/************************************************************************** * * 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_batchbuffer.h" #include "intel_reg.h" #include "context.h" #include "utils.h" #include "drirenderbuffer.h" #include "vblank.h" #include "pipe/p_context.h" #include "state_tracker/st_cb_fbo.h" /* This block can be removed when libdrm >= 2.3.1 is required */ #ifndef DRM_VBLANK_FLIP #define DRM_VBLANK_FLIP 0x8000000 typedef struct drm_i915_flip { int pipes; } drm_i915_flip_t; #undef DRM_IOCTL_I915_FLIP #define DRM_IOCTL_I915_FLIP DRM_IOW(DRM_COMMAND_BASE + DRM_I915_FLIP, \ drm_i915_flip_t) #endif /** * Copy the back color buffer to the front color buffer. * Used for SwapBuffers(). */ void intelCopyBuffer(__DRIdrawablePrivate * dPriv, const drm_clip_rect_t * rect) { struct intel_context *intel; const intelScreenPrivate *intelScreen; DBG(SWAP, "%s\n", __FUNCTION__); assert(dPriv); intel = intelScreenContext(dPriv->driScreenPriv->private); if (!intel) return; intelScreen = intel->intelScreen; if (intel->last_swap_fence) { driFenceFinish(intel->last_swap_fence, DRM_FENCE_TYPE_EXE, GL_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 ((struct intel_context *)dPriv->driContextPriv->driverPrivate != intel) DRI_VALIDATE_DRAWABLE_INFO(intel->driScreen, dPriv); if (dPriv && dPriv->numClipRects) { struct intel_framebuffer *intel_fb = dPriv->driverPrivate; #if 0 const struct pipe_region *backRegion = intel_fb->Base._ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT ? intel_get_rb_region(&intel_fb->Base, BUFFER_FRONT_LEFT) : intel_get_rb_region(&intel_fb->Base, BUFFER_BACK_LEFT); #endif const int backWidth = intel_fb->Base.Width; const int backHeight = intel_fb->Base.Height; const int nbox = dPriv->numClipRects; const drm_clip_rect_t *pbox = dPriv->pClipRects; const int pitch = intelScreen->front.pitch / intelScreen->front.cpp; #if 0 const int srcpitch = backRegion->pitch; #endif const int cpp = intelScreen->front.cpp; int BR13, CMD; int i; const struct pipe_surface *backSurf; const struct pipe_region *backRegion; int srcpitch; struct st_renderbuffer *strb; /* blit from back color buffer if it exists, else front buffer */ strb = st_renderbuffer(intel_fb->Base.Attachment[BUFFER_BACK_LEFT].Renderbuffer); if (strb) { backSurf = strb->surface; } else { strb = st_renderbuffer(intel_fb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer); backSurf = strb->surface; } backRegion = backSurf->region; srcpitch = backRegion->pitch; ASSERT(intel_fb); ASSERT(intel_fb->Base.Name == 0); /* Not a user-created FBO */ ASSERT(backRegion); ASSERT(backRegion->cpp == cpp); DBG(SWAP, "front pitch %d back pitch %d\n", pitch, backRegion->pitch); 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) continue; box = *pbox; if (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 > backWidth) box.x2 = backWidth + box.x1; if (box.y2 - box.y1 > backHeight) box.y2 = backHeight + 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; BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS); 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(backRegion->buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ, DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0); ADVANCE_BATCH(); } if (intel->first_swap_fence) driFenceUnReference(intel->first_swap_fence); intel->first_swap_fence = intel_batchbuffer_flush(intel->batch); driFenceReference(intel->first_swap_fence); } UNLOCK_HARDWARE(intel); /* XXX