ReactOS 0.4.15-dev-7674-gc0b4db1
bootvid.c File Reference
#include "precomp.h"
#include <debug.h>
Include dependency graph for bootvid.c:

Go to the source code of this file.

Macros

#define NDEBUG
 

Functions

VOID NTAPI DisplayCharacter (_In_ CHAR Character, _In_ ULONG Left, _In_ ULONG Top, _In_ ULONG TextColor, _In_ ULONG BackColor)
 
VOID NTAPI DoScroll (_In_ ULONG Scroll)
 
VOID NTAPI PreserveRow (_In_ ULONG CurrentTop, _In_ ULONG TopDelta, _In_ BOOLEAN Restore)
 
VOID NTAPI VidpInitializeDisplay (VOID)
 
VOID NTAPI InitPaletteWithTable (_In_ PULONG Table, _In_ ULONG Count)
 
BOOLEAN NTAPI VidInitialize (_In_ BOOLEAN SetMode)
 
VOID NTAPI VidResetDisplay (_In_ BOOLEAN HalReset)
 
VOID NTAPI VidCleanUp (VOID)
 
VOID NTAPI VidScreenToBufferBlt (_Out_writes_bytes_(Delta *Height) PUCHAR Buffer, _In_ ULONG Left, _In_ ULONG Top, _In_ ULONG Width, _In_ ULONG Height, _In_ ULONG Delta)
 
VOID NTAPI VidSolidColorFill (_In_ ULONG Left, _In_ ULONG Top, _In_ ULONG Right, _In_ ULONG Bottom, _In_ UCHAR Color)
 

Variables

PUSHORT VgaArmBase
 
PHYSICAL_ADDRESS VgaPhysical
 

Macro Definition Documentation

◆ NDEBUG

#define NDEBUG

Definition at line 3 of file bootvid.c.

Function Documentation

◆ DisplayCharacter()

VOID NTAPI DisplayCharacter ( _In_ CHAR  Character,
_In_ ULONG  Left,
_In_ ULONG  Top,
_In_ ULONG  TextColor,
_In_ ULONG  BackColor 
)

Definition at line 13 of file bootvid.c.

19{
20 PUCHAR FontChar;
21 ULONG i, j, XOffset;
22
23 /* Get the font line for this character */
24 FontChar = &VidpFontData[Character * BOOTCHAR_HEIGHT - Top];
25
26 /* Loop each pixel height */
27 for (i = BOOTCHAR_HEIGHT; i > 0; --i)
28 {
29 /* Loop each pixel width */
30 XOffset = Left;
31 for (j = (1 << 7); j > 0; j >>= 1)
32 {
33 /* Check if we should draw this pixel */
34 if (FontChar[Top] & (UCHAR)j)
35 {
36 /* We do, use the given Text Color */
37 SetPixel(XOffset, Top, (UCHAR)TextColor);
38 }
39 else if (BackColor < BV_COLOR_NONE)
40 {
41 /*
42 * This is a background pixel. We're drawing it
43 * unless it's transparent.
44 */
45 SetPixel(XOffset, Top, (UCHAR)BackColor);
46 }
47
48 /* Increase X Offset */
49 XOffset++;
50 }
51
52 /* Move to the next Y ordinate */
53 Top++;
54 }
55}
FORCEINLINE VOID SetPixel(_In_ ULONG Left, _In_ ULONG Top, _In_ UCHAR Color)
Definition: arm.h:50
static LPHIST_ENTRY Top
Definition: history.c:53
#define BOOTCHAR_HEIGHT
Definition: precomp.h:27
UCHAR VidpFontData[256 *BOOTCHAR_HEIGHT]
Definition: fontdata.c:9
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint GLint GLint j
Definition: glfuncs.h:250
#define BV_COLOR_NONE
Definition: display.h:31
unsigned char * PUCHAR
Definition: typedefs.h:53
uint32_t ULONG
Definition: typedefs.h:59
unsigned char UCHAR
Definition: xmlstorage.h:181

◆ DoScroll()

VOID NTAPI DoScroll ( _In_ ULONG  Scroll)

Definition at line 59 of file bootvid.c.

