X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=otk%2Ftruerendercontrol.cc;h=c11d7b0bdc8e7ebfcf3bef2f269c3b155ac69752;hb=5face4c6f35172761367f63ac0b6eaf62d84e532;hp=95a567bcc98b91d8a9885e78e2b25ecb3fb4d136;hpb=67bb7f8ce08d3ef625843ab7ea2c4434b1620ecf;p=chaz%2Fopenbox

diff --git a/otk/truerendercontrol.cc b/otk/truerendercontrol.cc
index 95a567bc..c11d7b0b 100644
--- a/otk/truerendercontrol.cc
+++ b/otk/truerendercontrol.cc
@@ -7,6 +7,8 @@
 #include "truerendercontrol.hh"
 #include "display.hh"
 #include "screeninfo.hh"
+#include "surface.hh"
+#include "rendertexture.hh"
 
 extern "C" {
 #ifdef    HAVE_STDLIB_H
@@ -19,35 +21,30 @@ extern "C" {
 
 namespace otk {
 
-TrueRenderControl::TrueRenderControl(const ScreenInfo *screen)
-  : RenderControl(screen)
+TrueRenderControl::TrueRenderControl(int screen)
+  : RenderControl(screen),
+    _red_offset(0),
+    _green_offset(0),
+    _blue_offset(0)
 {
   printf("Initializing TrueColor RenderControl\n");
 
+  Visual *visual = display->screenInfo(_screen)->visual();
   unsigned long red_mask, green_mask, blue_mask;
 
   // find the offsets for each color in the visual's masks
-  red_mask = screen->visual()->red_mask;
-  green_mask = screen->visual()->green_mask;
-  blue_mask = screen->visual()->blue_mask;
+  red_mask = visual->red_mask;
+  green_mask = visual->green_mask;
+  blue_mask = visual->blue_mask;
 
-  while (! (red_mask & 1)) { _red_offset++; red_mask >>= 1; }
+  while (! (red_mask & 1))   { _red_offset++;   red_mask   >>= 1; }
   while (! (green_mask & 1)) { _green_offset++; green_mask >>= 1; }
-  while (! (blue_mask & 1)) { _blue_offset++; blue_mask >>= 1; }
+  while (! (blue_mask & 1))  { _blue_offset++;  blue_mask  >>= 1; }
 
-  // use the mask to determine the number of bits for each shade of color
-  // so, best case, red_mask == 0xff (255), with each bit as a different
-  // shade!
-  _red_bits = 255 / red_mask;
-  _green_bits = 255 / green_mask;
-  _blue_bits = 255 / blue_mask;
-
-  // compute color tables, based on the number of bits for each shade
-  for (int i = 0; i < 256; i++) {
-    _red_color_table[i] = i / _red_bits;
-    _green_color_table[i] = i / _green_bits;
-    _blue_color_table[i] = i / _blue_bits;
-  }
+  _red_shift = _green_shift = _blue_shift = 8;
+  while (red_mask)   { red_mask   >>= 1; _red_shift--;   }
+  while (green_mask) { green_mask >>= 1; _green_shift--; }
+  while (blue_mask)  { blue_mask  >>= 1; _blue_shift--;  }
 }
 
 TrueRenderControl::~TrueRenderControl()
@@ -57,4 +54,294 @@ TrueRenderControl::~TrueRenderControl()
 
