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-rw-r--r--src/atiscreen.c286
1 files changed, 286 insertions, 0 deletions
diff --git a/src/atiscreen.c b/src/atiscreen.c
index daf5a8c..ec784cb 100644
--- a/src/atiscreen.c
+++ b/src/atiscreen.c
@@ -19,17 +19,31 @@
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
+ *
+ * DRI support by:
+ * Gareth Hughes <gareth@valinux.com>
+ * José Fonseca <j_r_fonseca@yahoo.co.uk>
+ * Leif Delgass <ldelgass@retinalburn.net>
*/
#include "ati.h"
+#include "atibus.h"
+#include "atichip.h"
#include "atiaccel.h"
#include "aticonsole.h"
#include "aticursor.h"
#include "atidac.h"
#include "atidga.h"
+#include "atidri.h"
+#include "atimach64.h"
+#include "atimode.h"
#include "atiscreen.h"
#include "atistruct.h"
#include "atixv.h"
+#include "atimach64accel.h"
+
+#include "mach64_dri.h"
+#include "mach64_sarea.h"
#include "shadowfb.h"
#include "xf86cmap.h"
@@ -81,6 +95,24 @@ ATIRefreshArea
}
/*
+ * ATIMinBits --
+ *
+ * Compute log base 2 of val.
+ */
+static int
+ATIMinBits
+(
+ int val
+)
+{
+ int bits;
+
+ if (!val) return 1;
+ for (bits = 0; val; val >>= 1, ++bits);
+ return bits;
+}
+
+/*
* ATIScreenInit --
*
* This function is called by DIX to initialise the screen.
@@ -98,6 +130,7 @@ ATIScreenInit
ATIPtr pATI = ATIPTR(pScreenInfo);
pointer pFB;
int VisualMask;
+ BoxRec ScreenArea;
/* Set video hardware state */
if (!ATIEnterGraphics(pScreen, pScreenInfo, pATI))
@@ -122,6 +155,8 @@ ATIScreenInit
pATI->FBPitch = PixmapBytePad(pATI->displayWidth, pATI->depth);
if (pATI->OptionShadowFB)
{
+ pATI->FBBytesPerPixel = pATI->bitsPerPixel >> 3;
+ pATI->FBPitch = PixmapBytePad(pATI->displayWidth, pATI->depth);
if ((pATI->pShadow = xalloc(pATI->FBPitch * pScreenInfo->virtualY)))
{
pFB = pATI->pShadow;
@@ -134,6 +169,50 @@ ATIScreenInit
}
}
+#ifdef XF86DRI
+
+ /* Setup DRI after visuals have been established, but before
+ * cfbScreenInit is called. cfbScreenInit will eventually call the
+ * driver's InitGLXVisuals call back.
+ */
+
+ /* According to atiregs.h, GTPro (3D Rage Pro) is the first chip type with
+ * 3D triangle setup (the VERTEX_* registers)
+ */
+ if (pATI->Chip < ATI_CHIP_264GTPRO) {
+ xf86DrvMsg(iScreen, X_WARNING,
+ "Direct rendering is not supported for ATI chips earlier than "
+ "the ATI 3D Rage Pro.\n");
+ pATI->directRenderingEnabled = FALSE;
+ } else {
+ /* FIXME: When we move to dynamic allocation of back and depth
+ * buffers, we will want to revisit the following check for 3
+ * times the virtual size (or 2.5 times for 24-bit depth) of the screen below.
