PoliEcho-holding-org/kern
1
0
Fork 1
mirror of https://github.com/Tom-on64/kern.git synced 2026-11-03 18:22:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

Made clear() faster!

Browse Source
This commit is contained in:
Tom-on
2024-05-02 17:49:29 +02:00
parent 906ce6d160
commit b19400fe33
1 changed files with 10 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/screen.h
+10 -5
View File
@@ -91,7 +91,6 @@ uint32_t convertColor(uint32_t color) {
} }
// TODO: Reimplement larger text // TODO: Reimplement larger text
// TODO: Support different bpps (and still keep the colors the same)
void putcAt(unsigned char c, uint32_t x, uint32_t y) { void putcAt(unsigned char c, uint32_t x, uint32_t y) {
// Font info // Font info
uint8_t charWidth = *(font); uint8_t charWidth = *(font);
@@ -128,7 +127,7 @@ void printAt(const char* str, uint32_t x, uint32_t y) {
} }
} }
void scroll() { // TODO: Make this faster (still kinda slow) void scroll() { // TODO: Make this faster (still kinda slow, but memcpy32() helped alot)
uint8_t charHeight = *(font + 1); uint8_t charHeight = *(font + 1);
if ((cursor.y+1) * charHeight < gfxMode->yRes) { return; } // Check if we should scroll if ((cursor.y+1) * charHeight < gfxMode->yRes) { return; } // Check if we should scroll
@@ -178,7 +177,7 @@ void putc(char c) {
cursor.x++; cursor.x++;
if (cursor.x >= gfxMode->xRes / charWidth) { if (cursor.x >= gfxMode->xRes / charWidth) {
cursor.y++; // TODO: Scrolling cursor.y++;
cursor.x = 0; cursor.x = 0;
} }
} }
@@ -192,7 +191,6 @@ void print(const char* str) {
} }
} }
// TODO: Optimize this, it is slow (i made it slightly better)
void clear() { void clear() {
uint8_t* vidmem = (uint8_t*)gfxMode->physicalBasePtr; uint8_t* vidmem = (uint8_t*)gfxMode->physicalBasePtr;
uint8_t bytesPerPx = (gfxMode->bpp+1) / 8; uint8_t bytesPerPx = (gfxMode->bpp+1) / 8;
@@ -202,12 +200,19 @@ void clear() {
uint32_t color = convertColor(bgColor); uint32_t color = convertColor(bgColor);
for (uint32_t i = 0; i < gfxMode->xRes * gfxMode->yRes; i++) { for (uint32_t i = 0; i < gfxMode->xRes; i++) { // Clear one line of pixels
for (uint8_t j = 0; j < bytesPerPx; j++) { for (uint8_t j = 0; j < bytesPerPx; j++) {
vidmem[j] = (uint8_t)(color >> (j * 8)); vidmem[j] = (uint8_t)(color >> (j * 8));
} }
vidmem += bytesPerPx; vidmem += bytesPerPx;
} }
vidmem -= gfxMode->bytesPerScanline;
for (uint32_t i = 0; i < gfxMode->yRes; i++) { // Copy that line to clear the entire screen (using memcpy32 is fast!)
memcpy32(vidmem, vidmem + gfxMode->bytesPerScanline, gfxMode->bytesPerScanline);
vidmem += gfxMode->bytesPerScanline;
}
} }
#endif #endif