+ nir_tex_src srcs[8]; /* 8 should be enough */
+ nir_tex_src *p = srcs;
+
+ unsigned idx = 4;
+
+ struct nir_ssa_def *coord;
+ unsigned coord_components;
+ switch (opcode) {
+ case SpvOpImageSampleImplicitLod:
+ case SpvOpImageSampleExplicitLod:
+ case SpvOpImageSampleDrefImplicitLod:
+ case SpvOpImageSampleDrefExplicitLod:
+ case SpvOpImageSampleProjImplicitLod:
+ case SpvOpImageSampleProjExplicitLod:
+ case SpvOpImageSampleProjDrefImplicitLod:
+ case SpvOpImageSampleProjDrefExplicitLod:
+ case SpvOpImageFetch:
+ case SpvOpImageGather:
+ case SpvOpImageDrefGather:
+ case SpvOpImageQueryLod: {
+ /* All these types have the coordinate as their first real argument */
+ switch (sampler_dim) {
+ case GLSL_SAMPLER_DIM_1D:
+ case GLSL_SAMPLER_DIM_BUF:
+ coord_components = 1;
+ break;
+ case GLSL_SAMPLER_DIM_2D:
+ case GLSL_SAMPLER_DIM_RECT:
+ case GLSL_SAMPLER_DIM_MS:
+ coord_components = 2;
+ break;
+ case GLSL_SAMPLER_DIM_3D:
+ case GLSL_SAMPLER_DIM_CUBE:
+ coord_components = 3;
+ break;
+ default:
+ unreachable("Invalid sampler type");
+ }
+
+ if (is_array && texop != nir_texop_lod)
+ coord_components++;
+
+ coord = vtn_ssa_value(b, w[idx++])->def;
+ p->src = nir_src_for_ssa(nir_channels(&b->nb, coord,
+ (1 << coord_components) - 1));
+ p->src_type = nir_tex_src_coord;
+ p++;
+ break;
+ }
+
+ default:
+ coord = NULL;
+ coord_components = 0;
+ break;
+ }
+
+ switch (opcode) {
+ case SpvOpImageSampleProjImplicitLod:
+ case SpvOpImageSampleProjExplicitLod:
+ case SpvOpImageSampleProjDrefImplicitLod:
+ case SpvOpImageSampleProjDrefExplicitLod:
+ /* These have the projector as the last coordinate component */
+ p->src = nir_src_for_ssa(nir_channel(&b->nb, coord, coord_components));
+ p->src_type = nir_tex_src_projector;
+ p++;
+ break;
+
+ default:
+ break;
+ }
+
+ unsigned gather_component = 0;
+ switch (opcode) {
+ case SpvOpImageSampleDrefImplicitLod:
+ case SpvOpImageSampleDrefExplicitLod:
+ case SpvOpImageSampleProjDrefImplicitLod:
+ case SpvOpImageSampleProjDrefExplicitLod:
+ case SpvOpImageDrefGather:
+ /* These all have an explicit depth value as their next source */
+ (*p++) = vtn_tex_src(b, w[idx++], nir_tex_src_comparator);
+ break;
+
+ case SpvOpImageGather:
+ /* This has a component as its next source */
+ gather_component =
+ vtn_value(b, w[idx++], vtn_value_type_constant)->constant->values[0].u32[0];
+ break;
+
+ default:
+ break;
+ }
+
+ /* For OpImageQuerySizeLod, we always have an LOD */
+ if (opcode == SpvOpImageQuerySizeLod)
+ (*p++) = vtn_tex_src(b, w[idx++], nir_tex_src_lod);
+