----- Original Message -----
> Added in _mesa_pack_uint_24_8_depth_stencil_row(). This could be hit
> by something like glDrawPixels(GL_DEPTH_STENCIL,
> GL_UNSIGNED_INT_24_8)
> into a MESA_FORMAT_Z32_FLOAT_X24S8 buffer.
> ---
> src/mesa/main/format_pack.c | 13 +++++++++++++
> 1 files changed, 13 insertions(+), 0 deletions(-)
>
> diff --git a/src/mesa/main/format_pack.c
> b/src/mesa/main/format_pack.c
> index ea1d95e..e20e361 100644
> --- a/src/mesa/main/format_pack.c
> +++ b/src/mesa/main/format_pack.c
> @@ -2530,6 +2530,19 @@
> _mesa_pack_uint_24_8_depth_stencil_row(gl_format format, GLuint n,
> }
> }
> break;
> + case MESA_FORMAT_Z32_FLOAT_X24S8:
> + {
> + const GLdouble scale = 1.0 / (GLdouble) 0xffffff;
> + GLuint *destu = (GLuint *) dst;
> + GLfloat *destf = (GLfloat *) dst;
This is fine, but if there's a lot of similar code for
MESA_FORMAT_Z32_FLOAT_X24S8, then a
struct z32f_x24s8 {
float z;
unsigned s;
};
would make the code easier to read.
Jose
> + GLint i;
> + for (i = 0; i < n; i++) {
> + GLfloat z = (src[i] >> 8) * scale;
> + destf[i * 2 + 0] = z;
> + destu[i * 2 + 1] = src[i] & 0xff;
> + }
> + }
> + break;
> default:
> _mesa_problem(NULL, "bad format %s in _mesa_pack_ubyte_s_row",
> _mesa_get_format_name(format));
> --
> 1.7.3.4
>
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>
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