GDISP - Revision history

Tectu: /* API reference */

2016-02-04T15:50:57Z

‎API reference

2016-01-31T20:30:03Z

‎Colors

2015-11-07T16:11:08Z

‎Clipping

2015-11-07T16:08:33Z

‎Clipping

2015-11-07T16:07:17Z

‎Clipping

2015-11-07T16:05:20Z

‎Validation

2015-11-07T16:05:10Z

‎Validation

2015-11-07T16:03:23Z

‎Clipping

2015-11-07T16:02:58Z

2015-11-06T20:23:05Z

‎Color Blending

@@ Line 13: / Line 13: @@
 == API reference ==
-The API reference of the GDISP module can be found [http://api.ugfx.org/master/group___g_d_i_s_p.html here].
+The API reference of the GDISP module can be found [http://api.ugfx.org/group___g_d_i_s_p.html here].
 == Drivers ==

@@ Line 74: / Line 74: @@
 The type for the internal color format is: <code>color_t</code>.
 Macro's have been provided so that the user application never needs to worry about the details of the internal color format.
-<syntaxhighlight lang=c>
+<syntaxhighlight lang="c">
 HTML2COLOR(h);       // Converts a 32 bit HTML color to a native color
 RGB2COLOR(r,g,b);    // Converts a RGB triplet to a native color (each triplet is 0 to 255)

← Older revision		Revision as of 16:11, 7 November 2015
Line 148:		Line 148:

	Clipping is also used internally by the [[GWIN]] module when enabled.		Clipping is also used internally by the [[GWIN]] module when enabled.
		+
		+	=== Hardware clipping ===
		+	Many display controllers provide built-in hardware clipping. The [[GDISP]] module will automatically use hardware clipping when available.

	== Drawing ==		== Drawing ==

@@ Line 146: / Line 146: @@
 gdispUnsetClip();
 </syntaxhighlight>
 == Drawing ==

@@ Line 140: / Line 140: @@
 == Clipping ==
 Clipping is the more generic implementation of [[GDISP#Validation|Validation]]. Clipping allows the application to specify a window region. Clipping will then make sure that no drawing occurs outside of this window, similar to how [[GDISP#Validation|Validation]] makes sure that no drawing happens outside the display area.
 == Drawing ==

@@ Line 133: / Line 133: @@
 == Validation ==
 Validation makes sure that no drawing takes place outside of the display area. This is especially for memory-mapped displays very critical. When writing outside of the framebuffer, any data can be modified which leads to undefined behavior.
 The validation feature costs about 8 bytes per display and adds only very little processor overhead. In return, firmware safety is increased a lot. Therefore, it is strongly recommended to use the validation feature.
 Validation is turned on by default.

@@ Line 125: / Line 125: @@
 === Color Blending ===
-Two colors can be blend together using ''gdispBlendColor()''.
+Two colors can be blend together using ''gdispBlendColor()'':
 <syntaxhighlight lang=c>
-color_t gdispBlendColor(color_t fg, color_t bg, uint8_t alpha);
+color_t gdispBlendColor(color_t color1, color_t color2, uint8_t ratio);
 </syntaxhighlight>
 == Clipping ==