566 lines
17 KiB
C
566 lines
17 KiB
C
/*
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* Copyright © 2009 Intel Corporation
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* Copyright © 1998 Keith Packard
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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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Zhigang Gong <zhigang.gong@gmail.com>
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*
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*/
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#include <stdlib.h>
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#include "glamor_priv.h"
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#define GLAMOR_CACHE_EXPIRE_MAX 100
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#define GLAMOR_CACHE_DEFAULT 0
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#define GLAMOR_CACHE_EXACT_SIZE 1
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//#define NO_FBO_CACHE 1
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#define FBO_CACHE_THRESHOLD (256*1024*1024)
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/* Loop from the tail to the head. */
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#define xorg_list_for_each_entry_reverse(pos, head, member) \
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for (pos = __container_of((head)->prev, pos, member); \
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&pos->member != (head); \
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pos = __container_of(pos->member.prev, pos, member))
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#define xorg_list_for_each_entry_safe_reverse(pos, tmp, head, member) \
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for (pos = __container_of((head)->prev, pos, member), \
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tmp = __container_of(pos->member.prev, pos, member); \
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&pos->member != (head); \
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pos = tmp, tmp = __container_of(pos->member.prev, tmp, member))
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inline static int
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cache_wbucket(int size)
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{
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int order = __fls(size / 32);
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if (order >= CACHE_BUCKET_WCOUNT)
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order = CACHE_BUCKET_WCOUNT - 1;
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return order;
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}
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inline static int
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cache_hbucket(int size)
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{
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int order = __fls(size / 32);
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if (order >= CACHE_BUCKET_HCOUNT)
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order = CACHE_BUCKET_HCOUNT - 1;
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return order;
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}
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static int
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cache_format(GLenum format)
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{
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switch (format) {
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case GL_ALPHA:
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case GL_LUMINANCE:
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case GL_RED:
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return 2;
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case GL_RGB:
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return 1;
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case GL_RGBA:
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return 0;
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default:
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return -1;
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}
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}
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static glamor_pixmap_fbo *
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glamor_pixmap_fbo_cache_get(glamor_screen_private *glamor_priv,
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int w, int h, GLenum format)
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{
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struct xorg_list *cache;
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glamor_pixmap_fbo *fbo_entry, *ret_fbo = NULL;
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int n_format;
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#ifdef NO_FBO_CACHE
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return NULL;
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#else
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n_format = cache_format(format);
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if (n_format == -1)
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return NULL;
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cache = &glamor_priv->fbo_cache[n_format]
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[cache_wbucket(w)]
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[cache_hbucket(h)];
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xorg_list_for_each_entry(fbo_entry, cache, list) {
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if (fbo_entry->width == w && fbo_entry->height == h) {
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DEBUGF("Request w %d h %d format %x \n", w, h, format);
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DEBUGF("got cache entry %p w %d h %d fbo %d tex %d format %x\n",
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fbo_entry, fbo_entry->width, fbo_entry->height,
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fbo_entry->fb, fbo_entry->tex, fbo_entry->format);
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assert(format == fbo_entry->format);
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xorg_list_del(&fbo_entry->list);
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ret_fbo = fbo_entry;
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break;
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}
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}
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if (ret_fbo)
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glamor_priv->fbo_cache_watermark -= ret_fbo->width * ret_fbo->height;
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assert(glamor_priv->fbo_cache_watermark >= 0);
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return ret_fbo;
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#endif
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}
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static void
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glamor_purge_fbo(glamor_screen_private *glamor_priv,
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glamor_pixmap_fbo *fbo)
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{
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glamor_make_current(glamor_priv);
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if (fbo->fb)
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glDeleteFramebuffers(1, &fbo->fb);
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if (fbo->tex)
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glDeleteTextures(1, &fbo->tex);
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free(fbo);
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}
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static void
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glamor_pixmap_fbo_cache_put(glamor_screen_private *glamor_priv,
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glamor_pixmap_fbo *fbo)
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{
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struct xorg_list *cache;
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int n_format;
