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-rw-r--r--src/FbTk/TextureRender.cc73
-rw-r--r--src/FbTk/TextureRender.hh4
2 files changed, 43 insertions, 34 deletions
diff --git a/src/FbTk/TextureRender.cc b/src/FbTk/TextureRender.cc
index dc51d35..c278c2a 100644
--- a/src/FbTk/TextureRender.cc
+++ b/src/FbTk/TextureRender.cc
@@ -22,7 +22,7 @@
22// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23// DEALINGS IN THE SOFTWARE. 23// DEALINGS IN THE SOFTWARE.
24 24
25// $Id: TextureRender.cc,v 1.11 2004/08/31 15:26:39 rathnor Exp $ 25// $Id: TextureRender.cc,v 1.12 2004/10/06 09:30:54 fluxgen Exp $
26 26
27#include "TextureRender.hh" 27#include "TextureRender.hh"
28 28
@@ -49,11 +49,13 @@ TextureRender::TextureRender(ImageControl &imgctrl,
49 control(imgctrl), 49 control(imgctrl),
50 colors(_colors), 50 colors(_colors),
51 ncolors(ncolors), 51 ncolors(ncolors),
52 cpc(imgctrl.colorsPerChannel()),
53 cpccpc(cpc * cpc),
54 red(0), green(0), blue(0),
55 width(static_cast<signed>((w > 0 ? w : 1))), height(static_cast<signed>(h > 0 ? h : 1)),
52 xtable(0), ytable(0) { 56 xtable(0), ytable(0) {
53 57
54 _FB_USES_NLS; 58 _FB_USES_NLS;
55 width = ((signed) w > 0) ? w : 1;
56 height = ((signed) h > 0) ? h : 1;
57 // clamp to "normal" size 59 // clamp to "normal" size
58 if (width > 3200) { 60 if (width > 3200) {
59 cerr<<"TextureRender: "<<_FBTKTEXT(Error, BigWidth, "Warning! Width > 3200 setting Width = 3200", "Image width seems too big, clamping")<<endl; 61 cerr<<"TextureRender: "<<_FBTKTEXT(Error, BigWidth, "Warning! Width > 3200 setting Width = 3200", "Image width seems too big, clamping")<<endl;
@@ -65,30 +67,6 @@ TextureRender::TextureRender(ImageControl &imgctrl,
65 height = 3200; 67 height = 3200;
66 } 68 }
67 69
68 red = new(nothrow) unsigned char[width * height];
69 if (red == 0) {
70 char sbuf[128];
71 sprintf(sbuf, "%d", width*height);
72 throw string("TextureRender::TextureRender(): " + string(_FBTKTEXT(Error, OutOfMemoryRed, "Out of memory while allocating red buffer.", "")) + string(sbuf));
73 }
74
75
76 green = new(nothrow) unsigned char[width * height];
77 if (green == 0) {
78 char sbuf[128];
79 sprintf(sbuf, "%d", width*height);
80 throw string("TextureRender::TextureRender(): " +string(_FBTKTEXT(Error, OutOfMemoryGreen, "Out of memory while allocating green buffer.", ""))+ string(sbuf));
81 }
82
83 blue = new(nothrow) unsigned char[width * height];
84 if (blue == 0) {
85 char sbuf[128];
86 sprintf(sbuf, "%d", width*height);
87 throw string("TextureRender::TextureRender(): " +string(_FBTKTEXT(Error, OutOfMemoryBlue, "Out of memory while allocating blue buffer.", ""))+ string(sbuf));
88 }
89
90 cpc = imgctrl.colorsPerChannel();
91 cpccpc = cpc * cpc;
92 70
93 imgctrl.colorTables(&red_table, &green_table, &blue_table, 71 imgctrl.colorTables(&red_table, &green_table, &blue_table,
94 &red_offset, &green_offset, &blue_offset, 72 &red_offset, &green_offset, &blue_offset,
@@ -98,9 +76,9 @@ TextureRender::TextureRender(ImageControl &imgctrl,
98 76
99 77
100TextureRender::~TextureRender() { 78TextureRender::~TextureRender() {
101 delete [] red; 79 if (red != 0) delete [] red;
102 delete [] green; 80 if (green != 0) delete [] green;
103 delete [] blue; 81 if (blue != 0) delete [] blue;
104} 82}
105 83
106 84
@@ -111,12 +89,39 @@ Pixmap TextureRender::render(const FbTk::Texture &texture) {
111 return ParentRelative; 89 return ParentRelative;
