From d46e6627bf26341c090c1556182a66280f98e785 Mon Sep 17 00:00:00 2001 From: Derek Foreman Date: Sun, 18 May 2003 19:24:08 +0000 Subject: [PATCH] change badly named offsets add stubs for rectangle and pipecross --- render/gradient.c | 112 ++++++++++++++++++++++++++++++++-------------- 1 file changed, 79 insertions(+), 33 deletions(-) diff --git a/render/gradient.c b/render/gradient.c index 00230323..97c62dab 100644 --- a/render/gradient.c +++ b/render/gradient.c @@ -29,6 +29,12 @@ void gradient_render(Surface *sf, int w, int h) case Background_Pyramid: gradient_pyramid(sf, w, h); break; + case Background_PipeCross: + printf("PipeCross\n"); + break; + case Background_Rectangle: + gradient_rectangle(sf, w, h); + break; default: g_message("unhandled gradient"); return; @@ -38,9 +44,9 @@ void gradient_render(Surface *sf, int w, int h) r = sf->data.planar.border_color->r; g = sf->data.planar.border_color->g; b = sf->data.planar.border_color->b; - current = (r << default_red_shift) - + (g << default_green_shift) - + (b << default_blue_shift); + current = (r << default_red_offset) + + (g << default_green_offset) + + (b << default_blue_offset); for (off = 0, x = 0; x < w; ++x, off++) { *(data + off) = current; *(data + off + ((h-1) * w)) = current; @@ -99,9 +105,9 @@ void gradient_vertical(Surface *sf, int w, int h) r = sf->data.planar.primary->r + (int)(dr * y); g = sf->data.planar.primary->g + (int)(dg * y); b = sf->data.planar.primary->b + (int)(db * y); - current = (r << default_red_shift) - + (g << default_green_shift) - + (b << default_blue_shift); + current = (r << default_red_offset) + + (g << default_green_offset) + + (b << default_blue_offset); for (x = 0; x < w; ++x, ++data) *data = current; } @@ -128,9 +134,9 @@ void gradient_horizontal(Surface *sf, int w, int h) r = sf->data.planar.primary->r + (int)(dr * x); g = sf->data.planar.primary->g + (int)(dg * x); b = sf->data.planar.primary->b + (int)(db * x); - current = (r << default_red_shift) - + (g << default_green_shift) - + (b << default_blue_shift); + current = (r << default_red_offset) + + (g << default_green_offset) + + (b << default_blue_offset); for (y = 0; y < h; ++y) *(data + y*w) = current; } @@ -160,9 +166,9 @@ void gradient_diagonal(Surface *sf, int w, int h) r = sf->data.planar.primary->r + ((int)(drx * x) + (int)(dry * y))/2; g = sf->data.planar.primary->g + ((int)(dgx * x) + (int)(dgy * y))/2; b = sf->data.planar.primary->b + ((int)(dbx * x) + (int)(dby * y))/2; - current = (r << default_red_shift) - + (g << default_green_shift) - + (b << default_blue_shift); + current = (r << default_red_offset) + + (g << default_green_offset) + + (b << default_blue_offset); *data = current; } } @@ -192,9 +198,9 @@ void gradient_crossdiagonal(Surface *sf, int w, int h) r = sf->data.planar.primary->r + ((int)(drx * (x-1)) + (int)(dry * y))/2; g = sf->data.planar.primary->g + ((int)(dgx * (x-1)) + (int)(dgy * y))/2; b = sf->data.planar.primary->b + ((int)(dbx * (x-1)) + (int)(dby * y))/2; - current = (r << default_red_shift) - + (g << default_green_shift) - + (b << default_blue_shift); + current = (r << default_red_offset) + + (g << default_green_offset) + + (b << default_blue_offset); *data = current; } } @@ -212,26 +218,26 @@ void highlight(pixel32 *x, pixel32 *y, gboolean raised) up = y; down = x; } - r = (*up >> default_red_shift) & 0xFF; + r = (*up >> default_red_offset) & 0xFF; r += r >> 1; - g = (*up >> default_green_shift) & 0xFF; + g = (*up >> default_green_offset) & 0xFF; g += g >> 1; - b = (*up >> default_blue_shift) & 0xFF; + b = (*up >> default_blue_offset) & 0xFF; b += b >> 1; if (r > 255) r = 255; if (g > 255) g = 255; if (b > 255) b = 255; - *up = (r << default_red_shift) + (g << default_green_shift) - + (b << default_blue_shift); + *up = (r << default_red_offset) + (g << default_green_offset) + + (b << default_blue_offset); - r = (*down >> default_red_shift) & 0xFF; + r = (*down >> default_red_offset) & 0xFF; r = (r >> 1) + (r >> 2); - g = (*down >> default_green_shift) & 0xFF; + g = (*down >> default_green_offset) & 0xFF; g = (g >> 1) + (g >> 2); - b = (*down >> default_blue_shift) & 0xFF; + b = (*down >> default_blue_offset) & 0xFF; b = (b >> 1) + (b >> 2); - *down = (r << default_red_shift) + (g << default_green_shift) - + (b << default_blue_shift); + *down = (r << default_red_offset) + (g << default_green_offset) + + (b << default_blue_offset); } void gradient_solid(Appearance *l, int x, int y, int w, int h) @@ -243,9 +249,9 @@ void gradient_solid(Appearance *l, int x, int y, int w, int h) if (sp->primary->gc == None) color_allocate_gc(sp->primary); - pix = (sp->primary->r << default_red_shift) - + (sp->primary->g << default_green_shift) - + (sp->primary->b << default_blue_shift); + pix = (sp->primary->r << default_red_offset) + + (sp->primary->g << default_green_offset) + + (sp->primary->b << default_blue_offset); for (a = 0; a < l->area.width; a++) for (b = 0; b < l->area.height; b++) @@ -338,8 +344,7 @@ void gradient_pyramid(Surface *sf, int inw, int inh) pixel32 current; float drx, dgx, dbx, dry, dgy, dby; unsigned int r,g,b; - int x, y, h=(inh+1)/2, w=(inw+1)/2; -memset(data, 0, inw*inh*sizeof(pixel32)); + int x, y, h=(inh/2) + 1, w=(inw/2) + 1; for (y = 0; y < h; ++y) { drx = (float)(sf->data.planar.secondary->r - sf->data.planar.primary->r); dry = drx/(float)h; @@ -356,9 +361,9 @@ memset(data, 0, inw*inh*sizeof(pixel32)); r = sf->data.planar.primary->r + ((int)(drx * x) + (int)(dry * y))/2; g = sf->data.planar.primary->g + ((int)(dgx * x) + (int)(dgy * y))/2; b = sf->data.planar.primary->b + ((int)(dbx * x) + (int)(dby * y))/2; - current = (r << default_red_shift) - + (g << default_green_shift) - + (b << default_blue_shift); + current = (r << default_red_offset) + + (g << default_green_offset) + + (b << default_blue_offset); *(data+x) = current; *(data+inw-x) = current; *(end-x) = current; @@ -369,3 +374,44 @@ memset(data, 0, inw*inh*sizeof(pixel32)); } } +void gradient_rectangle(Surface *sf, int inw, int inh) +{ + pixel32 *data = sf->data.planar.pixel_data; + pixel32 *end = data + inw*inh; + pixel32 current; + float drx, dgx, dbx, dry, dgy, dby; + unsigned int r,g,b; + int x, y, h=(inh/2) + 1, w=(inw/2) + 1; + int val; + + for (y = 0; y < h; ++y) { + drx = (float)(sf->data.planar.secondary->r - sf->data.planar.primary->r); + dry = drx/(float)h; + drx/= (float)w; + + dgx = (float)(sf->data.planar.secondary->g - sf->data.planar.primary->g); + dgy = dgx/(float)h; + dgx/= (float)w; + + dbx = (float)(sf->data.planar.secondary->b - sf->data.planar.primary->b); + dby = dbx/(float)h; + dbx/= (float)w; + for (x = 0; x < w; ++x, data) { + if (x < y) val = (int)(drx * x); + else val = (int)(dry * y); + + r = sf->data.planar.primary->r + val; + g = sf->data.planar.primary->g + val; + b = sf->data.planar.primary->b + val; + current = (r << default_red_offset) + + (g << default_green_offset) + + (b << default_blue_offset); + *(data+x) = current; + *(data+inw-x) = current; + *(end-x) = current; + *(end-(inw-x)) = current; + } + data+=inw; + end-=inw; + } +} -- 2.39.2