+ */
+ int cpp = pATI->bitsPerPixel >> 3;
+ int maxY = pScreenInfo->videoRam * 1024 / (pATI->displayWidth * cpp);
+ int requiredY;
+
+ requiredY = pScreenInfo->virtualY * 2 /* front, back buffers */
+ + (pScreenInfo->virtualY * 2 / cpp); /* depth buffer (always 16-bit) */
+
+ if (!pATI->OptionAccel) {
+ xf86DrvMsg(iScreen, X_WARNING,
+ "Acceleration disabled, not initializing the DRI\n");
+ pATI->directRenderingEnabled = FALSE;
+ } else if ( maxY > requiredY ) {
+ pATI->directRenderingEnabled = ATIDRIScreenInit(pScreen);
+ } else {
+ xf86DrvMsg(iScreen, X_WARNING,
+ "DRI static buffer allocation failed -- "
+ "need at least %d kB video memory\n",
+ (pScreenInfo->displayWidth * requiredY * cpp ) / 1024);
+ pATI->directRenderingEnabled = FALSE;
+ }
+ }
+
+#endif /* XF86DRI */
+
/* Initialise framebuffer layer */
switch (pATI->bitsPerPixel)
{
@@ -234,7 +313,183 @@ ATIScreenInit
#endif /* AVOID_CPIO */
+ /* Memory manager setup */
+
+#ifdef XF86DRI
+
+ if (pATI->directRenderingEnabled)
+ {
+ ATIDRIServerInfoPtr pATIDRIServer = pATI->pDRIServerInfo;
+ int cpp = pATI->bitsPerPixel >> 3;
+ int widthBytes = pScreenInfo->displayWidth * cpp;
+ int zWidthBytes = pScreenInfo->displayWidth * 2; /* always 16-bit z-buffer */
+ int fbSize = pScreenInfo->videoRam * 1024;
+ int bufferSize = pScreenInfo->virtualY * widthBytes;
+ int zBufferSize = pScreenInfo->virtualY * zWidthBytes;
+ int offscreenBytes, total, scanlines;
+
+ pATIDRIServer->fbX = 0;
+ pATIDRIServer->fbY = 0;
+ pATIDRIServer->frontOffset = 0;
+ pATIDRIServer->frontPitch = pScreenInfo->displayWidth;
+
+ /* Calculate memory remaining for pixcache and textures after
+ * front, back, and depth buffers
+ */
+ offscreenBytes = fbSize - ( 2 * bufferSize + zBufferSize );
+
+ if ( !pATIDRIServer->IsPCI && !pATI->OptionLocalTextures ) {
+ /* Don't allocate a local texture heap for AGP unless requested */
+ pATIDRIServer->textureSize = 0;
+ } else {
+ int l, maxPixcache;
+
+# ifdef XvExtension
+
+ int xvBytes;
+
+ /* Try for enough pixmap cache for DVD and a full viewport
+ */
+ xvBytes = 720*480*cpp; /* enough for single-buffered DVD */
+ maxPixcache = xvBytes > bufferSize ? xvBytes : bufferSize;
+
+# else /* XvExtension */
+
+ /* Try for one viewport */
+ maxPixcache = bufferSize;
+
+# endif /* XvExtension */
+
+ pATIDRIServer->textureSize = offscreenBytes - maxPixcache;
+
+ /* If that gives us less than half the offscreen mem available for textures, split
+ * the available mem between textures and pixmap cache
+ */
+ if (pATIDRIServer->textureSize < (offscreenBytes/2)) {
+ pATIDRIServer->textureSize = offscreenBytes/2;
+ }
+
+ if (pATIDRIServer->textureSize <= 0)
+ pATIDRIServer->textureSize = 0;
+
+ l = ATIMinBits((pATIDRIServer->textureSize-1) / MACH64_NR_TEX_REGIONS);
+ if (l < MACH64_LOG_TEX_GRANULARITY) l = MACH64_LOG_TEX_GRANULARITY;
+
+ /* Round the texture size up to the nearest whole number of
+ * texture regions. Again, be greedy about this, don't round
+ * down.
+ */
+ pATIDRIServer->logTextureGranularity = l;
+ pATIDRIServer->textureSize =
+ (pATIDRIServer->textureSize >> l) << l;
+ }
+
+ total = fbSize - pATIDRIServer->textureSize;
+ scanlines = total / widthBytes;
+ if (scanlines > ATIMach64MaxY) scanlines = ATIMach64MaxY;
+
+ /* Recalculate the texture offset and size to accomodate any
+ * rounding to a whole number of scanlines.
+ * FIXME: Is this actually needed?
+ */
+ pATIDRIServer->textureOffset = scanlines * widthBytes;
+ pATIDRIServer->textureSize = fbSize - pATIDRIServer->textureOffset;
+
+ /* Set a minimum usable local texture heap size. This will fit
+ * two 256x256 textures. We check this after any rounding of
+ * the texture area.
