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Diffstat (limited to 'src/mesa/drivers/dri/r128/r128_ioctl.c')
-rw-r--r--src/mesa/drivers/dri/r128/r128_ioctl.c812
1 files changed, 812 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r128/r128_ioctl.c b/src/mesa/drivers/dri/r128/r128_ioctl.c
new file mode 100644
index 0000000000..c5843473e1
--- /dev/null
+++ b/src/mesa/drivers/dri/r128/r128_ioctl.c
@@ -0,0 +1,812 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_ioctl.c,v 1.10 2002/12/16 16:18:53 dawes Exp $ */
+/**************************************************************************
+
+Copyright 1999, 2000 ATI Technologies Inc. and Precision Insight, Inc.,
+ Cedar Park, Texas.
+All Rights Reserved.
+
+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
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, 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 (including the next
+paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ATI, PRECISION INSIGHT AND/OR THEIR SUPPLIERS 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.
+
+**************************************************************************/
+
+/*
+ * Authors:
+ * Gareth Hughes <gareth@valinux.com>
+ *
+ */
+#include <errno.h>
+
+#include "r128_context.h"
+#include "r128_state.h"
+#include "r128_ioctl.h"
+#include "r128_macros.h"
+
+#include "imports.h"
+#include "macros.h"
+
+#include "swrast/swrast.h"
+
+#include "vblank.h"
+
+#define R128_TIMEOUT 2048
+#define R128_IDLE_RETRY 32
+
+
+/* =============================================================
+ * Hardware vertex buffer handling
+ */
+
+/* Get a new VB from the pool of vertex buffers in AGP space.
+ */
+drmBufPtr r128GetBufferLocked( r128ContextPtr rmesa )
+{
+ int fd = rmesa->r128Screen->driScreen->fd;
+ int index = 0;
+ int size = 0;
+ drmDMAReq dma;
+ drmBufPtr buf = NULL;
+ int to = 0;
+ int ret;
+
+ dma.context = rmesa->hHWContext;
+ dma.send_count = 0;
+ dma.send_list = NULL;
+ dma.send_sizes = NULL;
+ dma.flags = 0;
+ dma.request_count = 1;
+ dma.request_size = R128_BUFFER_SIZE;
+ dma.request_list = &index;
+ dma.request_sizes = &size;
+ dma.granted_count = 0;
+
+ while ( !buf && ( to++ < R128_TIMEOUT ) ) {
+ ret = drmDMA( fd, &dma );
+
+ if ( ret == 0 ) {
+ buf = &rmesa->r128Screen->buffers->list[index];
+ buf->used = 0;
+#if ENABLE_PERF_BOXES
+ /* Bump the performance counter */
+ rmesa->c_vertexBuffers++;
+#endif
+ return buf;
+ }
+ }
+
+ if ( !buf ) {
+ drmCommandNone( fd, DRM_R128_CCE_RESET);
+ UNLOCK_HARDWARE( rmesa );
+ fprintf( stderr, "Error: Could not get new VB... exiting\n" );
+ exit( -1 );
+ }
+
+ return buf;
+}
+
+void r128FlushVerticesLocked( r128ContextPtr rmesa )
+{
+ XF86DRIClipRectPtr pbox = rmesa->pClipRects;
+ int nbox = rmesa->numClipRects;
+ drmBufPtr buffer = rmesa->vert_buf;
+ int count = rmesa->num_verts;
+ int prim = rmesa->hw_primitive;
+ int fd = rmesa->driScreen->fd;
+ drmR128Vertex vertex;
+ int i;
+
+ rmesa->num_verts = 0;
+ rmesa->vert_buf = NULL;
+
+ if ( !buffer )
+ return;
+
+ if ( rmesa->dirty & ~R128_UPLOAD_CLIPRECTS )
+ r128EmitHwStateLocked( rmesa );
+
+ if ( !nbox )
+ count = 0;
+
+ if ( nbox >= R128_NR_SAREA_CLIPRECTS )
+ rmesa->dirty |= R128_UPLOAD_CLIPRECTS;
+
+ if ( !count || !(rmesa->dirty & R128_UPLOAD_CLIPRECTS) )
+ {
+ if ( nbox < 3 ) {
+ rmesa->sarea->nbox = 0;
+ } else {
+ rmesa->sarea->nbox = nbox;
+ }
+
+ vertex.prim = prim;
+ vertex.idx = buffer->idx;
+ vertex.count = count;
+ vertex.discard = 1;
+ drmCommandWrite( fd, DRM_R128_VERTEX, &vertex, sizeof(drmR128Vertex) );
+ }
+ else
+ {
+ for ( i = 0 ; i < nbox ; ) {
+ int nr = MIN2( i + R128_NR_SAREA_CLIPRECTS, nbox );
+ XF86DRIClipRectPtr b = rmesa->sarea->boxes;
+ int discard = 0;
+
+ rmesa->sarea->nbox = nr - i;
+ for ( ; i < nr ; i++ ) {
+ *b++ = pbox[i];
+ }
+
+ /* Finished with the buffer?
