Added/splitted colormaps to a seperate file.

1 files changed, 125 insertions, 6 deletions

diff --git a/Smoke/colormap.c b/Smoke/colormap.c
index 4fafe53..6cacb1b 100644
--- a/Smoke/colormap.c
+++ b/Smoke/colormap.c
@@ -3,12 +3,131 @@
 #include <windows.h>
 #endif
 
+#include "palette.h"
 #include "colormap.h"
+#include "funcs.h"
 
+static int colormap_num_colors = COLOR_MAXCOLORS;
 
-#if 0
-   if (autoscale)
-   {
-	   vy = remap(vy);
-   }
-#endif
+static int colormap = COLOR_BLACKWHITE;
+
+static int colormap_scaling = FALSE;
+
+static int colormap_clamping = FALSE;
+
+static float scale_min = 0.0f;
+
+static float scale_max = 1.0f;
+
+static float clamp_min = 0.0f;
+
+static float clamp_max = 0.9999f;
+
+
+
+void colormap_set_num_colors(int num_colors)
+{
+  colormap_num_colors = num_colors;
+}
+
+void colormap_set_map(int color_map)
+{
+  colormap = color_map;
+}
+
+void colormap_set_scaling(int scaling)
+{
+  colormap_scaling = scaling;
+}
+
+int colormap_get_scaling(void)
+{
+  return colormap_scaling;
+}
+
+void colormap_set_clamping(int clamping)
+{
+  colormap_clamping = clamping;
+}
+
+int colormap_get_clamping(void)
+{
+  return colormap_clamping;
+}
+
+void colormap_set_scale_min(float min_scale)
+{
+  if (colormap_scaling) {
+    scale_min = min_scale;
+  }
+}
+
+float colormap_get_scale_min(void)
+{
+  return scale_min;
+}
+
+void colormap_set_scale_max(float max_scale)
+{
+  if (colormap_scaling) {
+    scale_max = max_scale;
+  }
+}
+
+float colormap_get_scale_max(void)
+{
+  return scale_max;
+}
+
+void colormap_set_clamp_min(float min_clamp)
+{
+  if (colormap_clamping) {
+    clamp_min = min_clamp;
+  }
+}
+
+float colormap_get_clamp_min(void)
+{
+  return clamp_min;
+}
+
+void colormap_set_clamp_max(float max_clamp)
+{
+  if (colormap_clamping) {
+    clamp_max = max_clamp;
+  }
+}
+
+float colormap_get_clamp_max(void)
+{
+  return clamp_max;
+}
+
+
+static float remap(float value)
+{
+	value -= scale_min;
+	value /= (scale_max - scale_min);
+
+	return value;
+}
+
+static float clamp(float value)
+{
+  if (value < clamp_min) value = clamp_min;
+  if (value > clamp_max) value = clamp_max;
+
+  return value;
+}
+
+struct color4f colormap_get_color(float value)
+{
+  struct color4f return_value;
+
+  value = colormap_clamping ? clamp(value) : value;
+  value = colormap_scaling ? remap(value) : value;
+
+  return_value = set_palette(colormap, value, colormap_num_colors);
+
+  return return_value;
+}