[Mesa-dev] [PATCH] mesa: re-implement unpacking of DEPTH_COMPONENT32F

[Patrick Baggett]

On Tue, Nov 22, 2011 at 2:07 PM, Marek Olšák <maraeo at gmail.com> wrote:

> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43122
> ---
>  src/mesa/main/format_unpack.c |   10 ++++++++++
>  1 files changed, 10 insertions(+), 0 deletions(-)
>
> diff --git a/src/mesa/main/format_unpack.c b/src/mesa/main/format_unpack.c
> index 6e2ce7a..52f224a 100644
> --- a/src/mesa/main/format_unpack.c
> +++ b/src/mesa/main/format_unpack.c
> @@ -1751,6 +1751,13 @@ unpack_float_z_Z32(GLuint n, const void *src,
> GLfloat *dst)
>  }
>
>  static void
> +unpack_float_z_Z32F(GLuint n, const void *src, GLfloat *dst)
> +{
> +   const GLfloat *s = ((const GLfloat *) src);
> +   memcpy(dst, s, n * sizeof(float));
> +}
>

Why bother typecasting here in a separate variable 's'?



> +
> +static void
>  unpack_float_z_Z32X24S8(GLuint n, const void *src, GLfloat *dst)
>  {
>    const GLfloat *s = ((const GLfloat *) src);
> @@ -1783,6 +1790,9 @@ _mesa_unpack_float_z_row(gl_format format, GLuint n,
>    case MESA_FORMAT_Z32:
>       unpack = unpack_float_z_Z32;
>       break;
> +   case MESA_FORMAT_Z32_FLOAT:
> +      unpack = unpack_float_z_Z32F;
> +      break;
>    case MESA_FORMAT_Z32_FLOAT_X24S8:
>       unpack = unpack_float_z_Z32X24S8;
>       break;
> --
> 1.7.5.4
>
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