+ */
+ if ( nr == nbox ) {
+ discard = 1;
+ }
+
+ rmesa->sarea->dirty |= R128_UPLOAD_CLIPRECTS;
+
+ vertex.prim = prim;
+ vertex.idx = buffer->idx;
+ vertex.count = count;
+ vertex.discard = discard;
+ drmCommandWrite( fd, DRM_R128_VERTEX, &vertex, sizeof(drmR128Vertex) );
+ }
+ }
+
+ rmesa->dirty &= ~R128_UPLOAD_CLIPRECTS;
+}
+
+
+
+
+
+/* ================================================================
+ * Texture uploads
+ */
+
+void r128FireBlitLocked( r128ContextPtr rmesa, drmBufPtr buffer,
+ GLint offset, GLint pitch, GLint format,
+ GLint x, GLint y, GLint width, GLint height )
+{
+ drmR128Blit blit;
+ GLint ret;
+
+ blit.idx = buffer->idx;
+ blit.offset = offset;
+ blit.pitch = pitch;
+ blit.format = format;
+ blit.x = x;
+ blit.y = y;
+ blit.width = width;
+ blit.height = height;
+
+ ret = drmCommandWrite( rmesa->driFd, DRM_R128_BLIT,
+ &blit, sizeof(drmR128Blit) );
+
+ if ( ret ) {
+ UNLOCK_HARDWARE( rmesa );
+ fprintf( stderr, "DRM_R128_BLIT: return = %d\n", ret );
+ exit( 1 );
+ }
+}
+
+
+/* ================================================================
+ * SwapBuffers with client-side throttling
+ */
+
+static void delay( void ) {
+/* Prevent an optimizing compiler from removing a spin loop */
+}
+
+#define R128_MAX_OUTSTANDING 2
+
+/* Throttle the frame rate -- only allow one pending swap buffers
+ * request at a time.
+ * GH: We probably don't want a timeout here, as we can wait as
+ * long as we want for a frame to complete. If it never does, then
+ * the card has locked.
+ */
+static int r128WaitForFrameCompletion( r128ContextPtr rmesa )
+{
+ unsigned char *R128MMIO = rmesa->r128Screen->mmio.map;
+ CARD32 frame;
+ int i;
+ int wait = 0;
+
+ while ( 1 ) {
+ frame = INREG( R128_LAST_FRAME_REG );
+ if ( rmesa->sarea->last_frame - frame <= R128_MAX_OUTSTANDING ) {
+ break;
+ }
+
+ /* Spin in place a bit so we aren't hammering the register */
+ wait++;
+ for ( i = 0 ; i < 1024 ; i++ ) {
+ delay();
+ }
+ }
+
+ return wait;
+}
+
+/* Copy the back color buffer to the front color buffer.
+ */
+void r128CopyBuffer( const __DRIdrawablePrivate *dPriv )
+{
+ r128ContextPtr rmesa;
+ GLint nbox, i, ret;
+ GLboolean missed_target;
+
+ assert(dPriv);
+ assert(dPriv->driContextPriv);
+ assert(dPriv->driContextPriv->driverPrivate);
+
+ rmesa = (r128ContextPtr) dPriv->driContextPriv->driverPrivate;
+
+ if ( R128_DEBUG & DEBUG_VERBOSE_API ) {
+ fprintf( stderr, "\n********************************\n" );
+ fprintf( stderr, "\n%s( %p )\n\n",
+ __FUNCTION__, rmesa->glCtx );
+ fflush( stderr );
+ }
+
+ FLUSH_BATCH( rmesa );
+
+ LOCK_HARDWARE( rmesa );
+
+ /* Throttle the frame rate -- only allow one pending swap buffers
+ * request at a time.
