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Trouble with float16

Polar01
Beginner
102 Views
Hi,

I got an access violation when I do the following :

shaderParams->params.matte.Cd= RGBAtoSpectrum(shaderParams->params.matte.Cd.s0123);

If I do the following I have no crash :

float16 _tempSpectrum_ = 0;
_tempSpectrum_ = shaderParams->params.matte.Cd;
shaderParams->params.matte.Cd= RGBAtoSpectrum(_tempSpectrum_.s0123);

Where :

ShaderParameters* shaderParams : It is a local variable

It has the following definition :

struct __attribute__((packed)) ShaderParam_ashikhmin
{
float Kd __attribute__((packed));
float16 Cd __attribute__((packed));
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float exponent_u __attribute__((packed));
float exponent_v __attribute__((packed));
float eta __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_ashikhmin_velvet
{
float Kd __attribute__((packed));
float16 Cd __attribute__((packed));
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float rough __attribute__((packed));
float eta __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_debug
{
float Kd __attribute__((packed));
float16 Cs __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_emitter
{
float power __attribute__((packed));
float16 Cs __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_emitter_blackbody
{
float power __attribute__((packed));
float temperature __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_emitter_textured
{
int filename __attribute__((packed));
float power __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_glass
{
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float eta __attribute__((packed));
int caustics __attribute__((packed));
int TIR __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_glass_rough
{
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float roughness __attribute__((packed));
float eta __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_glass_textured
{
int filename __attribute__((packed));
float Ks __attribute__((packed));
float eta __attribute__((packed));
int caustics __attribute__((packed));
int TIR __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_glossy
{
float Kd __attribute__((packed));
float16 Cd __attribute__((packed));
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float eta __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_glossy_textured
{
int diffuseFilename __attribute__((packed));
float Kd __attribute__((packed));
int bumpMapFilename __attribute__((packed));
float Kb __attribute__((packed));
int normalMapFilename __attribute__((packed));
float scaleU __attribute__((packed));
float scaleV __attribute__((packed));
int flipU __attribute__((packed));
int flipV __attribute__((packed));
float Ks __attribute__((packed));
float eta __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_matte
{
float Kd __attribute__((packed));
float16 Cd __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_matte_textured
{
int diffuseFilename __attribute__((packed));
float Kd __attribute__((packed));
int bumpMapFilename __attribute__((packed));
float Kb __attribute__((packed));
int normalMapFilename __attribute__((packed));
float scaleU __attribute__((packed));
float scaleV __attribute__((packed));
int flipU __attribute__((packed));
int flipV __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_metal_rough
{
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float roughness __attribute__((packed));
float eta __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_mirror
{
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float eta __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_mirror_textured
{
int filename __attribute__((packed));
float16 Cs __attribute__((packed));
float eta __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_oren_nayar
{
float Kd __attribute__((packed));
float16 Cd __attribute__((packed));
float roughness __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_phong
{
float Kd __attribute__((packed));
float16 Cd __attribute__((packed));
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float exponent __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_phong_textured
{
int diffuseFilename __attribute__((packed));
float Kd __attribute__((packed));
int bumpMapFilename __attribute__((packed));
float Kb __attribute__((packed));
int normalMapFilename __attribute__((packed));
float scaleU __attribute__((packed));
float scaleV __attribute__((packed));
int flipU __attribute__((packed));
int flipV __attribute__((packed));
float Ks __attribute__((packed));
float exponent __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_transmissive
{
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float eta __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_mapping_normal
{
};
struct __attribute__((packed)) ShaderParam_mapping_tangent
{
};
struct __attribute__((packed)) ShaderParam_ward
{
float Kd __attribute__((packed));
float16 Cd __attribute__((packed));
