430bc16ca0
If we are using MESA as our GL library, then both xserver's GLX and glamor are link to the same library. As xserver's GLX has its own _glapi_get/set_context/dispatch etc, and it is a simplified version derived from mesa thus is not sufficient for mesa/egl's dri loader which is used by glamor. Then if glx module is loaded before glamoregl module, the initialization of mesa/egl/opengl will not be correct, and will fail at a very early stage, most likely fail to map the element buffer. Two methodis to fix this problem, first is to modify the xserver's glx's glapi.c to fit mesa's requirement. The second is to put a glamor.conf as below, to the system's xorg.conf path. Section "Module" Load "glamoregl" EndSection Then glamor will be loaded firstly, and the mesa's libglapi.so will be used. As current xserver's dispatch table is the same as mesa's, then the glx's dri loader can work without problem. We took the second method as it don't need any change to xorg.:) Although this is not a graceful implementation as it depends on the xserver's dispatch table and the mesa's dispatch table is the same and the context set and get is using the same method. Anyway it works. As by default, xserver will enable GLX_USE_TLS. But mesa will not enable it, you may need to enable that when build mesa. Three pre-requirements to make this glamor version work: 0. Make sure xserver has commit 66e603, if not please pull the latest master branch. 1. Rebuild mesa by enable GLX_USE_TLS. 2. Put the glamor.conf to your system's xorg.conf path and make sure it loaded prior to glx module. Preliminary testing shows indirect glxgears works fine. If user want to use GLES2 for glamor by using MESA, GLX will not work correctly. If you are not using normal MESA, for example PVR's private GLES implementation, then it should be ok to use GLES2 glamor and the GLX should work as expected. In this commit, I use gbm to check whether we are using MESA or non-mesa. Maybe not the best way. Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
476 lines
13 KiB
C
476 lines
13 KiB
C
/*
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* Copyright © 2008 Intel Corporation
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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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* Eric Anholt <eric@anholt.net>
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*
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*/
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/** @file glamor.c
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* This file covers the initialization and teardown of glamor, and has various
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* functions not responsible for performing rendering.
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*/
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#include <stdlib.h>
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#include "glamor_priv.h"
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static DevPrivateKeyRec glamor_screen_private_key_index;
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DevPrivateKey glamor_screen_private_key = &glamor_screen_private_key_index;
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static DevPrivateKeyRec glamor_pixmap_private_key_index;
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DevPrivateKey glamor_pixmap_private_key = &glamor_pixmap_private_key_index;
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/**
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* glamor_get_drawable_pixmap() returns a backing pixmap for a given drawable.
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*
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* @param drawable the drawable being requested.
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*
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* This function returns the backing pixmap for a drawable, whether it is a
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* redirected window, unredirected window, or already a pixmap. Note that
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* coordinate translation is needed when drawing to the backing pixmap of a
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* redirected window, and the translation coordinates are provided by calling
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* exaGetOffscreenPixmap() on the drawable.
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*/
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PixmapPtr
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glamor_get_drawable_pixmap(DrawablePtr drawable)
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{
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if (drawable->type == DRAWABLE_WINDOW)
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return drawable->
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pScreen->GetWindowPixmap((WindowPtr) drawable);
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else
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return (PixmapPtr) drawable;
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}
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_X_EXPORT void
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glamor_set_pixmap_type(PixmapPtr pixmap, glamor_pixmap_type_t type)
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{
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glamor_pixmap_private *pixmap_priv;
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glamor_screen_private *glamor_priv =
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glamor_get_screen_private(pixmap->drawable.pScreen);
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pixmap_priv = glamor_get_pixmap_private(pixmap);
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if (pixmap_priv == NULL) {
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pixmap_priv = calloc(sizeof(*pixmap_priv), 1);
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glamor_set_pixmap_private(pixmap, pixmap_priv);
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pixmap_priv->container = pixmap;
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pixmap_priv->glamor_priv = glamor_priv;
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}
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pixmap_priv->type = type;
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}
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_X_EXPORT void
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glamor_set_pixmap_texture(PixmapPtr pixmap, unsigned int tex)
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{
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ScreenPtr screen = pixmap->drawable.pScreen;
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glamor_pixmap_private *pixmap_priv;
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glamor_screen_private *glamor_priv;
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glamor_pixmap_fbo *fbo;
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glamor_priv = glamor_get_screen_private(screen);
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pixmap_priv = glamor_get_pixmap_private(pixmap);
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if (pixmap_priv->fbo) {
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fbo = glamor_pixmap_detach_fbo(pixmap_priv);
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glamor_destroy_fbo(fbo);
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}
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fbo = glamor_create_fbo_from_tex(glamor_priv, pixmap->drawable.width,
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pixmap->drawable.height,
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pixmap->drawable.depth, tex, 0);
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if (fbo == NULL) {
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ErrorF("XXX fail to create fbo.\n");
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return;
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}
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glamor_pixmap_attach_fbo(pixmap, fbo);
