371 lines
11 KiB
C
371 lines
11 KiB
C
#include <glib.h>
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#include "render.h"
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#include "gradient.h"
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#include "../kernel/openbox.h"
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#include "color.h"
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void gradient_render(Surface *sf, int w, int h)
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{
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pixel32 *data = sf->data.planar.pixel_data;
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pixel32 current;
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unsigned int r,g,b;
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int off, x;
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switch (sf->data.planar.grad) {
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case Background_Solid: /* already handled */
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return;
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case Background_Vertical:
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gradient_vertical(sf, w, h);
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break;
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case Background_Horizontal:
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gradient_horizontal(sf, w, h);
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break;
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case Background_Diagonal:
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gradient_diagonal(sf, w, h);
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break;
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case Background_CrossDiagonal:
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gradient_crossdiagonal(sf, w, h);
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break;
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case Background_Pyramid:
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gradient_pyramid(sf, w, h);
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break;
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default:
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g_message("unhandled gradient");
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return;
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}
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if (sf->data.planar.relief == Flat && sf->data.planar.border) {
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r = sf->data.planar.border_color->r;
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g = sf->data.planar.border_color->g;
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b = sf->data.planar.border_color->b;
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current = (r << default_red_shift)
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+ (g << default_green_shift)
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+ (b << default_blue_shift);
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for (off = 0, x = 0; x < w; ++x, off++) {
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*(data + off) = current;
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*(data + off + ((h-1) * w)) = current;
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}
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for (off = 0, x = 0; x < h; ++x, off++) {
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*(data + (off * w)) = current;
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*(data + (off * w) + w - 1) = current;
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}
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}
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if (sf->data.planar.relief != Flat) {
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if (sf->data.planar.bevel == Bevel1) {
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for (off = 1, x = 1; x < w - 1; ++x, off++)
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highlight(data + off,
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data + off + (h-1) * w,
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sf->data.planar.relief==Raised);
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for (off = 0, x = 0; x < h; ++x, off++)
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highlight(data + off * w,
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data + off * w + w - 1,
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sf->data.planar.relief==Raised);
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}
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if (sf->data.planar.bevel == Bevel2) {
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for (off = 2, x = 2; x < w - 2; ++x, off++)
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highlight(data + off + w,
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data + off + (h-2) * w,
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sf->data.planar.relief==Raised);
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for (off = 1, x = 1; x < h-1; ++x, off++)
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highlight(data + off * w + 1,
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data + off * w + w - 2,
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sf->data.planar.relief==Raised);
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}
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}
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}
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void gradient_vertical(Surface *sf, int w, int h)
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{
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pixel32 *data = sf->data.planar.pixel_data;
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pixel32 current;
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float dr, dg, db;
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unsigned int r,g,b;
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int x, y;
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dr = (float)(sf->data.planar.secondary->r - sf->data.planar.primary->r);
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dr/= (float)h;
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dg = (float)(sf->data.planar.secondary->g - sf->data.planar.primary->g);
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dg/= (float)h;
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db = (float)(sf->data.planar.secondary->b - sf->data.planar.primary->b);
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db/= (float)h;
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for (y = 0; y < h; ++y) {
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r = sf->data.planar.primary->r + (int)(dr * y);
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g = sf->data.planar.primary->g + (int)(dg * y);
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b = sf->data.planar.primary->b + (int)(db * y);
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current = (r << default_red_shift)
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+ (g << default_green_shift)
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+ (b << default_blue_shift);
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for (x = 0; x < w; ++x, ++data)
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*data = current;
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}
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}
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void gradient_horizontal(Surface *sf, int w, int h)
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{
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pixel32 *data = sf->data.planar.pixel_data;
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pixel32 current;
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float dr, dg, db;
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unsigned int r,g,b;
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int x, y;
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dr = (float)(sf->data.planar.secondary->r - sf->data.planar.primary->r);
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dr/= (float)w;
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dg = (float)(sf->data.planar.secondary->g - sf->data.planar.primary->g);
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dg/= (float)w;
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db = (float)(sf->data.planar.secondary->b - sf->data.planar.primary->b);
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db/= (float)w;
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for (x = 0; x < w; ++x, ++data) {
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r = sf->data.planar.primary->r + (int)(dr * x);
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g = sf->data.planar.primary->g + (int)(dg * x);
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b = sf->data.planar.primary->b + (int)(db * x);