float Ks __attribute__((packed));
float16 Cs __attribute__((packed));
float xrough __attribute__((packed));
float yrough __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_soap_bubble
{
};
struct __attribute__((packed)) ShaderParam_tc_builtinfunctions
{
float Kd __attribute__((packed));
float16 Cs __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_tc_closure_mix
{
float Kd1 __attribute__((packed));
float16 Cd1 __attribute__((packed));
float Kd2 __attribute__((packed));
float16 Cd2 __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_tc_normal_modify
{
float Kd __attribute__((packed));
float16 Cd __attribute__((packed));
float sx __attribute__((packed));
float sy __attribute__((packed));
float sz __attribute__((packed));
};
struct __attribute__((packed)) ShaderParam_tc_texture
{
int diffuseFilename __attribute__((packed));
float Kd __attribute__((packed));
int bumpMapFilename __attribute__((packed));
float Kb __attribute__((packed));
int normalMapFilename __attribute__((packed));
float scaleU __attribute__((packed));
float scaleV __attribute__((packed));
int flipU __attribute__((packed));
int flipV __attribute__((packed));
};
struct __attribute__((packed)) ShaderParametersStruct
{
uint shaderId __attribute__((packed));
union __attribute__((packed))
{
struct ShaderParam_ashikhmin ashikhmin;
struct ShaderParam_ashikhmin_velvet ashikhmin_velvet;
struct ShaderParam_debug debug;
struct ShaderParam_emitter emitter;
struct ShaderParam_emitter_blackbody emitter_blackbody;
struct ShaderParam_emitter_textured emitter_textured;
struct ShaderParam_glass glass;
struct ShaderParam_glass_rough glass_rough;
struct ShaderParam_glass_textured glass_textured;
struct ShaderParam_glossy glossy;
struct ShaderParam_glossy_textured glossy_textured;
struct ShaderParam_matte matte;
struct ShaderParam_matte_textured matte_textured;
struct ShaderParam_metal_rough metal_rough;
struct ShaderParam_mirror mirror;
struct ShaderParam_mirror_textured mirror_textured;
struct ShaderParam_oren_nayar oren_nayar;
struct ShaderParam_phong phong;
struct ShaderParam_phong_textured phong_textured;
struct ShaderParam_transmissive transmissive;
struct ShaderParam_mapping_normal mapping_normal;
struct ShaderParam_mapping_tangent mapping_tangent;
struct ShaderParam_ward ward;
struct ShaderParam_soap_bubble soap_bubble;
struct ShaderParam_tc_builtinfunctions tc_builtinfunctions;
struct ShaderParam_tc_closure_mix tc_closure_mix;
struct ShaderParam_tc_normal_modify tc_normal_modify;
struct ShaderParam_tc_texture tc_texture;
} params __attribute__((packed));
};
#define ShaderParameters struct ShaderParametersStruct
struct __attribute__((packed)) ShaderParam_ashikhmin{float Kd __attribute__((packed));float16 Cd __attribute__((packed));float Ks __attribute__((packed));float16 Cs __attribute__((packed));float exponent_u __attribute__((packed));float exponent_v __attribute__((packed));float eta __attribute__((packed));};struct __attribute__((packed)) ShaderParam_ashikhmin_velvet{float Kd __attribute__((packed));float16 Cd __attribute__((packed));float Ks __attribute__((packed));float16 Cs __attribute__((packed));float rough __attribute__((packed));float eta __attribute__((packed));};struct __attribute__((packed)) ShaderParam_debug{float Kd __attribute__((packed));float16 Cs __attribute__((packed));};struct __attribute__((packed)) ShaderParam_emitter{float power __attribute__((packed));float16 Cs __attribute__((packed));};struct __attribute__((packed)) ShaderParam_emitter_blackbody{float power __attribute__((packed));float temperature __attribute__((packed));};struct __attribute__((packed)) ShaderParam_emitter_textured{int filename __attribute__((packed));float power __attribute__((packed));};struct __attribute__((packed)) ShaderParam_glass{float Ks __attribute__((packed));float16 Cs __attribute__((packed));float eta __attribute__((packed));int caustics __attribute__((packed));int TIR __attribute__((packed));};struct __attribute__((packed)) ShaderParam_glass_rough{float Ks __attribute__((packed));float16 Cs __attribute__((packed));float roughness __attribute__((packed));float eta __attribute__((packed));};struct __attribute__((packed)) ShaderParam_glass_textured{int filename __attribute__((packed));float Ks __attribute__((packed));float eta __attribute__((packed));int caustics __attribute__((packed));int TIR __attribute__((packed));};struct __attribute__((packed)) ShaderParam_glossy{float Kd __attribute__((packed));float16 Cd __attribute__((packed));float Ks __attribute__((packed));float16 Cs __attribute__((packed));float eta __attribute__((packed));};struct __attribute__((packed)) ShaderParam_glossy_textured{int diffuseFilename __attribute__((packed));float Kd __attribute__((packed));int bumpMapFilename __attribute__((packed));float Kb __attribute__((packed));int normalMapFilename __attribute__((packed));float scaleU __attribute__((packed));float scaleV __attribute__((packed));int flipU __attribute__((packed));int flipV __attribute__((packed));float Ks __attribute__((packed));float eta __attribute__((packed));};struct __attribute__((packed)) ShaderParam_matte{float Kd __attribute__((packed));float16 Cd __attribute__((packed));};struct __attribute__((packed)) ShaderParam_matte_textured{int diffuseFilename __attribute__((packed));float Kd __attribute__((packed));int bumpMapFilename __attribute__((packed));float Kb __attribute__((packed));int normalMapFilename __attribute__((packed));float scaleU __attribute__((packed));float scaleV __attribute__((packed));int flipU __attribute__((packed));int flipV __attribute__((packed));};struct __attribute__((packed)) ShaderParam_metal_rough{float Ks __attribute__((packed));float16 Cs __attribute__((packed));float roughness __attribute__((packed));float eta __attribute__((packed));};struct __attribute__((packed)) ShaderParam_mirror{float Ks __attribute__((packed));float16 Cs __attribute__((packed));float eta __attribute__((packed));};struct __attribute__((packed)) ShaderParam_mirror_textured{int filename __attribute__((packed));float16 Cs __attribute__((packed));float eta __attribute__((packed));};struct __attribute__((packed)) ShaderParam_oren_nayar{float Kd __attribute__((packed));float16 Cd __attribute__((packed));float roughness __attribute__((packed));};struct __attribute__((packed)) ShaderParam_phong{float Kd __attribute__((packed));float16 Cd __attribute__((packed));float Ks __attribute__((packed));float16 Cs __attribute__((packed));float exponent __attribute__((packed));};struct __attribute__((packed)) ShaderParam_phong_textured{int diffuseFilename __attribute__((packed));float Kd __attribute__((packed));int bumpMapFilename __attribute__((packed));float Kb __attribute__((packed));int normalMapFilename __attribute__((packed));float scaleU __attribute__((packed));float scaleV __attribute__((packed));int flipU __attribute__((packed));int flipV __attribute__((packed));float Ks __attribute__((packed));float exponent __attribute__((packed));};struct __attribute__((packed)) ShaderParam_transmissive{float Ks __attribute__((packed));float16 Cs __attribute__((packed));float eta __attribute__((packed));};struct __attribute__((packed)) ShaderParam_mapping_normal{};struct __attribute__((packed)) ShaderParam_mapping_tangent{};struct __attribute__((packed)) ShaderParam_ward{float Kd __attribute__((packed));float16 Cd __attribute__((packed));float Ks __attribute__((packed));float16 Cs __attribute__((packed));float xrough __attribute__((packed));float yrough __attribute__((packed));};struct __attribute__((packed)) ShaderParam_soap_bubble{};struct __attribute__((packed)) ShaderParam_tc_builtinfunctions{float Kd __attribute__((packed));float16 Cs __attribute__((packed));};struct __attribute__((packed)) ShaderParam_tc_closure_mix{float Kd1 __attribute__((packed));float16 Cd1 __attribute__((packed));float Kd2 __attribute__((packed));float16 Cd2 __attribute__((packed));};struct __attribute__((packed)) ShaderParam_tc_normal_modify{float Kd __attribute__((packed));float16 Cd __attribute__((packed));float sx __attribute__((packed));float sy __attribute__((packed));float sz __attribute__((packed));};struct __attribute__((packed)) ShaderParam_tc_texture{int diffuseFilename __attribute__((packed));float Kd __attribute__((packed));int bumpMapFilename __attribute__((packed));float Kb __attribute__((packed));int normalMapFilename __attribute__((packed));float scaleU __attribute__((packed));float scaleV __attribute__((packed));int flipU __attribute__((packed));int flipV __attribute__((packed));};struct __attribute__((packed)) ShaderParametersStruct{uint shaderId __attribute__((packed));union __attribute__((packed)){struct ShaderParam_ashikhmin ashikhmin;struct ShaderParam_ashikhmin_velvet ashikhmin_velvet;struct ShaderParam_debug debug;struct ShaderParam_emitter emitter;struct ShaderParam_emitter_blackbody emitter_blackbody;struct ShaderParam_emitter_textured emitter_textured;struct ShaderParam_glass glass;struct ShaderParam_glass_rough glass_rough;struct ShaderParam_glass_textured glass_textured;struct ShaderParam_glossy glossy;struct ShaderParam_glossy_textured glossy_textured;struct ShaderParam_matte matte;struct ShaderParam_matte_textured matte_textured;struct ShaderParam_metal_rough metal_rough;struct ShaderParam_mirror mirror;struct ShaderParam_mirror_textured mirror_textured;struct ShaderParam_oren_nayar oren_nayar;struct ShaderParam_phong phong;struct ShaderParam_phong_textured phong_textured;struct ShaderParam_transmissive transmissive;struct ShaderParam_mapping_normal mapping_normal;struct ShaderParam_mapping_tangent mapping_tangent;struct ShaderParam_ward ward;struct ShaderParam_soap_bubble soap_bubble;struct ShaderParam_tc_builtinfunctions tc_builtinfunctions;struct ShaderParam_tc_closure_mix tc_closure_mix;struct ShaderParam_tc_normal_modify tc_normal_modify;struct ShaderParam_tc_texture tc_texture;} params __attribute__((packed));};#define ShaderParameters struct ShaderParametersStruct
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