61{
63 PUSHORT SourceOffset, DestOffset;
64 PUSHORT i, j;
65
66 /* Set memory positions of the scroll */
68 DestOffset = &SourceOffset[Scroll * (SCREEN_WIDTH / 8)];
69
70 /* Start loop */
71 for (Top = VidpScrollRegion[1]; Top <= VidpScrollRegion[3]; ++Top)
72 {
73 /* Set number of bytes to loop and start offset */
74 Offset = VidpScrollRegion[0] >> 3;
76
77 /* Check if this is part of the scroll region */
78 if (Offset <= (VidpScrollRegion[2] >> 3))
79 {
80 /* Update position */
81 i = (PUSHORT)(DestOffset - SourceOffset);
82
83 /* Loop the X axis */
84 do
85 {
86 /* Write value in the new position so that we can do the scroll */
88
89 /* Move to the next memory location to write to */
90 j++;
91
92 /* Move to the next byte in the region */
93 Offset++;
94
95 /* Make sure we don't go past the scroll region */
96 } while (Offset <= (VidpScrollRegion[2] >> 3));
97 }
98
99 /* Move to the next line */
100 SourceOffset += (SCREEN_WIDTH / 8);
101 DestOffset += (SCREEN_WIDTH / 8);
102 }
103}
PUSHORT VgaArmBase
Definition: bootvid.c:6
#define WRITE_REGISTER_USHORT(r, v)
Definition: arm.h:24
#define READ_REGISTER_USHORT(r)
Definition: arm.h:23
ULONG VidpScrollRegion[4]
Definition: common.c:10
_In_ ULONG _In_ ULONG Offset
Definition: ntddpcm.h:101
#define SCREEN_WIDTH
Definition: pc98video.c:27
uint16_t * PUSHORT
Definition: typedefs.h:56
uint32_t ULONG_PTR
Definition: typedefs.h:65
_Must_inspect_result_ _In_ WDFMEMORY _In_ size_t SourceOffset
Definition: wdfmemory.h:320

◆ InitPaletteWithTable()

VOID NTAPI InitPaletteWithTable ( _In_ PULONG  Table,
_In_ ULONG  Count 
)

Definition at line 170 of file bootvid.c.

173{
175}
#define UNIMPLEMENTED
Definition: debug.h:115

◆ PreserveRow()

VOID NTAPI PreserveRow ( _In_ ULONG  CurrentTop,
_In_ ULONG  TopDelta,
_In_ BOOLEAN  Restore 
)

Definition at line 107 of file bootvid.c.

111{
112 PUSHORT Position1, Position2;
113 ULONG Count;
114
115 /* Calculate the position in memory for the row */
116 if (Restore)
117 {
118 /* Restore the row by copying back the contents saved off-screen */
119 Position1 = &VgaArmBase[CurrentTop * (SCREEN_WIDTH / 8)];
120 Position2 = &VgaArmBase[SCREEN_HEIGHT * (SCREEN_WIDTH / 8)];
121 }
122 else
123 {
124 /* Preserve the row by saving its contents off-screen */
125 Position1 = &VgaArmBase[SCREEN_HEIGHT * (SCREEN_WIDTH / 8)];
126 Position2 = &VgaArmBase[CurrentTop * (SCREEN_WIDTH / 8)];
127 }
128
129 /* Set the count and loop every pixel */
130 Count = TopDelta * (SCREEN_WIDTH / 8);
131 while (Count--)
132 {
133 /* Write the data back on the other position */
134 WRITE_REGISTER_USHORT(Position1, READ_REGISTER_USHORT(Position2));
135
136 /* Increase both positions */
137 Position1++;
138 Position2++;
139 }
140}
int Count
Definition: noreturn.cpp:7
#define SCREEN_HEIGHT
Definition: pc98video.c:28

◆ VidCleanUp()

VOID NTAPI VidCleanUp ( VOID  )

Definition at line 246 of file bootvid.c.

247{
249 while (TRUE);
250}
#define TRUE
Definition: types.h:120

Referenced by InbvEnableBootDriver(), and InbvNotifyDisplayOwnershipLost().

◆ VidInitialize()

BOOLEAN NTAPI VidInitialize ( _In_ BOOLEAN  SetMode)

Definition at line 184 of file bootvid.c.

186{
187 DPRINT1("bv-arm v0.1\n");
188
189 //
190 // Allocate framebuffer
191 // 600kb works out to 640x480@16bpp
192 //
195 if (!VgaArmBase) return FALSE;
196
197 //
198 // Get physical address
199 //
201 if (!VgaPhysical.QuadPart) return FALSE;
202 DPRINT1("[BV-ARM] Frame Buffer @ 0x%p 0p%p\n", VgaArmBase, VgaPhysical.LowPart);
203
204 //
205 // Setup the display
206 //
208
209 //
210 // We are done!
211 //
212 return TRUE;
213}
VOID NTAPI VidpInitializeDisplay(VOID)
Definition: bootvid.c:144
PHYSICAL_ADDRESS VgaPhysical
Definition: bootvid.c:7
#define DPRINT1
Definition: precomp.h:8
PVOID NTAPI MmAllocateContiguousMemory(IN SIZE_T NumberOfBytes, IN PHYSICAL_ADDRESS HighestAcceptableAddress)
Definition: contmem.c:626
#define FALSE
Definition: types.h:117
PHYSICAL_ADDRESS NTAPI MmGetPhysicalAddress(IN PVOID Address)
Definition: stubs.c:685
LONGLONG QuadPart
Definition: typedefs.h:114
ULONG LowPart
Definition: typedefs.h:106

Referenced by InbvDriverInitialize().