+ */
+ if ( !r128WaitForFrameCompletion( rmesa ) ) {
+ rmesa->hardwareWentIdle = 1;
+ } else {
+ rmesa->hardwareWentIdle = 0;
+ }
+
+ UNLOCK_HARDWARE( rmesa );
+ driWaitForVBlank( dPriv, &rmesa->vbl_seq, rmesa->vblank_flags, &missed_target );
+ LOCK_HARDWARE( rmesa );
+
+ nbox = dPriv->numClipRects; /* must be in locked region */
+
+ for ( i = 0 ; i < nbox ; ) {
+ GLint nr = MIN2( i + R128_NR_SAREA_CLIPRECTS , nbox );
+ XF86DRIClipRectPtr box = dPriv->pClipRects;
+ XF86DRIClipRectPtr b = rmesa->sarea->boxes;
+ GLint n = 0;
+
+ for ( ; i < nr ; i++ ) {
+ *b++ = *(XF86DRIClipRectRec *)&box[i];
+ n++;
+ }
+ rmesa->sarea->nbox = n;
+
+ ret = drmCommandNone( rmesa->driFd, DRM_R128_SWAP );
+
+ if ( ret ) {
+ UNLOCK_HARDWARE( rmesa );
+ fprintf( stderr, "DRM_R128_SWAP: return = %d\n", ret );
+ exit( 1 );
+ }
+ }
+
+ if ( R128_DEBUG & DEBUG_ALWAYS_SYNC ) {
+ i = 0;
+ do {
+ ret = drmCommandNone(rmesa->driFd, DRM_R128_CCE_IDLE);
+ } while ( ret && errno == EBUSY && i++ < R128_IDLE_RETRY );
+ }
+
+ UNLOCK_HARDWARE( rmesa );
+
+ rmesa->new_state |= R128_NEW_CONTEXT;
+ rmesa->dirty |= (R128_UPLOAD_CONTEXT |
+ R128_UPLOAD_MASKS |
+ R128_UPLOAD_CLIPRECTS);
+
+#if ENABLE_PERF_BOXES
+ /* Log the performance counters if necessary */
+ r128PerformanceCounters( rmesa );
+#endif
+}
+
+void r128PageFlip( const __DRIdrawablePrivate *dPriv )
+{
+ r128ContextPtr rmesa;
+ GLint ret;
+ GLboolean missed_target;
+
+ assert(dPriv);
+ assert(dPriv->driContextPriv);
+ assert(dPriv->driContextPriv->driverPrivate);
+
+ rmesa = (r128ContextPtr) dPriv->driContextPriv->driverPrivate;
+
+ if ( R128_DEBUG & DEBUG_VERBOSE_API ) {
+ fprintf( stderr, "\n%s( %p ): page=%d\n\n",
+ __FUNCTION__, rmesa->glCtx, rmesa->sarea->pfCurrentPage );
+ }
+
+ FLUSH_BATCH( rmesa );
+
+ LOCK_HARDWARE( rmesa );
+
+ /* Throttle the frame rate -- only allow one pending swap buffers
+ * request at a time.
+ */
+ if ( !r128WaitForFrameCompletion( rmesa ) ) {
+ rmesa->hardwareWentIdle = 1;
+ } else {
+ rmesa->hardwareWentIdle = 0;
+ }
+
+ UNLOCK_HARDWARE( rmesa );
+ driWaitForVBlank( dPriv, &rmesa->vbl_seq, rmesa->vblank_flags, &missed_target );
+ LOCK_HARDWARE( rmesa );
+
+ /* The kernel will have been initialized to perform page flipping
+ * on a swapbuffers ioctl.
