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v3d: Add an assert that we don't provide an invalid texture return words.

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The docs had an update noting this restriction, so reflect it in the code.
This commit is contained in:
Eric Anholt 2018-07-16 12:41:28 -07:00
parent d661d78464
commit 26f830d9fc
1 changed files with 8 additions and 0 deletions
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8
src/broadcom/compiler/v3d40_tex.c
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@ -153,6 +153,14 @@ v3d40_vir_emit_tex(struct v3d_compile *c, nir_tex_instr *instr)
(1 << MIN2(instr_return_channels,
c->key->tex[unit].return_channels)) - 1;
/* Word enables can't ask for more channels than the output type could
* provide (2 for f16, 4 for 32-bit).
*/
assert(!p1_unpacked.output_type_32_bit ||
p0_unpacked.return_words_of_texture_data < (1 << 4));
assert(p1_unpacked.output_type_32_bit ||
p0_unpacked.return_words_of_texture_data < (1 << 2));
uint32_t p0_packed;
V3D41_TMU_CONFIG_PARAMETER_0_pack(NULL,
(uint8_t *)&p0_packed,