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+/* Copyright (c) 2003-2006 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.
+ * */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86Pci.h"
+#include "xf86PciInfo.h"
+#include "geode.h"
+
+/* Forward declarations of the functions */
+static void GXSetCursorColors(ScrnInfoPtr pScrni, int bg, int fg);
+static void GXSetCursorPosition(ScrnInfoPtr pScrni, int x, int y);
+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 savex, savey;
+ int newX, newY;
+
+ /* Adjust xf86HWCursor messing about */
+
+ savex = x + pScrni->frameX0;
+ savey = y + pScrni->frameY0;
+
+ switch(pGeode->rotation) {
+ default:
+ ErrorF("%s:%d invalid rotation %d\n", __func__, __LINE__, pGeode->rotation);
+ case RR_Rotate_0:
+ newX = savex; newY = savey;
+ break;
+
+ case RR_Rotate_90:
+ newX = savey;
+ newY = pScrni->pScreen->width - savex;
+ break;
+
+ case RR_Rotate_180:
+ newX = pScrni->pScreen->width - savex;
+ newY = pScrni->pScreen->height - savey;
+ break;
+
+ case RR_Rotate_270:
+ newX = pScrni->pScreen->height - savey;
+ newY = savex;
+ break;
+ }
+
+ newX += pScrni->frameX0;
+ newY += pScrni->frameY0;
+
+ //ErrorF("Turned (%d,%d) into (%d,%d)\n", x,y,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;
+ }
+
+ switch(pGeode->rotation) {
+ default:
+ ErrorF("%s:%d invalid rotation %d\n", __func__, __LINE__,
+ pGeode->rotation);
+ case RR_Rotate_0:
+ newX = x;
+ newY = y;
+ break;
+ case RR_Rotate_90:
+ newX = y;
+ newY = 31 - x;
+ break;
+ case RR_Rotate_180:
+ newX = 31 - x;
+ newY = 31 - y;
+ break;
+ case RR_Rotate_270:
+ newX = 31 - y;
+ newY = x;
+ break;
+ }
+
+ 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);
+ GeodeRec *pGeode = GEODEPTR(pScrni);
+
+ return pGeode->HWCursor;
+}