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-rw-r--r--Source/Kernel/Core/kmain.wtf.cpp11
-rw-r--r--Source/Kernel/DeviceManager/Disp.ns.cpp2
-rw-r--r--Source/Kernel/Devices/Display/Display.proto.h1
-rw-r--r--Source/Kernel/Devices/Display/VESADisplay.class.cpp91
-rw-r--r--Source/Kernel/Devices/Display/VESADisplay.class.h1
-rw-r--r--Source/Kernel/Devices/Display/VGATextOutput.class.cpp2
6 files changed, 77 insertions, 31 deletions
diff --git a/Source/Kernel/Core/kmain.wtf.cpp b/Source/Kernel/Core/kmain.wtf.cpp
index 28c65d1..cf1713f 100644
--- a/Source/Kernel/Core/kmain.wtf.cpp
+++ b/Source/Kernel/Core/kmain.wtf.cpp
@@ -92,9 +92,8 @@ void selectVideoMode(SimpleVT& v) {
} else {
v << "No graphics";
}
- //v.setCursorCol(40);
- //v << m.device->getName() << "\n";
- v << "\n";
+ v.setCursorCol(50);
+ v << m.device->getName() << "\n";
}
while (1) {
@@ -176,12 +175,6 @@ void kmain(multiboot_info_t* mbd, u32int magic) {
selectVideoMode(*kvt); //////////////////////// SETUP VIDEO MODE
kvt->unmap();
- for (int x = 0; x < 256; x++) {
- for (int y = 0; y < 256; y++) {
- Disp::mode.device->putPix(x, y, (x << 8) | y);
- }
- }
-
//Create a VT for handling the Melon bootup logo
SimpleVT *melonLogoVT = new SimpleVT(melonLogoLines, melonLogoCols, TXTLOGO_FGCOLOR, TXTLOGO_BGCOLOR);
melonLogoVT->map(1);
diff --git a/Source/Kernel/DeviceManager/Disp.ns.cpp b/Source/Kernel/DeviceManager/Disp.ns.cpp
index 2f1ebcd..146740d 100644
--- a/Source/Kernel/DeviceManager/Disp.ns.cpp
+++ b/Source/Kernel/DeviceManager/Disp.ns.cpp
@@ -41,6 +41,8 @@ void getModes() {
}
bool setMode(mode_t& newmode) {
+ mode.device->unsetMode();
+
if (newmode.device->setMode(newmode)) {
mode = newmode;
return true;
diff --git a/Source/Kernel/Devices/Display/Display.proto.h b/Source/Kernel/Devices/Display/Display.proto.h
index 26c3696..27d7ccc 100644
--- a/Source/Kernel/Devices/Display/Display.proto.h
+++ b/Source/Kernel/Devices/Display/Display.proto.h
@@ -13,6 +13,7 @@ class Display : public Device {
virtual void getModes(Vector<Disp::mode_t> &to) = 0;
virtual bool setMode(Disp::mode_t& mode) = 0;
+ virtual void unsetMode() {} //To be overloaded if driver has to do some cleaning-up
virtual void clear() = 0;
//Text functions
diff --git a/Source/Kernel/Devices/Display/VESADisplay.class.cpp b/Source/Kernel/Devices/Display/VESADisplay.class.cpp
index ae64403..215f405 100644
--- a/Source/Kernel/Devices/Display/VESADisplay.class.cpp
+++ b/Source/Kernel/Devices/Display/VESADisplay.class.cpp
@@ -5,6 +5,42 @@
using namespace Disp;
+/****************************************
+ * COLOR HANDLING FUNCTIONS
+ * *********************************************/
+
+inline u16int rgbTo15(u32int color) {
+ return (
+ (((color >> 16 & 0xFF) / 8) << 10) |
+ (((color >> 8 & 0xFF) / 8) << 5) |
+ ((color & 0xFF) / 8));
+}
+
+inline u32int rgbFrom15(u16int color) {
+ return (
+ (((color >> 10 & 0x1F) * 8) << 16) |
+ (((color >> 5 & 0x1F) * 8) << 8) |
+ ((color & 0x1F) * 8));
+}
+
+inline u16int rgbTo16(u32int color) {
+ return (
+ (((color >> 16 & 0xFF) / 8) << 11) |
+ (((color >> 8 & 0xFF) / 4) << 5) |
+ ((color & 0xFF) / 8));
+}
+
+inline u32int rgbFrom16(u16int color) {
+ return (
+ (((color >> 11 & 0x1F) * 8) << 16) |
+ (((color >> 5 & 0x3F) * 4) << 8) |
+ ((color & 0x1F) * 8));
+}
+
+/****************************************
+ * DEVICE INFORMATION RELATED FUNCTIONS
+ * *********************************************/
+
String VESADisplay::getClass() {
return "display.vesa";
}
@@ -51,7 +87,7 @@ void VESADisplay::getModes(Vector<mode_t> &to) {
if ((mode.attributes & 0x90) != 0x90) continue;
if (mode.memory_model != 4 and mode.memory_model != 6) continue;
- //if (mode.bpp != 24) continue;
+ if (mode.bpp != 24 and mode.bpp != 16 and mode.bpp != 15) continue;
mode_t m; m.device = this;
m.textCols = mode.Xres / C_FONT_WIDTH; m.textRows = mode.Yres / C_FONT_HEIGHT;
m.identifier = modes[i];
@@ -60,6 +96,10 @@ void VESADisplay::getModes(Vector<mode_t> &to) {
}
}
+/****************************************
+ * MODE SELECTION FUNCTIONS
+ * *********************************************/
+
