<div dir="ltr"> <div class="gmail_extra"> <div class="gmail_quote">On Tue, Nov 18, 2014 at 12:44 AM, Iago Toral Quiroga <<a href="mailto:itoral@igalia.com" target="_blank">itoral@igalia.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">From: Samuel Iglesias Gonsalvez <<a href="mailto:siglesias@igalia.com">siglesias@igalia.com</a>> We will use this later on to handle uint conversion scenarios in a master convert function. Signed-off-by: Samuel Iglesias Gonsalvez <<a href="mailto:siglesias@igalia.com">siglesias@igalia.com</a>> --- src/mesa/main/format_pack.c.mako | 88 ++++++++++++++++++++++++++++++++++++++++ src/mesa/main/format_pack.h | 3 ++ 2 files changed, 91 insertions(+) diff --git a/src/mesa/main/format_pack.c.mako b/src/mesa/main/format_pack.c.mako index 13a20c1..b9f4656 100644 --- a/src/mesa/main/format_pack.c.mako +++ b/src/mesa/main/format_pack.c.mako @@ -150,6 +150,62 @@ pack_ubyte_r11g11b10_float(const GLubyte src[4], void *dst) *d = float3_to_r11g11b10f(rgb); } +/* uint packing functions */ + +%for f in rgb_formats: + %if not f.is_int(): + <% continue %> + %elif f.is_normalized(): + <% continue %> + %elif f.is_compressed(): + <% continue %> + %endif + +static inline void +pack_uint_${f.short_name()}(const GLuint src[4], void *dst) +{ + %for (i, c) in enumerate(f.channels): + <% i = f.swizzle.inverse()[i] %> + %if c.type == 'x': + <% continue %> + %endif + + ${channel_datatype(c)} ${<a href="http://c.name" target="_blank">c.name</a>} = + %if not f.is_normalized(): </blockquote><div> </div><div>This if isn't needed. If you want the assertion, an "assert not f.is_normalized" would be ok, but I don't see the need given the continues above. </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> + %if c.type == parser.FLOAT and c.size == 32: + UINT_TO_FLOAT(src[${i}]); </blockquote><div> </div><div>Why are we doing UINT_TO_FLOAT here? If these are for non-normalied functions, shouldn't we just be clampping the floating-point value to the maximum range for the integer? </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> + %elif c.type == parser.FLOAT and c.size == 16: + _mesa_float_to_half(UINT_TO_FLOAT(src[${i}])); + %else: + (${channel_datatype(c)}) src[${i}]; + %endif + %else: + <% assert False %> + %endif + %endfor + + %if f.layout == parser.ARRAY: + ${format_datatype(f)} *d = (${format_datatype(f)} *)dst; + %for (i, c) in enumerate(f.channels): + %if c.type == 'x': + <% continue %> + %endif + d[${i}] = ${<a href="http://c.name" target="_blank">c.name</a>}; + %endfor + %elif f.layout == parser.PACKED: + ${format_datatype(f)} d = 0; + %for (i, c) in enumerate(f.channels): + %if c.type == 'x': + <% continue %> + %endif + d |= PACK(${<a href="http://c.name" target="_blank">c.name</a>}, ${c.shift}, ${c.size}); + %endfor + (*(${format_datatype(f)} *)dst) = d; + %else: + <% assert False %> + %endif +} +%endfor /* float packing functions */ @@ -298,6 +354,38 @@ _mesa_pack_ubyte_rgba_row(mesa_format format, GLuint n, } /** + * Pack a row of GLuint rgba[4] values to the destination. + */ +void +_mesa_pack_uint_rgba_row(mesa_format format, GLuint n, + const GLuint src[][4], void *dst) +{ + GLuint i; + GLubyte *d = dst; + + switch (format) { +%for f in rgb_formats: + %if not f.is_int(): + <% continue %> + %elif f.is_normalized(): + <% continue %> + %elif f.is_compressed(): + <% continue %> + %endif + + case ${<a href="http://f.name" target="_blank">f.name</a>}: + for (i = 0; i < n; ++i) { + pack_uint_${f.short_name()}(src[i], d); + d += ${f.block_size() / 8}; + } + break; +%endfor + default: + assert(!"Invalid format"); + } +} + +/** * Pack a row of GLfloat rgba[4] values to the destination. */ void diff --git a/src/mesa/main/format_pack.h b/src/mesa/main/format_pack.h index 2577def..1582ad1 100644 --- a/src/mesa/main/format_pack.h +++ b/src/mesa/main/format_pack.h @@ -77,6 +77,9 @@ extern void _mesa_pack_ubyte_rgba_row(mesa_format format, GLuint n, const GLubyte src[][4], void *dst); +extern void +_mesa_pack_uint_rgba_row(mesa_format format, GLuint n, + const GLuint src[][4], void *dst); extern void _mesa_pack_ubyte_rgba_rect(mesa_format format, GLuint width, GLuint height, -- 1.9.1 _______________________________________________ mesa-dev mailing list <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/mesa-dev" target="_blank">http://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </blockquote></div> </div></div>