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shader: refactor out swizzled clipdist create.

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This function is buggy, and we want to reuse it, extract it out,
the next patch will fix it.

Tested-by: Jakob Bornecrantz <jakob@collabora.com>
macos/master
Dave Airlie 7 years ago
parent 75da5a7b99
commit fbd75315d6
1 changed files with 21 additions and 8 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 29
      src/vrend_shader.c

29
src/vrend_shader.c
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@ -1518,6 +1518,25 @@ static int translate_tex(struct dump_ctx *ctx,
return emit_buf(ctx, buf);
}
static void
create_swizzled_clipdist(struct dump_ctx *ctx,
char *result,
const struct tgsi_full_src_register *src,
int input_idx,
bool gl_in,
const char *stypeprefix,
const char *prefix,
const char *arrayname)
{
int idx;
idx = ctx->inputs[input_idx].sid * 4;
idx += src->Register.SwizzleX;
if (gl_in)
snprintf(result, 255, "%s(vec4(%sgl_in%s.%s[%d]))", stypeprefix, prefix, arrayname, ctx->inputs[input_idx].glsl_name, idx);
else
snprintf(result, 255, "%s(vec4(%s%s%s[%d]))", stypeprefix, prefix, arrayname, ctx->inputs[input_idx].glsl_name, idx);
}
static boolean
iter_instruction(struct tgsi_iterate_context *iter,
struct tgsi_full_instruction *inst)
@ -1700,10 +1719,7 @@ iter_instruction(struct tgsi_iterate_context *iter,
else if (ctx->inputs[j].glsl_gl_in) {
/* GS input clipdist requires a conversion */
if (ctx->inputs[j].name == TGSI_SEMANTIC_CLIPDIST) {
int idx;
idx = ctx->inputs[j].sid * 4;
idx += src->Register.SwizzleX;
snprintf(srcs[i], 255, "%s(vec4(%sgl_in%s.%s[%d]))", stypeprefix, prefix, arrayname, ctx->inputs[j].glsl_name, idx);
create_swizzled_clipdist(ctx, srcs[i], src, j, true, stypeprefix, prefix, arrayname);
} else {
snprintf(srcs[i], 255, "%s(vec4(%sgl_in%s.%s)%s)", stypeprefix, prefix, arrayname, ctx->inputs[j].glsl_name, swizzle);
}
@ -1713,10 +1729,7 @@ iter_instruction(struct tgsi_iterate_context *iter,
else if (ctx->inputs[j].name == TGSI_SEMANTIC_FACE)
snprintf(srcs[i], 255, "%s(%s ? 1.0 : -1.0)", stypeprefix, ctx->inputs[j].glsl_name);
else if (ctx->inputs[j].name == TGSI_SEMANTIC_CLIPDIST) {
int idx;
idx = ctx->inputs[j].sid * 4;
idx += src->Register.SwizzleX;
snprintf(srcs[i], 255, "%s(vec4(%s%s%s[%d]))", stypeprefix, prefix, arrayname, ctx->inputs[j].glsl_name, idx);
create_swizzled_clipdist(ctx, srcs[i], src, j, false, stypeprefix, prefix, arrayname);
} else {
const char *srcstypeprefix = stypeprefix;
if (stype == TGSI_TYPE_UNSIGNED &&

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