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current = (r << default_red_shift)
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+ (g << default_green_shift)
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+ (b << default_blue_shift);
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for (y = 0; y < h; ++y)
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*(data + y*w) = current;
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}
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}
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void gradient_diagonal(Surface *sf, int w, int h)
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{
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pixel32 *data = sf->data.planar.pixel_data;
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pixel32 current;
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float drx, dgx, dbx, dry, dgy, dby;
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unsigned int r,g,b;
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int x, y;
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for (y = 0; y < h; ++y) {
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drx = (float)(sf->data.planar.secondary->r - sf->data.planar.primary->r);
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dry = drx/(float)h;
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drx/= (float)w;
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dgx = (float)(sf->data.planar.secondary->g - sf->data.planar.primary->g);
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dgy = dgx/(float)h;
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dgx/= (float)w;
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dbx = (float)(sf->data.planar.secondary->b - sf->data.planar.primary->b);
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dby = dbx/(float)h;
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dbx/= (float)w;
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for (x = 0; x < w; ++x, ++data) {
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r = sf->data.planar.primary->r + ((int)(drx * x) + (int)(dry * y))/2;
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g = sf->data.planar.primary->g + ((int)(dgx * x) + (int)(dgy * y))/2;
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b = sf->data.planar.primary->b + ((int)(dbx * x) + (int)(dby * y))/2;
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current = (r << default_red_shift)
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+ (g << default_green_shift)
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+ (b << default_blue_shift);
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*data = current;
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}
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}
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}
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void gradient_crossdiagonal(Surface *sf, int w, int h)
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{
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pixel32 *data = sf->data.planar.pixel_data;
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pixel32 current;
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float drx, dgx, dbx, dry, dgy, dby;
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unsigned int r,g,b;
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int x, y;
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for (y = 0; y < h; ++y) {
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drx = (float)(sf->data.planar.secondary->r - sf->data.planar.primary->r);
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dry = drx/(float)h;
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drx/= (float)w;
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dgx = (float)(sf->data.planar.secondary->g - sf->data.planar.primary->g);
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dgy = dgx/(float)h;
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dgx/= (float)w;
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dbx = (float)(sf->data.planar.secondary->b - sf->data.planar.primary->b);
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dby = dbx/(float)h;
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dbx/= (float)w;
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for (x = w; x > 0; --x, ++data) {
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r = sf->data.planar.primary->r + ((int)(drx * (x-1)) + (int)(dry * y))/2;
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g = sf->data.planar.primary->g + ((int)(dgx * (x-1)) + (int)(dgy * y))/2;
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b = sf->data.planar.primary->b + ((int)(dbx * (x-1)) + (int)(dby * y))/2;
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current = (r << default_red_shift)
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+ (g << default_green_shift)
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+ (b << default_blue_shift);
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*data = current;
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}
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}
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}
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void highlight(pixel32 *x, pixel32 *y, gboolean raised)
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{
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int r, g, b;
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pixel32 *up, *down;
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if (raised) {
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up = x;
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down = y;
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} else {
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up = y;
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down = x;
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}
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r = (*up >> default_red_shift) & 0xFF;
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r += r >> 1;
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g = (*up >> default_green_shift) & 0xFF;
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g += g >> 1;
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b = (*up >> default_blue_shift) & 0xFF;
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b += b >> 1;
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if (r > 255) r = 255;
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if (g > 255) g = 255;
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if (b > 255) b = 255;
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*up = (r << default_red_shift) + (g << default_green_shift)
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+ (b << default_blue_shift);
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r = (*down >> default_red_shift) & 0xFF;
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r = (r >> 1) + (r >> 2);
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g = (*down >> default_green_shift) & 0xFF;
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g = (g >> 1) + (g >> 2);
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b = (*down >> default_blue_shift) & 0xFF;
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b = (b >> 1) + (b >> 2);
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*down = (r << default_red_shift) + (g << default_green_shift)
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+ (b << default_blue_shift);
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}
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void gradient_solid(Appearance *l, int x, int y, int w, int h)
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{
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pixel32 pix;
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int i, a, b;
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PlanarSurface *sp = &l->surface.data.planar;
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int left = x, top = y, right = w - 1, bottom = h - 1;
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if (sp->primary->gc == None)
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color_allocate_gc(sp->primary);
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pix = (sp->primary->r << default_red_shift)
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+ (sp->primary->g << default_green_shift)
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+ (sp->primary->b << default_blue_shift);
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for (a = 0; a < l->area.width; a++)
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for (b = 0; b < l->area.height; b++)
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sp->pixel_data[a + b*l->area.width] = pix;
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XFillRectangle(ob_display, l->pixmap, sp->primary->gc
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, x, y, w, h);
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if (l->surface.data.planar.interlaced) {