◆ VidpInitializeDisplay()

VOID NTAPI VidpInitializeDisplay ( VOID  )

Definition at line 144 of file bootvid.c.

145{
146 //
147 // Set framebuffer address
148 //
151
152 //
153 // Initialize timings to 640x480
154 //
157
158 //
159 // Enable the LCD Display
160 //
166}
#define WRITE_REGISTER_ULONG(r, v)
Definition: arm.h:21
#define PL110_LCDCONTROL
Definition: hwclcd.c:23
#define LCDCONTROL_LCDBPP(x)
Definition: hwclcd.c:15
#define PL110_LCDTIMING1
Definition: hwclcd.c:19
#define PL110_LCDUPBASE
Definition: hwclcd.c:21
#define PL110_LCDTIMING0
Definition: hwclcd.c:18
#define LCDTIMING0_PPL(x)
Definition: hwclcd.c:11
#define LCDCONTROL_LCDPWR
Definition: hwclcd.c:13
#define LCDCONTROL_LCDEN
Definition: hwclcd.c:14
#define LCDCONTROL_LCDTFT
Definition: hwclcd.c:16
#define LCDTIMING1_LPP(x)
Definition: hwclcd.c:12
#define PL110_LCDLPBASE
Definition: hwclcd.c:22

Referenced by VidInitialize(), and VidResetDisplay().

◆ VidResetDisplay()

VOID NTAPI VidResetDisplay ( _In_ BOOLEAN  HalReset)

Definition at line 220 of file bootvid.c.

222{
223 //
224 // Clear the current position
225 //
226 VidpCurrentX = 0;
227 VidpCurrentY = 0;
228
229 //
230 // Re-initialize the VGA Display
231 //
233
234 //
235 // Re-initialize the palette and fill the screen black
236 //
239}
VOID NTAPI VidSolidColorFill(_In_ ULONG Left, _In_ ULONG Top, _In_ ULONG Right, _In_ ULONG Bottom, _In_ UCHAR Color)
Definition: bootvid.c:274
ULONG VidpCurrentY
Definition: common.c:8
ULONG VidpCurrentX
Definition: common.c:7
#define InitializePalette()
Definition: precomp.h:68
#define BV_COLOR_BLACK
Definition: display.h:15

Referenced by InbvResetDisplay(), and VidInitialize().

◆ VidScreenToBufferBlt()

VOID NTAPI VidScreenToBufferBlt ( _Out_writes_bytes_(Delta *Height) PUCHAR  Buffer,
_In_ ULONG  Left,
_In_ ULONG  Top,
_In_ ULONG  Width,
_In_ ULONG  Height,
_In_ ULONG  Delta 
)

Definition at line 257 of file bootvid.c.

264{
266 while (TRUE);
267}

Referenced by InbvScreenToBufferBlt().

◆ VidSolidColorFill()

VOID NTAPI VidSolidColorFill ( _In_ ULONG  Left,
_In_ ULONG  Top,
_In_ ULONG  Right,
_In_ ULONG  Bottom,
_In_ UCHAR  Color 
)

Definition at line 274 of file bootvid.c.

280{
281 int y, x;
282
283 //
284 // Loop along the Y-axis
285 //
286 for (y = Top; y <= Bottom; y++)
287 {
288 //
289 // Loop along the X-axis
290 //
291 for (x = Left; x <= Right; x++)
292 {
293 //
294 // Draw the pixel
295 //
296 SetPixel(x, y, Color);
297 }
298 }
299}
static LPHIST_ENTRY Bottom
Definition: history.c:54
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
GLint GLint GLint GLint GLint GLint y
Definition: gl.h:1548

Referenced by BootAnimTickProgressBar(), FinalizeBootLogo(), InbvRotationThread(), InbvSolidColorFill(), RleBitBlt(), VidCleanUp(), and VidResetDisplay().

Variable Documentation

◆ VgaArmBase

PUSHORT VgaArmBase

Definition at line 6 of file bootvid.c.

Referenced by DoScroll(), PreserveRow(), SetPixel(), and VidInitialize().

◆ VgaPhysical

PHYSICAL_ADDRESS VgaPhysical

Definition at line 7 of file bootvid.c.

Referenced by VidInitialize(), and VidpInitializeDisplay().