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Messages - bobgardner

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1
Discussion - EVE / Re: Draw a couple lines on a button?
« on: May 21, 2019, 08:52:39 PM »
OK, if I use 1 as the format instead of L1, the converter works and creates the directory and bin and raw files. How bout someone look at that tif file and figger out a way to get it on the eve tft? Thanx!

2
Discussion - EVE / img_cvt doesnt like L1?
« on: May 20, 2019, 07:40:11 PM »
Trying to cvt my 208x86 png file to bin using img_cvt. Get error msg about L1.

3
Discussion - EVE / Re: Draw a couple lines on a button?
« on: May 17, 2019, 06:45:48 PM »
My Big Picture is: I have a bunch o 208x86 1bpp screens that I was shifting out to a crt. Now I have this eve2-29a tft thats 320x102, but it fits exactly in the hole where the crt went. In the previous question, I really did want to draw a couple of 1 pixel lines with a 1 pix space between them, just to test the resolution. Seems to work fine if I set line width(0) which is 1 pixel, and use vertex2f. All good so far. Now I want to load a 208x86 screen bitmap into eve ram somewhere, and scale it up in x by 320/208, and scale it up in y by 102/80. Since scale uses a 16bit frac part, I guess its 320*65536/208. So I'd love to see cmds to load the bitmap from the arduino flash array 2236 bytes, and how to scale it to the screen. Thanks so much folks.

4
Discussion - EVE / Draw a couple lines on a button?
« on: May 16, 2019, 06:38:26 PM »
Hello EVE programmers. I have a matrix orbital 29a tft and the arduino shield. I can draw a big button 208x86 in the middle of the screen which is 320x102. Now I'd like to add a couple of 1 pixel wide horz lines at the top of the button like from 58,10 to 250,10 and 2 lines below that. Here's what Ive got
//------------------------------------------
void MakeScreen_Kln(void)
{
  Send_CMD(CMD_DLSTART);
  Send_CMD(CLEAR_COLOR_RGB(0,0,0));   
  Send_CMD(CLEAR(1,1,1));
 
  Send_CMD(COLOR_RGB(60,60,60));       //color gray                     
  Cmd_FGcolor(0xffffff);               //white 

  Send_CMD(CMD_SETROTATE);    //works
  Send_CMD(1);                //inverted landscape

  //---------x   y  w    h   fnt opt   
  Cmd_Button(56, 8, 208, 86, 28, 0xff, "208x86"); //gets here! 

  //  Send_CMD(LINE_WIDTH(1));             //these 7 lines dont work
  Cmd_FGcolor(0x000000);     //black 
  Send_CMD(BEGIN(LINES));
  Send_CMD(VERTEX2F(58,10)); //thin horz line
  Send_CMD(VERTEX2F(250,10));
  Send_CMD(VERTEX2F(58,12)); //thin horz line
  Send_CMD(VERTEX2F(250,12));

  Send_CMD(DISPLAY());
  Send_CMD(CMD_SWAP); 
  UpdateFIFO();                                            // Trigger the CoProcessor to start processing the FIFO
}

I guess you see I am using the matrix orbital arduino example, please forgive me. Any idea how to get the lines to draw at the top of the button? Thanks.

5
Discussion - EVE / Whats inside a BT81x?
« on: May 16, 2019, 04:33:00 PM »
Is it a computer? 8 bit? 16 bit? 32 bit? Clock? An FPGA? Just wondering how it does all that stuff so fast.

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