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nir: Use a bitfield for image access qualifiers

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This commit expands the current memory access enum to contain the extra
two bits provided for images.  We choose to follow the SPIR-V convention
of NonReadable and NonWriteable because readonly implies that you *can*
read so readonly + writeonly doesn't make as much sense as NonReadable +
NonWriteable.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jason Ekstrand
2018-08-16 15:11:12 -05:00
parent 48e4fa7dd8
commit 3942943819
9 changed files with 44 additions and 33 deletions
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11
src/compiler/nir/nir_print.c
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@@ -433,11 +433,12 @@ print_var_decl(nir_variable *var, print_state *state)
cent, samp, patch, inv, get_variable_mode_str(var->data.mode, false),
glsl_interp_mode_name(var->data.interpolation));
const char *const coher = (var->data.image.coherent) ? "coherent " : "";
const char *const volat = (var->data.image._volatile) ? "volatile " : "";
const char *const restr = (var->data.image.restrict_flag) ? "restrict " : "";
const char *const ronly = (var->data.image.read_only) ? "readonly " : "";
const char *const wonly = (var->data.image.write_only) ? "writeonly " : "";
enum gl_access_qualifier access = var->data.image.access;
const char *const coher = (access & ACCESS_COHERENT) ? "coherent " : "";
const char *const volat = (access & ACCESS_VOLATILE) ? "volatile " : "";
const char *const restr = (access & ACCESS_RESTRICT) ? "restrict " : "";
const char *const ronly = (access & ACCESS_NON_WRITEABLE) ? "readonly " : "";
const char *const wonly = (access & ACCESS_NON_READABLE) ? "writeonly " : "";
fprintf(fp, "%s%s%s%s%s", coher, volat, restr, ronly, wonly);
fprintf(fp, "%s %s", glsl_get_type_name(var->type),