577 lines
18 KiB
C
577 lines
18 KiB
C
/**************************************************************************
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*
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* Copyright 2009, VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/*
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* Author: Keith Whitwell <keithw@vmware.com>
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* Author: Jakob Bornecrantz <wallbraker@gmail.com>
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*/
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#include "dri_screen.h"
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#include "dri_context.h"
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#include "dri_drawable.h"
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#include "pipe/p_screen.h"
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#include "util/format/u_format.h"
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#include "util/u_memory.h"
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#include "util/u_inlines.h"
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static uint32_t drifb_ID = 0;
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static bool
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dri_st_framebuffer_validate(struct st_context_iface *stctx,
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struct st_framebuffer_iface *stfbi,
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const enum st_attachment_type *statts,
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unsigned count,
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struct pipe_resource **out)
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{
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struct dri_context *ctx = (struct dri_context *)stctx->st_manager_private;
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struct dri_drawable *drawable =
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(struct dri_drawable *) stfbi->st_manager_private;
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struct dri_screen *screen = dri_screen(drawable->sPriv);
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unsigned statt_mask, new_mask;
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bool new_stamp;
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int i;
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unsigned int lastStamp;
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struct pipe_resource **textures =
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drawable->stvis.samples > 1 ? drawable->msaa_textures
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: drawable->textures;
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statt_mask = 0x0;
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for (i = 0; i < count; i++)
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statt_mask |= (1 << statts[i]);
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/* record newly allocated textures */
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new_mask = (statt_mask & ~drawable->texture_mask);
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/*
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* dPriv->dri2.stamp is the server stamp. dPriv->lastStamp is the
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* client stamp. It has the value of the server stamp when last
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* checked.
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*/
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do {
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lastStamp = drawable->dPriv->lastStamp;
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new_stamp = (drawable->texture_stamp != lastStamp);
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if (new_stamp || new_mask) {
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if (new_stamp && drawable->update_drawable_info)
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drawable->update_drawable_info(drawable);
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drawable->allocate_textures(ctx, drawable, statts, count);
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/* add existing textures */
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for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
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if (textures[i])
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statt_mask |= (1 << i);
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}
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drawable->texture_stamp = lastStamp;
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drawable->texture_mask = statt_mask;
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}
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} while (lastStamp != drawable->dPriv->lastStamp);
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/* Flush the pending set_damage_region request. */
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struct pipe_screen *pscreen = screen->base.screen;
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if (new_mask & (1 << ST_ATTACHMENT_BACK_LEFT) &&
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pscreen->set_damage_region) {
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struct pipe_resource *resource = textures[ST_ATTACHMENT_BACK_LEFT];
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pscreen->set_damage_region(pscreen, resource,
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drawable->num_damage_rects,
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drawable->damage_rects);
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}
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if (!out)
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return true;
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/* Set the window-system buffers for the gallium frontend. */
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for (i = 0; i < count; i++)
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pipe_resource_reference(&out[i], textures[statts[i]]);
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return true;
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}
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static bool
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dri_st_framebuffer_flush_front(struct st_context_iface *stctx,
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struct st_framebuffer_iface *stfbi,
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enum st_attachment_type statt)
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{
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struct dri_context *ctx = (struct dri_context *)stctx->st_manager_private;
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struct dri_drawable *drawable =
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(struct dri_drawable *) stfbi->st_manager_private;
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/* XXX remove this and just set the correct one on the framebuffer */
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return drawable->flush_frontbuffer(ctx, drawable, statt);
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}
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/**
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* The gallium frontend framebuffer interface flush_swapbuffers callback
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*/
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static bool
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dri_st_framebuffer_flush_swapbuffers(struct st_context_iface *stctx,
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struct st_framebuffer_iface *stfbi)
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{
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struct dri_context *ctx = (struct dri_context *)stctx->st_manager_private;
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struct dri_drawable *drawable =
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(struct dri_drawable *) stfbi->st_manager_private;
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if (drawable->flush_swapbuffers)
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drawable->flush_swapbuffers(ctx, drawable);
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return true;
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}
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/**
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* This is called when we need to set up GL rendering to a new X window.