+ */
+ if (pATIDRIServer->textureSize < 256*256 * cpp * 2) {
+ pATIDRIServer->textureOffset = 0;
+ pATIDRIServer->textureSize = 0;
+ scanlines = fbSize / widthBytes;
+ if (scanlines > ATIMach64MaxY) scanlines = ATIMach64MaxY;
+ }
+
+ pATIDRIServer->depthOffset = scanlines * widthBytes - zBufferSize;
+ pATIDRIServer->depthPitch = pScreenInfo->displayWidth;
+ pATIDRIServer->depthY = pATIDRIServer->depthOffset/widthBytes;
+ pATIDRIServer->depthX = (pATIDRIServer->depthOffset -
+ (pATIDRIServer->depthY * widthBytes)) / cpp;
+
+ pATIDRIServer->backOffset = pATIDRIServer->depthOffset - bufferSize;
+ pATIDRIServer->backPitch = pScreenInfo->displayWidth;
+ pATIDRIServer->backY = pATIDRIServer->backOffset/widthBytes;
+ pATIDRIServer->backX = (pATIDRIServer->backOffset -
+ (pATIDRIServer->backY * widthBytes)) / cpp;
+
+ scanlines = fbSize / widthBytes;
+ if (scanlines > ATIMach64MaxY) scanlines = ATIMach64MaxY;
+
+ if ( pATIDRIServer->IsPCI && pATIDRIServer->textureSize == 0 ) {
+ xf86DrvMsg(iScreen, X_WARNING,
+ "Not enough memory for local textures, disabling DRI\n");
+ ATIDRICloseScreen(pScreen);
+ pATI->directRenderingEnabled = FALSE;
+ } else {
+
+ ScreenArea.x1 = 0;
+ ScreenArea.y1 = 0;
+ ScreenArea.x2 = pATI->displayWidth;
+ ScreenArea.y2 = scanlines;
+
+ if (!xf86InitFBManager(pScreen, &ScreenArea)) {
+ xf86DrvMsg(pScreenInfo->scrnIndex, X_ERROR,
+ "Memory manager initialization to (%d,%d) (%d,%d) failed\n",
+ ScreenArea.x1, ScreenArea.y1,
+ ScreenArea.x2, ScreenArea.y2);
+ return FALSE;
+ } else {
+ int width, height;
+
+ xf86DrvMsg(pScreenInfo->scrnIndex, X_INFO,
+ "Memory manager initialized to (%d,%d) (%d,%d)\n",
+ ScreenArea.x1, ScreenArea.y1, ScreenArea.x2, ScreenArea.y2);
+
+ if (xf86QueryLargestOffscreenArea(pScreen, &width, &height, 0, 0, 0)) {
+ xf86DrvMsg(pScreenInfo->scrnIndex, X_INFO,
+ "Largest offscreen area available: %d x %d\n",
+ width, height);
+
+ /* lines in offscreen area needed for depth buffer and textures */
+ pATI->depthTexLines = scanlines
+ - pATIDRIServer->depthOffset / widthBytes;
+ pATI->backLines = scanlines
+ - pATIDRIServer->backOffset / widthBytes
+ - pATI->depthTexLines;
+ pATI->depthTexArea = NULL;
+ pATI->backArea = NULL;
+ } else {
+ xf86DrvMsg(pScreenInfo->scrnIndex, X_ERROR,
+ "Unable to determine largest offscreen area available\n");
+ return FALSE;
+ }
+
+ }
+
+ xf86DrvMsg(iScreen, X_INFO, "Will use %d kB of offscreen memory for XAA\n",
+ (offscreenBytes - pATIDRIServer->textureSize)/1024);
+
+ xf86DrvMsg(iScreen, X_INFO, "Will use back buffer at offset 0x%x\n",
+ pATIDRIServer->backOffset);
+
+ xf86DrvMsg(iScreen, X_INFO, "Will use depth buffer at offset 0x%x\n",
+ pATIDRIServer->depthOffset);
+
+ if (pATIDRIServer->textureSize > 0) {
+ xf86DrvMsg(pScreenInfo->scrnIndex, X_INFO,
+ "Will use %d kB for local textures at offset 0x%x\n",
+ pATIDRIServer->textureSize/1024,
+ pATIDRIServer->textureOffset);
+ }
+ }
+ }
+
+#endif /* XF86DRI */
+
/* Setup acceleration */
+ /* If direct rendering is not enabled, the framebuffer memory
+ * manager is initialized by this function call */
if (!ATIInitializeAcceleration(pScreen, pScreenInfo, pATI))
return FALSE;
@@ -294,6 +549,26 @@ ATIScreenInit
if (serverGeneration == 1)
xf86ShowUnusedOptions(pScreenInfo->scrnIndex, pScreenInfo->options);
+#ifdef XF86DRI
+
+ /* DRI finalization */
+ if (pATI->directRenderingEnabled) {
+ /* Now that mi, cfb, drm and others have done their thing,
+ * complete the DRI setup.
+ */
+ pATI->directRenderingEnabled = ATIDRIFinishScreenInit(pScreen);
+ }
+ if (pATI->directRenderingEnabled) {
+ xf86DrvMsg(pScreenInfo->scrnIndex, X_INFO,
+ "Direct rendering enabled\n");
+ } else {
+ /* FIXME: Release unused offscreen mem here? */
+ xf86DrvMsg(pScreenInfo->scrnIndex, X_INFO,
+ "Direct rendering disabled\n");
+ }
+
+#endif /* XF86DRI */
+
return TRUE;
}
@@ -313,6 +588,17 @@ ATICloseScreen
ATIPtr pATI = ATIPTR(pScreenInfo);
Bool Closed = TRUE;
+#ifdef XF86DRI
+
+ /* Disable direct rendering */
+ if (pATI->directRenderingEnabled)
+ {
+ ATIDRICloseScreen(pScreen);
+ pATI->directRenderingEnabled = FALSE;
+ }
+
+#endif /* XF86DRI */
+
ATICloseXVideo(pScreen, pScreenInfo, pATI);
if (pATI->pXAAInfo)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 12:40:43 +0000