[Mesa-dev] [Mesa-users] glClearColor is broken in a weird way if compiled with mangling enabled
Yuzhu Lu
yuzhu at wolfram.com
Mon Aug 24 09:51:46 PDT 2015
Hi Brian,
It happens for all the configuration I tried. Here is one example:
./configure --disable-xvmc --disable-glx --disable-dri --with-dri-drivers="" --with-gallium-drivers="swrast" --enable-texture-float --enable-shared-glapi --disable-egl --enable-mangling --with-egl-platforms="" --enable-gallium-osmesa --enable-gallium-llvm=yes --disable-llvm-shared-libs
I am not sure this is related. I am using 64bit Ubuntu.
Here are the only warnings I get:
nir/glsl_to_nir.cpp: In member function 'virtual void {anonymous}::nir_visitor::visit(ir_call*)':
nir/glsl_to_nir.cpp:610:73: warning: 'op' may be used uninitialized in this function [-Wmaybe-uninitialized]
nir_intrinsic_instr *instr = nir_intrinsic_instr_create(shader, op);
nir/nir_lower_phis_to_scalar.c: In function 'is_phi_src_scalarizable':
nir/nir_lower_phis_to_scalar.c:70:14: warning: 'or' of unmatched not-equal tests is always 1
src_alu->op != nir_op_vec4;
^
CXX nir/nir_lower_samplers.lo
nir/nir_lower_samplers.cpp: In function 'void lower_sampler(nir_tex_instr*, gl_shader_program*, const gl_program*, void*)':
nir/nir_lower_samplers.cpp:72:9: warning: unused variable 'has_indirect' [-Wunused-variable]
bool has_indirect = false;
Yuzhu
----- Original Message -----
From: "Brian Paul" <brianp at vmware.com>
To: "Yuzhu Lu" <yuzhu at wolfram.com>, mesa-dev at lists.freedesktop.org, mesa-users at lists.freedesktop.org
Sent: Monday, August 24, 2015 4:10:19 PM
Subject: Re: [Mesa-users] [Mesa-dev] glClearColor is broken in a weird way if compiled with mangling enabled
Sounds like the file is being compiled without having proper prototypes
for all the mgl functions. Do you see any compiler warnings when you
build? What gcc compiler options are you using?
-Brian
On 08/19/2015 06:18 PM, Yuzhu Lu wrote:
> Update:
>
> All function with GLclampf and GLfloat are messed up. But pointer are
> fine. Other datatype works fine as well. I never had such a weird issue
> before. The work around to replace it with GLdouble.
>
>
> Yuzhu
>
>
>
> ------------------------------------------------------------------------
> *From: *"Yuzhu Lu" <yuzhu at wolfram.com>
> *To: *mesa-dev at lists.freedesktop.org, mesa-users at lists.freedesktop.org
> *Sent: *Wednesday, August 19, 2015 5:15:46 PM
> *Subject: *Re: [Mesa-dev] glClearColor is broken in a weird way if
> compiled with mangling enabled
>
> It seems related to datatype GLclampf, which affects mglClearColor,
> mglBlendColor... If I replace it with double, everything works fine. Any
> ideas?
>
>
>
> Yuzhu
>
>
>
>
> ------------------------------------------------------------------------
> *From: *"Yuzhu Lu" <yuzhu at wolfram.com>
> *To: *mesa-dev at lists.freedesktop.org, mesa-users at lists.freedesktop.org
> *Sent: *Friday, August 14, 2015 1:22:05 PM
> *Subject: *[Mesa-dev] glClearColor is broken in a weird way if compiled
> with mangling enabled
>
>
> Hi All,
>
> Since I need to load osmesa and system GL api at the same time on Linux,
> I need to compile 10.5.9 osmesa in a mangled way. After a simple fix in
> glapi.h:
>
> /* Is this needed? It is incomplete anyway. */
> /*
> #ifdef USE_MGL_NAMESPACE
> #define _glapi_set_dispatch _mglapi_set_dispatch
> #define _glapi_get_dispatch _mglapi_get_dispatch
> #define _glapi_set_context _mglapi_set_context
> #define _glapi_get_context _mglapi_get_context
> #define _glapi_Dispatch _mglapi_Dispatch
> #define _glapi_Context _mglapi_Context
> #endif
> */
>
> Now it compiles fine and here is my configuration:
>
> ./configure CFLAGS="-O2" CXXFLAGS="-O2" --disable-xvmc --disable-glx
> --disable-dri --with-dri-drivers="" --with-gallium-drivers="swrast"
> --enable-texture-float --enable-shared-glapi --disable-egl
> --enable-mangling --with-egl-platforms="" --enable-gallium-osmesa
> --enable-gallium-llvm=yes --disable-llvm-shared-libs
> --with-osmesa-bits=32 --with-max-width=65536 --with-max-height=65536
>
> But glClearColor is broken in a weird way that the value passed in is
> revised internally. Here is my call:
> mglClearColor(0.5f, 0.3f, 0.3f, 0.3f);
>
> But if I print out the value in _mesa_ClearColor() method of Clear.c. It
> shows:
> ClearColor: 0.000000, 2.000000, 2.000000, 2.000000
>
> I totally have no idea why this is happening while everything works fine
> with mangling disabled.
>
> Also, the compiler complains that mglGetString returns int instead of
> const GLubyte*:
> osdemo32.c:441:1: warning: format ‘%s’ expects argument of type ‘char
> *’, but argument 2 has type ‘int’ [-Wformat=]
> printf("Version: %s\n", mglGetString(GL_VERSION));
>
> And mglGetString(GL_SHADING_LANGUAGE_VERSION) will crash the application
> while other string works fine.