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}
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void
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glamor_set_screen_pixmap(PixmapPtr screen_pixmap)
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{
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glamor_pixmap_private *pixmap_priv;
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glamor_screen_private *glamor_priv;
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glamor_priv = glamor_get_screen_private(screen_pixmap->drawable.pScreen);
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pixmap_priv = glamor_get_pixmap_private(screen_pixmap);
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glamor_priv->screen_fbo = pixmap_priv->fbo->fb;
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pixmap_priv->fbo->width = screen_pixmap->drawable.width;
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pixmap_priv->fbo->height = screen_pixmap->drawable.height;
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}
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PixmapPtr
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glamor_create_pixmap(ScreenPtr screen, int w, int h, int depth,
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unsigned int usage)
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{
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PixmapPtr pixmap;
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glamor_pixmap_type_t type = GLAMOR_TEXTURE_ONLY;
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glamor_pixmap_private *pixmap_priv;
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glamor_screen_private *glamor_priv =
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glamor_get_screen_private(screen);
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glamor_pixmap_fbo *fbo;
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int pitch;
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int flag;
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if (w > 32767 || h > 32767)
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return NullPixmap;
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if (usage == GLAMOR_CREATE_PIXMAP_CPU || (w == 0 && h == 0))
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return fbCreatePixmap(screen, w, h, depth, usage);
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else
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pixmap = fbCreatePixmap(screen, 0, 0, depth, usage);
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pixmap_priv = calloc(1, sizeof(*pixmap_priv));
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if (!pixmap_priv) {
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fbDestroyPixmap(pixmap);
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return fbCreatePixmap(screen, w, h, depth, usage);
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}
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glamor_set_pixmap_private(pixmap, pixmap_priv);
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pixmap_priv->container = pixmap;
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pixmap_priv->glamor_priv = glamor_priv;
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pixmap_priv->type = type;
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fbo = glamor_create_fbo(glamor_priv, w, h, depth, usage);
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if (fbo == NULL) {
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fbDestroyPixmap(pixmap);
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free(pixmap_priv);
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return fbCreatePixmap(screen, w, h, depth, usage);
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}
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glamor_pixmap_attach_fbo(pixmap, fbo);
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pitch = (((w * pixmap->drawable.bitsPerPixel + 7) / 8) + 3) & ~3;
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screen->ModifyPixmapHeader(pixmap, w, h, 0, 0, pitch, NULL);
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return pixmap;
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}
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void
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glamor_destroy_textured_pixmap(PixmapPtr pixmap)
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{
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if (pixmap->refcnt == 1) {
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glamor_pixmap_private *pixmap_priv;
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pixmap_priv = glamor_get_pixmap_private(pixmap);
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if (pixmap_priv != NULL) {
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glamor_pixmap_fbo *fbo;
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fbo = glamor_pixmap_detach_fbo(pixmap_priv);
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if (fbo)
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glamor_destroy_fbo(fbo);
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free(pixmap_priv);
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}
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}
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}
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Bool
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glamor_destroy_pixmap(PixmapPtr pixmap)
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{
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glamor_destroy_textured_pixmap(pixmap);
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return fbDestroyPixmap(pixmap);
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}
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void
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glamor_block_handler(ScreenPtr screen)
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{
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glamor_screen_private *glamor_priv =
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glamor_get_screen_private(screen);
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glamor_gl_dispatch *dispatch = &glamor_priv->dispatch;
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GLAMOR_DEFINE_CONTEXT;
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GLAMOR_SET_CONTEXT(glamor_priv);
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glamor_priv->tick++;
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dispatch->glFlush();
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dispatch->glFinish();
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glamor_fbo_expire(glamor_priv);
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GLAMOR_RESTORE_CONTEXT(glamor_priv);
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}
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static void
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_glamor_block_handler(void *data, OSTimePtr timeout,
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void *last_select_mask)
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{
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glamor_gl_dispatch *dispatch = data;
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dispatch->glFlush();
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dispatch->glFinish();
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}
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static void
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_glamor_wakeup_handler(void *data, int result, void *last_select_mask)
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{
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}
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static void
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glamor_set_debug_level(int *debug_level)
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{
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char *debug_level_string;
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debug_level_string = getenv("GLAMOR_DEBUG");