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*/
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bool
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dri_create_buffer(__DRIscreen * sPriv,
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__DRIdrawable * dPriv,
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const struct gl_config * visual, bool isPixmap)
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{
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struct dri_screen *screen = sPriv->driverPrivate;
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struct dri_drawable *drawable = NULL;
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if (isPixmap)
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goto fail; /* not implemented */
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drawable = CALLOC_STRUCT(dri_drawable);
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if (drawable == NULL)
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goto fail;
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dri_fill_st_visual(&drawable->stvis, screen, visual);
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/* setup the st_framebuffer_iface */
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drawable->base.visual = &drawable->stvis;
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drawable->base.flush_front = dri_st_framebuffer_flush_front;
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drawable->base.validate = dri_st_framebuffer_validate;
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drawable->base.flush_swapbuffers = dri_st_framebuffer_flush_swapbuffers;
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drawable->base.st_manager_private = (void *) drawable;
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drawable->screen = screen;
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drawable->sPriv = sPriv;
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drawable->dPriv = dPriv;
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dPriv->driverPrivate = (void *)drawable;
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p_atomic_set(&drawable->base.stamp, 1);
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drawable->base.ID = p_atomic_inc_return(&drifb_ID);
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drawable->base.state_manager = &screen->base;
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return true;
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fail:
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FREE(drawable);
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return false;
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}
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void
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dri_destroy_buffer(__DRIdrawable * dPriv)
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{
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struct dri_drawable *drawable = dri_drawable(dPriv);
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struct dri_screen *screen = drawable->screen;
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struct st_api *stapi = screen->st_api;
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int i;
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for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
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pipe_resource_reference(&drawable->textures[i], NULL);
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for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
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pipe_resource_reference(&drawable->msaa_textures[i], NULL);
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screen->base.screen->fence_reference(screen->base.screen,
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&drawable->throttle_fence, NULL);
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/* Notify the st manager that this drawable is no longer valid */
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stapi->destroy_drawable(stapi, &drawable->base);
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FREE(drawable->damage_rects);
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FREE(drawable);
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}
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/**
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* Validate the texture at an attachment. Allocate the texture if it does not
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* exist. Used by the TFP extension.
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*/
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static void
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dri_drawable_validate_att(struct dri_context *ctx,
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struct dri_drawable *drawable,
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enum st_attachment_type statt)
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{
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enum st_attachment_type statts[ST_ATTACHMENT_COUNT];
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unsigned i, count = 0;
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/* check if buffer already exists */
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if (drawable->texture_mask & (1 << statt))
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return;
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/* make sure DRI2 does not destroy existing buffers */
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for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
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if (drawable->texture_mask & (1 << i)) {
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statts[count++] = i;
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}
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}
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statts[count++] = statt;
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drawable->texture_stamp = drawable->dPriv->lastStamp - 1;
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drawable->base.validate(ctx->st, &drawable->base, statts, count, NULL);
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}
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/**
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* These are used for GLX_EXT_texture_from_pixmap
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*/
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static void
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dri_set_tex_buffer2(__DRIcontext *pDRICtx, GLint target,
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GLint format, __DRIdrawable *dPriv)
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{
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struct dri_context *ctx = dri_context(pDRICtx);
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struct st_context_iface *st = ctx->st;
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struct dri_drawable *drawable = dri_drawable(dPriv);
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struct pipe_resource *pt;
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if (st->thread_finish)
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st->thread_finish(st);
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dri_drawable_validate_att(ctx, drawable, ST_ATTACHMENT_FRONT_LEFT);
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/* Use the pipe resource associated with the X drawable */
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pt = drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
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if (pt) {
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enum pipe_format internal_format = pt->format;
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if (format == __DRI_TEXTURE_FORMAT_RGB) {
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/* only need to cover the formats recognized by dri_fill_st_visual */
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switch (internal_format) {