>
> I also try to compile it with disable-shared-glapi flag, but I get
> errors. I am not sure this is because gl_mangle.h is dated. (If I
> manually add the following functions in gl_mangle.h, it compiles fine
> but some functions like glCreateShader will be totally messed up.)
>
> I would really appreciate it if someone have solutions because this is a
> very important project for us.
>
>
>
> CXXLD libMangledOSMesa32.la
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x5588):
> undefined reference to `glPointSizePointerOES'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6ae8):
> undefined reference to `glPolygonOffsetClampEXT'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6b78):
> undefined reference to `glAlphaFuncx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6b90):
> undefined reference to `glClearColorx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6ba8):
> undefined reference to `glClearDepthx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6bc0):
> undefined reference to `glColor4x'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6bd8):
> undefined reference to `glDepthRangex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6bf0):
> undefined reference to `glFogx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6c08):
> undefined reference to `glFogxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6c20):
> undefined reference to `glFrustumf'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6c38):
> undefined reference to `glFrustumx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6c50):
> undefined reference to `glLightModelx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6c68):
> undefined reference to `glLightModelxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6c80):
> undefined reference to `glLightx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6c98):
> undefined reference to `glLightxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6cb0):
> undefined reference to `glLineWidthx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6cc8):
> undefined reference to `glLoadMatrixx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6ce0):
> undefined reference to `glMaterialx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6cf8):
> undefined reference to `glMaterialxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6d10):
> undefined reference to `glMultMatrixx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6d28):
> undefined reference to `glMultiTexCoord4x'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6d40):
> undefined reference to `glNormal3x'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6d58):
> undefined reference to `glOrthof'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6d70):
> undefined reference to `glOrthox'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6d88):
> undefined reference to `glPointSizex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6da0):
> undefined reference to `glPolygonOffsetx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6db8):
> undefined reference to `glRotatex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6dd0):
> undefined reference to `glSampleCoveragex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6de8):
> undefined reference to `glScalex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6e00):
> undefined reference to `glTexEnvx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6e18):
> undefined reference to `glTexEnvxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6e30):
> undefined reference to `glTexParameterx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6e48):
> undefined reference to `glTranslatex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6e60):
> undefined reference to `glClipPlanef'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6e78):
> undefined reference to `glClipPlanex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6e90):
> undefined reference to `glGetClipPlanef'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6ea8):
> undefined reference to `glGetClipPlanex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6ec0):
> undefined reference to `glGetFixedv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6ed8):
> undefined reference to `glGetLightxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6ef0):
> undefined reference to `glGetMaterialxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6f08):
> undefined reference to `glGetTexEnvxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6f20):
> undefined reference to `glGetTexParameterxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6f38):
> undefined reference to `glPointParameterx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6f50):
> undefined reference to `glPointParameterxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x6f68):
> undefined reference to `glTexParameterxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9b78):
> undefined reference to `glAlphaFuncx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9b90):
> undefined reference to `glClearColorx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9ba8):
> undefined reference to `glClearDepthx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9bc0):
> undefined reference to `glColor4x'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9bd8):
> undefined reference to `glDepthRangex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9bf0):
> undefined reference to `glFogx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9c08):
> undefined reference to `glFogxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9c20):
> undefined reference to `glFrustumf'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9c38):
> undefined reference to `glFrustumx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9c50):
> undefined reference to `glLightModelx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9c68):
> undefined reference to `glLightModelxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9c80):
> undefined reference to `glLightx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9c98):
> undefined reference to `glLightxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9cb0):
> undefined reference to `glLineWidthx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9cc8):
> undefined reference to `glLoadMatrixx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9ce0):
> undefined reference to `glMaterialx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9cf8):
> undefined reference to `glMaterialxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9d10):
> undefined reference to `glMultMatrixx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9d28):
> undefined reference to `glMultiTexCoord4x'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9d40):
> undefined reference to `glNormal3x'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9d58):
> undefined reference to `glOrthof'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9d70):
> undefined reference to `glOrthox'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9d88):
> undefined reference to `glPointSizex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9da0):
> undefined reference to `glPolygonOffsetx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9db8):
> undefined reference to `glRotatex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9dd0):
> undefined reference to `glSampleCoveragex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9de8):
> undefined reference to `glScalex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9e00):
> undefined reference to `glTexEnvx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9e18):
> undefined reference to `glTexEnvxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9e30):
> undefined reference to `glTexParameterx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9e48):
> undefined reference to `glTranslatex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9e60):
> undefined reference to `glClipPlanef'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9e78):
> undefined reference to `glClipPlanex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9e90):
> undefined reference to `glGetClipPlanef'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9ea8):
> undefined reference to `glGetClipPlanex'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9ec0):
> undefined reference to `glGetFixedv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9ed8):
> undefined reference to `glGetLightxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9ef0):
> undefined reference to `glGetMaterialxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9f08):
> undefined reference to `glGetTexEnvxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9f20):
> undefined reference to `glGetTexParameterxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9f38):
> undefined reference to `glPointParameterx'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9f50):
> undefined reference to `glPointParameterxv'
> ../../../../src/mapi/glapi/.libs/libglapi.a(glapi_libglapi_la-glapi_getproc.o):(.data.rel.ro+0x9f68):
> undefined reference to `glTexParameterxv'
> collect2: error: ld returned 1 exit status
>
>
>
> Yuzhu Lu
> Senior User Interface Developer
> Wolfram Research Inc.
>
>
>
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