bool VESADisplay::setMode(mode_t &mode) {
if (mode.device != this) return false;
m_currMode = getModeInfo(mode.identifier);
@@ -67,6 +107,7 @@ bool VESADisplay::setMode(mode_t &mode) {
regs.ax = 0x00004F02;
regs.bx = mode.identifier | 0x4000;
V86::biosInt(0x10, regs);
+ if (regs.ax != 0x004F) return false;
m_fb = (u8int*)0xF0000000;
for (u32int i = 0; i < (u32int)(m_currMode.Yres * m_currMode.pitch); i += 0x1000) {
@@ -78,12 +119,23 @@ bool VESADisplay::setMode(mode_t &mode) {
return true;
}
+void VESADisplay::unsetMode() {
+ for (u32int i = 0; i < (u32int)(m_currMode.Yres * m_currMode.pitch); i += 0x1000) {
+ page_t* p = kernelPageDirectory->getPage((u32int)(m_fb + i), false);
+ if (p != 0) p->present = 0, p->frame = 0;
+ }
+}
+
void VESADisplay::clear() {
for (u32int* i = (u32int*)(memPos(0, 0)); i < (u32int*)(memPos(m_currMode.Xres, 0)); i++) {
*i = 0x77777777;
}
}
+/****************************************
+ * DRAWING FUNCTIONS
+ * *********************************************/
+
void VESADisplay::putPix(u16int x, u16int y, u32int c) {
if (x >= m_currMode.Xres or y >= m_currMode.Yres) return;
union {
@@ -94,10 +146,9 @@ void VESADisplay::putPix(u16int x, u16int y, u32int c) {
if (m_currMode.bpp == 24) {
*p.d = (*p.d & 0xFF000000) | c;
} else if (m_currMode.bpp == 15) {
- u32int r = (c & 0x00FF0000 >> 16) * 32 / 256,
- g = (c & 0x0000FF00 >> 8) * 32 / 256,
- b = (c & 0x000000FF) * 32 / 256;
- *p.w = (r << 10) | (g << 5) | b;
+ *p.w = rgbTo15(c);
+ } else if (m_currMode.bpp == 16) {
+ *p.w = rgbTo16(c);
}
}
@@ -112,30 +163,28 @@ u32int VESADisplay::getPix(u16int x, u16int y) {
if (m_currMode.bpp == 24) {
ret = *p.d & 0x00FFFFFF;
} else if (m_currMode.bpp == 15) {
- u32int r = ((*p.w >> 10) & 0x1F) * 256 / 32,
- g = ((*p.w >> 5) & 0x1F) * 256 / 32,
- b = (*p.w & 0x1F) * 256 / 32;
- return (r << 16) | (g << 8) | b;
+ ret = rgbFrom15(*p.w);
+ } else if (m_currMode.bpp == 16) {
+ ret = rgbFrom16(*p.w);
}
return ret;
}
-//Advanced functions
void VESADisplay::drawChar(u16int line, u16int col, WChar c, u8int color) {
u8int ch = c.toAscii();
if (ch == 0) return;
u16int sx = col * C_FONT_WIDTH, sy = line * C_FONT_HEIGHT;
- u32int fgcolor = consoleColor[color & 0xF], bgcolor = consoleColor[(color >> 4) & 0xF];
-
- if (m_pixWidth == 2) {
- u32int r = (fgcolor & 0x00FF0000 >> 16) * 32 / 256,
- g = (fgcolor & 0x0000FF00 >> 8) * 32 / 256,
- b = (fgcolor & 0x000000FF) * 32 / 256;
- fgcolor = (r << 10) | (g << 5) | b;
- r = (bgcolor & 0x00FF0000 >> 16) * 32 / 256,
- g = (bgcolor & 0x0000FF00 >> 8) * 32 / 256,
- b = (bgcolor & 0x000000FF) * 32 / 256;
- bgcolor = (r << 10) | (g << 5) | b;
+ u32int fgcolor = 1, bgcolor = 0;
+
+ if (m_currMode.bpp == 24) {
+ fgcolor = consoleColor[color & 0xF];
+ bgcolor = consoleColor[(color >> 4) & 0xF];
+ } else if (m_currMode.bpp == 15) {
+ fgcolor = rgbTo15(consoleColor[color & 0xF]);
+ bgcolor = rgbTo15(consoleColor[(color >> 4) & 0xF]);
+ } else if (m_currMode.bpp == 16) {
+ fgcolor = rgbTo16(consoleColor[color & 0xF]);
+ bgcolor = rgbTo16(consoleColor[(color >> 4) & 0xF]);
}
diff --git a/Source/Kernel/Devices/Display/VESADisplay.class.h b/Source/Kernel/Devices/Display/VESADisplay.class.h
index 04c8e90..bdfc3ad 100644
--- a/Source/Kernel/Devices/Display/VESADisplay.class.h
+++ b/Source/Kernel/Devices/Display/VESADisplay.class.h
@@ -61,6 +61,7 @@ class VESADisplay : public GraphicDisplay {
void getModes(Vector<Disp::mode_t> &to);
bool setMode(Disp::mode_t& mode);
+ void unsetMode();
void clear();
void putPix(u16int x, u16int y, u32int color);
diff --git a/Source/Kernel/Devices/Display/VGATextOutput.class.cpp b/Source/Kernel/Devices/Display/VGATextOutput.class.cpp
index 8c687ba..50a57b2 100644
--- a/Source/Kernel/Devices/Display/VGATextOutput.class.cpp
+++ b/Source/Kernel/Devices/Display/VGATextOutput.class.cpp
@@ -14,7 +14,7 @@ String VGATextOutput::getClass() {
}
String VGATextOutput::getName() {
- return "Standard mode0 VGA text display";
+ return "Standard VGA text display";
}
void VGATextOutput::getModes(Vector<mode_t> &to) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 02:45:02 +0000