this is bogus. The context here may not even be bound to this drawable! */ if (intel->lastStamp != dPriv->lastStamp) { GET_CURRENT_CONTEXT(currctx); struct intel_context *intelcurrent = intel_context(currctx); if (intelcurrent == intel && intelcurrent->driDrawable == dPriv) { intelWindowMoved(intel); intel->lastStamp = dPriv->lastStamp; } } } /** * This will be called whenever the currently bound window is moved/resized. * XXX: actually, it seems to NOT be called when the window is only moved (BP). */ void intelWindowMoved(struct intel_context *intel) { GLcontext *ctx = &intel->ctx; __DRIdrawablePrivate *dPriv = intel->driDrawable; struct intel_framebuffer *intel_fb = dPriv->driverPrivate; if (!intel->ctx.DrawBuffer) { /* when would this happen? -BP */ assert(0); intel->numClipRects = 0; } /* Update Mesa's notion of window size */ driUpdateFramebufferSize(ctx, dPriv); intel_fb->Base.Initialized = GL_TRUE; /* XXX remove someday */ { drmI830Sarea *sarea = intel->sarea; drm_clip_rect_t drw_rect = { .x1 = dPriv->x, .x2 = dPriv->x + dPriv->w, .y1 = dPriv->y, .y2 = dPriv->y + dPriv->h }; drm_clip_rect_t pipeA_rect = { .x1 = sarea->pipeA_x, .y1 = sarea->pipeA_y, .x2 = sarea->pipeA_x + sarea->pipeA_w, .y2 = sarea->pipeA_y + sarea->pipeA_h }; drm_clip_rect_t pipeB_rect = { .x1 = sarea->pipeB_x, .y1 = sarea->pipeB_y, .x2 = sarea->pipeB_x + sarea->pipeB_w, .y2 = sarea->pipeB_y + sarea->pipeB_h }; GLint areaA = driIntersectArea( drw_rect, pipeA_rect ); GLint areaB = driIntersectArea( drw_rect, pipeB_rect ); GLuint flags = intel_fb->vblank_flags; GLboolean pf_active; GLint pf_planes; /* Update page flipping info */ pf_planes = 0; if (areaA > 0) pf_planes |= 1; if (areaB > 0) pf_planes |= 2; intel_fb->pf_current_page = (intel->sarea->pf_current_page >> (intel_fb->pf_planes & 0x2)) & 0x3; intel_fb->pf_num_pages = 2 /*intel->intelScreen->third.handle ? 3 : 2*/; pf_active = pf_planes && (pf_planes & intel->sarea->pf_active) == pf_planes; if (pf_active != intel_fb->pf_active) DBG(LOCK, "%s - Page flipping %sactive\n", __progname, pf_active ? "" : "in"); if (pf_active) { /* Sync pages between planes if we're flipping on both at the same time */ if (pf_planes == 0x3 && pf_planes != intel_fb->pf_planes && (intel->sarea->pf_current_page & 0x3) != (((intel->sarea->pf_current_page) >> 2) & 0x3)) { drm_i915_flip_t flip; if (intel_fb->pf_current_page == (intel->sarea->pf_current_page & 0x3)) { /* XXX: This is ugly, but emitting two flips 'in a row' can cause * lockups for unknown reasons. */ intel->sarea->pf_current_page = intel->sarea->pf_current_page & 0x3; intel->sarea->pf_current_page |= ((intel_fb->pf_current_page + intel_fb->pf_num_pages - 1) % intel_fb->pf_num_pages) << 2; flip.pipes = 0x2; } else { intel->sarea->pf_current_page = intel->sarea->pf_current_page & (0x3 << 2); intel->sarea->pf_current_page |= (intel_fb->pf_current_page + intel_fb->pf_num_pages - 1) % intel_fb->pf_num_pages; flip.pipes = 0x1; } drmCommandWrite(intel->driFd, DRM_I915_FLIP, &flip, sizeof(flip)); } intel_fb->pf_planes = pf_planes; } intel_fb->pf_active = pf_active; #if 0 intel_flip_renderbuffers(intel_fb); intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer); #endif /* Update vblank info */ if (areaB > areaA || (areaA == areaB && areaB > 0)) { flags = intel_fb->vblank_flags | VBLANK_FLAG_SECONDARY; } else { flags = intel_fb->vblank_flags & ~VBLANK_FLAG_SECONDARY; } if (flags != intel_fb->vblank_flags && intel_fb->vblank_flags && !