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Dogcows Code - chaz/openbox/blob - otk/truerendercontrol.cc
99fa74f3117d2ba824ffa46fea8cf9f86a63557a
1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
4 # include "../config.h"
5 #endif // HAVE_CONFIG_H
7 #include "truerendercontrol.hh"
9 #include "screeninfo.hh"
11 #include "rendertexture.hh"
16 #endif // HAVE_STDLIB_H
19 #define _(str) gettext(str)
24 TrueRenderControl::TrueRenderControl(int screen
)
25 : RenderControl(screen
),
30 printf("Initializing TrueColor RenderControl\n");
32 Visual
*visual
= display
->screenInfo(_screen
)->visual();
33 unsigned long red_mask
, green_mask
, blue_mask
;
35 // find the offsets for each color in the visual's masks
36 red_mask
= visual
->red_mask
;
37 green_mask
= visual
->green_mask
;
38 blue_mask
= visual
->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
--; }
50 TrueRenderControl::~TrueRenderControl()
52 printf("Destroying TrueColor RenderControl\n");
58 static inline void renderPixel(XImage
*im
, unsigned char *dp
,
61 unsigned int bpp
= im
->bits_per_pixel
+ (im
->byte_order
== MSBFirst
? 1 : 0);
98 assert(false); // wtf?
102 void TrueRenderControl::drawGradientBackground(
103 Surface
&sf
, const RenderTexture
&texture
) const
105 int w
= sf
.width(), h
= sf
.height(), off
, x
, y
;
107 const ScreenInfo
*info
= display
->screenInfo(_screen
);
108 XImage
*im
= XCreateImage(**display
, info
->visual(), info
->depth(),
109 ZPixmap
, 0, NULL
, w
, h
, 32, 0);
111 pixel32
*data
= new pixel32
[sf
.height()*sf
.width()];
116 //XXX: move this to seperate vgrad function
117 dr
= (float)(texture
.secondary_color().red() - texture
.color().red());
118 dr
/= (float)sf
.height();
120 dg
= (float)(texture
.secondary_color().green() - texture
.color().green());
121 dg
/= (float)sf
.height();
123 db
= (float)(texture
.secondary_color().blue() - texture
.color().blue());
124 db
/= (float)sf
.height();
126 for (y
= 0; y
< h
; ++y
) {
127 r
= texture
.color().red() + (int)(dr
* y
);
128 g
= texture
.color().green() + (int)(dg
* y
);
129 b
= texture
.color().blue() + (int)(db
* y
);
133 for (x
= 0; x
< w
; ++x
, dp
++)
138 if (texture
.relief() == RenderTexture::Flat
&& texture
.border()) {
139 r
= texture
.borderColor().red();
140 g
= texture
.borderColor().green();
141 b
= texture
.borderColor().blue();
145 for (off
= 0, x
= 0; x
< w
; ++x
, off
++) {
146 *(data
+ off
) = current
;
147 *(data
+ off
+ ((h
-1) * w
)) = current
;
149 for (off
= 0, x
= 0; x
< h
; ++x
, off
++) {
150 *(data
+ (off
* w
)) = current
;
151 *(data
+ (off
* w
) + w
- 1) = current
;
155 if (texture
.relief() != RenderTexture::Flat
) {
156 if (texture
.bevel() == RenderTexture::Bevel1
) {
157 for (off
= 1, x
= 1; x
< w
- 1; ++x
, off
++)
158 highlight(data
+ off
,
159 data
+ off
+ (h
-1) * w
,
160 texture
.relief()==RenderTexture::Raised
);
161 for (off
= 0, x
= 0; x
< h
; ++x
, off
++)
162 highlight(data
+ off
* w
,
163 data
+ off
* w
+ w
- 1,
164 texture
.relief()==RenderTexture::Raised
);
167 if (texture
.bevel() == RenderTexture::Bevel2
) {
168 for (off
= 2, x
= 2; x
< w
- 2; ++x
, off
++)
169 highlight(data
+ off
+ w
,
170 data
+ off
+ (h
-2) * w
,
171 texture
.relief()==RenderTexture::Raised
);
172 for (off
= 1, x
= 1; x
< h
-1; ++x
, off
++)
173 highlight(data
+ off
* w
+ 1,
174 data
+ off
* w
+ w
- 2,
175 texture
.relief()==RenderTexture::Raised
);
179 reduceDepth(im
, data
);
181 im
->data
= (char*) data
;
190 void TrueRenderControl::reduceDepth(XImage
*im
, pixel32
*data
) const
194 pixel16
*p
= (pixel16
*)data
;
195 switch (im
->bits_per_pixel
) {
199 for (y
= 0; y
< im
->height
; y
++) {
200 for (x
= 0; x
< im
->width
; x
++) {
201 r
= (data
[x
] >> 16) & 0xFF;
203 g
= (data
[x
] >> 8) & 0xFF;
204 g
= g
>> _green_shift
;
206 b
= b
>> _blue_shift
;
207 p
[x
] = (r
<< _red_offset
) + (g
<< _green_offset
) + (b
<< _blue_offset
);
210 p
+= im
->bytes_per_line
/2;
214 printf("your bit depth is currently unhandled\n");
218 void TrueRenderControl::highlight(pixel32
*x
, pixel32
*y
, bool raised
) const
230 r
= (*up
>> 16) & 0xFF;
232 g
= (*up
>> 8) & 0xFF;
236 if (r
> 255) r
= 255;
237 if (g
> 255) g
= 255;
238 if (b
> 255) b
= 255;
239 *up
= (r
<< 16) + (g
<< 8) + b
;
241 r
= (*down
>> 16) & 0xFF;
242 r
= (r
>> 1) + (r
>> 2);
243 g
= (*down
>> 8) & 0xFF;
244 g
= (g
>> 1) + (g
>> 2);
246 b
= (b
>> 1) + (b
>> 2);
247 *down
= (r
<< 16) + (g
<< 8) + b
;
249 void TrueRenderControl::drawBackground(Surface
& sf
,
250 const RenderTexture
&texture
) const
252 assert(_screen
== sf
._screen
);
253 assert(_screen
== texture
.color().screen());
255 if (texture
.gradient() == RenderTexture::Solid
) {
256 drawSolidBackground(sf
, texture
);
258 drawGradientBackground(sf
, texture
);
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