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Dogcows Code - chaz/openbox/blob - otk/truerendercontrol.cc
1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
5 #include "truerendercontrol.hh"
7 #include "screeninfo.hh"
9 #include "rendertexture.hh"
14 #endif // HAVE_STDLIB_H
16 #include "../src/gettext.h"
17 #define _(str) gettext(str)
22 TrueRenderControl::TrueRenderControl(int screen
)
23 : RenderControl(screen
),
28 const ScreenInfo
*info
= display
->screenInfo(_screen
);
29 XImage
*timage
= XCreateImage(**display
, info
->visual(), info
->depth(),
30 ZPixmap
, 0, NULL
, 1, 1, 32, 0);
31 printf("Initializing TrueColor RenderControl\n");
33 unsigned long red_mask
, green_mask
, blue_mask
;
35 // find the offsets for each color in the visual's masks
36 red_mask
= timage
->red_mask
;
37 green_mask
= timage
->green_mask
;
38 blue_mask
= timage
->blue_mask
;
40 while (! (red_mask
& 1)) { _red_offset
++; red_mask
>>= 1; }
41 while (! (green_mask
& 1)) { _green_offset
++; green_mask
>>= 1; }
42 while (! (blue_mask
& 1)) { _blue_offset
++; blue_mask
>>= 1; }
44 _red_shift
= _green_shift
= _blue_shift
= 8;
45 while (red_mask
) { red_mask
>>= 1; _red_shift
--; }
46 while (green_mask
) { green_mask
>>= 1; _green_shift
--; }
47 while (blue_mask
) { blue_mask
>>= 1; _blue_shift
--; }
51 TrueRenderControl::~TrueRenderControl()
53 printf("Destroying TrueColor RenderControl\n");
56 void TrueRenderControl::drawGradientBackground(
57 Surface
&sf
, const RenderTexture
&texture
) const
60 int w
= sf
.size().width(), h
= sf
.size().height();
63 const ScreenInfo
*info
= display
->screenInfo(_screen
);
64 XImage
*im
= XCreateImage(**display
, info
->visual(), info
->depth(),
65 ZPixmap
, 0, NULL
, w
, h
, 32, 0);
66 im
->byte_order
= endian
;
67 pixel32
*data
= new pixel32
[h
*w
];
70 switch (texture
.gradient()) {
71 case RenderTexture::Vertical
:
72 verticalGradient(sf
, texture
, data
);
74 case RenderTexture::Diagonal
:
75 diagonalGradient(sf
, texture
, data
);
77 case RenderTexture::CrossDiagonal
:
78 crossDiagonalGradient(sf
, texture
, data
);
81 printf("unhandled gradient\n");
84 if (texture
.relief() == RenderTexture::Flat
&& texture
.border()) {
85 r
= texture
.borderColor().red();
86 g
= texture
.borderColor().green();
87 b
= texture
.borderColor().blue();
88 current
= (r
<< default_red_shift
)
89 + (g
<< default_green_shift
)
90 + (b
<< default_blue_shift
);
91 for (off
= 0, x
= 0; x
< w
; ++x
, off
++) {
92 *(data
+ off
) = current
;
93 *(data
+ off
+ ((h
-1) * w
)) = current
;
95 for (off
= 0, x
= 0; x
< h
; ++x
, off
++) {
96 *(data
+ (off
* w
)) = current
;
97 *(data
+ (off
* w
) + w
- 1) = current
;
101 if (texture
.relief() != RenderTexture::Flat
) {
102 if (texture
.bevel() == RenderTexture::Bevel1
) {
103 for (off
= 1, x
= 1; x
< w
- 1; ++x
, off
++)
104 highlight(data
+ off
,
105 data
+ off
+ (h
-1) * w
,
106 texture
.relief()==RenderTexture::Raised
);
107 for (off
= 0, x
= 0; x
< h
; ++x
, off
++)
108 highlight(data
+ off
* w
,
109 data
+ off
* w
+ w
- 1,
110 texture
.relief()==RenderTexture::Raised
);
113 if (texture
.bevel() == RenderTexture::Bevel2
) {
114 for (off
= 2, x
= 2; x
< w
- 2; ++x
, off
++)
115 highlight(data
+ off
+ w
,
116 data
+ off
+ (h
-2) * w
,
117 texture
.relief()==RenderTexture::Raised
);
118 for (off
= 1, x
= 1; x
< h
-1; ++x
, off
++)
119 highlight(data
+ off
* w
+ 1,
120 data
+ off
* w
+ w
- 2,
121 texture
.relief()==RenderTexture::Raised
);
125 reduceDepth(im
, data
);
127 im
->data
= (char*) data
;
136 void TrueRenderControl::verticalGradient(Surface
&sf
,
137 const RenderTexture
&texture
,
143 int w
= sf
.size().width(), h
= sf
.size().height();
145 dr
= (float)(texture
.secondary_color().red() - texture
.color().red());
148 dg
= (float)(texture
.secondary_color().green() - texture
.color().green());
151 db
= (float)(texture
.secondary_color().blue() - texture
.color().blue());
154 for (int y
= 0; y
< h
; ++y
) {
155 r
= texture
.color().red() + (int)(dr
* y
);
156 g
= texture
.color().green() + (int)(dg
* y
);
157 b
= texture
.color().blue() + (int)(db
* y
);
158 current
= (r
