From 78adc951137553179058ce136c09758b88ca10c2 Mon Sep 17 00:00:00 2001
From: avolkov <avolkov@8092fc87-c524-0410-9efc-e669fe64eaf9>
Date: Fri, 6 May 2005 14:53:25 +0000
Subject: [PATCH] New GetPixel function

git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@1720 8092fc87-c524-0410-9efc-e669fe64eaf9
---
 sc2/src/sc2code/libs/graphics/sdl/canvas.c | 16 ++++++++++++++++
 sc2/src/sc2code/libs/graphics/tfb_draw.h   |  1 +
 2 files changed, 17 insertions(+)

diff --git a/sc2/src/sc2code/libs/graphics/sdl/canvas.c b/sc2/src/sc2code/libs/graphics/sdl/canvas.c
index 3d6746154..e739e63e9 100644
--- a/sc2/src/sc2code/libs/graphics/sdl/canvas.c
+++ b/sc2/src/sc2code/libs/graphics/sdl/canvas.c
@@ -1040,6 +1040,22 @@ TFB_DrawCanvas_GetLine (TFB_Canvas canvas, int line)
 	return (uint8*)surf->pixels + surf->pitch * line;
 }
 
+void
+TFB_DrawCanvas_GetPixel (TFB_Canvas canvas, int x, int y, int *r, int *g, int *b)
+{
+	SDL_Surface* surf = (SDL_Surface *)canvas;
+	Uint8 ur, ug, ub;
+	Uint32 pixel;
+	GetPixelFn getpixel;
+
+	getpixel = getpixel_for(surf);
+	pixel = (*getpixel)(surf, x, y);
+	SDL_GetRGB (pixel, surf->format, &ur, &ug, &ub);
+	*r = ur;
+	*g = ug;
+	*b = ub;
+}
+
 void
 TFB_DrawCanvas_Rotate (TFB_Canvas src_canvas, TFB_Canvas dst_canvas, int angle, EXTENT size)
 {
diff --git a/sc2/src/sc2code/libs/graphics/tfb_draw.h b/sc2/src/sc2code/libs/graphics/tfb_draw.h
index 8a7519408..1d68f2792 100644
--- a/sc2/src/sc2code/libs/graphics/tfb_draw.h
+++ b/sc2/src/sc2code/libs/graphics/tfb_draw.h
@@ -126,5 +126,6 @@ void TFB_DrawCanvas_SetTransparentColor (TFB_Canvas canvas, int r, int g, int b,
 void TFB_DrawCanvas_Initialize (void);
 void TFB_DrawCanvas_GetScreenFormat (TFB_PixelFormat *fmt);
 void* TFB_DrawCanvas_GetLine (TFB_Canvas canvas, int line);
+void TFB_DrawCanvas_GetPixel (TFB_Canvas canvas, int x, int y, int *r, int *g, int *b);
 
 #endif