diff options
Diffstat (limited to 'src/broadcom/compiler')
| -rw-r--r-- | src/broadcom/compiler/nir_to_vir.c | 48 | ||||
| -rw-r--r-- | src/broadcom/compiler/v3d_compiler.h | 6 |
2 files changed, 40 insertions, 14 deletions
diff --git a/src/broadcom/compiler/nir_to_vir.c b/src/broadcom/compiler/nir_to_vir.c index 6ec5db58a2..77d460c1b6 100644 --- a/src/broadcom/compiler/nir_to_vir.c +++ b/src/broadcom/compiler/nir_to_vir.c @@ -337,6 +337,9 @@ ntq_emit_tex(struct v3d_compile *c, nir_tex_instr *instr) .fetch_sample_mode = instr->op == nir_texop_txf, }; + struct V3D33_TEXTURE_UNIFORM_PARAMETER_1_CFG_MODE1 p1_unpacked = { + }; + switch (instr->sampler_dim) { case GLSL_SAMPLER_DIM_1D: if (instr->is_array) @@ -419,11 +422,35 @@ ntq_emit_tex(struct v3d_compile *c, nir_tex_instr *instr) } } + bool return_16 = (c->key->tex[unit].return_size == 16 || + p0_unpacked.shadow); + + /* Limit the number of channels returned to both how many the NIR + * instruction writes and how many the instruction could produce. + */ + uint32_t instr_return_channels = nir_tex_instr_dest_size(instr); + if (return_16) + instr_return_channels = (instr_return_channels + 1) / 2; + + p1_unpacked.return_words_of_texture_data = + (1 << MIN2(instr_return_channels, + c->key->tex[unit].return_channels)) - 1; + uint32_t p0_packed; V3D33_TEXTURE_UNIFORM_PARAMETER_0_CFG_MODE1_pack(NULL, (uint8_t *)&p0_packed, &p0_unpacked); + uint32_t p1_packed; + V3D33_TEXTURE_UNIFORM_PARAMETER_1_CFG_MODE1_pack(NULL, + (uint8_t *)&p1_packed, + &p1_unpacked); + /* Load unit number into the address field, which will be be used by + * the driver to decide which texture to put in the actual address + * field. + */ + p1_packed |= unit << 5; + /* There is no native support for GL texture rectangle coordinates, so * we have to rescale from ([0, width], [0, height]) to ([0, 1], [0, * 1]). @@ -439,7 +466,7 @@ ntq_emit_tex(struct v3d_compile *c, nir_tex_instr *instr) struct qreg texture_u[] = { vir_uniform(c, QUNIFORM_TEXTURE_CONFIG_P0_0 + unit, p0_packed), - vir_uniform(c, QUNIFORM_TEXTURE_CONFIG_P1, unit), + vir_uniform(c, QUNIFORM_TEXTURE_CONFIG_P1, p1_packed), }; uint32_t next_texture_u = 0; @@ -460,17 +487,16 @@ ntq_emit_tex(struct v3d_compile *c, nir_tex_instr *instr) } } - bool return_16 = (c->key->tex[unit].return_size == 16 || - p0_unpacked.shadow); - struct qreg return_values[4]; - for (int i = 0; i < c->key->tex[unit].return_channels; i++) - return_values[i] = vir_LDTMU(c); - /* Swizzling .zw of an RG texture should give undefined results, not - * crash the compiler. - */ - for (int i = c->key->tex[unit].return_channels; i < 4; i++) - return_values[i] = c->undef; + for (int i = 0; i < 4; i++) { + /* Swizzling .zw of an RG texture should give undefined + * results, not crash the compiler. + */ + if (p1_unpacked.return_words_of_texture_data & (1 << i)) + return_values[i] = vir_LDTMU(c); + else + return_values[i] = c->undef; + } for (int i = 0; i < nir_tex_instr_dest_size(instr); i++) { struct qreg chan; diff --git a/src/broadcom/compiler/v3d_compiler.h b/src/broadcom/compiler/v3d_compiler.h index 1111102e6b..7cb2e59b8f 100644 --- a/src/broadcom/compiler/v3d_compiler.h +++ b/src/broadcom/compiler/v3d_compiler.h @@ -215,9 +215,9 @@ enum quniform_contents { * A reference to a texture config parameter 1 uniform. * * This is a uniform implicitly loaded with a QPU_W_TMU* write, which - * defines texture width, height, filters, and wrap modes. It will be - * found as a parameter to the second QOP_TEX_[STRB] instruction in a - * sequence. + * has the pointer to the indirect texture state. Our data[] field + * will have a packed p1 value, but the address field will be just + * which texture unit's texture should be referenced. */ QUNIFORM_TEXTURE_CONFIG_P1, |