+ */
+ ret = drmCommandNone( rmesa->driFd, DRM_R128_FLIP );
+
+ UNLOCK_HARDWARE( rmesa );
+
+ if ( ret ) {
+ fprintf( stderr, "DRM_R128_FLIP: return = %d\n", ret );
+ exit( 1 );
+ }
+
+ if ( rmesa->sarea->pfCurrentPage == 1 ) {
+ rmesa->drawOffset = rmesa->r128Screen->frontOffset;
+ rmesa->drawPitch = rmesa->r128Screen->frontPitch;
+ } else {
+ rmesa->drawOffset = rmesa->r128Screen->backOffset;
+ rmesa->drawPitch = rmesa->r128Screen->backPitch;
+ }
+
+ rmesa->setup.dst_pitch_offset_c = (((rmesa->drawPitch/8) << 21) |
+ (rmesa->drawOffset >> 5));
+ rmesa->new_state |= R128_NEW_WINDOW;
+
+ /* FIXME: Do we need this anymore? */
+ rmesa->new_state |= R128_NEW_CONTEXT;
+ rmesa->dirty |= (R128_UPLOAD_CONTEXT |
+ R128_UPLOAD_MASKS |
+ R128_UPLOAD_CLIPRECTS);
+
+#if ENABLE_PERF_BOXES
+ /* Log the performance counters if necessary */
+ r128PerformanceCounters( rmesa );
+#endif
+}
+
+
+/* ================================================================
+ * Buffer clear
+ */
+
+static void r128DDClear( GLcontext *ctx, GLbitfield mask, GLboolean all,
+ GLint cx, GLint cy, GLint cw, GLint ch )
+{
+ r128ContextPtr rmesa = R128_CONTEXT(ctx);
+ __DRIdrawablePrivate *dPriv = rmesa->driDrawable;
+ drmR128Clear clear;
+ GLuint flags = 0;
+ GLint i;
+ GLint ret;
+
+ if ( R128_DEBUG & DEBUG_VERBOSE_API ) {
+ fprintf( stderr, "%s:\n", __FUNCTION__ );
+ }
+
+ FLUSH_BATCH( rmesa );
+
+ /* The only state change we care about here is the RGBA colormask
+ * We'll just update that state, if needed. If we do more then
+ * there's some strange side-effects that the conformance tests find.
+ */
+ if ( rmesa->new_state & R128_NEW_MASKS) {
+ const GLuint save_state = rmesa->new_state;
+ rmesa->new_state = R128_NEW_MASKS;
+ r128DDUpdateHWState( ctx );
+ rmesa->new_state = save_state & ~R128_NEW_MASKS;
+ }
+
+ if ( mask & DD_FRONT_LEFT_BIT ) {
+ flags |= DRM_R128_FRONT_BUFFER;
+ mask &= ~DD_FRONT_LEFT_BIT;
+ }
+
+ if ( mask & DD_BACK_LEFT_BIT ) {
+ flags |= DRM_R128_BACK_BUFFER;
+ mask &= ~DD_BACK_LEFT_BIT;
+ }
+
+ if ( ( mask & DD_DEPTH_BIT ) && ctx->Depth.Mask ) {
+ flags |= DRM_R128_DEPTH_BUFFER;
+ mask &= ~DD_DEPTH_BIT;
+ }
+#if 0
+ /* FIXME: Add stencil support */
+ if ( mask & DD_STENCIL_BIT ) {
+ flags |= DRM_R128_DEPTH_BUFFER;
+ mask &= ~DD_STENCIL_BIT;
+ }
+#endif
+
+ if ( flags ) {
+
+ /* Flip top to bottom */
+ cx += dPriv->x;
+ cy = dPriv->y + dPriv->h - cy - ch;
+
+ LOCK_HARDWARE( rmesa );
+
+ /* FIXME: Do we actually need this?
