/* for graphic displays only */
static void drv_MDM166A_blit(const int row, const int col, const int height, const int width)
{
int n, x, y, yb;
unsigned char c;
if (NeedRefresh == 0) {
minX = width;
maxX = 0;
}
for (y = row; y < row + height && y < SCREEN_H; ++y)
for (x = col; x < col + width && x < SCREEN_W; ++x) {
yb = (y / 8);
n = x + (yb * SCREEN_W);
c = *(mdm166a_framebuffer + n);
if (drv_generic_graphic_black(y, x) ^ nDrawInverted)
c |= 0x80 >> (y % 8);
else
c &= ~(0x80 >> (y % 8));
if (c != *(mdm166a_framebuffer + n)) {
*(mdm166a_framebuffer + n) = c;
minX = (minX < x) ? minX : x;
maxX = (maxX > (x + 1)) ? maxX : (x + 1);
NeedRefresh = 1;
}
}
static void drv_MOGX_blit(const int row, const int col, const int height, const int width)
{
int r, c;
for (r = row; r < row + height; r++) {
for (c = col; c < col + width; c++)
MOGX_framebuffer[r * SCREEN_W + c] = drv_generic_graphic_black(r, c);
}
drv_MOGX_update_lcd();
}
static void drv_PICGraphic_blit(const int row, const int col, const int height, const int width)
{
/* update a rectangular portion of the display */
int r, c, index, status;
unsigned char cmd[5];
debug("blit from (%d,%d) to (%d,%d) out of (%d,%d)", row, col, row + height, col + width, DROWS, DCOLS);
if (!fbPG)
return;
for (c = min(col, DCOLS - 1); c < min(col + width, DCOLS); c++) {
for (r = min(row, DROWS - 1); r < min(row + height, DROWS); r++) {
index = DCOLS * (r / 8) + c;
if (index < 0 || index >= DCOLS * DROWS / 8) {
error("index too large: %d, r: %d, c: %d", index, r, c);
break;
}
if (drv_generic_graphic_black(r, c)) {
fbPG[index] |= (1 << (r % 8));
} else {
fbPG[index] &= ~(1 << (r % 8));
}
}
}
// send rectangular portion with height divisible by 8
#ifdef partialFrame
if (delayDone) {
delayDone = 0;
int row8, height8;
row8 = 8 * (row / 8);
height8 = 8 * (height / 8) + ! !(height % 8);
info("sending blit");
cmd[0] = 'b';
cmd[1] = row8;
cmd[2] = col;
cmd[3] = height8;
cmd[4] = width;
drv_PICGraphic_send(cmd, 5);
for (r = min(row8, DROWS - 1); r < min(row8 + height8, DROWS); r += 8) {
drv_PICGraphic_send(fbPG + DCOLS * (r / 8) + col, width);
}
}
#else
// send full frame
if (delayDone) {
delayDone = 0;
info("sending frame");
cmd[0] = 'f';
drv_PICGraphic_send((char *) cmd, 1);
drv_PICGraphic_send(fbPG, DROWS * DCOLS / 8);
usleep(20000);
// wait for reception of confirmation code
status = drv_PICGraphic_recv((char *) cmd, 2, "ff");
if (!status) {
info("received ff from device");
} else {
info("did not receive ff from device");
}
}
#endif
}
/* copy framebuffer to display */
static void drv_EA232graphic_blit(const int row, const int col, const int height, const int width)
{
int r, c, l, p;
char *cmd;
/* calculate length of command */
l = 0;
switch (Model->protocol) {
case 1:
case 2:
l = ((height + 7) / 8) * width;
break;
case 3:
l = ((width + 7) / 8) * height;
break;
default:
error("%s: undefined protocol type", Name);
return;
}
/* add maximum length of command header */
cmd = (char *) malloc(l + 10);
if (cmd == NULL) {
error("%s: allocation of buffer failed: %s", Name, strerror(errno));
return;
}
p = 0;
/* write command header */
switch (Model->protocol) {
case 1:
case 3:
cmd[p++] = 'U';
cmd[p++] = col;
cmd[p++] = row;
cmd[p++] = width;
cmd[p++] = height;
break;
case 2:
cmd[p++] = ESC;
cmd[p++] = 'U';
cmd[p++] = 'L';
cmd[p++] = col;
cmd[p++] = row;
cmd[p++] = width;
cmd[p++] = height;
break;
default:
error("%s: undefined protocol type", Name);
free(cmd);
return;
}
/* clear all pixels */
memset(cmd + p, 0, l);
/* set pixels */
switch (Model->protocol) {
case 1:
case 2:
for (r = 0; r < height; r++) {
for (c = 0; c < width; c++) {
if (drv_generic_graphic_black(r + row, c + col)) {
cmd[(r / 8) * width + c + p] |= (LSB_BYTE << (r % 8));
}
}
}
break;
case 3:
for (c = 0; c < width; c++) {
for (r = 0; r < height; r++) {
if (drv_generic_graphic_black(r + row, c + col)) {
cmd[(c / 8) * height + r + p] |= (MSB_BYTE >> (c % 8));
}
}
}
break;
default:
error("%s: undefined protocol type", Name);
free(cmd);
return;
}