 }
 
+
+static inline void renderPixel(XImage *im, unsigned char *dp,
+			       unsigned long pixel)
+{
+  unsigned int bpp = im->bits_per_pixel + (im->byte_order == MSBFirst ? 1 : 0);
+
+  switch (bpp) {
+  case  8: //  8bpp
+    *dp++ = pixel;
+    break;
+  case 16: // 16bpp LSB
+    *dp++ = pixel;
+    *dp++ = pixel >> 8;
+    break;
+  case 17: // 16bpp MSB
+    *dp++ = pixel >> 8;
+    *dp++ = pixel;
+    break;
+  case 24: // 24bpp LSB
+    *dp++ = pixel;
+    *dp++ = pixel >> 8;
+    *dp++ = pixel >> 16;
+    break;
+  case 25: // 24bpp MSB
+    *dp++ = pixel >> 16;
+    *dp++ = pixel >> 8;
+    *dp++ = pixel;
+    break;
+  case 32: // 32bpp LSB
+    *dp++ = pixel;
+    *dp++ = pixel >> 8;
+    *dp++ = pixel >> 16;
+    *dp++ = pixel >> 24;
+    break;
+  case 33: // 32bpp MSB
+    *dp++ = pixel >> 24;
+    *dp++ = pixel >> 16;
+    *dp++ = pixel >> 8;
+    *dp++ = pixel;
+    break;
+  default:
+    assert(false); // wtf?
+  }
+}
+
+void TrueRenderControl::drawGradientBackground(
+     Surface &sf, const RenderTexture &texture) const
+{
+  unsigned int r,g,b;
+  int w = sf.width(), h = sf.height(), off, x;
+
+  const ScreenInfo *info = display->screenInfo(_screen);
+  XImage *im = XCreateImage(**display, info->visual(), info->depth(),
+                            ZPixmap, 0, NULL, w, h, 32, 0);
+  
+  pixel32 *data = new pixel32[sf.height()*sf.width()];
+  pixel32 current;
+
+  switch (texture.gradient()) {
+  case RenderTexture::Vertical:
+    verticalGradient(sf, texture, data);
+    break;
+  case RenderTexture::Diagonal:
+    diagonalGradient(sf, texture, data);
+    break;
+  case RenderTexture::CrossDiagonal:
+    crossDiagonalGradient(sf, texture, data);
+    break;
+  default:
+    printf("unhandled gradient\n");
+  }
+
+  if (texture.relief() == RenderTexture::Flat && texture.border()) {
+    r = texture.borderColor().red();
+    g = texture.borderColor().green();
+    b = texture.borderColor().blue();
+    current = (r << 16)
+            + (g << 8)
+            + b;
+    for (off = 0, x = 0; x < w; ++x, off++) {
+      *(data + off) = current;
+      *(data + off + ((h-1) * w)) = current;
+    }
+    for (off = 0, x = 0; x < h; ++x, off++) {
+      *(data + (off * w)) = current;
+      *(data + (off * w) + w - 1) = current;
+    }
+  }
+
+  if (texture.relief() != RenderTexture::Flat) {
+    if (texture.bevel() == RenderTexture::Bevel1) {
+      for (off = 1, x = 1; x < w - 1; ++x, off++)
+        highlight(data + off,
+                  data + off + (h-1) * w,
+                  texture.relief()==RenderTexture::Raised);
+      for (off = 0, x = 0; x < h; ++x, off++)
+        highlight(data + off * w,
+                  data + off * w + w - 1,
+                  texture.relief()==RenderTexture::Raised);
+    }
+
+    if (texture.bevel() == RenderTexture::Bevel2) {
+      for (off = 2, x = 2; x < w - 2; ++x, off++)
+        highlight(data + off + w,
+                  data + off + (h-2) * w,
+                  texture.relief()==RenderTexture::Raised);
+      for (off = 1, x = 1; x < h-1; ++x, off++)
+        highlight(data + off * w + 1,
+                  data + off * w + w - 2,
+                  texture.relief()==RenderTexture::Raised);
+    }
+  }
+
+  reduceDepth(im, data);
+
+  im->data = (char*) data;
+
+  sf.setPixmap(im);
+
+  delete [] im->data;
+  im->data = NULL;
+  XDestroyImage(im);
+}
+
+void TrueRenderControl::verticalGradient(Surface &sf,
+                                         const RenderTexture &texture,
+                                         pixel32 *data) const
+{
+  pixel32 current;
+  float dr, dg, db;
+  unsigned int r,g,b;
+
+  dr = (float)(texture.secondary_color().red() - texture.color().red());
+  dr/= (float)sf.height();
+
+  dg = (float)(texture.secondary_color().green() - texture.color().green());
+  dg/= (float)sf.height();
+
+  db = (float)(texture.secondary_color().blue() - texture.color().blue());
+  db/= (float)sf.height();
+
+  for (int y = 0; y < sf.height(); ++y) {
+    r = texture.color().red() + (int)(dr * y);
+    g = texture.color().green() + (int)(dg * y);
+    b = texture.color().blue() + (int)(db * y);
+    current = (r << 16)