+ */
+ if ( rmesa->dirty & ~R128_UPLOAD_CLIPRECTS ) {
+ r128EmitHwStateLocked( rmesa );
+ }
+
+ for ( i = 0 ; i < rmesa->numClipRects ; ) {
+ GLint nr = MIN2( i + R128_NR_SAREA_CLIPRECTS , rmesa->numClipRects );
+ XF86DRIClipRectPtr box = rmesa->pClipRects;
+ XF86DRIClipRectPtr b = rmesa->sarea->boxes;
+ GLint n = 0;
+
+ if ( !all ) {
+ for ( ; i < nr ; i++ ) {
+ GLint x = box[i].x1;
+ GLint y = box[i].y1;
+ GLint w = box[i].x2 - x;
+ GLint h = box[i].y2 - y;
+
+ if ( x < cx ) w -= cx - x, x = cx;
+ if ( y < cy ) h -= cy - y, y = cy;
+ if ( x + w > cx + cw ) w = cx + cw - x;
+ if ( y + h > cy + ch ) h = cy + ch - y;
+ if ( w <= 0 ) continue;
+ if ( h <= 0 ) continue;
+
+ b->x1 = x;
+ b->y1 = y;
+ b->x2 = x + w;
+ b->y2 = y + h;
+ b++;
+ n++;
+ }
+ } else {
+ for ( ; i < nr ; i++ ) {
+ *b++ = *(XF86DRIClipRectPtr)&box[i];
+ n++;
+ }
+ }
+
+ rmesa->sarea->nbox = n;
+
+ if ( R128_DEBUG & DEBUG_VERBOSE_IOCTL ) {
+ fprintf( stderr,
+ "DRM_R128_CLEAR: flag 0x%x color %x depth %x nbox %d\n",
+ flags,
+ (GLuint)rmesa->ClearColor,
+ (GLuint)rmesa->ClearDepth,
+ rmesa->sarea->nbox );
+ }
+
+ clear.flags = flags;
+ clear.clear_color = rmesa->ClearColor;
+ clear.clear_depth = rmesa->ClearDepth;
+ clear.color_mask = rmesa->setup.plane_3d_mask_c;
+ clear.depth_mask = ~0;
+
+ ret = drmCommandWrite( rmesa->driFd, DRM_R128_CLEAR,
+ &clear, sizeof(drmR128Clear) );
+
+ if ( ret ) {
+ UNLOCK_HARDWARE( rmesa );
+ fprintf( stderr, "DRM_R128_CLEAR: return = %d\n", ret );
+ exit( 1 );
+ }
+ }
+
+ UNLOCK_HARDWARE( rmesa );
+
+ rmesa->dirty |= R128_UPLOAD_CLIPRECTS;
+ }
+
+ if ( mask )
+ _swrast_Clear( ctx, mask, all, cx, cy, cw, ch );
+}
+
+
+/* ================================================================
+ * Depth spans, pixels
+ */
+
+void r128WriteDepthSpanLocked( r128ContextPtr rmesa,
+ GLuint n, GLint x, GLint y,
+ const GLdepth depth[],
+ const GLubyte mask[] )
+{
+ XF86DRIClipRectPtr pbox = rmesa->pClipRects;
+ drmR128Depth d;
+ int nbox = rmesa->numClipRects;
+ int fd = rmesa->driScreen->fd;
+ int i;
+
+ if ( !nbox || !n ) {
+ return;
+ }
+ if ( nbox >= R128_NR_SAREA_CLIPRECTS ) {
+ rmesa->dirty |= R128_UPLOAD_CLIPRECTS;
+ }
+
+ if ( !(rmesa->dirty & R128_UPLOAD_CLIPRECTS) )
+ {
+ if ( nbox < 3 ) {
+ rmesa->sarea->nbox = 0;
+ } else {
+ rmesa->sarea->nbox = nbox;
+ }
+
+ d.func = DRM_R128_WRITE_SPAN;
+ d.n = n;
+ d.x = (int*)&x;
+ d.y = (int*)&y;
+ d.buffer = (unsigned int *)depth;
+ d.mask = (unsigned char *)mask;
+
+ drmCommandWrite( fd, DRM_R128_DEPTH, &d, sizeof(drmR128Depth));