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case PIPE_FORMAT_R16G16B16A16_FLOAT:
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internal_format = PIPE_FORMAT_R16G16B16X16_FLOAT;
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break;
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case PIPE_FORMAT_B10G10R10A2_UNORM:
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internal_format = PIPE_FORMAT_B10G10R10X2_UNORM;
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break;
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case PIPE_FORMAT_R10G10B10A2_UNORM:
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internal_format = PIPE_FORMAT_R10G10B10X2_UNORM;
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break;
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case PIPE_FORMAT_BGRA8888_UNORM:
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internal_format = PIPE_FORMAT_BGRX8888_UNORM;
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break;
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case PIPE_FORMAT_ARGB8888_UNORM:
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internal_format = PIPE_FORMAT_XRGB8888_UNORM;
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break;
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default:
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break;
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}
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}
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drawable->update_tex_buffer(drawable, ctx, pt);
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ctx->st->teximage(ctx->st,
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(target == GL_TEXTURE_2D) ? ST_TEXTURE_2D : ST_TEXTURE_RECT,
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0, internal_format, pt, false);
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}
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}
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static void
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dri_set_tex_buffer(__DRIcontext *pDRICtx, GLint target,
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__DRIdrawable *dPriv)
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{
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dri_set_tex_buffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
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}
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const __DRItexBufferExtension driTexBufferExtension = {
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.base = { __DRI_TEX_BUFFER, 2 },
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.setTexBuffer = dri_set_tex_buffer,
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.setTexBuffer2 = dri_set_tex_buffer2,
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.releaseTexBuffer = NULL,
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};
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/**
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* Get the format and binding of an attachment.
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*/
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void
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dri_drawable_get_format(struct dri_drawable *drawable,
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enum st_attachment_type statt,
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enum pipe_format *format,
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unsigned *bind)
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{
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switch (statt) {
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case ST_ATTACHMENT_FRONT_LEFT:
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case ST_ATTACHMENT_BACK_LEFT:
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case ST_ATTACHMENT_FRONT_RIGHT:
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case ST_ATTACHMENT_BACK_RIGHT:
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/* Other pieces of the driver stack get confused and behave incorrectly
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* when they get an sRGB drawable. st/mesa receives "drawable->stvis"
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* though other means and handles it correctly, so we don't really need
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* to use an sRGB format here.
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*/
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*format = util_format_linear(drawable->stvis.color_format);
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*bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
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break;
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case ST_ATTACHMENT_DEPTH_STENCIL:
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*format = drawable->stvis.depth_stencil_format;
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*bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
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break;
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default:
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*format = PIPE_FORMAT_NONE;
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*bind = 0;
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break;
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}
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}
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void
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dri_pipe_blit(struct pipe_context *pipe,
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struct pipe_resource *dst,
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struct pipe_resource *src)
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{
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struct pipe_blit_info blit;
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if (!dst || !src)
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return;
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/* From the GL spec, version 4.2, section 4.1.11 (Additional Multisample
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* Fragment Operations):
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*
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* If a framebuffer object is not bound, after all operations have
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* been completed on the multisample buffer, the sample values for
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* each color in the multisample buffer are combined to produce a
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* single color value, and that value is written into the
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* corresponding color buffers selected by DrawBuffer or
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* DrawBuffers. An implementation may defer the writing of the color
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* buffers until a later time, but the state of the framebuffer must
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* behave as if the color buffers were updated as each fragment was
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* processed. The method of combination is not specified. If the
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* framebuffer contains sRGB values, then it is recommended that the
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* an average of sample values is computed in a linearized space, as
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* for blending (see section 4.1.7).
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*
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* In other words, to do a resolve operation in a linear space, we have
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* to set sRGB formats if the original resources were sRGB, so don't use
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* util_format_linear.