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if (debug_level_string
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&& sscanf(debug_level_string, "%d", debug_level) == 1)
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return;
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*debug_level = 0;
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}
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int glamor_debug_level;
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/** Set up glamor for an already-configured GL context. */
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Bool
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glamor_init(ScreenPtr screen, unsigned int flags)
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{
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glamor_screen_private *glamor_priv;
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int gl_version;
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#ifdef RENDER
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PictureScreenPtr ps = GetPictureScreenIfSet(screen);
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#endif
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if (flags & ~GLAMOR_VALID_FLAGS) {
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ErrorF("glamor_init: Invalid flags %x\n", flags);
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return FALSE;
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}
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glamor_priv = calloc(1, sizeof(*glamor_priv));
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if (glamor_priv == NULL)
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return FALSE;
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if (flags & GLAMOR_INVERTED_Y_AXIS) {
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glamor_priv->yInverted = 1;
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} else
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glamor_priv->yInverted = 0;
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if (!dixRegisterPrivateKey
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(glamor_screen_private_key, PRIVATE_SCREEN, 0)) {
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LogMessage(X_WARNING,
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"glamor%d: Failed to allocate screen private\n",
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screen->myNum);
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goto fail;
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}
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glamor_set_screen_private(screen, glamor_priv);
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if (!dixRegisterPrivateKey
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(glamor_pixmap_private_key, PRIVATE_PIXMAP, 0)) {
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LogMessage(X_WARNING,
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"glamor%d: Failed to allocate pixmap private\n",
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screen->myNum);
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goto fail;;
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}
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gl_version = glamor_gl_get_version();
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#ifndef GLAMOR_GLES2
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if (gl_version < GLAMOR_GL_VERSION_ENCODE(1, 3)) {
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ErrorF("Require OpenGL version 1.3 or latter.\n");
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goto fail;
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}
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#else
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if (gl_version < GLAMOR_GL_VERSION_ENCODE(2, 0)) {
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ErrorF("Require Open GLES2.0 or latter.\n");
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goto fail;
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}
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#endif
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glamor_gl_dispatch_init(screen, &glamor_priv->dispatch,
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gl_version);
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#ifdef GLAMOR_GLES2
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if (!glamor_gl_has_extension("GL_EXT_texture_format_BGRA8888")) {
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ErrorF("GL_EXT_texture_format_BGRA8888 required\n");
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goto fail;
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}
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#endif
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glamor_priv->has_pack_invert =
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glamor_gl_has_extension("GL_MESA_pack_invert");
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glamor_priv->has_fbo_blit =
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glamor_gl_has_extension("GL_EXT_framebuffer_blit");
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glamor_priv->dispatch.glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE,
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&glamor_priv->max_fbo_size);
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glamor_set_debug_level(&glamor_debug_level);
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#ifdef GLAMOR_GLES2
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glamor_priv->gl_flavor = GLAMOR_GL_ES2;
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#else
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glamor_priv->gl_flavor = GLAMOR_GL_DESKTOP;
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#endif
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/* If we are using egl screen, call egl screen init to
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* register correct close screen function. */
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if (flags & GLAMOR_USE_EGL_SCREEN)
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glamor_egl_screen_init(screen);
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glamor_priv->saved_procs.close_screen = screen->CloseScreen;
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screen->CloseScreen = glamor_close_screen;
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if (flags & GLAMOR_USE_SCREEN) {
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if (!RegisterBlockAndWakeupHandlers(_glamor_block_handler,
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_glamor_wakeup_handler,
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(void *)
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&glamor_priv->dispatch)) {
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goto fail;
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}
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glamor_priv->saved_procs.create_gc = screen->CreateGC;
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screen->CreateGC = glamor_create_gc;
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glamor_priv->saved_procs.create_pixmap = screen->CreatePixmap;
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screen->CreatePixmap = glamor_create_pixmap;
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glamor_priv->saved_procs.destroy_pixmap = screen->DestroyPixmap;
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screen->DestroyPixmap = glamor_destroy_pixmap;
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glamor_priv->saved_procs.get_spans = screen->GetSpans;
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screen->GetSpans = glamor_get_spans;
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glamor_priv->saved_procs.get_image = screen->GetImage;
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screen->GetImage = glamor_get_image;
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glamor_priv->saved_procs.change_window_attributes =
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screen->ChangeWindowAttributes;
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screen->ChangeWindowAttributes =