+
+ }
+ else
+ {
+ for (i = 0 ; i < nbox ; ) {
+ int nr = MIN2( i + R128_NR_SAREA_CLIPRECTS, nbox );
+ XF86DRIClipRectPtr b = rmesa->sarea->boxes;
+
+ rmesa->sarea->nbox = nr - i;
+ for ( ; i < nr ; i++) {
+ *b++ = pbox[i];
+ }
+
+ rmesa->sarea->dirty |= R128_UPLOAD_CLIPRECTS;
+
+ d.func = DRM_R128_WRITE_SPAN;
+ d.n = n;
+ d.x = (int*)&x;
+ d.y = (int*)&y;
+ d.buffer = (unsigned int *)depth;
+ d.mask = (unsigned char *)mask;
+
+ drmCommandWrite( fd, DRM_R128_DEPTH, &d, sizeof(drmR128Depth));
+ }
+ }
+
+ rmesa->dirty &= ~R128_UPLOAD_CLIPRECTS;
+}
+
+void r128WriteDepthPixelsLocked( r128ContextPtr rmesa, GLuint n,
+ const GLint x[], const GLint y[],
+ const GLdepth depth[],
+ const GLubyte mask[] )
+{
+ XF86DRIClipRectPtr pbox = rmesa->pClipRects;
+ drmR128Depth d;
+ int nbox = rmesa->numClipRects;
+ int fd = rmesa->driScreen->fd;
+ int i;
+
+ if ( !nbox || !n ) {
+ return;
+ }
+ if ( nbox >= R128_NR_SAREA_CLIPRECTS ) {
+ rmesa->dirty |= R128_UPLOAD_CLIPRECTS;
+ }
+
+ if ( !(rmesa->dirty & R128_UPLOAD_CLIPRECTS) )
+ {
+ if ( nbox < 3 ) {
+ rmesa->sarea->nbox = 0;
+ } else {
+ rmesa->sarea->nbox = nbox;
+ }
+
+ d.func = DRM_R128_WRITE_PIXELS;
+ d.n = n;
+ d.x = (int*)&x;
+ d.y = (int*)&y;
+ d.buffer = (unsigned int *)depth;
+ d.mask = (unsigned char *)mask;
+
+ drmCommandWrite( fd, DRM_R128_DEPTH, &d, sizeof(drmR128Depth));
+ }
+ else
+ {
+ for (i = 0 ; i < nbox ; ) {
+ int nr = MIN2( i + R128_NR_SAREA_CLIPRECTS, nbox );
+ XF86DRIClipRectPtr b = rmesa->sarea->boxes;
+
+ rmesa->sarea->nbox = nr - i;
+ for ( ; i < nr ; i++) {
+ *b++ = pbox[i];
+ }
+
+ rmesa->sarea->dirty |= R128_UPLOAD_CLIPRECTS;
+
+ d.func = DRM_R128_WRITE_PIXELS;
+ d.n = n;
+ d.x = (int*)&x;
+ d.y = (int*)&y;
+ d.buffer = (unsigned int *)depth;
+ d.mask = (unsigned char *)mask;
+
+ drmCommandWrite( fd, DRM_R128_DEPTH, &d, sizeof(drmR128Depth));
+ }
+ }
+
+ rmesa->dirty &= ~R128_UPLOAD_CLIPRECTS;
+}
+
+void r128ReadDepthSpanLocked( r128ContextPtr rmesa,
+ GLuint n, GLint x, GLint y )
+{
+ XF86DRIClipRectPtr pbox = rmesa->pClipRects;
+ drmR128Depth d;
+ int nbox = rmesa->numClipRects;
+ int fd = rmesa->driScreen->fd;
+ int i;
+
+ if ( !nbox || !n ) {
+ return;
+ }
+ if ( nbox >= R128_NR_SAREA_CLIPRECTS ) {
+ rmesa->dirty |= R128_UPLOAD_CLIPRECTS;
+ }
+
+ if ( !(rmesa->dirty & R128_UPLOAD_CLIPRECTS) )
+ {
+ if ( nbox < 3 ) {
+ rmesa->sarea->nbox = 0;
+ } else {
+ rmesa->sarea->nbox = nbox;
+ }
+
+ d.func = DRM_R128_READ_SPAN;
+ d.n = n;
+ d.x = (int*)&x;
+ d.y = (int*)&y;
