Attachment 62589 Details for Bug 44519 – add support for half floats

[patch] add support for half floats

0001-translate_test-add-support-for-half-floats.patch (text/plain), 2.01 KB, created by Brian Paul on 2012-06-05 08:04:50 UTC

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Creator: Brian Paul

Created: 2012-06-05 08:04:50 UTC

Size: 2.01 KB

patch

obsolete

>From c3712702977ebeb3fb1de71b1b3770e41be5b7b3 Mon Sep 17 00:00:00 2001
>From: Brian Paul <brianp@vmware.com>
>Date: Tue, 5 Jun 2012 09:03:45 -0600
>Subject: [PATCH] translate_test: add support for half floats
>
>---
> src/gallium/tests/unit/translate_test.c |    8 ++++++++
> 1 files changed, 8 insertions(+), 0 deletions(-)
>
>diff --git a/src/gallium/tests/unit/translate_test.c b/src/gallium/tests/unit/translate_test.c
>index b9e7e25..60a0501 100644
>--- a/src/gallium/tests/unit/translate_test.c
>+++ b/src/gallium/tests/unit/translate_test.c
>@@ -27,6 +27,7 @@
> #include "translate/translate.h"
> #include "util/u_memory.h"
> #include "util/u_format.h"
>+#include "util/u_half.h"
> #include "util/u_cpu_detect.h"
> #include "rtasm/rtasm_cpu.h"
> 
>@@ -57,6 +58,7 @@ int main(int argc, char** argv)
>    unsigned char* byte_buffer;
>    float* float_buffer;
>    double* double_buffer;
>+   uint16_t *half_buffer;
>    unsigned * elts;
>    unsigned count = 4;
>    unsigned i, j, k;
>@@ -137,6 +139,7 @@ int main(int argc, char** argv)
>    byte_buffer = align_malloc(buffer_size, 4096);
>    float_buffer = align_malloc(buffer_size, 4096);
>    double_buffer = align_malloc(buffer_size, 4096);
>+   half_buffer = align_malloc(buffer_size, 4096);
> 
>    elts = align_malloc(count * sizeof *elts, 4096);
> 
>@@ -159,6 +162,9 @@ int main(int argc, char** argv)
>    for (i = 0; i < buffer_size / sizeof(double); ++i)
>       double_buffer[i] = rand_double();
> 
>+   for (i = 0; i < buffer_size / sizeof(double); ++i)
>+      half_buffer[i] = util_float_to_half((float) rand_double());
>+
>    for (i = 0; i < count; ++i)
>       elts[i] = i;
> 
>@@ -246,6 +252,8 @@ int main(int argc, char** argv)
>             buffer[0] = (unsigned char*)float_buffer;
>          else if(input_is_float && input_format_desc->channel[0].size == 64)
>             buffer[0] = (unsigned char*)double_buffer;
>+         else if(input_is_float && input_format_desc->channel[0].size == 16)
>+            buffer[0] = (unsigned char*)half_buffer;
>          else if(input_is_float)
>             abort();
>          else
>-- 
>1.7.3.4
>

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