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Make painting of image cleaner, flickering gone, need for alpha removed which reduces CPU load a lot

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This commit is contained in:
Nicole Faerber 2021-01-31 15:32:10 +01:00
parent 0472272371
commit 28bdc82453
3 changed files with 141 additions and 133 deletions
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61
NOTES.txt
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@ -1,3 +1,5 @@
cairo_surface_t *cairo_get_target (cairo_t *cr);
int stride;
unsigned char *data;
cairo_surface_t *surface;
@ -26,62 +28,3 @@ unsigned char * cairo_image_surface_get_data (cairo_surface_t *surfac
get pointer to imag data for inspection _and_ manipulation
first disable Auto FFC (autoFFC:false)
Code: [Select]
//--------- write string: {"type":"setOption","data":{"option":"autoFFC","value":false}}
length = 16;
unsigned char my_string4[16]={0xcc,0x01,0x00,0x00,0x01,0x00,0x00,0x00,0x3f,0x00,0x00,0x00,0x57,0x64,0x17,0x8b};
printf("\nEP 0x02 to be sent Hexcode: %i Bytes[",length);
for (i = 0; i < length; i++) {
printf(" %02x", my_string4[i]);
}
printf(" ]\n");
r = libusb_bulk_transfer(devh, 2, my_string4, length, &transferred, 0);
if(r == 0 && transferred == length)
{
printf("\nWrite successful!");
}
else
printf("\nError in write! res = %d and transferred = %d\n", r, transferred);
strcpy( my_string,"{\"type\":\"setOption\",\"data\":{\"option\":\"autoFFC\",\"value\":false}}");
length = strlen(my_string)+1;
printf("\nEP 0x02 to be sent %i Bytes: %s", length, my_string);
// avoid error: invalid conversion from ‘char*’ to ‘unsigned char*’ [-fpermissive]
my_string1 = (unsigned char*)my_string;
r = libusb_bulk_transfer(devh, 2, my_string1, length, &transferred, 0);
if(r == 0 && transferred == length)
{
printf("\nWrite successful!");
printf("\nSent %d bytes with string: %s\n", transferred, my_string);
}
else
printf("\nError in write! res = %d and transferred = %d\n", r, transferred);
and trigger if required a manual FCC (doFFC:true)
Code: [Select]
unsigned char my_string2[16]={0xcc,0x01,0x00,0x00,0x01,0x00,0x00,0x00,0x3c,0x00,0x00,0x00,0xb9,0xcb,0xa2,0x99};
r = libusb_bulk_transfer(devh, 2, my_string2, length, &transferred, 0);
if(r == 0 && transferred == length)
printf("\nWrite successful!");
else
printf("\nError in write! res = %d and transferred = %d\n", r, transferred);
char my_string[128];
transferred = 0;
strcpy(my_string, "{\"type\":\"setOption\",\"data\":{\"option\":\"doFFC\",\"value\":true}}");
length = strlen(my_string)+1;
unsigned char *my_string1 = (unsigned char*)my_string;