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#ifdef NO_FBO_CACHE
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glamor_purge_fbo(fbo);
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return;
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#else
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n_format = cache_format(fbo->format);
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if (fbo->fb == 0 || fbo->external || n_format == -1
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|| glamor_priv->fbo_cache_watermark >= FBO_CACHE_THRESHOLD) {
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glamor_priv->tick += GLAMOR_CACHE_EXPIRE_MAX;
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glamor_fbo_expire(glamor_priv);
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glamor_purge_fbo(glamor_priv, fbo);
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return;
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}
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cache = &glamor_priv->fbo_cache[n_format]
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[cache_wbucket(fbo->width)]
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[cache_hbucket(fbo->height)];
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DEBUGF
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("Put cache entry %p to cache %p w %d h %d format %x fbo %d tex %d \n",
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fbo, cache, fbo->width, fbo->height, fbo->format, fbo->fb, fbo->tex);
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glamor_priv->fbo_cache_watermark += fbo->width * fbo->height;
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xorg_list_add(&fbo->list, cache);
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fbo->expire = glamor_priv->tick + GLAMOR_CACHE_EXPIRE_MAX;
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#endif
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}
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static int
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glamor_pixmap_ensure_fb(glamor_screen_private *glamor_priv,
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glamor_pixmap_fbo *fbo)
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{
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int status, err = 0;
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glamor_make_current(glamor_priv);
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if (fbo->fb == 0)
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glGenFramebuffers(1, &fbo->fb);
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assert(fbo->tex != 0);
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glBindFramebuffer(GL_FRAMEBUFFER, fbo->fb);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
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GL_TEXTURE_2D, fbo->tex, 0);
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status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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if (status != GL_FRAMEBUFFER_COMPLETE) {
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const char *str;
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switch (status) {
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case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
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str = "incomplete attachment";
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break;
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case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
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str = "incomplete/missing attachment";
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break;
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case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER:
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str = "incomplete draw buffer";
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break;
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case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER:
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str = "incomplete read buffer";
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break;
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case GL_FRAMEBUFFER_UNSUPPORTED:
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str = "unsupported";
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break;
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case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE:
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str = "incomplete multiple";
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break;
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default:
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str = "unknown error";
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break;
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}
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glamor_fallback("glamor: Failed to create fbo, %s\n", str);
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err = -1;
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}
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return err;
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}
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glamor_pixmap_fbo *
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glamor_create_fbo_from_tex(glamor_screen_private *glamor_priv,
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int w, int h, GLenum format, GLint tex, int flag)
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{
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glamor_pixmap_fbo *fbo;
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fbo = calloc(1, sizeof(*fbo));
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if (fbo == NULL)
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return NULL;
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xorg_list_init(&fbo->list);
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fbo->tex = tex;
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fbo->width = w;
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fbo->height = h;
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fbo->external = FALSE;
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fbo->format = format;
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if (flag == CREATE_PIXMAP_USAGE_SHARED)
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fbo->external = TRUE;
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if (flag != GLAMOR_CREATE_FBO_NO_FBO) {
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if (glamor_pixmap_ensure_fb(glamor_priv, fbo) != 0) {
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glamor_purge_fbo(glamor_priv, fbo);
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fbo = NULL;
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}
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}
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return fbo;
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}
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void
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glamor_fbo_expire(glamor_screen_private *glamor_priv)
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{
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struct xorg_list *cache;
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glamor_pixmap_fbo *fbo_entry, *tmp;
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int i, j, k;
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for (i = 0; i < CACHE_FORMAT_COUNT; i++)
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for (j = 0; j < CACHE_BUCKET_WCOUNT; j++)
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for (k = 0; k < CACHE_BUCKET_HCOUNT; k++) {
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cache = &glamor_priv->fbo_cache[i][j][k];
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xorg_list_for_each_entry_safe_reverse(fbo_entry, tmp, cache,
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list) {
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if (GLAMOR_TICK_AFTER(fbo_entry->expire, glamor_priv->tick)) {
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break;
