Commit: ccdfa922c3ea27a9e6fe98f483f460648c7c0f95 - lines (git)

line rasterizer test

Commit MetaInfo

• Revision: ccdfa922c3ea27a9e6fe98f483f460648c7c0f95 (tree)
• Time: 2011-02-06 21:53:27
• Author: beru <berupon@gmai...>
• Commiter: beru

Log Message

revised

Change Summary

• modified: main_plus.h

Incremental Difference

--- a/main_plus.h
+++ b/main_plus.h
@@ -24,27 +24,49 @@ gl::LineDrawer8_Nelson<float> lineDrawer_Nelson;
 void renderLines(gl::IBufferLineDrawer<float, uint8_t>& ld, float x)
 {
 	ld.SetBuffer(&buff);
-	for (int i=0; i<20; ++i) {
-		ld.DrawLine(220, x, 10+i*20, x+100, 20+i*50);
+	float offset = 0;
+	for (int s=0; s<16; ++s) {
+		int slide = s * 120;
+		int ei = 25;
+		for (int i=0; i<ei; ++i) {
+			int y = 30 + 40 * i;
+			ld.DrawLine(
+				220,
+				x+slide, y,
+				x+100+slide, y+offset
+				);
+			
+			TCHAR str[32];
+			RECT rec;
+			rec.left = x + slide;
+			rec.right = rec.left + 100;
+			rec.top = y - 20;
+			rec.bottom = rec.top + 20;
+			_stprintf(str, _T("%.1f"), offset);
+			::DrawText(hMemDC, str, -1, &rec, DT_LEFT);
+			offset += 0.1;
+		}
 	}
 }
 
 void render(UINT vk)
 {
+	::SetBkMode(hMemDC, TRANSPARENT);
+	::SetTextColor(hMemDC, RGB(255,255,255));
 	gl::Buffer2D_Fill<uint8_t>(buff, 0);
 //	buff.SetPixel(100, 220, 0xff);
 	switch (vk) {
 	case 'B':
-		renderLines(lineDrawer_Bresenham, 30);
+		renderLines(lineDrawer_Bresenham, 10);
 		break;
 	case 'D':
-		renderLines(lineDrawer_DDA, 30);
+		renderLines(lineDrawer_DDA, 10);
 		break;
 	case 'W':
-		renderLines(lineDrawer_Wu, 30);
+		renderLines(lineDrawer_Wu, 10);
 		break;
 	case 'N':
-		renderLines(lineDrawer_Nelson, 30);
+		renderLines(lineDrawer_Nelson, 10);
 	}
 }