(intel_fb->vblank_flags & VBLANK_FLAG_NO_IRQ)) { drmVBlank vbl; int i; vbl.request.type = DRM_VBLANK_ABSOLUTE; if ( intel_fb->vblank_flags & VBLANK_FLAG_SECONDARY ) { vbl.request.type |= DRM_VBLANK_SECONDARY; } for (i = 0; i < intel_fb->pf_num_pages; i++) { if ((intel_fb->vbl_waited - intel_fb->vbl_pending[i]) <= (1<<23)) continue; vbl.request.sequence = intel_fb->vbl_pending[i]; drmWaitVBlank(intel->driFd, &vbl); } intel_fb->vblank_flags = flags; driGetCurrentVBlank(dPriv, intel_fb->vblank_flags, &intel_fb->vbl_seq); intel_fb->vbl_waited = intel_fb->vbl_seq; for (i = 0; i < intel_fb->pf_num_pages; i++) { intel_fb->vbl_pending[i] = intel_fb->vbl_waited; } } } /* This will be picked up by looking at the dirty state flags: */ /* Update hardware scissor */ // ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y, // ctx->Scissor.Width, ctx->Scissor.Height); /* Re-calculate viewport related state */ // ctx->Driver.DepthRange( ctx, ctx->Viewport.Near, ctx->Viewport.Far ); } /* Emit wait for pending flips */ #if 0 void intel_wait_flips(struct intel_context *intel, GLuint batch_flags) { struct intel_framebuffer *intel_fb = (struct intel_framebuffer *) intel->ctx.DrawBuffer; struct intel_renderbuffer *intel_rb = intel_get_renderbuffer(&intel_fb->Base, intel_fb->Base._ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT ? BUFFER_FRONT_LEFT : BUFFER_BACK_LEFT); if (intel_fb->Base.Name == 0 && intel_rb->pf_pending == intel_fb->pf_seq) { GLint pf_planes = intel_fb->pf_planes; BATCH_LOCALS; /* Wait for pending flips to take effect */ BEGIN_BATCH(2, batch_flags); OUT_BATCH(pf_planes & 0x1 ? (MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP) : 0); OUT_BATCH(pf_planes & 0x2 ? (MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_B_FLIP) : 0); ADVANCE_BATCH(); intel_rb->pf_pending--; } } #endif #if 0 /* Flip the front & back buffers */ static GLboolean intelPageFlip(const __DRIdrawablePrivate * dPriv) { struct intel_context *intel; int ret; struct intel_framebuffer *intel_fb = dPriv->driverPrivate; DBG(SWAP, "%s\n", __FUNCTION__); assert(dPriv); assert(dPriv->driContextPriv); assert(dPriv->driContextPriv->driverPrivate); intel = (struct intel_context *) dPriv->driContextPriv->driverPrivate; if (intel->intelScreen->drmMinor < 9) return GL_FALSE; intelFlush(&intel->ctx); ret = 0; LOCK_HARDWARE(intel); if (dPriv->numClipRects && intel_fb->pf_active) { drm_i915_flip_t flip; flip.pipes = intel_fb->pf_planes; ret = drmCommandWrite(intel->driFd, DRM_I915_FLIP, &flip, sizeof(flip)); } UNLOCK_HARDWARE(intel); if (ret || !intel_fb->pf_active) return GL_FALSE; if (!dPriv->numClipRects) { usleep(10000); /* throttle invisible client 10ms */ } intel_fb->pf_current_page = (intel->sarea->pf_current_page >> (intel_fb->pf_planes & 0x2)) & 0x3; if (dPriv->numClipRects != 0) { intel_get_renderbuffer(&intel_fb->Base, BUFFER_FRONT_LEFT)->pf_pending = intel_get_renderbuffer(&intel_fb->Base, BUFFER_BACK_LEFT)->pf_pending = ++intel_fb->pf_seq; } #if 0 intel_flip_renderbuffers(intel_fb); intel_draw_buffer(&intel->ctx, &intel_fb->Base); #endif DBG(SWAP, "%s: success\n", __FUNCTION__); return GL_TRUE; } #endif static GLboolean intelScheduleSwap(const __DRIdrawablePrivate * dPriv, GLboolean *missed_target) { struct intel_framebuffer *intel_fb = dPriv->driverPrivate; unsigned int interval = driGetVBlankInterval(dPriv, intel_fb->vblank_flags); struct intel_context *intel = intelScreenContext(dPriv->driScreenPriv->private); const intelScreenPrivate *intelScreen = intel->intelScreen; unsigned int target; drm_i915_vblank_swap_t swap; GLboolean ret; /* XXX: Scheduled buffer swaps don't work with private back buffers yet */ if (1 || !intel_fb->vblank_flags || (intel_fb->vblank_flags & VBLANK_FLAG_NO_IRQ) || intelScreen->drmMinor < (intel_fb->pf_active ? 