C++ (Cpp) get_temp_gpr Examples

Example #1

File: fd2_compiler.c Project: ValveSoftware/steamos_mesa

static struct ir2_src_register *
add_src_reg(struct fd2_compile_context *ctx, struct ir2_instruction *alu,
		const struct tgsi_src_register *src)
{
	static const char swiz_vals[] = {
			'x', 'y', 'z', 'w',
	};
	char swiz[5];
	unsigned flags = 0, num = 0;

	switch (src->File) {
	case TGSI_FILE_CONSTANT:
		num = src->Index;
		flags |= IR2_REG_CONST;
		break;
	case TGSI_FILE_INPUT:
		if (ctx->type == PIPE_SHADER_VERTEX) {
			num = src->Index + 1;
		} else {
			flags |= IR2_REG_INPUT;
			num = export_linkage(ctx,
					ctx->input_export_idx[src->Index]);
		}
		break;
	case TGSI_FILE_TEMPORARY:
		num = get_temp_gpr(ctx, src->Index);
		break;
	case TGSI_FILE_IMMEDIATE:
		num = src->Index + ctx->num_regs[TGSI_FILE_CONSTANT];
		flags |= IR2_REG_CONST;
		break;
	default:
		DBG("unsupported src register file: %s",
			tgsi_file_name(src->File));
		assert(0);
		break;
	}

	if (src->Absolute)
		flags |= IR2_REG_ABS;
	if (src->Negate)
		flags |= IR2_REG_NEGATE;

	swiz[0] = swiz_vals[src->SwizzleX];
	swiz[1] = swiz_vals[src->SwizzleY];
	swiz[2] = swiz_vals[src->SwizzleZ];
	swiz[3] = swiz_vals[src->SwizzleW];
	swiz[4] = '\0';

	if ((ctx->need_sync & ((uint64_t)1 << num)) &&
			!(flags & IR2_REG_CONST)) {
		alu->sync = true;
		ctx->need_sync &= ~((uint64_t)1 << num);
	}

	return ir2_reg_create(alu, num, swiz, flags);
}

Example #2

File: fd2_compiler.c Project: etnaviv/mesa

static void
get_predicate(struct fd2_compile_context *ctx, struct tgsi_dst_register *dst,
		struct tgsi_src_register *src)
{
	assert(ctx->pred_reg != -1);

	dst->File      = TGSI_FILE_TEMPORARY;
	dst->WriteMask = TGSI_WRITEMASK_W;
	dst->Indirect  = 0;
	dst->Dimension = 0;
	dst->Index     = get_temp_gpr(ctx, ctx->pred_reg);

	if (src) {
		src_from_dst(src, dst);
		src->SwizzleX  = TGSI_SWIZZLE_W;
		src->SwizzleY  = TGSI_SWIZZLE_W;
		src->SwizzleZ  = TGSI_SWIZZLE_W;
		src->SwizzleW  = TGSI_SWIZZLE_W;
	}
}

Example #3

File: fd2_compiler.c Project: etnaviv/mesa

static struct ir2_register *
add_dst_reg(struct fd2_compile_context *ctx, struct ir2_instruction *alu,
		const struct tgsi_dst_register *dst)
{
	unsigned flags = 0, num = 0;
	char swiz[5];

	switch (dst->File) {
	case TGSI_FILE_OUTPUT:
		flags |= IR2_REG_EXPORT;
		if (ctx->type == PIPE_SHADER_VERTEX) {
			if (dst->Index == ctx->position) {
				num = 62;
			} else if (dst->Index == ctx->psize) {
				num = 63;
			} else {
				num = export_linkage(ctx,
						ctx->output_export_idx[dst->Index]);
			}
		} else {
			num = dst->Index;
		}
		break;
	case TGSI_FILE_TEMPORARY:
		num = get_temp_gpr(ctx, dst->Index);
		break;
	default:
		DBG("unsupported dst register file: %s",
			tgsi_file_name(dst->File));
		assert(0);
		break;
	}

	swiz[0] = (dst->WriteMask & TGSI_WRITEMASK_X) ? 'x' : '_';
	swiz[1] = (dst->WriteMask & TGSI_WRITEMASK_Y) ? 'y' : '_';
	swiz[2] = (dst->WriteMask & TGSI_WRITEMASK_Z) ? 'z' : '_';
	swiz[3] = (dst->WriteMask & TGSI_WRITEMASK_W) ? 'w' : '_';
	swiz[4] = '\0';

	return ir2_reg_create(alu, num, swiz, flags);
}