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*/
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memset(&blit, 0, sizeof(blit));
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blit.dst.resource = dst;
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blit.dst.box.width = dst->width0;
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blit.dst.box.height = dst->height0;
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blit.dst.box.depth = 1;
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blit.dst.format = dst->format;
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blit.src.resource = src;
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blit.src.box.width = src->width0;
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blit.src.box.height = src->height0;
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blit.src.box.depth = 1;
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blit.src.format = src->format;
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blit.mask = PIPE_MASK_RGBA;
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blit.filter = PIPE_TEX_FILTER_NEAREST;
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pipe->blit(pipe, &blit);
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}
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static void
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dri_postprocessing(struct dri_context *ctx,
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struct dri_drawable *drawable,
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enum st_attachment_type att)
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{
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struct pipe_resource *src = drawable->textures[att];
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struct pipe_resource *zsbuf = drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL];
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if (ctx->pp && src)
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pp_run(ctx->pp, src, src, zsbuf);
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}
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struct notify_before_flush_cb_args {
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struct dri_context *ctx;
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struct dri_drawable *drawable;
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unsigned flags;
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enum __DRI2throttleReason reason;
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bool swap_msaa_buffers;
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};
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static void
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notify_before_flush_cb(void* _args)
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{
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struct notify_before_flush_cb_args *args = (struct notify_before_flush_cb_args *) _args;
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struct st_context_iface *st = args->ctx->st;
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struct pipe_context *pipe = st->pipe;
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if (args->drawable->stvis.samples > 1 &&
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(args->reason == __DRI2_THROTTLE_SWAPBUFFER ||
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args->reason == __DRI2_THROTTLE_COPYSUBBUFFER)) {
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/* Resolve the MSAA back buffer. */
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dri_pipe_blit(st->pipe,
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args->drawable->textures[ST_ATTACHMENT_BACK_LEFT],
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args->drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]);
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if (args->reason == __DRI2_THROTTLE_SWAPBUFFER &&
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args->drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT] &&
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args->drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]) {
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args->swap_msaa_buffers = true;
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}
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/* FRONT_LEFT is resolved in drawable->flush_frontbuffer. */
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}
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dri_postprocessing(args->ctx, args->drawable, ST_ATTACHMENT_BACK_LEFT);
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if (pipe->invalidate_resource &&
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(args->flags & __DRI2_FLUSH_INVALIDATE_ANCILLARY)) {
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if (args->drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL])
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pipe->invalidate_resource(pipe, args->drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
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if (args->drawable->msaa_textures[ST_ATTACHMENT_DEPTH_STENCIL])
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pipe->invalidate_resource(pipe, args->drawable->msaa_textures[ST_ATTACHMENT_DEPTH_STENCIL]);
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}
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if (args->ctx->hud) {
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hud_run(args->ctx->hud, args->ctx->st->cso_context,
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args->drawable->textures[ST_ATTACHMENT_BACK_LEFT]);
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}
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pipe->flush_resource(pipe, args->drawable->textures[ST_ATTACHMENT_BACK_LEFT]);
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}
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/**
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* DRI2 flush extension, the flush_with_flags function.
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*
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* \param context the context
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* \param drawable the drawable to flush
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* \param flags a combination of _DRI2_FLUSH_xxx flags
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* \param throttle_reason the reason for throttling, 0 = no throttling
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*/
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void
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dri_flush(__DRIcontext *cPriv,
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__DRIdrawable *dPriv,
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unsigned flags,
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enum __DRI2throttleReason reason)
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{
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struct dri_context *ctx = dri_context(cPriv);
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struct dri_drawable *drawable = dri_drawable(dPriv);
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struct st_context_iface *st;
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unsigned flush_flags;
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struct notify_before_flush_cb_args args = { 0 };
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if (!ctx) {
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assert(0);
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return;
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}
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st = ctx->st;
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if (st->thread_finish)
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st->thread_finish(st);
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if (drawable) {
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/* prevent recursion */
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if (drawable->flushing)
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return;
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drawable->flushing = true;
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}
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else {
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flags &= ~__DRI2_FLUSH_DRAWABLE;
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}
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if ((flags & __DRI2_FLUSH_DRAWABLE) &&
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drawable->textures[ST_ATTACHMENT_BACK_LEFT]) {
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/* We can't do operations on the back buffer here, because there
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* may be some pending operations that will get flushed by the
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* call to st->flush (eg: FLUSH_VERTICES).
