diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/vc4/vc4_program.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c index 1a7e51e8dbc..26068e283eb 100644 --- a/src/gallium/drivers/vc4/vc4_program.c +++ b/src/gallium/drivers/vc4/vc4_program.c @@ -289,6 +289,22 @@ qir_srgb_decode(struct vc4_compile *c, struct qreg srgb) } static struct qreg +qir_srgb_encode(struct vc4_compile *c, struct qreg linear) +{ + struct qreg low = qir_FMUL(c, linear, qir_uniform_f(c, 12.92)); + struct qreg high = qir_FSUB(c, + qir_FMUL(c, + qir_uniform_f(c, 1.055), + qir_POW(c, + linear, + qir_uniform_f(c, 0.41666))), + qir_uniform_f(c, 0.055)); + + qir_SF(c, qir_FSUB(c, linear, qir_uniform_f(c, 0.0031308))); + return qir_SEL_X_Y_NS(c, low, high); +} + +static struct qreg tgsi_to_qir_umul(struct vc4_compile *c, struct tgsi_full_instruction *tgsi_inst, enum qop op, struct qreg *src, int i) @@ -1414,26 +1430,39 @@ emit_frag_end(struct vc4_compile *c) const uint8_t *format_swiz = vc4_get_format_swizzle(color_format); struct qreg tlb_read_color[4] = { c->undef, c->undef, c->undef, c->undef }; struct qreg dst_color[4] = { c->undef, c->undef, c->undef, c->undef }; + struct qreg linear_dst_color[4] = { c->undef, c->undef, c->undef, c->undef }; if (c->fs_key->blend.blend_enable || c->fs_key->blend.colormask != 0xf) { struct qreg r4 = qir_TLB_COLOR_READ(c); for (int i = 0; i < 4; i++) tlb_read_color[i] = qir_R4_UNPACK(c, r4, i); - for (int i = 0; i < 4; i++) + for (int i = 0; i < 4; i++) { dst_color[i] = get_swizzled_channel(c, tlb_read_color, format_swiz[i]); + if (util_format_is_srgb(color_format) && i != 3) { + linear_dst_color[i] = + qir_srgb_decode(c, dst_color[i]); + } else { + linear_dst_color[i] = dst_color[i]; + } + } } struct qreg blend_color[4]; struct qreg undef_array[4] = { c->undef, c->undef, c->undef, c->undef }; - vc4_blend(c, blend_color, dst_color, + vc4_blend(c, blend_color, linear_dst_color, (c->output_color_index != -1 ? c->outputs + c->output_color_index : undef_array)); + if (util_format_is_srgb(color_format)) { + for (int i = 0; i < 3; i++) + blend_color[i] = qir_srgb_encode(c, blend_color[i]); + } + /* If the bit isn't set in the color mask, then just return the * original dst color, instead. */ |