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-rw-r--r--configure.ac15
-rw-r--r--docs/patents.txt31
-rw-r--r--meson.build4
-rw-r--r--meson_options.txt6
-rwxr-xr-xscons/gallium.py4
-rw-r--r--src/gallium/auxiliary/util/u_format.c9
-rw-r--r--src/mesa/main/extensions.c2
7 files changed, 0 insertions, 71 deletions
diff --git a/configure.ac b/configure.ac
index 3f747bf38cc..7a0e4754208 100644
--- a/configure.ac
+++ b/configure.ac
@@ -764,21 +764,6 @@ esac
AC_SUBST([LIB_EXT])
dnl
-dnl potentially-infringing-but-nobody-knows-for-sure stuff
-dnl
-AC_ARG_ENABLE([texture-float],
- [AS_HELP_STRING([--enable-texture-float],
- [enable floating-point textures and renderbuffers @<:@default=disabled@:>@])],
- [enable_texture_float="$enableval"],
- [enable_texture_float=no]
-)
-if test "x$enable_texture_float" = xyes; then
- AC_MSG_WARN([Floating-point textures enabled.])
- AC_MSG_WARN([Please consult docs/patents.txt with your lawyer before building Mesa.])
- DEFINES="$DEFINES -DTEXTURE_FLOAT_ENABLED"
-fi
-
-dnl
dnl Arch/platform-specific settings
dnl
AC_ARG_ENABLE([asm],
diff --git a/docs/patents.txt b/docs/patents.txt
deleted file mode 100644
index 91c5757d14d..00000000000
--- a/docs/patents.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-ARB_texture_float:
-
- Silicon Graphics, Inc. owns US Patent #6,650,327, issued November 18,
- 2003 [1].
-
- SGI believes this patent contains necessary IP for graphics systems
- implementing floating point rasterization and floating point
- framebuffer capabilities described in ARB_texture_float extension, and
- will discuss licensing on RAND terms, on an individual basis with
- companies wishing to use this IP in the context of conformant OpenGL
- implementations [2].
-
- The source code to implement ARB_texture_float extension is included
- and can be toggled on at compile time, for those who purchased a
- license from SGI, or are in a country where the patent does not apply,
- etc.
-
- The software is provided "as is", without warranty of any kind, express
- or implied, including but not limited to the warranties of
- merchantability, fitness for a particular purpose and noninfringement.
- In no event shall the authors or copyright holders be liable for any
- claim, damages or other liability, whether in an action of contract,
- tort or otherwise, arising from, out of or in connection with the
- software or the use or other dealings in the software.
-
- You should contact a lawyer or SGI's legal department if you want to
- enable this extension.
-
-
-[1] https://patents.google.com/patent/US6650327B1
-[2] https://www.opengl.org/registry/specs/ARB/texture_float.txt
diff --git a/meson.build b/meson.build
index 8350ce0e842..65ae32172d2 100644
--- a/meson.build
+++ b/meson.build
@@ -60,10 +60,6 @@ with_tools = get_option('tools')
if with_tools.contains('all')
with_tools = ['freedreno', 'glsl', 'intel', 'nir', 'nouveau']
endif
-if get_option('texture-float')
- pre_args += '-DTEXTURE_FLOAT_ENABLED'
- warning('Floating-point texture enabled. Please consult docs/patents.txt and your lawyer before building mesa.')
-endif
dri_drivers_path = get_option('dri-drivers-path')
if dri_drivers_path == ''
diff --git a/meson_options.txt b/meson_options.txt
index bfe2290868f..11d2b198dd0 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -265,12 +265,6 @@ option(
description : 'Build unit tests. Currently this will build *all* unit tests, which may build more than expected.'
)
option(
- 'texture-float',
- type : 'boolean',
- value : false,
- description : 'Enable floating point textures and renderbuffers. This option may be patent encumbered, please read docs/patents.txt and consult with your lawyer before turning this on.'
-)
-option(
'selinux',
type : 'boolean',
value : false,
diff --git a/scons/gallium.py b/scons/gallium.py
index 6cb20efcbf4..92a762a0c1e 100755
--- a/scons/gallium.py
+++ b/scons/gallium.py
@@ -392,10 +392,6 @@ def generate(env):
cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER']
if env['embedded']:
cppdefines += ['PIPE_SUBSYSTEM_EMBEDDED']
- if env['texture_float']:
- print('warning: Floating-point textures enabled.')
- print('warning: Please consult docs/patents.txt with your lawyer before building Mesa.')
- cppdefines += ['TEXTURE_FLOAT_ENABLED']
env.Append(CPPDEFINES = cppdefines)
# C compiler options
diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c
index 369b4c3126b..e0325e9c534 100644
--- a/src/gallium/auxiliary/util/u_format.c
+++ b/src/gallium/auxiliary/util/u_format.c
@@ -242,16 +242,7 @@ util_format_is_supported(enum pipe_format format, unsigned bind)
return FALSE;
}
-#ifndef TEXTURE_FLOAT_ENABLED
- if ((bind & PIPE_BIND_RENDER_TARGET) &&
- format != PIPE_FORMAT_R9G9B9E5_FLOAT &&
- format != PIPE_FORMAT_R11G11B10_FLOAT &&
- util_format_is_float(format)) {
- return FALSE;
- }
-#else
(void)bind;
-#endif
return TRUE;
}
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 38fc52d0205..5c8bd7a8741 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -129,9 +129,7 @@ _mesa_enable_sw_extensions(struct gl_context *ctx)
ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
ctx->Extensions.ARB_texture_filter_anisotropic = GL_TRUE;
-#ifdef TEXTURE_FLOAT_ENABLED
ctx->Extensions.ARB_texture_float = GL_TRUE;
-#endif
ctx->Extensions.ARB_texture_mirror_clamp_to_edge = GL_TRUE;
ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
ctx->Extensions.ARB_texture_rg = GL_TRUE;