/************************************************************************** * * Copyright 2003 Tungsten Graphics, 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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. * **************************************************************************/ #include "intel_screen.h" #include "intel_context.h" #include "intel_swapbuffers.h" #include "intel_reg.h" #include "pipe/p_context.h" #include "state_tracker/st_public.h" #include "state_tracker/st_context.h" #include "state_tracker/st_cb_fbo.h" #include "ws_dri_bufmgr.h" #include "intel_batchbuffer.h" /** * Display a colorbuffer surface in an X window. * Used for SwapBuffers and flushing front buffer rendering. * * \param dPriv the window/drawable to display into * \param surf the surface to display * \param rect optional subrect of surface to display (may be NULL). */ void intelDisplaySurface(__DRIdrawablePrivate *dPriv, struct pipe_surface *surf, const drm_clip_rect_t *rect) { struct intel_screen *intelScreen = intel_screen(dPriv->driScreenPriv); struct intel_context *intel = intelScreen->dummyContext; DBG(SWAP, "%s\n", __FUNCTION__); if (!intel) { /* XXX this is where some kind of extra/meta context could be useful */ return; } if (intel->last_swap_fence) { driFenceFinish(intel->last_swap_fence, DRM_FENCE_TYPE_EXE, TRUE); driFenceUnReference(&intel->last_swap_fence); intel->last_swap_fence = NULL; } intel->last_swap_fence = intel->first_swap_fence; intel->first_swap_fence = NULL; /* The LOCK_HARDWARE is required for the cliprects. Buffer offsets * should work regardless. */ LOCK_HARDWARE(intel); /* if this drawable isn't currently bound the LOCK_HARDWARE done on the * current context (which is what intelScreenContext should return) might * not get a contended lock and thus cliprects not updated (tests/manywin) */ if (intel_context(dPriv->driContextPriv) != intel) DRI_VALIDATE_DRAWABLE_INFO(intel->driScreen, dPriv); if (dPriv && dPriv->numClipRects) { const int srcWidth = surf->width; const int srcHeight = surf->height; const int nbox = dPriv->numClipRects; const drm_clip_rect_t *pbox = dPriv->pClipRects; const int pitch = intelScreen->front.pitch / intelScreen->front.cpp; const int cpp = intelScreen->front.cpp; const int srcpitch = surf->stride / cpp; int BR13, CMD; int i; ASSERT(surf->buffer); DBG(SWAP, "screen pitch %d src surface pitch %d\n", pitch, surf->stride); if (cpp == 2) { BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24); CMD = XY_SRC_COPY_BLT_CMD; } else { BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24) | (1 << 25); CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA | XY_SRC_COPY_BLT_WRITE_RGB); } for (i = 0; i < nbox; i++, pbox++) { drm_clip_rect_t box; drm_clip_rect_t sbox; if (pbox->x1 > pbox->x2 || pbox->y1 > pbox->y2 || pbox->x2 > intelScreen->front.width || pbox->y2 > intelScreen->front.height) { /* invalid cliprect, skip it */ continue; } box = *pbox; if (rect) { /* intersect cliprect with user-provided src rect */ drm_clip_rect_t rrect; rrect.x1 = dPriv->x + rect->x1; rrect.y1 = (dPriv->h - rect->y1 - rect->y2) + dPriv->y; rrect.x2 = rect->x2 + rrect.x1; rrect.y2 = rect->y2 + rrect.y1; if (rrect.x1 > box.x1) box.x1 = rrect.x1; if (rrect.y1 > box.y1) box.y1 = rrect.y1; if (rrect.x2 < box.x2) box.x2 = rrect.x2; if (rrect.y2 < box.y2) box.y2 = rrect.y2; if (box.x1 > box.x2 || box.y1 > box.y2) continue; } /* restrict blit to size of actually rendered area */ if (box.x2 - box.x1 > srcWidth) box.x2 = srcWidth + box.x1; if (box.y2 - box.y1 > srcHeight) box.y2 = srcHeight + box.y1; DBG(SWAP, "box x1 x2 y1 y2 %d %d %d %d\n", box.x1, box.x2, box.y1, box.y2); sbox.x1 = box.x1 - dPriv->x; sbox.y1 = box.y1 - dPriv->y; assert(box.x1 < box.x2); assert(box.y1 < box.y2); /* XXX this could be done with pipe->surface_copy() */ /* XXX should have its own batch buffer */ if (!BEGIN_BATCH(8, 2)) { /* * Since we share this batch buffer with a context * we can't flush it since that risks a GPU lockup */ assert(0); continue; } OUT_BATCH(CMD); OUT_BATCH(BR13); OUT_BATCH((box.y1 << 16) | box.x1); OUT_BATCH((box.y2 << 16) | box.x2); OUT_RELOC(intelScreen->front.buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE, DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0); OUT_BATCH((sbox.y1 << 16) | sbox.x1); OUT_BATCH((srcpitch * cpp) & 0xffff); OUT_RELOC(dri_bo(surf->buffer), DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ, DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0); } if (intel->first_swap_fence) driFenceUnReference(&intel->first_swap_fence); intel->first_swap_fence = intel_be_batchbuffer_flush(intel->base.batch); } UNLOCK_HARDWARE(intel); if (intel->lastStamp != dPriv->lastStamp) { intelUpdateWindowSize(dPriv); intel->lastStamp = dPriv->lastStamp; } } /** * This will be called whenever the currently bound window is moved/resized. */ void intelUpdateWindowSize(__DRIdrawablePrivate *dPriv) { struct intel_framebuffer *intelfb = intel_framebuffer(dPriv); assert(intelfb->stfb); st_resize_framebuffer(intelfb->stfb, dPriv->w, dPriv->h); } void intelSwapBuffers(__DRIdrawablePrivate * dPriv) { struct intel_framebuffer *intel_fb = intel_framebuffer(dPriv); struct pipe_surface *back_surf; assert(intel_fb); assert(intel_fb->stfb); back_surf = st_get_framebuffer_surface(intel_fb->stfb, ST_SURFACE_BACK_LEFT); if (back_surf) { st_notify_swapbuffers(intel_fb->stfb); intelDisplaySurface(dPriv, back_surf, NULL); st_notify_swapbuffers_complete(intel_fb->stfb); } } /** * Called via glXCopySubBufferMESA() to copy a subrect of the back * buffer to the front buffer/screen. */ void intelCopySubBuffer(__DRIdrawablePrivate * dPriv, int x, int y, int w, int h) { struct intel_framebuffer *intel_fb = intel_framebuffer(dPriv); struct pipe_surface *back_surf; assert(intel_fb); assert(intel_fb->stfb); back_surf = st_get_framebuffer_surface(intel_fb->stfb, ST_SURFACE_BACK_LEFT); if (back_surf) { drm_clip_rect_t rect; rect.x1 = x; rect.y1 = y; rect.x2 = w; rect.y2 = h; st_notify_swapbuffers(intel_fb->stfb); intelDisplaySurface(dPriv, back_surf, &rect); } }