9 : 6)) return GL_FALSE; swap.seqtype = DRM_VBLANK_ABSOLUTE; if (intel_fb->vblank_flags & VBLANK_FLAG_SYNC) { swap.seqtype |= DRM_VBLANK_NEXTONMISS; } else if (interval == 0) { return GL_FALSE; } swap.drawable = dPriv->hHWDrawable; target = swap.sequence = intel_fb->vbl_seq + interval; if ( intel_fb->vblank_flags & VBLANK_FLAG_SECONDARY ) { swap.seqtype |= DRM_VBLANK_SECONDARY; } LOCK_HARDWARE(intel); intel_batchbuffer_flush(intel->batch); if ( intel_fb->pf_active ) { swap.seqtype |= DRM_VBLANK_FLIP; intel_fb->pf_current_page = (((intel->sarea->pf_current_page >> (intel_fb->pf_planes & 0x2)) & 0x3) + 1) % intel_fb->pf_num_pages; } if (!drmCommandWriteRead(intel->driFd, DRM_I915_VBLANK_SWAP, &swap, sizeof(swap))) { intel_fb->vbl_seq = swap.sequence; swap.sequence -= target; *missed_target = swap.sequence > 0 && swap.sequence <= (1 << 23); #if 1 intel_fb->vbl_pending[1] = intel_fb->vbl_pending[0] = intel_fb->vbl_seq; #else intel_get_renderbuffer(&intel_fb->Base, BUFFER_BACK_LEFT)->vbl_pending = intel_get_renderbuffer(&intel_fb->Base, BUFFER_FRONT_LEFT)->vbl_pending = intel_fb->vbl_seq; #endif if (swap.seqtype & DRM_VBLANK_FLIP) { #if 0 intel_flip_renderbuffers(intel_fb); intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer); #endif } ret = GL_TRUE; } else { if (swap.seqtype & DRM_VBLANK_FLIP) { intel_fb->pf_current_page = ((intel->sarea->pf_current_page >> (intel_fb->pf_planes & 0x2)) & 0x3) % intel_fb->pf_num_pages; } ret = GL_FALSE; } UNLOCK_HARDWARE(intel); return ret; } void intelSwapBuffers(__DRIdrawablePrivate * dPriv) { if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { GET_CURRENT_CONTEXT(ctx); struct intel_context *intel; if (ctx == NULL) return; intel = intel_context(ctx); if (ctx->Visual.doubleBufferMode) { GLboolean missed_target; struct intel_framebuffer *intel_fb = dPriv->driverPrivate; int64_t ust; _mesa_notifySwapBuffers(ctx); /* flush pending rendering comands */ if (!intelScheduleSwap(dPriv, &missed_target)) { driWaitForVBlank(dPriv, &intel_fb->vbl_seq, intel_fb->vblank_flags, &missed_target); intelCopyBuffer(dPriv, NULL); } intel_fb->swap_count++; (*dri_interface->getUST) (&ust); if (missed_target) { intel_fb->swap_missed_count++; intel_fb->swap_missed_ust = ust - intel_fb->swap_ust; } intel_fb->swap_ust = ust; } } else { /* XXX this shouldn't be an error but we can't handle it for now */ fprintf(stderr, "%s: drawable has no context!\n", __FUNCTION__); } } void intelCopySubBuffer(__DRIdrawablePrivate * dPriv, int x, int y, int w, int h) { if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { struct intel_context *intel = (struct intel_context *) dPriv->driContextPriv->driverPrivate; GLcontext *ctx = &intel->ctx; if (ctx->Visual.doubleBufferMode) { drm_clip_rect_t rect; /* fixup cliprect (driDrawable may have changed?) later */ rect.x1 = x; rect.y1 = y; rect.x2 = w; rect.y2 = h; _mesa_notifySwapBuffers(ctx); /* flush pending rendering comands */ intelCopyBuffer(dPriv, &rect); } } else { /* XXX this shouldn't be an error but we can't handle it for now */ fprintf(stderr, "%s: drawable has no context!\n", __FUNCTION__); } }