Windsome Zeng
c50e5ba7a5
Cherry-pick from http://192.168.110.45/sdk/buildroot/-/commit/ed70e2b79cbc7a504792899e2cd3577777fd54bd
141 lines
4.5 KiB
Diff
141 lines
4.5 KiB
Diff
From 43662126e9973c6cff496ba32fae3cf372e0646b Mon Sep 17 00:00:00 2001
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From: Brendan King <Brendan.King@imgtec.com>
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Date: Thu, 11 Jun 2020 12:29:51 +0100
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Subject: [PATCH 45/50] meson: allow libGL to be built without GLX
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If Meson is run with option "glx" set to "null", build the
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OpenGL library without GLX.
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The "eglBindAPI workaround for dEQP bug" change to eglcurrent.h
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(commit 2d46c91040aeb8ebad486214159c34417fbc87db) has been
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modified to use a new EGL_WITH_OPENGL define, which indicates
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whether OpneGL is present or not. This allows EGL to be used
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with OpenGL on platforms other than X11.
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---
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meson.build | 8 ++++++--
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meson_options.txt | 2 +-
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src/egl/main/eglcurrent.h | 7 +++----
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src/glx/meson.build | 16 ++++++++++++----
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src/meson.build | 2 +-
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5 files changed, 23 insertions(+), 12 deletions(-)
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diff --git a/meson.build b/meson.build
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index 3c55447b6eb..af020203752 100644
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--- a/meson.build
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+++ b/meson.build
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@@ -459,6 +459,10 @@ else
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with_egl = false
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endif
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+if with_egl and with_opengl and with_glx != 'disabled'
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+ pre_args += '-DEGL_WITH_OPENGL'
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+endif
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+
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# Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
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use_elf_tls = false
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if not ['windows', 'freebsd', 'openbsd', 'haiku'].contains(host_machine.system()) and (not with_platform_android or get_option('platform-sdk-version') >= 29)
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@@ -466,7 +470,7 @@ if not ['windows', 'freebsd', 'openbsd', 'haiku'].contains(host_machine.system()
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use_elf_tls = true
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endif
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-if with_glx != 'disabled'
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+if with_glx != 'disabled' and with_glx != 'null'
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if not (with_platform_x11 and with_any_opengl)
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error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
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elif with_glx == 'gallium-xlib'
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@@ -528,7 +532,7 @@ if with_any_vk and (with_platform_x11 and not with_dri3)
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error('Vulkan drivers require dri3 for X11 support')
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endif
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if with_dri
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- if with_glx == 'disabled' and not with_egl and not with_gbm
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+ if (with_glx == 'disabled' or with_glx == 'null') and not with_egl and not with_gbm
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error('building dri drivers require at least one windowing system')
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endif
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endif
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diff --git a/meson_options.txt b/meson_options.txt
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index 9073223e8f5..4038629544e 100644
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--- a/meson_options.txt
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+++ b/meson_options.txt
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@@ -267,7 +267,7 @@ option(
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'glx',
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type : 'combo',
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value : 'auto',
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- choices : ['auto', 'disabled', 'dri', 'xlib', 'gallium-xlib'],
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+ choices : ['auto', 'disabled', 'dri', 'xlib', 'gallium-xlib', 'null'],
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description : 'Build support for GLX platform'
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)
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option(
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diff --git a/src/egl/main/eglcurrent.h b/src/egl/main/eglcurrent.h
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index 32570970947..dcc418afd6f 100644
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--- a/src/egl/main/eglcurrent.h
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+++ b/src/egl/main/eglcurrent.h
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@@ -71,11 +71,10 @@ struct _egl_thread_info
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static inline EGLBoolean
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_eglIsApiValid(EGLenum api)
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{
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-#ifndef HAVE_X11_PLATFORM
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- /* OpenGL is not a valid/supported API on Android */
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- return api == EGL_OPENGL_ES_API;
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-#else
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+#ifdef EGL_WITH_OPENGL
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return (api == EGL_OPENGL_ES_API || api == EGL_OPENGL_API);
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+#else
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+ return api == EGL_OPENGL_ES_API;
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#endif
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}
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diff --git a/src/glx/meson.build b/src/glx/meson.build
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index 58f9e1aa896..41ca936b8f4 100644
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--- a/src/glx/meson.build
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+++ b/src/glx/meson.build
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@@ -126,7 +126,11 @@ gl_lib_cargs = [
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'-D_REENTRANT',
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]
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-libglx = static_library(
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+if with_glx == 'null'
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+ libglx_link = [libglapi]
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+ libglx_link_whole = [libglapi_static]
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+else
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+ libglx = static_library(
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'glx',
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[files_libglx, glx_generated],
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include_directories : [inc_include, inc_src, inc_mapi, inc_mesa, inc_gallium, inc_gallium_aux, inc_glapi, inc_loader],
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@@ -143,13 +147,17 @@ libglx = static_library(
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idep_mesautil, idep_xmlconfig,
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dep_libdrm, dep_dri2proto, dep_glproto, dep_x11, dep_glvnd,
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],
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-)
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+ )
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+
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+ libglx_link = [libglapi_static,libglapi]
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+ libglx_link_whole = [libglx]
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+endif
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libgl = shared_library(
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gl_lib_name,
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[],
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- link_with : [libglapi_static, libglapi],
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- link_whole : libglx,
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+ link_with : libglx_link,
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+ link_whole : libglx_link_whole,
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link_args : [ld_args_bsymbolic, ld_args_gc_sections, extra_ld_args_libgl],
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dependencies : [
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dep_libdrm, dep_dl, dep_m, dep_thread, dep_x11, dep_xcb_glx, dep_xcb,
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diff --git a/src/meson.build b/src/meson.build
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index d96c754a63d..a92580b2dd5 100644
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--- a/src/meson.build
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+++ b/src/meson.build
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@@ -104,7 +104,7 @@ subdir('loader')
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if with_platform_haiku
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subdir('hgl')
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endif
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-if with_glx == 'dri'
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+if with_glx == 'dri' or with_glx == 'null'
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subdir('glx')
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endif
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if with_gbm
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--
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2.17.1
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