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authorMathias Gumz <akira at fluxbox dot org>2013-02-06 06:49:54 (GMT)
committerMathias Gumz <akira at fluxbox dot org>2013-02-06 06:49:54 (GMT)
commit6514398bead7926b85b6e5eb7d6276f47a97cd2f (patch)
tree17fd36433e427551c3fd56248593c66c5ae60235 /src/FbTk/TextureRender.cc
parent779618e45d4571bb6a4866aa2e398780f4b4da5d (diff)
downloadfluxbox_pavel-6514398bead7926b85b6e5eb7d6276f47a97cd2f.zip
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Branchless code for interlacing a texture
Diffstat (limited to 'src/FbTk/TextureRender.cc')
-rw-r--r--src/FbTk/TextureRender.cc40
1 files changed, 15 insertions, 25 deletions
diff --git a/src/FbTk/TextureRender.cc b/src/FbTk/TextureRender.cc
index 4623417..93c91f1 100644
--- a/src/FbTk/TextureRender.cc
+++ b/src/FbTk/TextureRender.cc
@@ -85,12 +85,14 @@ struct RGBA {
85 color.b = PRE_MULTIPLY_0_75[color.b]; 85 color.b = PRE_MULTIPLY_0_75[color.b];
86 } 86 }
87 87
88 static void noop(RGBA& color) { }
88 89
89 typedef void (*colorFunc)(RGBA&); 90 typedef void (*colorFunc)(RGBA&);
90 static const colorFunc pseudoInterlaceFuncs[2]; 91 static const colorFunc pseudoInterlaceFuncs[3];
91}; 92};
92 93
93const RGBA::colorFunc RGBA::pseudoInterlaceFuncs[2] = { 94const RGBA::colorFunc RGBA::pseudoInterlaceFuncs[3] = {
95 RGBA::noop,
94 RGBA::brighten_4, 96 RGBA::brighten_4,
95 RGBA::darken 97 RGBA::darken
96}; 98};
@@ -233,12 +235,11 @@ void prepareMirrorTable(prepareFunc prepare, size_t size, FbTk::RGBA* rgba,
233 size_t half_size = (size >> 1) + (size & 1); 235 size_t half_size = (size >> 1) + (size & 1);
234 236
235 prepare(half_size, &rgba[0], from, to, scale); 237 prepare(half_size, &rgba[0], from, to, scale);
236 mirrorRGB(size, 1, rgba); // TODO!! 238 mirrorRGB(size, 1, rgba);
237} 239}
238 240
239 241inline void pseudoInterlace(FbTk::RGBA& rgba, const bool& do_interlace, const size_t& y) {
240inline void pseudoInterlace(FbTk::RGBA& rgba, const size_t& y) { 242 FbTk::RGBA::pseudoInterlaceFuncs[do_interlace + (do_interlace * (y & 1))](rgba);
241 FbTk::RGBA::pseudoInterlaceFuncs[y & 1](rgba);
242} 243}
243 244
244 245
@@ -367,11 +368,8 @@ void renderHorizontalGradient(bool interlaced,
367 368
368 for (i = 0, y = 0; y < height; ++y) { 369 for (i = 0, y = 0; y < height; ++y) {
369 for (x = 0; x < width; ++x, ++i) { 370 for (x = 0; x < width; ++x, ++i) {
370
371 rgba[i] = gradient[x]; 371 rgba[i] = gradient[x];
372 372 pseudoInterlace(rgba[i], interlaced, y);
373 if (interlaced)
374 pseudoInterlace(rgba[i], y);
375 } 373 }
376 } 374 }
377} 375}
@@ -392,9 +390,7 @@ void renderVerticalGradient(bool interlaced,
392 for (i = 0, y = 0; y < height; ++y) { 390 for (i = 0, y = 0; y < height; ++y) {
393 for (x = 0; x < width; ++x, ++i) { 391 for (x = 0; x < width; ++x, ++i) {
394 rgba[i] = gradient[y]; 392 rgba[i] = gradient[y];
395 393 pseudoInterlace(rgba[i], interlaced, y);
396 if (interlaced)
397 pseudoInterlace(rgba[i], y);
398 } 394 }
399 } 395 }
400} 396}
@@ -427,8 +423,7 @@ void renderPyramidGradient(bool interlaced,
427 rgba[i].g = x_gradient[x].g + y_gradient[y].g; 423 rgba[i].g = x_gradient[x].g + y_gradient[y].g;
428 rgba[i].b = x_gradient[x].b + y_gradient[y].b; 424 rgba[i].b = x_gradient[x].b + y_gradient[y].b;
429 425
430 if (interlaced) 426 pseudoInterlace(rgba[i], interlaced, y);
431 pseudoInterlace(rgba[i], y);
432 } 427 }
433 } 428 }
434} 429}
@@ -482,8 +477,7 @@ void renderRectangleGradient(bool interlaced,
482 rgba[i] = y_gradient[y]; 477 rgba[i] = y_gradient[y];
483 } 478 }
484 479
485 if (interlaced) 480 pseudoInterlace(rgba[i], interlaced, y);
486 pseudoInterlace(rgba[i], y);
487 } 481 }
488 } 482 }
489} 483}
@@ -525,8 +519,7 @@ void renderPipeCrossGradient(bool interlaced,
525 rgba[i] = y_gradient[y]; 519 rgba[i] = y_gradient[y];
526 } 520 }
527 521
528 if (interlaced) 522 pseudoInterlace(rgba[i], interlaced, y);
529 pseudoInterlace(rgba[i], y);
530 } 523 }
531 } 524 }
532} 525}
@@ -562,8 +555,7 @@ void renderDiagonalGradient(bool interlaced,
562 rgba[i].g = x_gradient[x].g + y_gradient[y].g; 555 rgba[i].g = x_gradient[x].g + y_gradient[y].g;
563 rgba[i].b = x_gradient[x].b + y_gradient[y].b; 556 rgba[i].b = x_gradient[x].b + y_gradient[y].b;
564 557
565 if (interlaced) 558 pseudoInterlace(rgba[i], interlaced, y);
566 pseudoInterlace(rgba[i], y);
567 } 559 }
568 } 560 }
569} 561}
@@ -608,8 +600,7 @@ void renderEllipticGradient(bool interlaced,
608 rgba[i].g = (unsigned char)(g - (d * dg)); 600 rgba[i].g = (unsigned char)(g - (d * dg));
609 rgba[i].b = (unsigned char)(b - (d * db)); 601 rgba[i].b = (unsigned char)(b - (d * db));
610 602
611 if (interlaced) 603 pseudoInterlace(rgba[i], interlaced, y);
612 pseudoInterlace(rgba[i], y);
613 } 604 }
614 } 605 }
615} 606}
@@ -643,8 +634,7 @@ void renderCrossDiagonalGradient(bool interlaced,
643 rgba[i].g = x_gradient[x].g + y_gradient[y].g; 634 rgba[i].g = x_gradient[x].g + y_gradient[y].g;
644 rgba[i].b = x_gradient[x].b + y_gradient[y].b; 635 rgba[i].b = x_gradient[x].b + y_gradient[y].b;
645 636
646 if (interlaced) 637 pseudoInterlace(rgba[i], interlaced, y);
647 pseudoInterlace(rgba[i], y);
648 } 638 }
649 } 639 }
650} 640}