Fix binding of vs[tflmr]_[fb]g_color

When the function is not present, we must return 0,
not random garbage from the stack

Author: th-otto

n_vsf_bg_color.c

@@ -26,6 +26,7 @@ vsf_bg_color (short handle, long color_space, COLOR_ENTRY * bg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *bg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP_ESC (vdi_params, handle, 201,1, 0,6);
 

n_vsf_fg_color.c

@@ -26,6 +26,7 @@ vsf_fg_color (short handle, long color_space, COLOR_ENTRY * fg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *fg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP_ESC (vdi_params, handle, 200,1, 0,6);
 

n_vsl_bg_color.c

@@ -26,6 +26,7 @@ vsl_bg_color (short handle, long color_space, COLOR_ENTRY * bg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *bg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP_ESC (vdi_params, handle, 201,2, 0,6);
 

n_vsl_fg_color.c

@@ -26,6 +26,7 @@ vsl_fg_color (short handle, long color_space, COLOR_ENTRY * fg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *fg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP_ESC (vdi_params, handle, 200,2, 0,6);
 

n_vsm_bg_color.c

@@ -7,7 +7,7 @@
  *  @param color_space color space
  *  @param bg_color COLOR_ENTRY of background color
  *
- *  @return -1=wrong function number, 0=function not present, 1=all ok 
+ *  @return -1=wrong subfunction number, 0=function not present, 1=all ok 
  *
  *  @since NVDI 5 ?
  *
@@ -26,6 +26,7 @@ vsm_bg_color (short handle, long color_space, COLOR_ENTRY * bg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *bg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP_ESC (vdi_params, handle, 201,3, 0,6);
 

n_vsm_fg_color.c

@@ -26,6 +26,7 @@ vsm_fg_color (short handle, long color_space, COLOR_ENTRY * fg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *fg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP_ESC (vdi_params, handle, 200,3, 0,6);
 

n_vsr_bg_color.c

@@ -7,7 +7,7 @@
  *  @param color_space color space
  *  @param bg_color COLOR_ENTRY of the background color
  *
- *  @return -1=wrong sunfunction number, 0=function not present, 1=all ok
+ *  @return -1=wrong subfunction number, 0=function not present, 1=all ok
  *
  *  @since NVDI 5 ?
  *
@@ -26,6 +26,7 @@ vsr_bg_color (short handle, long color_space, COLOR_ENTRY * bg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *bg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP_ESC (vdi_params, handle, 201,4, 0,6);
 

n_vsr_fg_color.c

@@ -26,6 +26,7 @@ vsr_fg_color (short handle, long color_space, COLOR_ENTRY * fg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *fg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP_ESC (vdi_params, handle, 200,4, 0,6);
 

n_vst_bg_color.c

@@ -26,6 +26,7 @@ vst_bg_color (short handle, long color_space, COLOR_ENTRY * bg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *bg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP (vdi_params, handle, 201, 0,6);
 

n_vst_fg_color.c

@@ -26,6 +26,7 @@ vst_fg_color (short handle, long color_space, COLOR_ENTRY * fg_color)
 
 	vdi_intin_long(0) = color_space;
 	*(COLOR_ENTRY*)&vdi_intin[2] = *fg_color;
+	vdi_intout[0] = 0;
 
 	VDI_TRAP (vdi_params, handle, 200, 0,6);