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/* Copyright (c) 2003-2005 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Neither the name of the Advanced Micro Devices, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
* */
/*
* File Contents: Xfree cursor implementation routines for geode HWcursor
* init.setting cursor color,image etc. are done here.
*
* Project: Geode Xfree Frame buffer device driver.
* */
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86_ansic.h"
#include "xf86Pci.h"
#include "xf86PciInfo.h"
#include "amd.h"
/* Forward declarations of the functions */
Bool GXHWCursorInit(ScreenPtr pScrn);
static void GXSetCursorColors(ScrnInfoPtr pScrni, int bg, int fg);
static void GXSetCursorPosition(ScrnInfoPtr pScrni, int x, int y);
void GXLoadCursorImage(ScrnInfoPtr pScrni, unsigned char *src);
void GXHideCursor(ScrnInfoPtr pScrni);
void GXShowCursor(ScrnInfoPtr pScrni);
static Bool GXUseHWCursor(ScreenPtr pScrn, CursorPtr pCurs);
extern void GXSetVideoPosition(int x, int y, int width, int height,
short src_w, short src_h, short drw_w,
short drw_h, int id, int offset, ScrnInfoPtr pScrn);
/*----------------------------------------------------------------------------
* GXHWCursorInit.
*
* Description :This function sets the cursor information by probing the
* hardware.
*
* Parameters.
* pScrn :Screeen pointer structure.
*
* Returns :TRUE on success and FALSE on Failure
*
* Comments :Geode supports the hardware_cursor,no need to enable SW
* cursor.
*----------------------------------------------------------------------------
*/
Bool
GXHWCursorInit(ScreenPtr pScrn)
{
ScrnInfoPtr pScrni = xf86Screens[pScrn->myNum];
GeodeRec *pGeode = GEODEPTR(pScrni);
xf86CursorInfoPtr infoPtr;
infoPtr = xf86CreateCursorInfoRec();
if (!infoPtr)
return FALSE;
/* the geode structure is intiallized with the cursor infoRec */
pGeode->CursorInfo = infoPtr;
infoPtr->MaxWidth = 32;
infoPtr->MaxHeight = 32;
/* seeting up the cursor flags */
infoPtr->Flags = HARDWARE_CURSOR_BIT_ORDER_MSBFIRST |
HARDWARE_CURSOR_TRUECOLOR_AT_8BPP |
HARDWARE_CURSOR_SOURCE_MASK_NOT_INTERLEAVED;
/* cursor info ptr is intiallized with the values obtained from
* * durnago calls
*/
infoPtr->SetCursorColors = GXSetCursorColors;
infoPtr->SetCursorPosition = GXSetCursorPosition;
infoPtr->LoadCursorImage = GXLoadCursorImage;
infoPtr->HideCursor = GXHideCursor;
infoPtr->ShowCursor = GXShowCursor;
infoPtr->UseHWCursor = GXUseHWCursor;
return (xf86InitCursor(pScrn, infoPtr));
}
/*----------------------------------------------------------------------------
* GXSetCursorColors.
*
* Description :This function sets the cursor foreground and background
* colors
* Parameters:
* pScrn: Screeen pointer structure.
* bg: Specifies the color value of cursor background color.
* fg: Specifies the color value of cursor foreground color.
*
* Returns: none.
*
* Comments: The integer color value passed by this function is
* converted into * RGB value by the gfx_set_color routines.
*----------------------------------------------------------------------------
*/
static void
GXSetCursorColors(ScrnInfoPtr pScrni, int bg, int fg)
{
GFX(set_cursor_colors(bg, fg));
}
/*----------------------------------------------------------------------------
* GXSetCursorPosition.
*
* Description :This function sets the cursor co -ordinates and enable the
* cursor.
*
* Parameters:
* pScrn: Screeen pointer structure.
* x: Specifies the x-cordinates of the cursor.
* y: Specifies the y co-ordinate of the cursor.
*
* Returns: none.