<< default_red_shift
)
159 + (g
<< default_green_shift
)
160 + (b
<< default_blue_shift
);
161 for (int x
= 0; x
< w
; ++x
, ++data
)
166 void TrueRenderControl::diagonalGradient(Surface
&sf
,
167 const RenderTexture
&texture
,
171 float drx
, dgx
, dbx
, dry
, dgy
, dby
;
173 int w
= sf
.size().width(), h
= sf
.size().height();
175 for (int y
= 0; y
< h
; ++y
) {
176 drx
= (float)(texture
.secondary_color().red() - texture
.color().red());
180 dgx
= (float)(texture
.secondary_color().green() - texture
.color().green());
184 dbx
= (float)(texture
.secondary_color().blue() - texture
.color().blue());
187 for (int x
= 0; x
< w
; ++x
, ++data
) {
188 r
= texture
.color().red() + ((int)(drx
* x
) + (int)(dry
* y
))/2;
189 g
= texture
.color().green() + ((int)(dgx
* x
) + (int)(dgy
* y
))/2;
190 b
= texture
.color().blue() + ((int)(dbx
* x
) + (int)(dby
* y
))/2;
191 current
= (r
<< default_red_shift
)
192 + (g
<< default_green_shift
)
193 + (b
<< default_blue_shift
);
199 void TrueRenderControl::crossDiagonalGradient(Surface
&sf
,
200 const RenderTexture
&texture
,
204 float drx
, dgx
, dbx
, dry
, dgy
, dby
;
206 int w
= sf
.size().width(), h
= sf
.size().height();
208 for (int y
= 0; y
< h
; ++y
) {
209 drx
= (float)(texture
.secondary_color().red() - texture
.color().red());
213 dgx
= (float)(texture
.secondary_color().green() - texture
.color().green());
217 dbx
= (float)(texture
.secondary_color().blue() - texture
.color().blue());
220 for (int x
= w
; x
> 0; --x
, ++data
) {
221 r
= texture
.color().red() + ((int)(drx
* (x
-1)) + (int)(dry
* y
))/2;
222 g
= texture
.color().green() + ((int)(dgx
* (x
-1)) + (int)(dgy
* y
))/2;
223 b
= texture
.color().blue() + ((int)(dbx
* (x
-1)) + (int)(dby
* y
))/2;
224 current
= (r
<< default_red_shift
)
225 + (g
<< default_green_shift
)
226 + (b
<< default_blue_shift
);
232 void TrueRenderControl::reduceDepth(XImage
*im
, pixel32
*data
) const
234 // since pixel32 is the largest possible pixel size, we can share the array
237 pixel16
*p
= (pixel16
*) data
;
238 switch (im
->bits_per_pixel
) {
240 if ((_red_offset
!= default_red_shift
) ||
241 (_blue_offset
!= default_blue_shift
) ||
242 (_green_offset
!= default_green_shift
)) {
243 printf("cross endian conversion\n");
244 for (y
= 0; y
< im
->height
; y
++) {
245 for (x
= 0; x
< im
->width
; x
++) {
246 r
= (data
[x
] >> default_red_shift
) & 0xFF;
247 g
= (data
[x
] >> default_green_shift
) & 0xFF;
248 b
= (data
[x
] >> default_blue_shift
) & 0xFF;
249 data
[x
] = (r
<< _red_offset
) + (g
<< _green_offset
) +
257 for (y
= 0; y
< im
->height
; y
++) {
258 for (x
= 0; x
< im
->width
; x
++) {
259 r
= (data
[x
] >> default_red_shift
) & 0xFF;
261 g
= (data
[x
] >> default_green_shift
) & 0xFF;
262 g
= g
>> _green_shift
;
263 b
= (data
[x
] >> default_blue_shift
) & 0xFF;
264 b
= b
>> _blue_shift
;
265 p
[x
] = (r
<< _red_offset
) + (g
<< _green_offset
) + (b
<< _blue_offset
);
268 p
+= im
->bytes_per_line
/2;
272 printf("your bit depth is currently unhandled\n");
276 void TrueRenderControl::highlight(pixel32
*x
, pixel32
*y
, bool raised
) const
288 r
= (*up
>> default_red_shift
) & 0xFF;
290 g
= (*up
>> default_green_shift
) & 0xFF;
292 b
= (*up
>> default_blue_shift
) & 0xFF;
294 if (r
> 255) r
= 255;
295 if (g
> 255) g
= 255;
296 if (b
> 255) b
= 255;
297 *up
= (r
<< default_red_shift
) + (g
<< default_green_shift
)
298 + (b
<< default_blue_shift
);
300 r
= (*down
>> default_red_shift
) & 0xFF;
301 r
= (r
>> 1) + (r
>> 2);
302 g
= (*down
>> default_green_shift
) & 0xFF;
303 g
= (g
>> 1) + (g
>> 2);
304 b
= (*down
>> default_blue_shift
) & 0xFF;
305 b
= (b
>> 1) + (b
>> 2);
306 *down
= (r
<< default_red_shift
) + (g
<< default_green_shift
)
307 + (b
<< default_blue_shift
);
310 void TrueRenderControl::drawBackground(Surface
& sf
,
311 const RenderTexture
&texture
) const
313 assert(_screen
== sf
._screen
);
314 assert(_screen
== texture
.color().screen());
316 if (texture
.gradient() == RenderTexture::Solid
)
317 drawSolidBackground(sf
, texture
);
319 drawGradientBackground(sf
, texture
);
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