+ d.buffer = NULL;
+ d.mask = NULL;
+
+ drmCommandWrite( fd, DRM_R128_DEPTH, &d, sizeof(drmR128Depth));
+ }
+ else
+ {
+ for (i = 0 ; i < nbox ; ) {
+ int nr = MIN2( i + R128_NR_SAREA_CLIPRECTS, nbox );
+ XF86DRIClipRectPtr b = rmesa->sarea->boxes;
+
+ rmesa->sarea->nbox = nr - i;
+ for ( ; i < nr ; i++) {
+ *b++ = pbox[i];
+ }
+
+ rmesa->sarea->dirty |= R128_UPLOAD_CLIPRECTS;
+
+ d.func = DRM_R128_READ_SPAN;
+ d.n = n;
+ d.x = (int*)&x;
+ d.y = (int*)&y;
+ d.buffer = NULL;
+ d.mask = NULL;
+
+ drmCommandWrite( fd, DRM_R128_DEPTH, &d, sizeof(drmR128Depth));
+ }
+ }
+
+ rmesa->dirty &= ~R128_UPLOAD_CLIPRECTS;
+}
+
+void r128ReadDepthPixelsLocked( r128ContextPtr rmesa, GLuint n,
+ const GLint x[], const GLint y[] )
+{
+ XF86DRIClipRectPtr pbox = rmesa->pClipRects;
+ drmR128Depth d;
+ int nbox = rmesa->numClipRects;
+ int fd = rmesa->driScreen->fd;
+ int i;
+
+ if ( !nbox || !n ) {
+ return;
+ }
+ if ( nbox >= R128_NR_SAREA_CLIPRECTS ) {
+ rmesa->dirty |= R128_UPLOAD_CLIPRECTS;
+ }
+
+ if ( !(rmesa->dirty & R128_UPLOAD_CLIPRECTS) )
+ {
+ if ( nbox < 3 ) {
+ rmesa->sarea->nbox = 0;
+ } else {
+ rmesa->sarea->nbox = nbox;
+ }
+
+ d.func = DRM_R128_READ_PIXELS;
+ d.n = n;
+ d.x = (int*)&x;
+ d.y = (int*)&y;
+ d.buffer = NULL;
+ d.mask = NULL;
+
+ drmCommandWrite( fd, DRM_R128_DEPTH, &d, sizeof(drmR128Depth));
+ }
+ else
+ {
+ for (i = 0 ; i < nbox ; ) {
+ int nr = MIN2( i + R128_NR_SAREA_CLIPRECTS, nbox );
+ XF86DRIClipRectPtr b = rmesa->sarea->boxes;
+
+ rmesa->sarea->nbox = nr - i;
+ for ( ; i < nr ; i++) {
+ *b++ = pbox[i];
+ }
+
+ rmesa->sarea->dirty |= R128_UPLOAD_CLIPRECTS;
+
+ d.func = DRM_R128_READ_PIXELS;
+ d.n = n;
+ d.x = (int*)&x;
+ d.y = (int*)&y;
+ d.buffer = NULL;
+ d.mask = NULL;
+
+ drmCommandWrite( fd, DRM_R128_DEPTH, &d, sizeof(drmR128Depth));
+ }
+ }
+
+ rmesa->dirty &= ~R128_UPLOAD_CLIPRECTS;
+}
+
+
+void r128WaitForIdleLocked( r128ContextPtr rmesa )
+{
+ int fd = rmesa->r128Screen->driScreen->fd;
+ int to = 0;
+ int ret, i;
+
+ do {
+ i = 0;
+ do {
+ ret = drmCommandNone( fd, DRM_R128_CCE_IDLE);
+ } while ( ret && errno == EBUSY && i++ < R128_IDLE_RETRY );
+ } while ( ( ret == -EBUSY ) && ( to++ < R128_TIMEOUT ) );
+
+ if ( ret < 0 ) {
+ drmCommandNone( fd, DRM_R128_CCE_RESET);
+ UNLOCK_HARDWARE( rmesa );
+ fprintf( stderr, "Error: Rage 128 timed out... exiting\n" );
+ exit( -1 );
+ }
+}
+
+void r128DDInitIoctlFuncs( GLcontext *ctx )
+{
+ ctx->Driver.Clear = r128DDClear;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-29 23:36:53 +0000