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glamor_change_window_attributes;
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glamor_priv->saved_procs.copy_window = screen->CopyWindow;
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screen->CopyWindow = glamor_copy_window;
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glamor_priv->saved_procs.bitmap_to_region =
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screen->BitmapToRegion;
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screen->BitmapToRegion = glamor_bitmap_to_region;
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}
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#ifdef RENDER
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if (flags & GLAMOR_USE_PICTURE_SCREEN) {
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glamor_priv->saved_procs.composite = ps->Composite;
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ps->Composite = glamor_composite;
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glamor_priv->saved_procs.trapezoids = ps->Trapezoids;
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ps->Trapezoids = glamor_trapezoids;
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glamor_priv->saved_procs.glyphs = ps->Glyphs;
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ps->Glyphs = glamor_glyphs;
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glamor_priv->saved_procs.triangles = ps->Triangles;
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ps->Triangles = glamor_triangles;
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glamor_priv->saved_procs.addtraps = ps->AddTraps;
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ps->AddTraps = glamor_add_traps;
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glamor_priv->saved_procs.unrealize_glyph = ps->UnrealizeGlyph;
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ps->UnrealizeGlyph = glamor_glyph_unrealize;
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}
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glamor_priv->saved_procs.create_picture = ps->CreatePicture;
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ps->CreatePicture = glamor_create_picture;
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glamor_priv->saved_procs.destroy_picture = ps->DestroyPicture;
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ps->DestroyPicture = glamor_destroy_picture;
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glamor_init_composite_shaders(screen);
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#endif
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glamor_init_pixmap_fbo(screen);
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glamor_init_solid_shader(screen);
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glamor_init_tile_shader(screen);
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glamor_init_putimage_shaders(screen);
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glamor_init_finish_access_shaders(screen);
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glamor_pixmap_init(screen);
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glamor_priv->flags = flags;
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glamor_priv->screen = screen;
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return TRUE;
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fail:
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free(glamor_priv);
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glamor_set_screen_private(screen, NULL);
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return FALSE;
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}
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static void
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glamor_release_screen_priv(ScreenPtr screen)
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{
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glamor_screen_private *glamor_priv;
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glamor_priv = glamor_get_screen_private(screen);
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#ifdef RENDER
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glamor_fini_composite_shaders(screen);
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#endif
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glamor_fini_pixmap_fbo(screen);
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glamor_fini_solid_shader(screen);
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glamor_fini_tile_shader(screen);
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glamor_fini_putimage_shaders(screen);
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glamor_fini_finish_access_shaders(screen);
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glamor_pixmap_fini(screen);
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free(glamor_priv);
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glamor_set_screen_private(screen, NULL);
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}
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Bool
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glamor_close_screen(int idx, ScreenPtr screen)
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{
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glamor_screen_private *glamor_priv;
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PixmapPtr screen_pixmap;
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glamor_pixmap_private *screen_pixmap_priv;
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glamor_pixmap_fbo *fbo;
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int flags;
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glamor_priv = glamor_get_screen_private(screen);
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flags = glamor_priv->flags;
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#ifdef RENDER
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PictureScreenPtr ps = GetPictureScreenIfSet(screen);
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#endif
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glamor_glyphs_fini(screen);
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screen->CloseScreen = glamor_priv->saved_procs.close_screen;
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if (flags & GLAMOR_USE_SCREEN) {
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screen->CreateGC = glamor_priv->saved_procs.create_gc;
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screen->CreatePixmap = glamor_priv->saved_procs.create_pixmap;
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screen->DestroyPixmap = glamor_priv->saved_procs.destroy_pixmap;
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screen->GetSpans = glamor_priv->saved_procs.get_spans;
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screen->ChangeWindowAttributes =
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glamor_priv->saved_procs.change_window_attributes;
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screen->CopyWindow = glamor_priv->saved_procs.copy_window;
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screen->BitmapToRegion = glamor_priv->saved_procs.bitmap_to_region;
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}
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#ifdef RENDER
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if (ps && (flags & GLAMOR_USE_PICTURE_SCREEN)) {
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|
|
|
ps->Composite = glamor_priv->saved_procs.composite;
|
|
ps->Trapezoids = glamor_priv->saved_procs.trapezoids;
|
|
ps->Glyphs = glamor_priv->saved_procs.glyphs;
|
|
ps->Triangles = glamor_priv->saved_procs.triangles;
|
|
ps->CreatePicture = glamor_priv->saved_procs.create_picture;
|
|
}
|
|
#endif
|
|
screen_pixmap = screen->GetScreenPixmap(screen);
|
|
screen_pixmap_priv = glamor_get_pixmap_private(screen_pixmap);
|
|
fbo = glamor_pixmap_detach_fbo(screen_pixmap_priv);
|
|
glamor_purge_fbo(fbo);
|
|
glamor_release_screen_priv(screen);
|
|
|
|
return screen->CloseScreen(idx, screen);
|
|
}
|
|
|
|
|
|
void
|
|
glamor_fini(ScreenPtr screen)
|
|
{
|
|
/* Do nothing currently. */
|
|
}
|