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}
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glamor_priv->fbo_cache_watermark -=
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fbo_entry->width * fbo_entry->height;
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xorg_list_del(&fbo_entry->list);
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DEBUGF("cache %p fbo %p expired %d current %d \n", cache,
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fbo_entry, fbo_entry->expire, glamor_priv->tick);
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glamor_purge_fbo(glamor_priv, fbo_entry);
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}
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}
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}
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void
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glamor_init_pixmap_fbo(ScreenPtr screen)
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{
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glamor_screen_private *glamor_priv;
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int i, j, k;
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glamor_priv = glamor_get_screen_private(screen);
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for (i = 0; i < CACHE_FORMAT_COUNT; i++)
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for (j = 0; j < CACHE_BUCKET_WCOUNT; j++)
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for (k = 0; k < CACHE_BUCKET_HCOUNT; k++) {
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xorg_list_init(&glamor_priv->fbo_cache[i][j][k]);
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}
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glamor_priv->fbo_cache_watermark = 0;
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}
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void
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glamor_fini_pixmap_fbo(ScreenPtr screen)
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{
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struct xorg_list *cache;
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glamor_screen_private *glamor_priv;
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glamor_pixmap_fbo *fbo_entry, *tmp;
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int i, j, k;
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glamor_priv = glamor_get_screen_private(screen);
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for (i = 0; i < CACHE_FORMAT_COUNT; i++)
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for (j = 0; j < CACHE_BUCKET_WCOUNT; j++)
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for (k = 0; k < CACHE_BUCKET_HCOUNT; k++) {
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cache = &glamor_priv->fbo_cache[i][j][k];
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xorg_list_for_each_entry_safe_reverse(fbo_entry, tmp, cache,
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list) {
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xorg_list_del(&fbo_entry->list);
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glamor_purge_fbo(glamor_priv, fbo_entry);
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}
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}
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}
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void
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glamor_destroy_fbo(glamor_screen_private *glamor_priv,
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glamor_pixmap_fbo *fbo)
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{
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xorg_list_del(&fbo->list);
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glamor_pixmap_fbo_cache_put(glamor_priv, fbo);
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}
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static int
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_glamor_create_tex(glamor_screen_private *glamor_priv,
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int w, int h, GLenum format)
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{
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unsigned int tex;
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glamor_make_current(glamor_priv);
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glGenTextures(1, &tex);
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glBindTexture(GL_TEXTURE_2D, tex);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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if (format == glamor_priv->one_channel_format && format == GL_RED)
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_A, GL_RED);
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glamor_priv->suppress_gl_out_of_memory_logging = true;
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glTexImage2D(GL_TEXTURE_2D, 0, format, w, h, 0,
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format, GL_UNSIGNED_BYTE, NULL);
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glamor_priv->suppress_gl_out_of_memory_logging = false;
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if (glGetError() == GL_OUT_OF_MEMORY) {
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if (!glamor_priv->logged_any_fbo_allocation_failure) {
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LogMessageVerb(X_WARNING, 0, "glamor: Failed to allocate %dx%d "
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"FBO due to GL_OUT_OF_MEMORY.\n", w, h);
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LogMessageVerb(X_WARNING, 0,
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"glamor: Expect reduced performance.\n");
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glamor_priv->logged_any_fbo_allocation_failure = true;
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}
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glDeleteTextures(1, &tex);
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return 0;
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}
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return tex;
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}
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glamor_pixmap_fbo *
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glamor_create_fbo(glamor_screen_private *glamor_priv,
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int w, int h, GLenum format, int flag)
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{
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glamor_pixmap_fbo *fbo;
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GLint tex = 0;
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if (flag == GLAMOR_CREATE_FBO_NO_FBO || flag == CREATE_PIXMAP_USAGE_SHARED)
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goto new_fbo;
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fbo = glamor_pixmap_fbo_cache_get(glamor_priv, w, h, format);
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if (fbo)
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return fbo;
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new_fbo:
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tex = _glamor_create_tex(glamor_priv, w, h, format);
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if (!tex)
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return NULL;
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fbo = glamor_create_fbo_from_tex(glamor_priv, w, h, format, tex, flag);
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return fbo;
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}
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/**
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* Create storage for the w * h region, using FBOs of the GL's maximum
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* supported size.
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*/
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glamor_pixmap_fbo *
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glamor_create_fbo_array(glamor_screen_private *glamor_priv,
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int w, int h, GLenum format, int flag,
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int block_w, int block_h,