112 else if (texture.type() & FbTk::Texture::SOLID) 90 else if (texture.type() & FbTk::Texture::SOLID)
113 return renderSolid(texture); 91 return renderSolid(texture);
114 else if (texture.type() & FbTk::Texture::GRADIENT) 92 else if (texture.type() & FbTk::Texture::GRADIENT) {
93 allocateColorTables();
115 return renderGradient(texture); 94 return renderGradient(texture);
95 }
116 96
117 return None; 97 return None;
118} 98}
119 99
100void TextureRender::allocateColorTables() {
101 red = new(nothrow) unsigned char[width * height];
102 if (red == 0) {
103 char sbuf[128];
104 sprintf(sbuf, "%d", width*height);
105 throw string("TextureRender::TextureRender(): " + string(_FBTKTEXT(Error, OutOfMemoryRed, "Out of memory while allocating red buffer.", "")) + string(sbuf));
106 }
107
108
109 green = new(nothrow) unsigned char[width * height];
110 if (green == 0) {
111 char sbuf[128];
112 sprintf(sbuf, "%d", width*height);
113 throw string("TextureRender::TextureRender(): " +string(_FBTKTEXT(Error, OutOfMemoryGreen, "Out of memory while allocating green buffer.", ""))+ string(sbuf));
114 }
115
116 blue = new(nothrow) unsigned char[width * height];
117 if (blue == 0) {
118 char sbuf[128];
119 sprintf(sbuf, "%d", width*height);
120 throw string("TextureRender::TextureRender(): " +string(_FBTKTEXT(Error, OutOfMemoryBlue, "Out of memory while allocating blue buffer.", ""))+ string(sbuf));
121 }
122
123
124}
120 125
121Pixmap TextureRender::renderSolid(const FbTk::Texture &texture) { 126Pixmap TextureRender::renderSolid(const FbTk::Texture &texture) {
122 127
@@ -300,7 +305,7 @@ XImage *TextureRender::renderXImage() {
300 305
301 o = image->bits_per_pixel + ((image->byte_order == MSBFirst) ? 1 : 0); 306 o = image->bits_per_pixel + ((image->byte_order == MSBFirst) ? 1 : 0);
302 307
303 if (control.doDither() && width > 1 && height > 1) { 308 if (control.doDither()) {
304 unsigned char dither4[4][4] = { 309 unsigned char dither4[4][4] = {
305 {0, 4, 1, 5}, 310 {0, 4, 1, 5},
306 {6, 2, 7, 3}, 311 {6, 2, 7, 3},
@@ -564,7 +569,9 @@ XImage *TextureRender::renderXImage() {
564 XDestroyImage(image); 569 XDestroyImage(image);
565 return (XImage *) 0; 570 return (XImage *) 0;
566 } 571 }
567} else { 572} else { // end do dither
573
574 // no dither:
568 switch (control.visual()->c_class) { 575 switch (control.visual()->c_class) {
569 case StaticColor: 576 case StaticColor:
570 case PseudoColor: 577 case PseudoColor:
diff --git a/src/FbTk/TextureRender.hh b/src/FbTk/TextureRender.hh
index f07a5c7..0139dcb 100644
--- a/src/FbTk/TextureRender.hh
+++ b/src/FbTk/TextureRender.hh
@@ -22,7 +22,7 @@
22// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23// DEALINGS IN THE SOFTWARE. 23// DEALINGS IN THE SOFTWARE.
24 24
25// $Id: TextureRender.hh,v 1.2 2003/04/28 22:27:29 fluxgen Exp $ 25// $Id: TextureRender.hh,v 1.3 2004/10/06 09:30:54 fluxgen Exp $
26 26
27#ifndef FBTK_TEXTURRENDER_HH 27#ifndef FBTK_TEXTURRENDER_HH
28#define FBTK_TEXTURRENDER_HH 28#define FBTK_TEXTURRENDER_HH
@@ -54,6 +54,8 @@ public:
54 /// scales and renders a pixmap 54 /// scales and renders a pixmap
55 Pixmap renderPixmap(const FbTk::Texture &src_texture); 55 Pixmap renderPixmap(const FbTk::Texture &src_texture);
56private: 56private:
57 /// allocates red, green and blue for gradient rendering
58 void allocateColorTables();
57 /** 59 /**
58 Render to pixmap 60 Render to pixmap
59 @return rendered pixmap 61 @return rendered pixmap