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* Instead we register a callback to be notified when all operations
|
|
* have been submitted but before the call to st_flush.
|
|
*/
|
|
args.ctx = ctx;
|
|
args.drawable = drawable;
|
|
args.flags = flags;
|
|
args.reason = reason;
|
|
}
|
|
|
|
flush_flags = 0;
|
|
if (flags & __DRI2_FLUSH_CONTEXT)
|
|
flush_flags |= ST_FLUSH_FRONT;
|
|
if (reason == __DRI2_THROTTLE_SWAPBUFFER)
|
|
flush_flags |= ST_FLUSH_END_OF_FRAME;
|
|
|
|
/* Flush the context and throttle if needed. */
|
|
if (dri_screen(ctx->sPriv)->throttle &&
|
|
drawable &&
|
|
(reason == __DRI2_THROTTLE_SWAPBUFFER ||
|
|
reason == __DRI2_THROTTLE_FLUSHFRONT)) {
|
|
|
|
struct pipe_screen *screen = drawable->screen->base.screen;
|
|
struct pipe_fence_handle *new_fence = NULL;
|
|
|
|
st->flush(st, flush_flags, &new_fence, args.ctx ? notify_before_flush_cb : NULL, &args);
|
|
|
|
/* throttle on the previous fence */
|
|
if (drawable->throttle_fence) {
|
|
screen->fence_finish(screen, NULL, drawable->throttle_fence, PIPE_TIMEOUT_INFINITE);
|
|
screen->fence_reference(screen, &drawable->throttle_fence, NULL);
|
|
}
|
|
drawable->throttle_fence = new_fence;
|
|
}
|
|
else if (flags & (__DRI2_FLUSH_DRAWABLE | __DRI2_FLUSH_CONTEXT)) {
|
|
st->flush(st, flush_flags, NULL, args.ctx ? notify_before_flush_cb : NULL, &args);
|
|
}
|
|
|
|
if (drawable) {
|
|
drawable->flushing = false;
|
|
}
|
|
|
|
/* Swap the MSAA front and back buffers, so that reading
|
|
* from the front buffer after SwapBuffers returns what was
|
|
* in the back buffer.
|
|
*/
|
|
if (args.swap_msaa_buffers) {
|
|
struct pipe_resource *tmp =
|
|
drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT];
|
|
|
|
drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT] =
|
|
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT];
|
|
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT] = tmp;
|
|
|
|
/* Now that we have swapped the buffers, this tells the gallium
|
|
* frontend to revalidate the framebuffer.
|
|
*/
|
|
p_atomic_inc(&drawable->base.stamp);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* dri_throttle - A DRI2ThrottleExtension throttling function.
|
|
*/
|
|
static void
|
|
dri_throttle(__DRIcontext *cPriv, __DRIdrawable *dPriv,
|
|
enum __DRI2throttleReason reason)
|
|
{
|
|
dri_flush(cPriv, dPriv, 0, reason);
|
|
}
|
|
|
|
|
|
const __DRI2throttleExtension dri2ThrottleExtension = {
|
|
.base = { __DRI2_THROTTLE, 1 },
|
|
|
|
.throttle = dri_throttle,
|
|
};
|
|
|
|
|
|
/* vim: set sw=3 ts=8 sts=3 expandtab: */
|