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glamor_pixmap_private *priv)
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{
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int block_wcnt;
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int block_hcnt;
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glamor_pixmap_fbo **fbo_array;
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BoxPtr box_array;
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int i, j;
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priv->block_w = block_w;
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priv->block_h = block_h;
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block_wcnt = (w + block_w - 1) / block_w;
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block_hcnt = (h + block_h - 1) / block_h;
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box_array = calloc(block_wcnt * block_hcnt, sizeof(box_array[0]));
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if (box_array == NULL)
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return NULL;
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fbo_array = calloc(block_wcnt * block_hcnt, sizeof(glamor_pixmap_fbo *));
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if (fbo_array == NULL) {
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free(box_array);
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return FALSE;
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}
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for (i = 0; i < block_hcnt; i++) {
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int block_y1, block_y2;
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int fbo_w, fbo_h;
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block_y1 = i * block_h;
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block_y2 = (block_y1 + block_h) > h ? h : (block_y1 + block_h);
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fbo_h = block_y2 - block_y1;
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for (j = 0; j < block_wcnt; j++) {
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box_array[i * block_wcnt + j].x1 = j * block_w;
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box_array[i * block_wcnt + j].y1 = block_y1;
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box_array[i * block_wcnt + j].x2 =
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(j + 1) * block_w > w ? w : (j + 1) * block_w;
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box_array[i * block_wcnt + j].y2 = block_y2;
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fbo_w =
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box_array[i * block_wcnt + j].x2 - box_array[i * block_wcnt +
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j].x1;
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fbo_array[i * block_wcnt + j] = glamor_create_fbo(glamor_priv,
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fbo_w, fbo_h,
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format,
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GLAMOR_CREATE_PIXMAP_FIXUP);
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if (fbo_array[i * block_wcnt + j] == NULL)
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goto cleanup;
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}
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}
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priv->box = box_array[0];
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priv->box_array = box_array;
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priv->fbo_array = fbo_array;
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priv->block_wcnt = block_wcnt;
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priv->block_hcnt = block_hcnt;
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return fbo_array[0];
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cleanup:
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for (i = 0; i < block_wcnt * block_hcnt; i++)
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if (fbo_array[i])
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glamor_destroy_fbo(glamor_priv, fbo_array[i]);
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free(box_array);
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free(fbo_array);
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return NULL;
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}
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|
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glamor_pixmap_fbo *
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glamor_pixmap_detach_fbo(glamor_pixmap_private *pixmap_priv)
|
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{
|
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glamor_pixmap_fbo *fbo;
|
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|
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if (pixmap_priv == NULL)
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return NULL;
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|
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fbo = pixmap_priv->fbo;
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if (fbo == NULL)
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return NULL;
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|
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pixmap_priv->fbo = NULL;
|
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return fbo;
|
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}
|
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|
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/* The pixmap must not be attached to another fbo. */
|
|
void
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glamor_pixmap_attach_fbo(PixmapPtr pixmap, glamor_pixmap_fbo *fbo)
|
|
{
|
|
glamor_pixmap_private *pixmap_priv;
|
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|
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pixmap_priv = glamor_get_pixmap_private(pixmap);
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|
|
|
if (pixmap_priv->fbo)
|
|
return;
|
|
|
|
pixmap_priv->fbo = fbo;
|
|
|
|
switch (pixmap_priv->type) {
|
|
case GLAMOR_TEXTURE_ONLY:
|
|
case GLAMOR_TEXTURE_DRM:
|
|
pixmap_priv->gl_fbo = GLAMOR_FBO_NORMAL;
|
|
pixmap->devPrivate.ptr = NULL;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
glamor_pixmap_destroy_fbo(PixmapPtr pixmap)
|
|
{
|
|
ScreenPtr screen = pixmap->drawable.pScreen;
|
|
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
|
|
glamor_pixmap_private *priv = glamor_get_pixmap_private(pixmap);
|
|
glamor_pixmap_fbo *fbo;
|
|
|
|
if (glamor_pixmap_priv_is_large(priv)) {
|
|
int i;
|
|
|
|
for (i = 0; i < priv->block_wcnt * priv->block_hcnt; i++)
|
|
glamor_destroy_fbo(glamor_priv, priv->fbo_array[i]);
|
|
free(priv->fbo_array);
|
|
}
|
|
else {
|
|
fbo = glamor_pixmap_detach_fbo(priv);
|
|
if (fbo)
|
|
glamor_destroy_fbo(glamor_priv, fbo);
|
|
}
|
|
}
|
|
|
|
Bool
|
|
glamor_pixmap_ensure_fbo(PixmapPtr pixmap, GLenum format, int flag)
|
|
{
|
|
glamor_screen_private *glamor_priv;
|
|
glamor_pixmap_private *pixmap_priv;
|
|
glamor_pixmap_fbo *fbo;
|
|
|
|
glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
|
|
pixmap_priv = glamor_get_pixmap_private(pixmap);
|
|
if (pixmap_priv->fbo == NULL) {
|
|
|
|
fbo = glamor_create_fbo(glamor_priv, pixmap->drawable.width,
|
|
pixmap->drawable.height, format, flag);
|
|
if (fbo == NULL)
|
|
return FALSE;
|
|
|
|
glamor_pixmap_attach_fbo(pixmap, fbo);
|
|
}
|
|
else {
|
|
/* We do have a fbo, but it may lack of fb or tex. */
|
|
if (!pixmap_priv->fbo->tex)
|
|
pixmap_priv->fbo->tex =
|
|
_glamor_create_tex(glamor_priv, pixmap->drawable.width,
|
|
pixmap->drawable.height, format);
|
|
|
|
if (flag != GLAMOR_CREATE_FBO_NO_FBO && pixmap_priv->fbo->fb == 0)
|
|
if (glamor_pixmap_ensure_fb(glamor_priv, pixmap_priv->fbo) != 0)
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
_X_EXPORT void
|
|
glamor_pixmap_exchange_fbos(PixmapPtr front, PixmapPtr back)
|
|
{
|
|
glamor_pixmap_private *front_priv, *back_priv;
|
|
glamor_pixmap_fbo *temp_fbo;
|
|
|
|
front_priv = glamor_get_pixmap_private(front);
|
|
back_priv = glamor_get_pixmap_private(back);
|
|
temp_fbo = front_priv->fbo;
|
|
front_priv->fbo = back_priv->fbo;
|
|
back_priv->fbo = temp_fbo;
|
|
}
|