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if (sp->secondary->gc == None)
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color_allocate_gc(sp->secondary);
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for (i = y; i < h; i += 2)
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XDrawLine(ob_display, l->pixmap, sp->secondary->gc,
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x, i, w, i);
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}
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/*
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switch (texture.relief()) {
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case RenderTexture::Raised:
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switch (texture.bevel()) {
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case RenderTexture::Bevel1:
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XDrawLine(ob_display, l->pixmap, texture.bevelDarkColor().gc(),
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left, bottom, right, bottom);
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XDrawLine(ob_display, l->pixmap, texture.bevelDarkColor().gc(),
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right, bottom, right, top);
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XDrawLine(ob_display, l->pixmap, texture.bevelLightColor().gc(),
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left, top, right, top);
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XDrawLine(ob_display, l->pixmap, texture.bevelLightColor().gc(),
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left, bottom, left, top);
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break;
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case RenderTexture::Bevel2:
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XDrawLine(ob_display, l->pixmap, texture.bevelDarkColor().gc(),
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left + 1, bottom - 2, right - 2, bottom - 2);
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XDrawLine(ob_display, l->pixmap, texture.bevelDarkColor().gc(),
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right - 2, bottom - 2, right - 2, top + 1);
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XDrawLine(ob_display, l->pixmap, texture.bevelLightColor().gc(),
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left + 1, top + 1, right - 2, top + 1);
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XDrawLine(**display, sf.pixmap(), texture.bevelLightColor().gc(),
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left + 1, bottom - 2, left + 1, top + 1);
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break;
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default:
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assert(false); // unhandled RenderTexture::BevelType
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}
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break;
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case RenderTexture::Sunken:
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switch (texture.bevel()) {
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case RenderTexture::Bevel1:
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XDrawLine(**display, sf.pixmap(), texture.bevelLightColor().gc(),
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left, bottom, right, bottom);
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XDrawLine(**display, sf.pixmap(), texture.bevelLightColor().gc(),
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right, bottom, right, top);
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XDrawLine(**display, sf.pixmap(), texture.bevelDarkColor().gc(),
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left, top, right, top);
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XDrawLine(**display, sf.pixmap(), texture.bevelDarkColor().gc(),
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left, bottom, left, top);
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break;
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case RenderTexture::Bevel2:
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XDrawLine(**display, sf.pixmap(), texture.bevelLightColor().gc(),
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left + 1, bottom - 2, right - 2, bottom - 2);
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XDrawLine(**display, sf.pixmap(), texture.bevelLightColor().gc(),
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right - 2, bottom - 2, right - 2, top + 1);
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XDrawLine(**display, sf.pixmap(), texture.bevelDarkColor().gc(),
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left + 1, top + 1, right - 2, top + 1);
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XDrawLine(**display, sf.pixmap(), texture.bevelDarkColor().gc(),
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left + 1, bottom - 2, left + 1, top + 1);
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break;
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default:
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assert(false); // unhandled RenderTexture::BevelType
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}
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break;
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case RenderTexture::Flat:
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if (texture.border())
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XDrawRectangle(**display, sf.pixmap(), texture.borderColor().gc(),
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left, top, right, bottom);
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break;
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default:
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assert(false); // unhandled RenderTexture::ReliefType
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}
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*/
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}
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void gradient_pyramid(Surface *sf, int inw, int inh)
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{
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pixel32 *data = sf->data.planar.pixel_data;
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pixel32 *end = data + inw*inh;
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pixel32 current;
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float drx, dgx, dbx, dry, dgy, dby;
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unsigned int r,g,b;
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int x, y, h=(inh+1)/2, w=(inw+1)/2;
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memset(data, 0, inw*inh*sizeof(pixel32));
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for (y = 0; y < h; ++y) {
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drx = (float)(sf->data.planar.secondary->r - sf->data.planar.primary->r);
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dry = drx/(float)h;
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drx/= (float)w;
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dgx = (float)(sf->data.planar.secondary->g - sf->data.planar.primary->g);
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dgy = dgx/(float)h;
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dgx/= (float)w;
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dbx = (float)(sf->data.planar.secondary->b - sf->data.planar.primary->b);
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dby = dbx/(float)h;
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dbx/= (float)w;
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for (x = 0; x < w; ++x, data) {
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r = sf->data.planar.primary->r + ((int)(drx * x) + (int)(dry * y))/2;
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g = sf->data.planar.primary->g + ((int)(dgx * x) + (int)(dgy * y))/2;
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b = sf->data.planar.primary->b + ((int)(dbx * x) + (int)(dby * y))/2;
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current = (r << default_red_shift)
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+ (g << default_green_shift)
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+ (b << default_blue_shift);
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*(data+x) = current;
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*(data+inw-x) = current;
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*(end-x) = current;
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*(end-(inw-x)) = current;
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}
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data+=inw;
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end-=inw;
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}
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}
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