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translate: implement translation of 10_10_10_2 types

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This is for GL_ARB_vertex_type_2_10_10_10_rev.
I just took the code from u_format_table.c. It's based on pack_rgba_float.
I had no other choice. The u_format hooks are not exactly compatible
with translate. The cleanup of it is left for future work.

Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Marek Olšák 2012-01-02 03:34:09 +01:00
parent 0a8a7144a1
commit d1f11ed3ef
1 changed files with 148 additions and 0 deletions
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148
src/gallium/auxiliary/translate/translate_generic.c
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@ -257,6 +257,126 @@ emit_B8G8R8A8_UNORM( const void *attrib, void *ptr)
out[3] = TO_8_UNORM(in[3]);
}
static void
emit_B10G10R10A2_UNORM( const void *attrib, void *ptr )
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= ((uint32_t)(CLAMP(src[2], 0, 1) * 0x3ff)) & 0x3ff;
value |= (((uint32_t)(CLAMP(src[1], 0, 1) * 0x3ff)) & 0x3ff) << 10;
value |= (((uint32_t)(CLAMP(src[0], 0, 1) * 0x3ff)) & 0x3ff) << 20;
value |= ((uint32_t)(CLAMP(src[3], 0, 1) * 0x3)) << 30;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
static void
emit_B10G10R10A2_USCALED( const void *attrib, void *ptr )
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= ((uint32_t)CLAMP(src[2], 0, 1023)) & 0x3ff;
value |= (((uint32_t)CLAMP(src[1], 0, 1023)) & 0x3ff) << 10;
value |= (((uint32_t)CLAMP(src[0], 0, 1023)) & 0x3ff) << 20;
value |= ((uint32_t)CLAMP(src[3], 0, 3)) << 30;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
static void
emit_B10G10R10A2_SNORM( const void *attrib, void *ptr )
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= (uint32_t)(((uint32_t)(CLAMP(src[2], -1, 1) * 0x1ff)) & 0x3ff) ;
value |= (uint32_t)((((uint32_t)(CLAMP(src[1], -1, 1) * 0x1ff)) & 0x3ff) << 10) ;
value |= (uint32_t)((((uint32_t)(CLAMP(src[0], -1, 1) * 0x1ff)) & 0x3ff) << 20) ;
value |= (uint32_t)(((uint32_t)(CLAMP(src[3], -1, 1) * 0x1)) << 30) ;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
static void
emit_B10G10R10A2_SSCALED( const void *attrib, void *ptr )
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= (uint32_t)(((uint32_t)CLAMP(src[2], -512, 511)) & 0x3ff) ;
value |= (uint32_t)((((uint32_t)CLAMP(src[1], -512, 511)) & 0x3ff) << 10) ;
value |= (uint32_t)((((uint32_t)CLAMP(src[0], -512, 511)) & 0x3ff) << 20) ;
value |= (uint32_t)(((uint32_t)CLAMP(src[3], -2, 1)) << 30) ;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
static void
emit_R10G10B10A2_UNORM( const void *attrib, void *ptr )
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= ((uint32_t)(CLAMP(src[0], 0, 1) * 0x3ff)) & 0x3ff;
value |= (((uint32_t)(CLAMP(src[1], 0, 1) * 0x3ff)) & 0x3ff) << 10;
value |= (((uint32_t)(CLAMP(src[2], 0, 1) * 0x3ff)) & 0x3ff) << 20;
value |= ((uint32_t)(CLAMP(src[3], 0, 1) * 0x3)) << 30;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
static void
emit_R10G10B10A2_USCALED( const void *attrib, void *ptr )
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= ((uint32_t)CLAMP(src[0], 0, 1023)) & 0x3ff;
value |= (((uint32_t)CLAMP(src[1], 0, 1023)) & 0x3ff) << 10;
value |= (((uint32_t)CLAMP(src[2], 0, 1023)) & 0x3ff) << 20;
value |= ((uint32_t)CLAMP(src[3], 0, 3)) << 30;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
static void
emit_R10G10B10A2_SNORM( const void *attrib, void *ptr )
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= (uint32_t)(((uint32_t)(CLAMP(src[0], -1, 1) * 0x1ff)) & 0x3ff) ;
value |= (uint32_t)((((uint32_t)(CLAMP(src[1], -1, 1) * 0x1ff)) & 0x3ff) << 10) ;
value |= (uint32_t)((((uint32_t)(CLAMP(src[2], -1, 1) * 0x1ff)) & 0x3ff) << 20) ;
value |= (uint32_t)(((uint32_t)(CLAMP(src[3], -1, 1) * 0x1)) << 30) ;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
static void
emit_R10G10B10A2_SSCALED( const void *attrib, void *ptr)
{
float *src = (float *)ptr;
uint32_t value = 0;
value |= (uint32_t)(((uint32_t)CLAMP(src[0], -512, 511)) & 0x3ff) ;
value |= (uint32_t)((((uint32_t)CLAMP(src[1], -512, 511)) & 0x3ff) << 10) ;
value |= (uint32_t)((((uint32_t)CLAMP(src[2], -512, 511)) & 0x3ff) << 20) ;
value |= (uint32_t)(((uint32_t)CLAMP(src[3], -2, 1)) << 30) ;
#ifdef PIPE_ARCH_BIG_ENDIAN
value = util_bswap32(value);
#endif
*(uint32_t *)attrib = value;
}
static void
emit_NULL( const void *attrib, void *ptr )
{
@ -461,6 +581,24 @@ static emit_func get_emit_func( enum pipe_format format )
case PIPE_FORMAT_R8G8B8A8_SINT:
return &emit_R8G8B8A8_SINT;
case PIPE_FORMAT_B10G10R10A2_UNORM:
return &emit_B10G10R10A2_UNORM;
case PIPE_FORMAT_B10G10R10A2_USCALED:
return &emit_B10G10R10A2_USCALED;
case PIPE_FORMAT_B10G10R10A2_SNORM:
return &emit_B10G10R10A2_SNORM;
case PIPE_FORMAT_B10G10R10A2_SSCALED:
return &emit_B10G10R10A2_SSCALED;
case PIPE_FORMAT_R10G10B10A2_UNORM:
return &emit_R10G10B10A2_UNORM;
case PIPE_FORMAT_R10G10B10A2_USCALED:
return &emit_R10G10B10A2_USCALED;
case PIPE_FORMAT_R10G10B10A2_SNORM:
return &emit_R10G10B10A2_SNORM;
case PIPE_FORMAT_R10G10B10A2_SSCALED:
return &emit_R10G10B10A2_SSCALED;
default:
assert(0);
return &emit_NULL;
@ -836,6 +974,16 @@ boolean translate_generic_is_output_format_supported(enum pipe_format format)
case PIPE_FORMAT_R8G8_SINT: return TRUE;
case PIPE_FORMAT_R8_SINT: return TRUE;
case PIPE_FORMAT_B10G10R10A2_UNORM: return TRUE;
case PIPE_FORMAT_B10G10R10A2_USCALED: return TRUE;
case PIPE_FORMAT_B10G10R10A2_SNORM: return TRUE;
case PIPE_FORMAT_B10G10R10A2_SSCALED: return TRUE;
case PIPE_FORMAT_R10G10B10A2_UNORM: return TRUE;
case PIPE_FORMAT_R10G10B10A2_USCALED: return TRUE;
case PIPE_FORMAT_R10G10B10A2_SNORM: return TRUE;
case PIPE_FORMAT_R10G10B10A2_SSCALED: return TRUE;
default: return FALSE;
}
}