+            + (g << 8)
+            + b;
+    for (int x = 0; x < sf.width(); ++x, ++data)
+      *data = current;
+  }
+}
+
+void TrueRenderControl::diagonalGradient(Surface &sf,
+                                         const RenderTexture &texture,
+                                         pixel32 *data) const
+{
+  pixel32 current;
+  float drx, dgx, dbx, dry, dgy, dby;
+  unsigned int r,g,b;
+
+
+  for (int y = 0; y < sf.height(); ++y) {
+    drx = (float)(texture.secondary_color().red() - texture.color().red());
+    dry = drx/(float)sf.height();
+    drx/= (float)sf.width();
+
+    dgx = (float)(texture.secondary_color().green() - texture.color().green());
+    dgy = dgx/(float)sf.height();
+    dgx/= (float)sf.width();
+
+    dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
+    dby = dbx/(float)sf.height();
+    dbx/= (float)sf.width();
+    for (int x = 0; x < sf.width(); ++x, ++data) {
+      r = texture.color().red() + ((int)(drx * x) + (int)(dry * y))/2;
+      g = texture.color().green() + ((int)(dgx * x) + (int)(dgy * y))/2;
+      b = texture.color().blue() + ((int)(dbx * x) + (int)(dby * y))/2;
+      current = (r << 16)
+              + (g << 8)
+              + b;
+      *data = current;
+    }
+  }
+}
+
+void TrueRenderControl::crossDiagonalGradient(Surface &sf,
+                                         const RenderTexture &texture,
+                                         pixel32 *data) const
+{
+  pixel32 current;
+  float drx, dgx, dbx, dry, dgy, dby;
+  unsigned int r,g,b;
+
+  for (int y = 0; y < sf.height(); ++y) {
+    drx = (float)(texture.secondary_color().red() - texture.color().red());
+    dry = drx/(float)sf.height();
+    drx/= (float)sf.width();
+
+    dgx = (float)(texture.secondary_color().green() - texture.color().green());
+    dgy = dgx/(float)sf.height();
+    dgx/= (float)sf.width();
+
+    dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
+    dby = dbx/(float)sf.height();
+    dbx/= (float)sf.width();
+    for (int x = sf.width(); x > 0; --x, ++data) {
+      r = texture.color().red() + ((int)(drx * (x-1)) + (int)(dry * y))/2;
+      g = texture.color().green() + ((int)(dgx * (x-1)) + (int)(dgy * y))/2;
+      b = texture.color().blue() + ((int)(dbx * (x-1)) + (int)(dby * y))/2;
+      current = (r << 16)
+              + (g << 8)
+              + b;
+      *data = current;
+    }
+  }
+}
+void TrueRenderControl::reduceDepth(XImage *im, pixel32 *data) const
+{
+// since pixel32 is the largest possible pixel size, we can share the array
+  int r, g, b;
+  int x,y;
+  pixel16 *p = (pixel16 *)data;
+  switch (im->bits_per_pixel) {
+  case 32:
+    return;
+  case 16:
+    for (y = 0; y < im->height; y++) {
+      for (x = 0; x < im->width; x++) {
+        r = (data[x] >> 16) & 0xFF;
+        r = r >> _red_shift;
+        g = (data[x] >> 8) & 0xFF;
+        g = g >> _green_shift;
+        b = data[x] & 0xFF;
+        b = b >> _blue_shift;
+        p[x] = (r << _red_offset) + (g << _green_offset) + (b << _blue_offset);
+      }
+      data += im->width;
+      p += im->bytes_per_line/2;
+    }
+    break;
+  default:
+    printf("your bit depth is currently unhandled\n");
+  }
+}
+
+void TrueRenderControl::highlight(pixel32 *x, pixel32 *y, bool raised) const
+{
+  int r, g, b;
+
+  pixel32 *up, *down;
+  if (raised) {
+    up = x;
+    down = y;
+  } else {
+    up = y;
+    down = x;
+  }
+  r = (*up >> 16) & 0xFF;
+  r += r >> 1;
+  g = (*up >> 8) & 0xFF;
+  g += g >> 1;
+  b = *up & 0xFF;
+  b += b >> 1;
+  if (r > 255) r = 255;
+  if (g > 255) g = 255;
+  if (b > 255) b = 255;
+  *up = (r << 16) + (g << 8) + b;
+  
+  r = (*down >> 16) & 0xFF;
+  r = (r >> 1) + (r >> 2);
+  g = (*down >> 8) & 0xFF;
+  g = (g >> 1) + (g >> 2);
+  b = *down & 0xFF;
+  b = (b >> 1) + (b >> 2);
+  *down = (r << 16) + (g << 8) + b;
+}
+void TrueRenderControl::drawBackground(Surface& sf,
+				       const RenderTexture &texture) const
+{
+  assert(_screen == sf._screen);
+  assert(_screen == texture.color().screen());
+
+  if (texture.gradient() == RenderTexture::Solid) {
+    drawSolidBackground(sf, texture);
+  } else {
+    drawGradientBackground(sf, texture);
+  }
+}
+
 }