSS    xxxxxxx
 
 bkcolor   цвет "0"
 
@@ -176,10 +183,10 @@ int Blit(handle dst_pixmap, int dst_x, int dst_y,
 
 Скопировать прямоугольную область пикселей.
 
-dst_pixmap    логический номер битмапа в который будет производится
+dst_pixmap    логический номер битмапа в который будет производитс
               копирование. SCR_PIXMAP для первичного экрана.
 
-dst_x, dst_y  координаты левого верхнего угла области назначения
+dst_x, dst_y  координаты левого верхнего угла области назначени
 
 src_pixmap    логический номер битмапа - источника пикселей.
               SCR_PIXMAP для первичного экрана.
@@ -201,10 +208,10 @@ int TransparentBlit(handle dst_pixmap, int dst_x, int dst_y,
 
 Скопировать прямоугольную область пикселей используя прозрачный цвет.
 
-dst_pixmap    логический номер битмапа в который будет производится
+dst_pixmap    логический номер битмапа в который будет производитс
               копирование. SCR_PIXMAP для первичного экрана.
 
-dst_x, dst_y  координаты левого верхнего угла области назначения
+dst_x, dst_y  координаты левого верхнего угла области назначени
 
 src_pixmap    логический номер битмапа - источника пикселей.
               SCR_PIXMAP для первичного экрана.

programs/system/drivers/ati2d/accel_2d.inc

@@ -204,14 +204,14 @@ int DrawRect(io_draw_t* draw)
               OUTREG(R5XX_DST_WIDTH_HEIGHT,(w<<16)|1);
               h--;
            }
-           if( x0 == draw->x0)
+           if( (h > 0) && (x0 == draw->x0))
            {
               R5xxFIFOWait(2);
 
               OUTREG(R5XX_DST_Y_X,(y0<<16)|x0);
               OUTREG(R5XX_DST_WIDTH_HEIGHT,(1<<16)|h);
            }
-           if( x1 == xend)
+           if( (h > 0) && (x1 == xend))
            {
               R5xxFIFOWait(2);
 
@@ -332,14 +332,14 @@ int FillRect(io_fill_t *fill)
               OUTREG(R5XX_DST_WIDTH_HEIGHT,(w<<16)|1);
               h--;
            }
-           if( x0 == fill->x)
+           if( (h > 0) && (x0 == fill->x))
            {
               R5xxFIFOWait(2);
 
               OUTREG(R5XX_DST_Y_X,(y0<<16)|x0);
               OUTREG(R5XX_DST_WIDTH_HEIGHT,(1<<16)|h);
            }
-           if( x1 == xend)
+           if( (h > 0) && (x1 == xend))
            {
               R5xxFIFOWait(2);