*
*----------------------------------------------------------------------------
*/
static void
GXSetCursorPosition(ScrnInfoPtr pScrni, int x, int y)
{
static unsigned long panOffset = 0;
GeodeRec *pGeode = GEODEPTR(pScrni);
int newX, newY;
(*pGeode->Rotation) (x, y, pGeode->HDisplay, pGeode->VDisplay, &newX,
&newY);
(*pGeode->RBltXlat) (newX, newY, 32, 32, &newX, &newY);
if (newX < -31)
newX = -31;
if (newY < -31)
newY = -31;
gfx_set_cursor_position(pGeode->CursorStartOffset, newX + 31, newY + 31,
31, 31);
gfx_set_cursor_enable(1);
if ((pGeode->OverlayON) && (pGeode->Panel)) {
pGeode->PrevDisplayOffset = gfx_get_display_offset();
if (pGeode->PrevDisplayOffset != panOffset) {
GXSetVideoPosition(pGeode->video_x, pGeode->video_y,
pGeode->video_w, pGeode->video_h,
pGeode->video_srcw, pGeode->video_srch,
pGeode->video_dstw, pGeode->video_dsth,
pGeode->video_id, pGeode->video_offset,
pGeode->video_scrnptr);
panOffset = pGeode->PrevDisplayOffset;
}
}
}
/*----------------------------------------------------------------------------
* GXLoadCursorImage
*
* Description: This function loads the 32x32 cursor pattern.The shape
* and color is set by AND and XOR masking of arrays of 32
* DWORD.
* Parameters:
* pScrn: Screeen pointer structure.
* src: Specifies cursor data.
*
* Returns: none
*
*----------------------------------------------------------------------------
*/
void
GXLoadCursorImage(ScrnInfoPtr pScrni, unsigned char *src)
{
int i, n, x, y, newX, newY;
unsigned long andMask[32], xorMask[32];
GeodeRec *pGeode = GEODEPTR(pScrni);
unsigned long mskb, rowb;
unsigned char *rowp = &src[0];
unsigned char *mskp = &src[128];
if (src != NULL) {
mskb = rowb = 0;
for (y = 32; --y >= 0;)
andMask[y] = xorMask[y] = 0;
for (y = 0; y < 32; ++y) {
for (x = 0; x < 32; ++x) {
if ((i = x & 7) == 0) {
rowb = (*rowp & *mskp);
mskb = ~(*mskp);
++rowp;
++mskp;
}
(*pGeode->Rotation) (x, y, 32, 32, &newX, &newY);
i = 7 - i;
n = 31 - newX;
andMask[newY] |= (((mskb >> i) & 1) << n);
xorMask[newY] |= (((rowb >> i) & 1) << n);
}
}
} else {
for (y = 32; --y >= 0;) {
andMask[y] = ~0;
xorMask[y] = 0;
}
}
gfx_set_cursor_shape32(pGeode->CursorStartOffset, &andMask[0],
&xorMask[0]);
}
/*----------------------------------------------------------------------------
* GXHideCursor.
*
* Description: This function will disable the cursor.
*
* Parameters:
* pScrn: Handles to the Screeen pointer structure.
*
* Returns: none.
*
* Comments: gfx_set_cursor enable function is hardcoded to disable
* the cursor.
*----------------------------------------------------------------------------
*/
void
GXHideCursor(ScrnInfoPtr pScrni)
{
gfx_set_cursor_enable(0);
}
/*----------------------------------------------------------------------------
* GXShowCursor
*
* Description :This function will enable the cursor.
*
* Parameters:
* pScrn :Handles to the Screeen pointer structure.
*
* Returns :none
*
* Comments :gfx_set_cursor enable function is hardcoded to enable the
* cursor
*----------------------------------------------------------------------------
*/
void
GXShowCursor(ScrnInfoPtr pScrni)
{
GFX(set_cursor_enable(1));
}
/*----------------------------------------------------------------------------
* GXUseHwCursor.
*
* Description :This function will sets the hardware cursor flag in
* pscreen structure.
*
* Parameters.
* pScrn :Handles to the Screeen pointer structure.
*
* Returns :none
*
* Comments :none
*
*----------------------------------------------------------------------------
*/
static Bool
GXUseHWCursor(ScreenPtr pScrn, CursorPtr pCurs)
{
ScrnInfoPtr pScrni = XF86SCRNINFO(pScrn);
if (pScrni->currentMode->Flags & V_DBLSCAN)
return FALSE;
return TRUE;
}
/* End of File */
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