diff options
author | Eric Anholt <[email protected]> | 2014-12-15 11:25:23 -0800 |
---|---|---|
committer | Eric Anholt <[email protected]> | 2014-12-15 14:28:23 -0800 |
commit | 214a169b3268bed63785d3e5953b24022f1beccb (patch) | |
tree | cf86e4ff0512a7ffe693a82244e8345966973510 /src/gallium/drivers/vc4 | |
parent | 1fa1ee56a042a4a50bebf91cea476b7fea491649 (diff) |
vc4: Refactor vertex attribute conversions a bit.
There was just way too much indentation.
Diffstat (limited to 'src/gallium/drivers/vc4')
-rw-r--r-- | src/gallium/drivers/vc4/vc4_program.c | 65 |
1 files changed, 40 insertions, 25 deletions
diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c index 0bec265a798..fd9cd5e3471 100644 --- a/src/gallium/drivers/vc4/vc4_program.c +++ b/src/gallium/drivers/vc4/vc4_program.c @@ -986,6 +986,43 @@ tgsi_to_qir_uarl(struct vc4_compile *c, return qir_SHL(c, src[0 * 4 + i], qir_uniform_ui(c, 4)); } +static struct qreg +get_channel_from_vpm(struct vc4_compile *c, + struct qreg *vpm_reads, + uint8_t swiz, + const struct util_format_description *desc) +{ + const struct util_format_channel_description *chan = + &desc->channel[swiz]; + struct qreg temp; + + if (swiz > UTIL_FORMAT_SWIZZLE_W) + return get_swizzled_channel(c, vpm_reads, swiz); + else if (chan->size == 32 && + chan->type == UTIL_FORMAT_TYPE_FLOAT) { + return get_swizzled_channel(c, vpm_reads, swiz); + } else if (chan->size == 8 && + (chan->type == UTIL_FORMAT_TYPE_UNSIGNED || + chan->type == UTIL_FORMAT_TYPE_SIGNED) && + chan->normalized) { + struct qreg vpm = vpm_reads[0]; + if (chan->type == UTIL_FORMAT_TYPE_SIGNED) + vpm = qir_XOR(c, vpm, qir_uniform_ui(c, 0x80808080)); + temp = qir_UNPACK_8_F(c, vpm, swiz); + + if (chan->type == UTIL_FORMAT_TYPE_SIGNED) { + return qir_FSUB(c, qir_FMUL(c, + temp, + qir_uniform_f(c, 2.0)), + qir_uniform_f(c, 1.0)); + } else { + return temp; + } + } else { + return c->undef; + } +} + static void emit_vertex_input(struct vc4_compile *c, int attr) { @@ -1010,22 +1047,10 @@ emit_vertex_input(struct vc4_compile *c, int attr) for (int i = 0; i < 4; i++) { uint8_t swiz = desc->swizzle[i]; - struct qreg result; + struct qreg result = get_channel_from_vpm(c, vpm_reads, + swiz, desc); - if (swiz > UTIL_FORMAT_SWIZZLE_W) - result = get_swizzled_channel(c, vpm_reads, swiz); - else if (desc->channel[swiz].size == 32 && - desc->channel[swiz].type == UTIL_FORMAT_TYPE_FLOAT) { - result = get_swizzled_channel(c, vpm_reads, swiz); - } else if (desc->channel[swiz].size == 8 && - (desc->channel[swiz].type == UTIL_FORMAT_TYPE_UNSIGNED || - desc->channel[swiz].type == UTIL_FORMAT_TYPE_SIGNED) && - desc->channel[swiz].normalized) { - struct qreg vpm = vpm_reads[0]; - if (desc->channel[swiz].type == UTIL_FORMAT_TYPE_SIGNED) - vpm = qir_XOR(c, vpm, qir_uniform_ui(c, 0x80808080)); - result = qir_UNPACK_8_F(c, vpm, swiz); - } else { + if (result.file == QFILE_NULL) { if (!format_warned) { fprintf(stderr, "vtx element %d unsupported type: %s\n", @@ -1034,16 +1059,6 @@ emit_vertex_input(struct vc4_compile *c, int attr) } result = qir_uniform_f(c, 0.0); } - - if (desc->channel[swiz].normalized && - desc->channel[swiz].type == UTIL_FORMAT_TYPE_SIGNED) { - result = qir_FSUB(c, - qir_FMUL(c, - result, - qir_uniform_f(c, 2.0)), - qir_uniform_f(c, 1.0)); - } - c->inputs[attr * 4 + i] = result; } } |